assembly and operating instructions - remko€¦ · assembly and operating instructions ... 2.1...

Assembly and operating instructions

Read the instructions prior to performing any task!

REMKO Inverter heat pumpsSeries WKFInstructions for the Technician

0110-2016-01 Edition 1, en_GB

Installation and operating instructions (translation of the orig-inal)

Read these operating instructions carefully before commis-sioning / using this device!These instructions are an integral part of the system and mustalways be kept near or on the device.Subject to modifications; No liability accepted for errors or mis-prints!

Table of contents1 Safety and user notes .......................................................................................................................... 5

1.1 General safety notes....................................................................................................................... 51.2 Identification of notes...................................................................................................................... 51.3 Personnel qualifications.................................................................................................................. 51.4 Dangers of failure to observe the safety notes................................................................................ 51.5 Safety-conscious working............................................................................................................... 51.6 Safety notes for the operator........................................................................................................... 61.7 Safety notes for installation, maintenance and inspection.............................................................. 61.8 Unauthorised modification and changes......................................................................................... 61.9 Intended use................................................................................................................................... 61.10 Warranty........................................................................................................................................ 61.11 Transport and packaging.............................................................................................................. 71.12 Environmental protection and recycling........................................................................................ 7

2 Technical Data....................................................................................................................................... 82.1 Units data WKF / WKF-compact 70 ............................................................................................... 82.2 Product data WKF / WKF-compact 70 ......................................................................................... 102.3 Units data WKF/WKF-compact 120/180....................................................................................... 112.4 Product data WKF/WKF-compact 120/180................................................................................... 132.5 Unit data WKF 120/180 Duo ........................................................................................................ 142.6 Product data WKF 120/180 Duo................................................................................................... 162.7 Unit dimensions outdoor module................................................................................................... 172.8 Unit dimensions indoor modules................................................................................................... 172.9 Heat pump service limits in monovalent mode.............................................................................. 222.10 Pump-characteristic curves, indoor module charging pump....................................................... 242.11 Overall sound pressure levels for outdoor modules.................................................................... 252.12 Characteristic curves................................................................................................................... 30

3 Structure and function........................................................................................................................ 453.1 The heat pump in general............................................................................................................. 453.2 WKF series ................................................................................................................................... 513.3 WKF-compact series..................................................................................................................... 51

4 Installation instructions...................................................................................................................... 524.1 System layout WKF/WKF-compact 70.......................................................................................... 524.2 System layout WKF/WKF-compact 120........................................................................................ 534.3 System layout WKF/WKF-compact 180........................................................................................ 544.4 System layout WKF 120 Duo........................................................................................................ 554.5 System layout WKF 180 Duo........................................................................................................ 564.6 General installation instructions.................................................................................................... 574.7 Installation, mounting indoor module............................................................................................ 584.8 Installation, mounting outdoor module.......................................................................................... 60

5 Hydraulic connection.......................................................................................................................... 646 Function of an electrical heating coil................................................................................................ 68

6.1 Function of an electrical heating coil............................................................................................. 686.2 Emergency-heat operation............................................................................................................ 69

7 Cooling of the heat pump................................................................................................................... 708 Corrosion protection.......................................................................................................................... 71

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9 Connection of refrigerant lines.......................................................................................................... 729.1 Connection of refrigerant lines...................................................................................................... 729.2 Commissioning the refrigeration system....................................................................................... 73

10 Elektrical connection.......................................................................................................................... 7610.1 Important Information.................................................................................................................. 76

11 Commissioning................................................................................................................................... 7611.1 Control panel and information on commissioning....................................................................... 76

12 Care and maintenance........................................................................................................................ 7813 Temporary shut-down........................................................................................................................ 7814 Troubleshooting and customer service............................................................................................ 79

14.1 General Troubleshooting ............................................................................................................ 7914.2 Error messages on the outdoor modules.................................................................................... 8014.3 Error messages on the Smart-Control........................................................................................ 82

15 Exploded view and spare parts......................................................................................................... 8915.1 Exploded view outdoor modules WKF/WKF-compact 70 .......................................................... 8915.2 Spare parts list outdoor module WKF/WKF-compact 70 ........................................................... 9015.3 Exploded view outdoor modules WKF/WKF-compact 120......................................................... 9115.4 Spare parts list outdoor module WKF/WKF-compact 120.......................................................... 9215.5 Exploded view outdoor modules WKF/WKF-compact 180......................................................... 9315.6 Spare parts list outdoor module WKF/WKF-compact 180.......................................................... 9415.7 Exploded view outdoor module WKF 120 Duo........................................................................... 9515.8 Spare parts list outdoor module WKF 120 Duo........................................................................... 9615.9 Exploded view outdoor unit WKF 180 Duo................................................................................. 9715.10 Spare parts list for the WKF 180 Duo....................................................................................... 9815.11 Exploded view indoor module WKF 70/120/180....................................................................... 9915.12 Spare parts list indoor modules WKF 70/120/180................................................................... 10015.13 Exploded view indoor modules WKF-compact 70/120/180..................................................... 10215.14 Spare parts list indoor modules WKF-compact 70/120/180 ................................................... 10315.15 Exploded view indoor modules WKF 120/180 Duo................................................................. 10615.16 Spare parts list indoor modules WKF 120/180 Duo................................................................ 107

16 General terms.................................................................................................................................... 10817 Index................................................................................................................................................... 110

REMKO Inverter heat pumps

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1 Safety and user notes1.1 General safety notesCarefully read the operating manual before com-missioning the units for the first time. It containsuseful tips and notes such as hazard warnings toprevent personal injury and material damage.Failure to follow the directions in this manual notonly presents a danger to people, the environmentand the system itself, but will void any claims forliability.

Keep this operating manual and the refrigerantdata sheet near to the units.

1.2 Identification of notesThis section provides an overview of all importantsafety aspects for proper protection of people andsafe and fault-free operation.The instructions andsafety notes contained within this manual must beobserved in order to prevent accidents, personalinjury and material damage.

Notes attached directly to the units must beobserved in their entirety and be kept in a fullylegible condition.

Safety notes in this manual are indicated by sym-bols. Safety notes are introduced with signal wordswhich help to highlight the magnitude of the dangerin question.

DANGER!

Contact with live parts poses an immediatedanger of death due to electric shock. Damageto the insulation or individual components maypose a danger of death.

DANGER!

This combination of symbol and signal wordwarns of a situation in which there is immediatedanger, which if not avoided may be fatal orcause serious injury.

WARNING!

This combination of symbol and signal wordwarns of a potentially hazardous situation,which if not avoided may be fatal or causeserious injury.

CAUTION!

This combination of symbol and signal wordwarns of a potentially hazardous situation,which if not avoided may cause injury or mate-rial and environmental damage.

NOTICE!

This combination of symbol and signal wordwarns of a potentially hazardous situation,which if not avoided may cause material andenvironmental damage.

This symbol highlights useful tips and recom-mendations as well as information for efficientand fault-free operation.

1.3 Personnel qualificationsPersonnel responsible for commissioning, opera-tion, maintenance, inspection and installation mustbe able to demonstrate that they hold a qualifica-tion which proves their ability to undertake thework.

1.4 Dangers of failure to observethe safety notes

Failure to observe the safety notes may pose a riskto people, the environment and the units. Failure toobserve the safety notes may void any claims fordamages.

In particular, failure to observe the safety notesmay pose the following risks:

n The failure of important unit functions.n The failure of prescribed methods of mainte-

nance and repair.n Danger to people on account of electrical and

mechanical effects.

1.5 Safety-conscious workingThe safety notes contained in this manual, theexisting national regulations concerning accidentprevention as well as any internal companyworking, operating and safety regulations must beobserved.

5

1.6 Safety notes for the operatorThe operational safety of the units and compo-nents is only assured providing they are used asintended and in a fully assembled state.

n The units and components may only be set up,installed and maintained by qualified per-sonnel.

n Protective covers (grille) over moving partsmust not be removed from units that are inoperation.

n Do not operate units or components withobvious defects or signs of damage.

n Contact with certain unit parts or componentsmay lead to burns or injury.

n The units and components must not beexposed to any mechanical load, extremelevels of humidity or extreme temperature.

n Spaces in which refrigerant can leak sufficientto load and vent. Otherwise there is danger ofsuffocation.

n All housing parts and device openings, e.g. airinlets and outlets, must be free from foreignobjects, fluids or gases.

n The units must be inspected by a service tech-nician at least once annually. Visual inspec-tions and cleaning may be performed by theoperator when the units are disconnected fromthe mains.

1.7 Safety notes for installation,maintenance and inspection

n Appropriate hazard prevention measures mustbe taken to prevent risks to people when per-forming installation, repair, maintenance orcleaning work on the units.

n The setup, connection and operation of theunits and its components must be undertakenin accordance with the usage and operatingconditions stipulated in this manual and complywith all applicable regional regulations.

n Local regulations and laws such as WaterEcology Act must be observed.

n The power supply should be adapted to therequirements of the units.

n Units may only be mounted at the points pro-vided for this purpose at the factory. The unitsmay only be secured or mounted on stablestructures, walls or floors.

n Mobile units must be set up securely on suit-able surfaces and in an upright position. Sta-tionary units must be permanently installed foroperation.

n The units and components should not be oper-ated in areas where there is a heightened riskof damage. Observe the minimum clearances.

n The units and components must be kept at anadequate distance from flammable, explosive,combustible, abrasive and dirty areas oratmospheres.

n Safety devices must not be altered orbypassed.

1.8 Unauthorised modificationand changes

Modifications or changes to units and componentsare not permitted and may cause malfunctions.Safety devices may not be modified or bypassed.Original replacement parts and accessoriesauthorised by the manufactured ensure safety. Theuse of other parts may invalidate liability forresulting consequences.

1.9 Intended useDepending on the model, the equipment and theadditional fittings with which it is equipped is onlyintended to be used as an air-conditioner for thepurpose of cooling or heating the air in anenclosed room.

Any different or additional use shall be classed asnon-intended use. The manufacturer/supplierassumes no liability for damages arising from suchuse. The user bears the sole risk in such cases.Intended use also includes working in accordancewith the operating and installation instructions andcomplying with the maintenance requirements.

Under no circumstances should the thresholdvalues specified in the technical data be exceeded.

1.10 WarrantyFor warranty claims to be considered, it is essentialthat the ordering party or its representative com-plete and return the "certificate of warranty" toREMKO GmbH & Co. KG at the time when theunits are purchased and commissioned.

The warranty conditions are detailed in the "Gen-eral business and delivery conditions". Further-more, only the parties to a contract can concludespecial agreements beyond these conditions. Inthis case, contact your contractual partner in thefirst instance.


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1.11 Transport and packagingThe devices are supplied in a sturdy shipping con-tainer. Please check the equipment immediatelyupon delivery and note any damage or missingparts on the delivery and inform the shipper andyour contractual partner. For later complaints cannot be guaranteed.

WARNING!

Plastic films and bags etc. are dangeroustoys for children!Why:

- Leave packaging material are not around.

- Packaging material may not be accessible tochildren!

1.12 Environmental protectionand recycling

Disposal of packagingAll products are packed for transport in environ-mentally friendly materials. Make a valuable contri-bution to reducing waste and sustaining raw mate-rials. Only dispose of packaging at approvedcollection points.

Disposal of equipment and componentsOnly recyclable materials are used in the manufac-ture of the devices and components. Help protectthe environment by ensuring that the devices orcomponents (for example batteries) are not dis-posed in household waste, but only in accordancewith local regulations and in an environmentallysafe manner, e.g. using certified firms and recy-cling specialists or at collection points.

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2 Technical Data2.1 Units data WKF / WKF-compact 70

Series WKF 70WKF-

compact70

Function Heating or Cooling

System Split-Air/Water

Heat pump manager Smart-Control

Domestic water storage tank, enamelled optional Ser. 300 l

Electric booster heating / rated output kW optional / 9,0

Domestic hot-water heating (changeover valve) optional Series

Connecting oil-/ gas boiler optional

Heating capacity min / max kW 1,2 - 6,0

Heating capacity / compressor frequency / COP for A12/W35 kW/Hz/COP 6,00/56/5,10

Heating capacity / compressor frequency / COP 1) for A7/W35 kW/Hz/COP 5,46/54/4,62


Heating capacity / compressor frequency / COP 1) for A-7/W35 kW/Hz/COP 4,50/81/2,80

Heating capacity / compressor frequency / COP 1) for A-15/W35 kW/ Hz/COP 4,70/88/2,50






Cooling capacity min. / max. kW 1,33- 5,30

Cooling capacity / compressor frequency / EER for A35/W7 kW/Hz/EER 4,90/49/2,80



Service limits, heating °C -20 - +35

Service limits, cooling °C +10 - +46

Supply-temperature, heating water °C 55

Min. Supply-temperature, cooling °C 7

Refr. / pre-charge quantity out. mod. -- / kg R 410A2) / 1,20

Refrigerant / additional quantityfor up to 5 m length of ordinary pipe g / m 50

Refrigerant connection Inches (mm) 3/8" (9,52) / 5/8" (15,9)

Max. refrigerant pipe length m 30

Max. refrigerant pipe height m 20


8

Series WKF 70WKF-

compact70

Power supply V / Hz 220-240 / 50

Max. current consumption A 15,0

Rated current consumption for A7/W35 A 5,19

Rated power consumption for A7/W35 kW 1,18

Rated power consumption for A2/W35 kW 1,32

Max. power consumption kW 3,50

Power factor A7/W35 (cosφ) -- 0,99

Fuse protection on-site (o. mod.) A / delax-action fuse 16

Rated water flow (acc. to EN 14511, at ∆t 5 K) m³/h 0,95

Pressure-loss at the condenser at nominal flow rate bar 0,095

Pressure-loss external kPa 80

Air-nominal flow rate outdoor module m³/h 2200

Max. operating pressure, water bar 3

Hydraulic connection, supply / return Zoll (mm) 1" 1/4(31,8)

Sound-power level in accordance withDIN EN 12102:2008-09 and ISO 9614-2 dB(A) 63,2

Sound-pressure level, LpA (out. mod.) 3 dB(A) 41,2

Dimensions, indoor module (h/w/d) mm500/800/

500

1928/800/

790

Dimensions, outdoor module (h/w/d) mm 638 / 880 / 310

Enclosure class outdoor module -- IP X4

Weight indoor module kg 50 248

Weight outdoor module kg 47,5

1) COP = coefficient of performance or performance number according to EN 145112) Contains greenhouse gas according to Kyoto protocol, GWP 19753) Distance 5m, VDE tested, A7/W55/65Hz, at half spherical propagation

Data provided without guarantee! We reserve the right to modify the dimensions and constructional designas part of the ongoing technical-development process.

9

2.2 Product data WKF / WKF-compact 70

Average condition 1)

Series WKF 70WKF-

compact70

Energy efficiency ratio, heating 35°C/55°C A++ / A++

Energy efficiency ratio, hot water XL A

Nominal heating power P rated kW 5,0 / 6,0

Room heating energy efficiency hs 35°C/55°C % 150 / 129

Contribution to seasonal room heating energy efficiencyof the REMKO Smart Control % 4

Yearly energy consumption QHE 35°C/55°C 4) 2808 / 3705

Hot water preparation energy efficiency hwH % 103

Sound power level LWA (outdoor module) dB(A) 63,2

Sound power level LWA (indoor module) dB(A) -

Warmer condition 2)

Series WKF 70WKF-

compact70

Energy efficiency ratio, heating 35°C/55°C A++ / A++





Colder condition 3)

Series WKF 70WKF-

compact70

Energy efficiency ratio, heating 35°C/55°C A+ / A+





1) Average condition = moderate temperature periods2) Warmer condition = warm temperature periods3) Colder condition = cold temperature periods4) The specified value is based on results from standard testing.The actual consumption depends on the use and location of the unit


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2.3 Units data WKF/WKF-compact 120/180

Series WKF 120WKF-

compact120

WKF 180WKF-

compact180


System Split-Air/Water

Heat pump manager Smart-Control

Enamelled DHW storage tank on-site ser. 300 l optional ser. 300 l

Electric booster heating / rated output kW optional / 9,0

Domestic hot-water heating(changeover valve)

optional series optional series

Connecting oil-/ gas boiler optional

Heating capacity min / max kW 2,5 - 12,5 3,1 - 17,7

Heating capacity / compressorfrequency / COP for A12/W35 kW/Hz/COP 10,96/61/4,82 16,02 / 56 / 5,33

Heating capacity / compressorfrequency / COP 1) for A7/W35 kW/Hz/COP 9,86/61/4,44 14,02 / 56 / 4,53


Heating capacity / compressorfrequency / COP 1) for A-7/W35 kW/Hz/COP 6,14/61/2,89 8,20 / 56 / 2,87

Heating capacity / compressorfrequency / COP 1) for A-15/W35 kW/ Hz/COP 4,82/61/2,39 6,36 / 56 / 2,40



Heating capacity / compressorfrequency / COP 1) for A-7/W55 kW/Hz/COP 4,63/61/1,79 6,99 / 56 / 1,94

Heating capacity / compressorfrequency / COP 1) for A10/W35 kW/Hz/COP 11,2/61/4,74 15,9/56/4,83

Cooling capacity min. / max. kW 3,3 - 9,1 2,8 - 15,0

Cooling capacity / compressorfrequency / EER for A35/W7 kW/Hz/EER 6,79/66/2,33 12,2 / 72 / 2,60



Service limits, heating °C -20 - +45

Service limits, cooling °C +15 - +45

Supply-temperature, heating water °C 55

Min. Supply-temperature, cooling °C 7

11

Series WKF 120WKF-

compact120

WKF 180WKF-

compact180

Refr. / pre-charge quantity out. mod. -- / kg R 410A2) / 2,00 R 410A2) / 2,85

Refrigerant / pre-charge quantityfor up to 10 m length of ordinary pipe g / m 50

Refrigerant connection Inch (mm) 3/8" (9,52) / 5/8" (15,9)

Max. refrigerant pipe length m 50 75

Max. refrigerant pipe height m 30

Power supply V / Hz 220-240 / 50 380-415 / 3~ / 50

Max. current consumption A 16,8 7,2 per phase

Rated current consumption for A7/W35 A 10,44 5,02 (per phase)

Rated power consumption for A7/W35 kW 2,22 3,09

Rated power consumption for A2/W35 kW 1,91 2,64

Max. power consumption kW 4,0 4,5

Power factor A7/W35 (cosφ) -- 0,97 0,95

Fuse protection on-site (o. mod.) A Träge 20 3 x 16 A

Rated water flow (acc. to EN 14511, at∆t 5 K) m³/h 1,70 2,4

Pressure-loss at the condenserat nominal flow rate bar 0,1

Pressure-loss external kPa 80

Air-nominal flow rate outdoor module m³/h 3700 5400


Hydraulic connection, supply / return Zoll (mm) 1 1/4" (31,8)

Sound-power level in accordance withDIN EN 12102:2008-09 and ISO 9614-2 dB(A) 67,9 68,3

Sound-pressure level, LpA (out. mod.) 3 dB(A) 42,2 42,4

Dimensions, indoor module (h/w/d) mm500/800/

500

1928/800/

790

500/800/

500

1928/800/

790

Dimensions, outdoor module (h/w/d) mm 998 / 940 / 330 1420 / 940 / 330

Enclosure class outdoor module -- IP 24

Weight indoor module kg 50 250 55 252

Weight outdoor module kg 74 100

1) COP = coefficient of performance or performance number according to EN 145112) Contains greenhouse gas according to Kyoto protocol, GWP 19753) Distance 5m, VDE tested, A7/W55/58Hz, at full spherical propagation

Data provided without guarantee! We reserve the right to modify the dimensions and constructional designas part of the ongoing technical-development process.


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2.4 Product data WKF/WKF-compact 120/180


Series WKF 120WKF-

compact120

WKF 180WKF-

compact180

Energy efficiency ratio, heating 35°C/55°C A+ / A+ A+ / A+

Energy efficiency ratio, hot water XL A A

Nominal heating power P rated kW 10,0 14,0

Room heating energy efficiency hs 35°C/55°C % 147 / 118 146 / 122

Contribution to seasonal room heating energyefficiency of the REMKO Smart Control % 4 4

Yearly energy consumption QHE 35°C/55°C 4) 5514 / 6610 7860 / 9098

Hot water preparation energy efficiency hwH % 102 107

Sound power level LWA (outdoor module) dB(A) 67,9 68,3

Sound power level LWA (indoor module) dB(A) - -

Warmer condition 2)

Series WKF 120WKF-

compact120

WKF 180WKF-

compact180

Energy efficiency ratio, heating 35°C/55°C A++ / A+ A+++ / A++





Colder condition 3)

Series WKF 120WKF-

compact120

WKF 180WKF-

compact180







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2.5 Unit data WKF 120/180 Duo

Series WKF 120 Duo WKF 180 Duo


System Split air/water

Heat pump manager Smart Control

Enamelled drinking water storage tank External

Auxiliary heater / rated output kW Optional / 9 kW

Domestic hot-water heating (changeover valve) Optional, external

Connection oil/gas-fired boiler External

Heating capacity min. / max. kW 2.5-25.0 3.1-35.4

Heating capac. / compr. frequency / COP for A12/W35 kW/Hz/COP 21.92/61/4.82 32.4/56/5.33

Heating capac. / compr. frequency / COP 1) for A7/W35 kW/Hz/COP 19.72/61/4.44 28.04/56/4.53







Heating capac. / compr. frequency / COP 1) for A10/W35 kW/Hz/COP 22,4/61/4,74 31,8/56/4,83

Cooling capacity min. / max. kW 3.30 -18.00 5.50 -32.00

Cooling capacity / compr. frequency / EER for A35/W7 kW/Hz/EER 13.58/66/2.33 24.40/72/2.60



Usable limits, heating °C -20 to +45

Service limits, cooling °C +15 to +45

Max. inlet temperature, heating water °C 55

Min inlet temperature, cooling °C 7

Refrigerant / basic capacity per outdoor unit -- / kg 410A / 2.00 410 A / 2.80

Refrigerant / pre-charge quantity for upto 10 m length of ordinary pipe g/m 50

Refrigerant connections Inches (mm) 3/8" (9.52) / 5/8" (15.9)

Refrigerant piping length, max. m 50 75

Refrigerant piping height, max. m 30

Power supply per outdoor unit V / Hz 220-240/50 380-415/50

Max. current consumption per outdoor unit A 16.8 7.20

Rated current consumption for A7/W35 (per phase) p/OU A 10.44 5.02

Rated power consumption for A7/W35 per outdoor unit kW 2.22 3.09


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Rated power consumption for A2/W35 per outdoor unit kW 1,91 2,64

Max. power consumption per outdoor unit kW 4.00 4.50

Power factor for A7/W35 (cosφ) per outdoor unit -- 0.97 0.95

Fuse protection provided by the customer(per outdoor unit)

A slow-acting 20 3 x 16 A

Nominal medium water flow rate(according to EN 14511, at ∆t 5 K) m³/h 2 x 1.70 2 x 2.4, total

4.8

Pressure-loss at the condenser at nom. medium flow rate bar 0.10

Pressure loss, external kPa 80

Airflow volume per outdoor unit m³/h 3500 5400


Hydraulic connection, inlet / return Inches 1 1/2" AG

Recommended pipe dimension, Cu pipe mm 42

Sound pressure level, LpA (outdoor unit) 3) dB(A) 42 42

Sound power level acc. to DIN EN 12102:2008-09and ISO 9614-2 per outdoor unit dB(A) 67.9 68.3

Dimensions, indoor unit (height/width/depth) mm 1000x800x500

Dimensions, outdoor unit (height/width/depth) mm 998/940/330 1420/940/330

Protection class outdoor unit -- IP 24

Weight, indoor unit kg 85 87

Weight per outdoor unit kg 74 98

1) COP = coefficient of performance (heating capacity figure) in accordance with EN 14511, VDE tested2) Contains greenhouse gas according to Kyoto protocol, GWP 19753) Distance 5m, VDE tested, A7/W55/58Hz, with spherical diffusion

Information provided without guarantee! We reserve the right to make technical changes within theframework of technical advancement.

15

2.6 Product data WKF 120/180 Duo



Energy efficiency ratio, heating 35°C/55°C A++ / A+ A++ / A++




Contribution to seasonal room heating energy effi-ciency of the REMKO Smart Control % 4 4

Yearly energy consumption QHE 35°C/55°C 4) 9282 / 11218 15524 / 17 719

Hot water preparation energy efficiency hwH % 102 107

Sound power level LWA (outdoor module) dB(A) 67,9 67,9

Sound power level LWA (indoor module) dB(A) - -

Warmer condition 2)


Energy efficiency ratio, heating 35°C/55°C A+++ / A++ A+++ / A+++





Colder condition 3)









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2.7 Unit dimensions outdoor module

A

B

C

D

E

Fig. 1: Unit dimensions outdoor module WKF / WKF-compact70/120/180

Dimensions in mm A B C D E

WKF/WKF-compact 70 880 638 364 660 340

WKF/WKF-compact 120 940 1010 330 620 360

WKF/WKF-compact 180 940 1430 330 620 350

WKF 120 Duo 940 1010 330 620 360

WKF 180 Duo 940 1430 330 620 350

2.8 Unit dimensions indoor modulesUnit dimensions indoor modules WKF 70/120/180

792 500

500 65

0

Fig. 2: Unit dimensions indoor modules series WKF 70/120/180 (all dimensions in mm)

17

Pipe-socket arrangement WKF 70/120/180

A B

700

413

155

70

92,

50

50

460

320

290

217,50

250

200

420

335

250

165

Fig. 3: Pipe-socket arrangement WKF 70/120/180 (all dimensions in mm)

A: Bivalent modeB: Monovalent mode

Designations of the pipe connections WKF 70/120/180

A B

2

1

43 5 6 7

810

9

2

1

43 5 6 7

810

9

Fig. 4: Designations on the pipe connections WKF 70/120/180

A: Bivalent modeB: Monovalent mode1: Circulation 1"2: Cold water inlet 1"3: Inlet heater 1 1/4"4: Warm water 1"

5: Return heater 1 1/4"6: Refrigerant liquid pipe 3/8"7: Refrigerant heat gas pipe 5/8"8: 2nd heat generator return 1" (Outlet heat pump)9: Safety assembly 1"10: 2nd heat generator inletf 1" (Inlet heat pump)


18

Unit dimensions indoor modules WKF/WKF-compact 70/120/180

2100

,10

1928

,10

792,43 792,43

Fig. 5: Unit dimensions indoor modules WKF-compact 70/120/180 (all dimensions in mm)

19

Pipe-socket arrangement WKF-compact 70/120/180

700

155

70

92,

50

50

460

320

290

217,5

250

200

420

335

250

165

470530

65

50

347,

07

470530

65

347,

07

700

A B

Fig. 6: Pipe-socket arrangement WKF-compact 70/120/180 (all dimensions in mm)

A: Bivalent mode B: Monovalent mode

Designations of the pipe connections WKF-compact 70/120/180

A B

2

1

43 5 6 7

810

9

11

2

1

43 5 6 7

810

9

11

Fig. 7: Designations of the pipe connections WKF-compact 70/120/180

A: Bivalent modeB: Monovalent mode1: Circulation 1"2: Cold water inlet 1"3: Inlet heater 1 1/4"4: Warm water 1"5: Return heater 1 1/4"

6: Refrigerant liquid pipe 3/8"7: Refrigerant heat gas pipe 5/8"8: 2nd heat generator return 1" (Outlet heat pump)9: Safety assembly 1"10: 2nd heat generator inlet 1" (Inlet heat pump)11: Connections solar 3/4"


20

Unit dimensions indoor modules WKF 120/180 Duo

510

980

117

5

792

Fig. 8: Unit dimensions indoor modules WKF 120/180 Duo (all dimensions in mm)

Arrangement of the pipe sockets and designations on the pipe connections WKF 120/180 Duo

A B

285

320

157 337

90 4

5

70 170

60

215

300

175

700

1 2

3

4 5

6

7

8

Fig. 9: Arrangement of the pipe sockets and designations on the pipe connections WKF 120/180 Duo(all dimensions in mm)

A: Pipe connection arrangement / B: Designationsof the pipe connections

1: Heat pump outlet, 1 1/2"2: Heat pump return, 1 1/2"3: Refrigerant heat gas pipe, Outdoor unit A 5/8"

4: Refrigerant liquid pipe, Outdoor unit B 3/8"5: Refrigerant liquid pipe, Outdoor unit A 3/8"6: Refrigerant heat gas pipe, Outdoor unit B 5/8"7: Cable feedthrough8: Safety assembly

21

2.9 Heat pump service limits in monovalent mode

-20°C; 22°C

-20°C; 43°C

-10; 55 35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vor

lauft

empe

ratu

r [°C

]

Außentemperatur [°C]

Einsatzgrenzen WKF 120

VT[ °

C]

[ ° C]AT

Fig. 10: Service limits and test points WKF/WKF-compact 70

AT: Outside temperature / VT: Inlet temperature

Outdoor temperature [°C] -20 -20 -10 20 35 35

Inlet temperature [°C] 22 43 55 55 55 22

NOTE:

The left temperature value in the diagram refers to the supply-temperature heating water and thelower refers the outdoor air temperature.

-20°C; 22°C

-20°C; 43°C

-10; 55 35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vor

lauft

empe

ratu

r [°C

]



VT[ °

C]

[ ° C]AT






22

-20°C; 22°C

-20°C; 42°C

-10; 55 35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vor

lauft

empe

ratu

r [°C

]


VT[ °

C]

[ ° C]AT





NOTE:

The left temperature value in the diagram refers to the supply-temperature heating water and thelower refers the outdoor air temperature.

-20°C; 22°C

-20°C; 43°C

-10; 55 35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vor

lauft

empe

ratu

r [°C

]



VT[ °

C]

[ ° C]AT

Fig. 13: Service limits and test points WKF 120 Duo




23

-20°C; 22°C

-20°C; 42°C

-10; 55 35; 55

35°C; 22°C

15°C

20°C

25°C

30°C

35°C

40°C

45°C

50°C

55°C

60°C

-30°C -20°C -10°C 0°C 10°C 20°C 30°C 40°C

Vor

lauft

empe

ratu

r [°C

]


VT[ °

C]

[ ° C]AT

Fig. 14: Service limits and test points WKF 180 Duo




2.10 Pump-characteristic curves, indoor module charging pump

0

5

10

15

20

25

30

35

40

45

50

0

20

40

60

80

100

120

140

160

20 40 60 80 100

[l/m

in]

[W]

[%]

21

3

A

B

Fig. 15: Circulation pump Grundfoss UPML 25-105 180 PWM - power range

1: Power consumption [W]2: Volume flow [l/mim]3: Activation [%]A: Characteristic curve volume flow [l/mim]B: Characteristic curve power consumption [W]

External control via analogical-in PWM-signal

Tolerances of each curve according to EN 1151-1:2006

Level Output [W] Current [A] Motor protection

min. 7 0,07 Rotor current-proof

max. 136 1,03 Rotor current-proof


24

2.11 Overall sound pressure levels for outdoor modulesOutdoor module WKF/WKF-compact 70

47,3 48,2 48,8

52,4

60,5

55,3

50,8 51,0 50,0 50,1 50,9

46,343,7

31,1

41,3 41,4

35,6 34,7 33,4

A-Gesamt:64,0 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A

)

Frequenz (Hz)

REMKO Wärmepumpe WP172Schallleistung LwA re 1pW A7 / W 45Typ: WKF85-AM

A7 / W 45

Fig. 16: Overall sound pressure level LP of REMKO outdoor module series: WKF/WKF-compact 70

Middle frequency [Hz] 25 31,50 40 50 63 80 100 125 160

LI [dBA] (25,6) (38,3) (30,8) (37,7) (35,1) (31,3) 38,2 39,1 39,7

LWo [dBA] (34,7) (47,4) (39,9) (46,9) (44,3) (40,4) 47,3 48,2 48,8

FPI [dB] -(14,7) -(8,2) -(8,8) -(5,2) -(3,5) 1(1,3) 0,6 2,0 4,7

Middle frequency [Hz] 200 250 315 400 500 630 800 1000 1250

LI [dBA] 43,3 54,3 46,1 41,6 41,9 40,8 41,0 41,8 37,2

LWo [dBA] 52,4 60,5 55,3 50,8 51,0 50,0 50,1 50,9 46,3

FPI [dB] 6,3 4,0 7,4 10,0 10,9 12,8 12,0 11,1 13,0


LI [dBA] 34,6 21,9 32,1 32,3 26,5 25,6 24,3 (21,3) (24,1)

LWo [dBA] 43,7 31,1 41,3 41,4 35,6 34,7 33,4 (30,4) (33,2)

FPI [dB] 14,7 27,2 13,9 11,7 13,0 10,6 9,2 (7,7) (4,5)

Determination of sound power conforms to accuracy class 2, the standard deviation of the o. a. A-valuedsound-power levels amounts to 1.5 dB.

LWo: Sound power level radiated by the outdoor unit

FPI: Correction value with regard to the environment

LI: Sound intensity

25

Outdoor module WKF/WKF-compact 120

dB80

30

40

50

60

70

25 63 125 250 500 1000 2000 4000 8000 A L Hz

Cursor:

1

2

NEUE GRAFIK !

49,9

54,350,5

54,9

62,7

55,7 55,9 54,657,4 57,1

59,0

54,352,3

49,947,2

44,841,7

36,133,3

A-Gesamt:67,9 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A

)

Frequenz (Hz)

REMKO Wärmepumpe WP171Schallleistung LwA re 1pW A7 / W 55Typ: WKF120-AM A7 / W 55



LI [dBA] (27,6) (40,9) (38,3) (31,4) (45,3) (33,5) 40,0 44,4 40,6

LWo [dBA] (37,5) (50,8) (48,2) (41,3) (55,2) (43,4) 49,9 54,3 50,5

FPI [dB] -(14,3) -(8,3) -(8,5) -(6,6) -(3,6) -(2,0) -0,2 0,7 2,6


LI [dBA] 45,0 52,8 45,8 46,0 44,7 47,5 47,2 49,1 44,4

LWo [dBA] 54,9 62,7 55,7 55,9 54,6 57,4 57,1 59,0 54,3

FPI [dB] 4,3 4,3 5,6 6,7 7,1 7,1 11,2 6,0 6,0


LI [dBA] 42,4 40,0 37,3 34,9 31,8 26,2 23,4 (21,6) (16,2)

LWo [dBA] 52,3 49,9 47,2 44,8 41,7 36,1 33,3 (31,5) (26,1)

FPI [dB] 5,7 5,5 5,5 5,4 5,1 6,0 6,3 (5,5) (5,3)




LI: Sound intensity


26

Outdoor module WKF/WKF-compact 180

60,4

56,3

61,1

54,8 55,1 56,4 55,3 55,4 56,9 57,8 58,9

52,449,2

46,043,6

40,937,0

32,1

28,0

A-Gesamt:68,3 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A

)

Frequenz (Hz)


A7 / W 55



LI [dBA] (31,4) (41,6) (32,8) (40,8) (37,3) (37,4) 49,8 45,8 50,5

LWo [dBA] (41,9) (52,1) (43,4) (51,3) (47,9) (47,9) 60,4 56,3 61,1

FPI [dB] -(11,6) -(9,2) -(7,7) -(5,4) -(3,2) -(2,0) 0,0 1,1 2,1


LI [dBA] 44,3 44,6 45,8 44,8 44,9 46,4 47,2 48,4 41,9

LWo [dBA] 54,8 55,1 56,4 55,3 55,4 56,9 57,8 58,9 52,4

FPI [dB] 6,1 6,4 8,7 9,4 9,6 9,2 11,6 8,4 10,0


LI [dBA] 38,7 35,5 33,1 30,4 26,5 21,6 17,5 (18,1) (8,8)

LWo [dBA] 49,2 46,0 43,6 40,9 37,0 32,1 28,0 (28,6) (19,3)

FPI [dB] 11,4 13,9 13,2 13,0 13,5 14,7 15,2 (11,1) (14,8)




LI: Sound intensity

27

Outdoor module WKF 120 Duo

dB80

30

40

50

60

70

25 63 125 250 500 1000 2000 4000 8000 A L Hz

Cursor:

1

2

NEUE GRAFIK !

49,9

54,350,5

54,9

62,7

55,7 55,9 54,657,4 57,1

59,0

54,352,3

49,947,2

44,841,7

36,133,3

A-Gesamt:67,9 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A

)

Frequenz (Hz)

REMKO Wärmepumpe WP171Schallleistung LwA re 1pW A7 / W 55Typ: WKF120-AM A7 / W 55

Fig. 19: Overall sound pressure level LP of REMKO outdoor module series: WKF 120 Duo


LI [dBA] (27,6) (40,9) (38,3) (31,4) (45,3) (33,5) 40,0 44,4 40,6

LWo [dBA] (37,5) (50,8) (48,2) (41,3) (55,2) (43,4) 49,9 54,3 50,5

FPI [dB] -(14,3) -(8,3) -(8,5) -(6,6) -(3,6) -(2,0) -0,2 0,7 2,6


LI [dBA] 45,0 52,8 45,8 46,0 44,7 47,5 47,2 49,1 44,4

LWo [dBA] 54,9 62,7 55,7 55,9 54,6 57,4 57,1 59,0 54,3

FPI [dB] 4,3 4,3 5,6 6,7 7,1 7,1 11,2 6,0 6,0


LI [dBA] 42,4 40,0 37,3 34,9 31,8 26,2 23,4 (21,6) (16,2)

LWo [dBA] 52,3 49,9 47,2 44,8 41,7 36,1 33,3 (31,5) (26,1)

FPI [dB] 5,7 5,5 5,5 5,4 5,1 6,0 6,3 (5,5) (5,3)




LI: Sound intensity


28

Outdoor module WKF 180 Duo

60,4

56,3

61,1

54,8 55,1 56,4 55,3 55,4 56,9 57,8 58,9

52,449,2

46,043,6

40,937,0

32,1

28,0

A-Gesamt:68,3 dB(A)

0,0

10,0

20,0

30,0

40,0

50,0

60,0

70,0

80,0

100 160 250 400 630 1000 1600 2500 4000 6300

dB(A

)

Frequenz (Hz)


A7 / W 55

Fig. 20: Overall sound pressure level LP of REMKO outdoor module series: WKF 180 Duo


LI [dBA] (31,4) (41,6) (32,8) (40,8) (37,3) (37,4) 49,8 45,8 50,5

LWo [dBA] (41,9) (52,1) (43,4) (51,3) (47,9) (47,9) 60,4 56,3 61,1

FPI [dB] -(11,6) -(9,2) -(7,7) -(5,4) -(3,2) -(2,0) 0,0 1,1 2,1


LI [dBA] 44,3 44,6 45,8 44,8 44,9 46,4 47,2 48,4 41,9

LWo [dBA] 54,8 55,1 56,4 55,3 55,4 56,9 57,8 58,9 52,4

FPI [dB] 6,1 6,4 8,7 9,4 9,6 9,2 11,6 8,4 10,0


LI [dBA] 38,7 35,5 33,1 30,4 26,5 21,6 17,5 (18,1) (8,8)

LWo [dBA] 49,2 46,0 43,6 40,9 37,0 32,1 28,0 (28,6) (19,3)

FPI [dB] 11,4 13,9 13,2 13,0 13,5 14,7 15,2 (11,1) (14,8)




LI: Sound intensity

29

2.12 Characteristic curvesHeating capacity WKF/WKF-compact 70 at an inlet temperature 35 °C

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

[°C]

[kW

]

AT

HL

NF 54 Hzn-max.

n-min.

Fig. 21: Heating capacity WKF/WKF-compact 70 at an inlet temperature 35 °C

A: Outdoor temperatureB: Heating capacity

C: Rated frequency

Heating capacity WKF/WKF-compact 70 at an inlet temperature 45 °C

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

[°C]

[kW

]

AT

HL

NF 54 Hzn-max.

n-min.



C: Rated frequency


30


0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

[°C]

[kW

]

AT

HL

NF 54 Hzn-max.

n-min.



C: Rated frequency

COP WKF/WKF-compact 70 at an inlet temperature 35 °C, 45 °C and 55 °C

0

1

2

3

4

5

6

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

[°C]AT

CO

P [-]

VL 35° C

VL 45° C

VL 55° C

Fig. 24: COP WKF/WKF-compact 70 at an inlet temperature 35 °C, 45 °C and 55 °C

A: Outdoor temperature D: Inlet temperature

31


[°C]

[kW

]

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

A

B

C

n-max

n-min



C: Rated frequency


[°C]

[kW

]

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

A

BC

n-max

n-min



C: Rated frequency


32


[°C]

[kW

]

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

54 Hz

A

BC

n-max

n-min



C: Rated frequency


[°C]

CO

P [-]

0

1

2

3

4

5

6

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

35° C

45° C

55° C

A

D

D

D



33


[°C]

[kW

]

0

2

4

6

8

10

12

14

16

18

20

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

A

B

C

n-max

n-min



C: Rated frequency


[°C]

[kW

]

0

2

4

6

8

10

12

14

16

18

20

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

A

BC

n-max

n-min



C: Rated frequency


34


[°C]

[kW

]

0

2

4

6

8

10

12

14

16

18

20

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

n-max. 88 Hz

n-max. 73 Hz

n-max. 58 Hz

A

BCn-max

n-min



C: Rated frequency


[°C]

CO

P [-]

0

1

2

3

4

5

6

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

35° C

45° C

55° C

A

D

D

D



35

Heating capacity WKF 120 Duo at an inlet temperature 35 °C

[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BC

n-max

Fig. 33: Heating capacity WKF 120 Duo at an inlet temperature 35 °C


C: Rated frequency


[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BC

n-max



C: Rated frequency


36


[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BCn-max



C: Rated frequency / n-max = max. frequency

COP WKF 120 Duo at an inlet temperature 35 °C, 45 °C and 55 °C

[°C]

CO

P [-]

0

1

2

3

4

5

6

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

35° C

45° C

55° C

A

D

D

D

Fig. 36: COP WKF 120 Duo at an inlet temperature 35 °C, 45 °C and 55 °C


37


[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

45,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BC

n-max





[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BC

n-max





38


[°C]

[kW

]

0,0

5,0

10,0

15,0

20,0

25,0

30,0

35,0

40,0

-16 -14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20

A

BC

n-max


A: AußentemperaturB: Heizleistung

C: Nennfrequenz / n-max: max. Frequenz

COP WKF 180 Duo at an inlet temperature 35 °C, 45 °C and 55 °C

[°C]

CO

P [-]

0

1

2

3

4

5

6

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

35° C

45° C

55° C

A

D

D

D

Fig. 40: COP WKF 180 Duo at an inlet temperature 35 °C, 45 °C and 55 °C


39

Loss in heating and cooling outputDepending on the length of the refrigerant piping and the difference in elevation between the indoor and out-door units, there may be a loss in heating or cooling output. These can be calculated using the following dia-grams.

Heating capacity losses for WKF/WKF-compact 70

2530

1520

10

50

-5

-10-15-20

-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 99% 97%

95%

95%

95%

95%

92%

92%

92%+30 m

0 m

-30 m

Fig. 41: Heating capacity losses for WKF/WKF-compact 70

A: Difference in elevation B: Length of refrigerant piping

Cooling capacity losses for WKF/WKF-compact 70

2530

1520

10

50

-5

-10-15-20

-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 98% 95%

95%

90%

90%

90%

87%

87%

87%+30 m

0 m

-30 m

Fig. 42: Cooling capacity losses for WKF/WKF-compact 70

A: Difference in elevationB: Length of refrigerant piping


40


2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 95% 90%

95%

+30 m

0 m

-30 m

86%




2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 98% 95%

95%

89%

+30 m

0 m

-30 m

92%



41


2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 90%

+30 m

0 m

-30 m

80%

55 60 65 70 75

85%




2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 90% 83%

+30 m

0 m

-30 m

80%

55 60 65 70 75

86%




42

Heating capacity losses for WKF 120 Duo

2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 95% 90%

95%

+30 m

0 m

-30 m

86%

Fig. 47: Heating capacity losses for WKF 120 Duo


Cooling capacity losses for WKF 120 Duo

2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 98% 95%

95%

89%

+30 m

0 m

-30 m

92%

Fig. 48: Cooling capacity losses for WKF 120 Duo


43

Heating capacity losses for WKF 180 Duo

2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 90%

+30 m

0 m

-30 m

80%

55 60 65 70 75

85%

Fig. 49: Heating capacity losses for WKF 180 Duo


Cooling capacity losses for WKF 180 Duo

2530

1520

1050

-5-10-15-20-25-30

0 5 10 15 20 25 30 35 40 45 50

A

B

[m]

[m]

100% 90% 83%

+30 m

0 m

-30 m

80%

55 60 65 70 75

86%

Fig. 50: Cooling capacity losses for WKF 180 Duo



44

3 Structure and function3.1 The heat pump in generalArguments for Remkon Low heating costs in comparison to oil and gas.n Heat pumps represent a contribution to environmental protection.n Lower CO2 emissions in comparison to oil and gas heating.n All models are able to cool as well as heat.n Low noise-level of the outdoor unit.n Flexible installation due to split system design.n Negligible maintenance costs.

75%* of the heatcomes from the air, free of charge

75%freesolar energy from the air

*

25% electrical drive energy* Heating

Fig. 51: Free heat

* The relationship can vary depending on outdoor temperature and operating conditions.

Economical and environmentally-consciousheatingThe burning of fossil-based energy sources inorder to generate power creates severe conse-quences for the environment. A high percentage offossil fuels is also problematic due to the limitedresources of oil and gas and the price increasesresulting from this. For this reason, many peopletoday are thinking both economically and environ-mentally-consciously in terms of heating. Theapplication of heat pump technology enables bothof these concepts to be combined. It makes use ofthe energy which is permanently available in theair, water and soil and converts it into usable

heating energy by means of inputting electricalenergy. Yet in order to generate heat equivalent to4kWh, only 1kWh of electricity is required. The restis made available free-of-charge by the environ-ment.

45

Heat sourceThere are essentially three heat sources that heatpumps can derive energy from. air, soil andgroundwater. Air heat pumps have the advantagethat air as a source heat is available everywhere inunlimited quantities that can be used free ofcharge. A disadvantage is that the outside air is atits coldest when the heat requirement is greatest.

Brine heat pumps extract energy from the soil. Thisis undertaken in serpentine pipe networks whichare laid approx. 1m deep or placed by means ofdrilling. The disadvantage is the large spacerequirements for the serpentine pipe networks orthe high cost of drilling. A long-term cooling ofthe soil is also a possibility.

Water heat pumps require two wells in order toobtain heat from the groundwater, one supply welland one dry well. The development of this sourceis not possible everywhere, it is expensive andrequires planning permission.

Function of the heat pumpA heat pump is a device which makes use of aworking medium to absorb ambient heat under lowtemperatures and transports this heat to a placewhere it can be of use for heating purposes. Heatpumps work according to the same principles as arefrigerator. The difference is that heat, the by-product of the refrigerator, is the goal of the heatpump.

The main components of the cooling circuit consistof an evaporator, a compressor, a condenser andan expansion valve. In a finned evaporator,the refrigerant evaporates both because of lowerpressure and because of lower heat-source tem-peratures through absorption of energy from theenvironment. In the compressor, the refrigerant isbrought to a higher pressure and temperature bythe application of electrical energy. Next, the hotrefrigerant gas reaches the condenser, a plateheat-exchanger. Here the hot gas condenses,transferring heat to the heating system. The lique-fied refrigerant then expands and cools in a flowregulator, the expansion valve. Then the refrig-erant flows into the evaporator once more and thecycle is complete.

For control, a Smart-Control is included whichensures the independent operation of all safetydevices. The water-circulation system of the SeriesWKF consists of a circulation pump, plate heat-exchangers, dirt traps, safety valve, a manometer,fill- and drain valves, an automatic air-bleeder andflow switch. The WKF-compact series has, in addi-tion, a 3-way changeover valve and a domestic hotwater storage.

Wall- and floor consoles, condensate pans, con-densate tray with heating, a 3-way changeovervalve, a overflow protection valve and other sen-sors are available as accessories.

3

1

A B

C

2 4D

Fig. 52: Functional diagram heating inverter heat pump

A: Outdoor areaB: Indoor areaC: Heating pump outdoor moduleD: Heating pump indoor module

1: Condensing2: Evaporation3: Decompression4: Liquefying


46

Heat pump modesHeat pumps can work in various operating modes.

MonovalentThe heat pump the only source of heat for abuilding all year round. This mode is particularlysuitable for heating plants with low supply-watertemperatures and is primarily used in combinationwith brine/water and water/water heat pumps.

Single energy sourceThe heat pump has an E-heater to handle peakloads. The heat pump covers the majority of therequired heating power. Occasionally, when it isextremely cold outside, an electrical booster-heating system switches on as required in order tosupport the heat pump.

Bivalent parallelThe heat pump provides the entire heating energydown to a predetermined outdoor temperature. Ifthe temperature drops below this value, a secondheat source switches on to support the heat pump.There is a distinction to be made here betweenalternative operation with oil- or gas heat andregenerative operations with solar energy orwood-fired heating. This mode is possible for allheating systems.

LayoutA precise calculation of the building's heating loadaccording to EN 12831 is required for the designand dimensioning of a heating system. However,approximate requirements can be determinedbased on the year of construction and the type ofbuilding. The table shows the approximate specificheating loads for a number of building types. Therequired heating system output can be calculatedby multiplying the area to be heated with the givenvalues

For a precise calculation, various factors must beconsidered. The transmission-heat requirement,the infiltration heat-loss and an allowance for waterheating comprise the total heating output which theheating system must provide.

The total area of the floor surfaces, exterior wallwindows, doors and roofing is required in order todetermine the transmission heat requirement. Inaddition, information about the materials used inthe building is required, as these lead to extremely

varied thermal transmission coefficients (the socalled K value). Also required are the room temper-ature and the standard outdoor temperature, thatis, the lowest outdoor-temperature on average thatwill occur during the year. The equation for calcu-lating the transmission-heat requirement is Q=A xU x (tR-tA) and must be calculated separately for allroom-enclosure surfaces.

The infiltration heat requirement takes into consid-eration how often the heated room air isexchanged for cold external air. The room volume(V), the air exchange frequency (n) and the spe-cific heat capacity (c) of the air is also required inaddition to the room temperature and average lowtemperature. The equation is: Q=V x n x c (tR-tA).An approximate allowance for heating water - perperson according to VDI 2067: 0.2 kW

ExampleA residential home comprised of 150 m² living-space and a heat requirement of 80 W/m² hasbeen selected for the example design. A total offive persons live in the house. The heat loadamount to 11.5 kW. Adding a drinking water allow-ance of 0.2 kW results in a required heat capacityof 12.5 kW. Depending on the power company, anadditional charge must then be made in order tofactor in the service time-out period. The rating anddetermination of the heat pump's balance-pointtemperature derives graphically from the heatpump's temperature-specification heat-output dia-gram. (In the example, 35 °C for a floor heating-system). Next, the heat load for the standard out-door temperature (the lowest temperature of theyear locally) and the heat threshold are marked onthe graph. The outdoor-temperature-dependentheating requirement, simplified here as a straight-line relationship between heat-load and the start ofthe heating season, is recorded in the graph ofheat-load curves. The intersection of the twostraight lines with the rated heat-load curve isplotted on the X axis, where the balance-point tem-perature is read. (in the example, ca.-3°C) Theleast load of the 2nd heat source is the differencebetween heat load and the heat pump's maximumheat output on these days. (In the example, thecapacity necessary to cover peak loads is ca. 3kW.)

47

Building type Specific heating output in W/m2

Passive energy house 10

Low-energy house built in 2002 40

According to energy conservation order regarding heat insulation1995 60

Modern building constructed around 1984 80

Partially-renovated old building constructed pre-1977 100

Non-renovated old building constructed pre-1977 200

0

2

4

6

8

10

12

14

16

18

20

-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Heat load acc. DIN EN 12831

n.max

n-min

Min. performance2. heat source

n.max

Hea

ting

capa

city

[kW

]

Heating capacity at a supply temperature of 35°C

Rated frequency 57 Hz

Heat load

Heat load plus warm-water requirements and service time-out period

Heating threshold for old building according to VDI 4650

Outdoor temperature [°C]Bivalent temperatureStandard outdoor temperature

Fig. 53: Heating capacity diagramm of the heat pump WKF/WKF-compact 180

Characteristics of REMKO inverter heat pumps

Outdoor air as a heat sourceAn air/water heat pump absorbs energy from theoutdoor air as its heat source and transmits this tothe heating system. They have the followingadvantages over brine/water and water/water heatpump systems:

n Can be used everywhere Air is available every-where in unlimited quantities. For example, nowells are required.

n No excavation required. No large areas arerequired for soil collectors.

n Economical. Expensive drilling is not required.n Excellent value for money and simple installa-

tion.n Particularly suitable for low-energy houses with

low inlet temperatures.n Ideal for bivalent operation, in order to save

energy.


48

Split AC unitThe REMKO inverter heat pump is a so called splitAC unit. This means that it consists of an outdoorunit and an indoor unit, both of which are con-nected via refrigerant-carrying copper pipes. Thusthere are no water-carrying pipes laid from theindoors to outdoors which need to be made frostproof. The outdoor unit contains only the con-denser, the evaporator and the expansion valve.This means that the outdoor unit is considerablysmaller. The indoor module contains the system'scondenser and the connections for the heating net-work.

REMKO inverter technology

The heat pump's condenser is equipped with arequirement-dependent speed control system. Thepower control on conventional heat pumps pro-vides only two states, either ON (full output) orOFF (no output). The heat pump turns on below a

specified temperature and turns off when this tem-perature is reached. This kind of heat regulation isvery inefficient. Heat regulation in the Remkoinverter heat pump is modulated to the actualneed. The electronics system has an integratedfrequency-converter which serves to modify thecondenser speed and the speed of the blower asrequired. The condenser works at a higher speedwhen under full load than under partial load. Thelower speeds ensure a longer operational lifetimefor the components, improved coefficient of per-formance and lower noise. Lower speeds alsoresult in lower energy consumption (electricity) andlonger service life. I.e.: inverter heat-pumps will runpractically throughout the heating season. In all,the highest efficiency possible.

1/3 When it is switched on, the inverter only requires one-third of the time of conventional systems

Time

Minimal temperature fluctuationsmean energy savings

ConventionalInverter

Tem

pera

ture

Fig. 54: Modern inverter technology

49

Thanks to innovative inverter technology, thisheat pump will almost always operate byadapting its heating capacity to the actualrequirements of the heating season, and will infact turn itself off when heat is no longerneeded. The same applies in the oppositedirection with cooling.

Defrost by circulation reversalAt temperatures below about +5°C, humidityfreezes in the evaporator (outdoor module) and anice layer can form which reduces heat transferfrom the air to the refrigerant and to the air stream.This layer of ice must be removed. A four-wayvalve serves to reverse the refrigerant circuit, sothat the hot gas from the compressor flows throughthe original evaporator and the ice that has formedthere can melt. The defrost process is not initiatedafter a predetermined time; rather it is carried outas required in order to save energy.

Cooling modeBecause of circuit reversal, cooling is also pos-sible. In cooling mode, the components of therefrigeration circuit are used to produce cold waterwith which heat can be extracted from a building.This can be accomplished with dynamic cooling orpassive cooling.

Under dynamic cooling the refrigerating capacityis actively transferred to the indoor air. This isundertaken by means of water-based REMKO fanconvectors. In doing so, it is desirable that the inlettemperatures are under the dewpoint, in order totransfer a higher refrigerating capacity and todehumidify the indoor air.

Passive cooling refers to the absorption of heatvia cooled floors, walls or ceiling surfaces. In doingso, water-carrying pipes make the structural sec-tions into thermically effective heat exchangers. Inorder to achieve this, the refrigerant temperaturehas to lie above the dew point, in order to avoid theformation of condensation. Dewpoint monitoring isrequired for this purpose.

We recommend dynamic cooling with fan convec-tors, in order to achieve increased thermal per-formance and in order to dehumidify the air onmuggy summer days. The advantage here is thatdewpoint monitoring is not required.

The comfort zone in the illustration below showswhich values for temperature and humidity areconsidered comfortable for people. This rangeshould ideally be met when heating or air-condi-tioning buildings.

10 12 14 16 18 20 22 24 26 28 30

uncomfortablyhumid

comfortable

still comfortable

uncomfortablydry

Rel

ativ

e hu

mid

ity in

%

Room air temperature in °C

Fig. 55: Comfort zone


50

3.2 WKF seriesWe offer two different indoor-unit designs. Thewall-mounted WKF series is equipped with a circu-lation pump and a safety module on the water side.Furthermore, an electrical auxillary heater can beincorporated as an option. It may be dispensedwith an external buffer tank when the heat pumpacting as the sole heat source. Should a secondheat source may be used, a buffer tank is needed.The WKF series was constructed for the addition ofseveral heat sources (bivalent installations or sys-tems with solar-heating equipment).

External buffer tank is always required, its sizedepending on the type and the power of thesecond heat source. On the one hand, the buffertank prevents short run-times for the heat pumpand on the other hand, that sufficient defrostingenergy is available.

3.3 WKF-compact seriesIn addition, the indoor module of the WKF-compactseries is fitted with an enamelled 300 L domesticwater storage. An auxiliary electric heater 9 kW isavailable optionally. As a result, the WKF-compactseries is the ideal equipment when the heat pumpis intended as the sole heat source (single energy-source operation).

Single energy-source operation by REMKO Smart-Serv or bivalent operation by REMKO Smart-BVTis also to realize. All connections are to be installedon top of the device.

51

4 Installation instructions4.1 System layout WKF/WKF-compact 70

IB

AB

IM1

NAM

KA1

STL

KML

NIM

NZ1

VWW

GRLVHZ

AM1

VEN

STL

KML

IM2

NIM

NZ2

KA2

VRH

NAM

AM2

VEN

KA1

Fig. 56: System layout WKF/WKF-compact 70

AB: Outdoor areaIB: Indoor areaAM1,2: Outdoor module WKF-compact 70, WKF 70IM1,2: Indoor module WKF-compact 70, WKF 70GRL: Common return pipe (DN 25)KA1: Condensate drain OM (must be designed to

be frost proof!)KA2: Condensate drain IMKML: Refrigerant lines 3/8" and 5/8“NAM: Mains supply OM = 230V / 1~ / 50Hz

16 A (e.g. 3x1,5 mm2)

NIM: Mains supply IM = 230V / 1~ / 50Hz10A (e.g. 3x1,5 mm2)

NZ1: Mains cable electric auxiliary heater (e.g.5x2,5 mm2)

NZ2: Mains cable electric auxiliary heater(optional), (e.g. 5x2,5 mm2)

STL: Control cable (e.g. 2x1mm2)VEN: FanVHZ: Inlet for heating (DN 32)VRH: Hot-water inlet and return pipes (DN 32)VWW: Inlet pipe for hot-water storage (DN 32)


52

4.2 System layout WKF/WKF-compact 120

IB

AB

IM1

NAM

KA1

STL

KML

NIM

NZ1

VWW

GRLVHZ

AM1

VEN

STL

KML

IM2

NIM

NZ2

KA2

VRH

NAM

AM2

VEN

KA1


AB: Outdoor areaIB: Indoor areaAM1,2: Outdoor module WKF-compact 120, WKF

120IM1,2: Indoor module WKF-compact 120, WKF 120GRL: Common return pipe (DN 25)KA1: Condensate drain OM (must be designed to


20 A (e.g. 3x2,5 mm2)




STL: Control cable (e.g. 2x1mm2)VEN: FanVHZ: Inlet for heating (DN 32)VRH: Hot-water inlet and return pipes (DN 32)VWW: Inlet pipe for hot-water tank (DN 32)

53

4.3 System layout WKF/WKF-compact 180

IB

AB

IM1

NAM

VEN

KA1

STL

KML

NIM

NZ1

VWW

GRLVHZ

AM1

VEN

STL

KML

IM2

NIM

NZ2

KA2

VRH

NAM

VEN

AM2

VEN

KA1


AB: Outdoor areaIB: Indoor areaAM1,2: Outdoor module WKF-compact 180, WKF

180IM1,2: Indoor module WKF-compact 180, WKF 180GRL: Common return pipe (DN 25)KA1: Condensate drain OM (must be designed to


3x16 A (e.g. 5x1,5 mm2)




STL: Control cable (e.g. 2x1mm2)VEN: FanVHZ: Inlet for heating (DN 32)VRH: Hot-water inlet and return pipes (DN 32)VWW: Inlet pipe for hot-water tank (DN 32)


54

4.4 System layout WKF 120 Duo

IB

AB

NAM

KA1

STL

KML

AM1

VEN

STL

KML

IM

NIM

NZH

KA2

VHZ

AM2

VEN

KA1

NAM

GRL

Fig. 59: System layout WKF 120 Duo

AB: Outdoor areaIB: Indoor areaAM1,2: Outdoor module WKF 120 DuoIM: Indoor module WKF 120 DuoGRL: Common return pipeKA1: Condensate drain, OM (must be designed to

be frost proof!)KA2: Condensate drain, IMKML: Refrigerant piping 3/8" and 5/8"

NAM: Power supply, OM = 230V / 1~ / 50Hz20A (e.g. 3x2.5 mm2)

NIM: Power supply, IM = 230V / 1~ / 50Hz16A (e.g. 3x1.5 mm2)

NZH: Power supply for auxiliary heater (optional),(e.g. 5x2.5 mm2)

STL: Control line (e.g. 2x1 mm2)VEN: FanVHZ: Inlet for heating

55

4.5 System layout WKF 180 Duo

IB

AB

STL

KML

NAM

KA1

AM1

VEN

AM2

VEN

KA1

NAM

VEN VEN

STL

KML

IM

NIM

NZH

KA2

VHZGRL

Fig. 60: System layout WKF 180 Duo

AB: Outdoor areaIB: Indoor areaAM1,2: Outdoor module WKF 180 DuoIM: Indoor module WKF 180 DuoGRL: Common return pipeKA1: Condensate drain, OM (must be designed to

be frost proof!)KA2: Condensate drain, IMKML: Refrigerant piping 3/8" and 5/8"

NAM: Power supply, OM = 400V / 3~ / 50Hz3x16A (e.g. 5x1.5 mm2)

NIM: Power supply, IM = 230V / 1~ / 50Hz16A (e.g. 3x1.5 mm2)

NZH: Power supply for auxiliary heater(e.g. 5x2.5 mm2)

STL: Control line (e.g. 2x1 mm2)VEN: FanVHZ: Inlet for heating


56

The indoor and outdoor units must be connected torefrigerant piping with dimensions (external diam-eter) 3/8" (=9.52 mm) and 5/8" (=15.88 mm). At leasta two-wire control line must be routed between themodules. Both the indoor and outdoor units requirea separate power supply.

WARNING!

All electric lines are in accordance VDE regula-tions to dimension and to lay.

4.6 General installation instruc-tions

n These instructions are to be observed wheninstalling the entire system.

n The device should be delivered as near aspossible to the site of installation in its originalpackaging in order to avoid transport damage.

n The device is to be checked for visible signs oftransport damage. Possible defects must bereported immediately to contract partners andthe forwarding agent.

n Suitable sites for installation are to be selectedwith regard to machinery noise and the set-upprocess.

n The shut-off valves for the refrigerant lines mayonly be opened immediately before commis-sioning of the system.

n The outdoor units are pre-filled with refrigerantup to a distance of 10 meters from the interiorcomponent. If the basic length of the refrigerantline exceeds 10 metres, add refrigerant.

n Establish all electrical connections in accord-ance with the relevant DIN and VDE standards.

n The electrical power cables must be fastenedto the electrical terminals in the proper manner.Otherwise there is a risk of fire.

n See that neither refrigerant or pipes that carrywater pass through living- or sleeping areas.

DANGER!

The installation of refrigerant equipment maybe undertaken only by trained specialist per-sonnel!

NOTICE!

Open refrigerant pipes must be protectedagainst the introduction of moisture by meansof suitable caps or adhesive strips Refrigerantpipes may not be kinked or compressed.Refrigerant pipes may only be cut to lengthwith a suitable pipe cutter (use no hacksaws orthe like).

DANGER!

All electrical installation work must be done byan electrician.

NOTICE!

Open refrigerant pipes must be protectedagainst the introduction of moisture by meansof suitable caps or adhesive strips Refrigerantpipes may not be kinked or compressed.Refrigerant pipes may only be cut to lengthwith a suitable pipe cutter (use no hacksaws orthe like).

DANGER!

All electrical installation work must be done byan electrician.

Wall breakthroughsn A wall opening of at least 70 mm diameter and

10 mm slope from the inside to the outsidemust be created.

n To prevent damage, the interior of the wallopening should be padded or, for example,lined with PVC pipe (see figure).

n After installation has been completed, use asuitable sealing compound to close off the wallbreakthrough under observation of fire protec-tion regulations (responsibility of customer).

57

2

1

4

3

Fig. 61: Wall breakthroughs

1: Liquid line2: Control cable3: Supply4: Hot gas line

4.7 Installation, mountingindoor module

Indoor module WKF seriesn The wall bracket is to be attached to the wall

with the fasteners supplied and the indoormodule hooked onto it.

n The wall must possess sufficient load-bearingcapacity for the weight of the indoor module.

n Ensure that the wall bracket is installed level.n The indoor module can be aligned precisely by

means of the adjustment screws on the back ofthe housing.

n The indoor module is to be mounted in such away that all of the sides have sufficient spacefor purposes of installation and maintenance. Itis equally important that there is sufficientspace above the device for installing the safetyassembly.

Fig. 62: Wall mounting WKF

Indoor module WKF-compact seriesn The indoor module must be installed on a firm,

level surface.n The surface must possess sufficient load-

bearing capacity for the weight of the indoormodule.

n The height-adjustable feet can be used to levelthe indoor module precisely .

n The indoor module is to be mounted in such away that all of the sides have sufficient spacefor purposes of installation and maintenance. Itis equally important that there is sufficientspace above the device for installing the pipesand the safety assembly.

Fig. 63: Floor mounting WKF-compact

WARNING!

Only fasteners suitable for the given applica-tion may be used.


58

Minimum distances for the indoor modules

A B

2

1

4

3

1

2

3

Fig. 64: Minimum distances for the indoor modules

A: WKF B: WKF-compact

Value in mm 1 2 3 4

WKF 500 300 300 150

WKF-compact 500 300 300 ---

59

4.8 Installation, mountingoutdoor module

Outdoor module installation locationn The device may be attached only to a load-

bearing structure or wall. Ensure that the out-door module is installed only vertically. Theinstallation site should be well ventilated.

n To minimise noise, install floor consoles withvibration dampers and a considerable distancefrom acoustically-reflective walls to minimisenoise.

n The minimum clearances specified on the nextpage should be maintained when carrying outthe installation. These minimum distancesserve to ensure unrestricted air intake andexhaust. The exhaust air must not be intake inagain. Observe the performance of externalmodules. Additionally, there must be adequatespace available for installation, maintenanceand repair.

n If the outdoor module is erected in an area ofstrong winds, then the device must be pro-tected against them and it is recommended anadditional stabilization. This can, for example,be realized with ropes or other structures(Fig. 65). The snow line is to be observedduring installation (Fig. 66).

n The outdoor module must always be installedon vibration dampers. Vibration dampers pre-vent the transmission of vibrations through thefloor or walls.

n A heated, condensate tra ensures that conden-sation from the pan can drain off. Ensure thatthe condensate is prevented from freezing sothat it can drain off (gravel, drainage). TheWater Ecology Act is to be observed.

n If there is insufficient space under the devicefor the refrigerant lines, then the pre-cutrecesses can be removed from the lateralenclosure-panel and the pipes guided throughthese openings.

n During installation, add about 20 cm to theexpected snow depth to guarantee unimpededintake and exhaust of outdoor air year round(Fig. 66).

n The installation site of the outdoor moduleshould be agreed together with the operatorprimarily so that operating noise is minimisedand not in terms of “short routes”. Thanks tothe split-design technology there are a greatdeal of different installation options with almostidentical efficiency available.

1

Fig. 65: Protection from wind

1: Wind

NOTICE!

The site for the outdoor unit must be selectedso that machinery noise that occurs disturbsneither the residents nor the facility operator.Observe the TA-noise specifications as well asthe table containing the drawings relating tosound pressure levels.

20 cm

1

Fig. 66: Protection from snow

1: Snow


60

Point of emissionsAssessment level in accordance

with TA noise

days in dB(A) nights in dB(A)

Industrial areas 70 70

Commercial areas 65 50

Core areas, village areas and mixed zones 60 45

General residential areas and small housing estates 55 40

Exclusively residential areas 50 35

Spa areas, hospitals and mental institutions 45 35

Isolated noise peaks of short duration may not exceed 30 dB(A) during the day and 20 dB(A) at night.

Definition des Gefahrenbereiches

WARNING!

Access to the unit is only permitted for author-ised and trained persons. If unauthorised per-sons can approach the danger areas, theseareas must be identified with correspondingsigns, barriers, etc.

n The external danger area surrounds the equip-ment up to a distance of 2 m, measured in alldirections from the unit housing.

n The external danger area on-site can differ asa result of the setup. The specialist companyperforming the installation work bears theresponsibility for this.

n The internal danger area is located inside themachine and can only be reached with the useof an appropriate tool. Access is prohibited forunauthorised persons!

61

Minimum distances in mm for the outdoor modules

1 2 3

4 5 6

>= 1

500

>= 1

500

>= 300 >= 600

>= 6

00

>= 1

500

>= 2000

a

aa

a

Fig. 67: Mindestabstände bei Aufstellung eines Außenmoduls in mm

1: Against a wall, free flow air forward, backwardflow restriction

2: Against a wall, facing the wall air outlet, flow frontrestriction

3: Freely between two walls, facing the wall outlet,Sides: flow restrictions in front and rear

4: In a niche, free flow air to the front, rear and flowrestriction on both sides.

5: Before a covered wall, free flow air to the front,rear and top of flow restrictions

6: Before a covered wall, air outlet towards wall,flow restrictions behind and above

a: WKF/WKF-compact 70 >= 150 mmWKF/WKF-compact 120/180 >= 200 mmWKF/120/180 Duo >= 200 mm

1 2

3 4

>= 1

500

>= 300 >= 600 >= 600 >= 600

>= 600 >= 600

>= 1

500

>= 1500 >= 3000>= 600 >= 3000 a

a

a

Fig. 68: Minimum distances for installation of several outdoor modules in mm

1: Against a wall, facing the wall air outlet, flow frontrestriction

2: In a niche, free flow air to the front, rear and flowrestriction on both sides.

3: Between two walls, facing the wall outlet andother modules, Sides: flow restrictions in frontand rear

4: Between two walls, air outlet towards wall, or theexternal modules-free: flow restriction in front,rear and internal modules on the sides.

a: WKF/WKF-compact 70 >= 150 mmWKF/WKF-compact 120/180 >= 200 mmWKF/120/180 Duo >= 200 mm


62

Condensate draining and ensured discharge

3

2

4

8

5 5

10

6

7

9 9

11 11

1

Fig. 69: Condensate-, melt-water drainage andtransversely reinforced strip footing (sectionaldrawing)

1: Outdoor module2: Leg3: Condensation catch pan4: Floor bracket5: Transversely reinforced strip footing

HxBxD = 300x200x800 mm6: Gravel layer for seepage7: Drainage canal8: Protection tube for refrigerant pipes and elec-

trical interconnection (temperature resistant upto at least 80 °C)

9: Depth of frost penetration10: Drainage pipe11: Soll

NOTICE!

The refrigerant lines must enter the housingfrom the rear, side or front with the use of theREMKO OA2 oil separator.WKF/WKF-compact 70/85/120/180

EB B

A D

C

10

1

5 5

71

8

3

F

Fig. 70: Dimensioning of the transversely rein-forced strip footing (Plan view)

Please see the terms 1,3,5,7,8 and 10 the legendon Fig. 69

Dimensioning of the strip footing(all values in mm)

Dim.

WKF 70WKF-compact 70


WKF 120 Duo


WKF 180 Duo

A 800 800

B 200 200

C 620 620

D 370 350

E 400 420

F 100 100

Condensate connectionIf the temperature falls below the dew point, con-densation will form on the finned condenser duringheating operation.

A condensate drip pan should be installed on theunderside of the unit to drain any condensate.

63

n The condensate drain pipe to be installed on-site must be installed with a in cline of at least2 % for good drainage. If necessary, fit vapourdensity insulation.

n When operating the system at outdoor temper-atures below 4 °C, care must be taken that thecondensate line is frost protected. The lowerpart of the housing and condensate pan are tobe kept frost free in order to ensure permanentdrainage of the condensate. If necessary, fitsupplementary pipe heating.

n After completed installation, check that thecondensate drainage is unobstructed andensure that the line is leak tight.

Ensured discharge in the event of leakageWith the REMKO oil separator OA 2.2, the belowlisted requirements of local regulations and lawsare met.

NOTICE!

Local regulations or environmental laws, forexample the German Water Resource Law(WHG), can require suitable precautions toprotect against uncontrolled draining in case ofleakage to provide for safe disposal ofescaping refrigerator oil or hazardous media.

NOTICE!

With the connection of an external drain line tothe oil separator, it must be kept frost-free.

5 Hydraulic connection

A separate interpretation of nominal flow ratemust be made for every system (see technicaldata).

n For hydraulically isolation of the heating cir-cuits, a buffer storage can be installing as ahydraulic switch.

n Make a pipe-network calculation before instal-ling the heat pump. After installing the heatpump, it is necessary to perform a hydraulicbalancing of the heating circuit.

n Protect floor heating systems against exces-sively high inlet temperatures.

n Do not reduce pipe diameters for the supplyand return connections to the heat pumpbefore connecting a buffer tank-unit.

n Plan for air bleed valves and drain-off taps atappropriate places.

n Flush the the system's entire pipe networkbefore connecting the heat pump.

n One or, where necessary, several expansiontanks must be designed for the entire hydraulicsystem.

n The system pressure of the entire pipe networkis to be matched to the hydraulic system andmust be checked when the heat pump isturned off. Also update the static-pressure formsupplied with the heat pump.

n As delivered, the safety assembly consists of amanometer, air bleeder and safety valve. It isto be mounted to the pipe connection providedon the indoor unit.

2

1 3

Fig. 71: Safety assembly (similar image)

1: Manometer2: Automatic bleeder3: Safety valve

n The shut-off valves each contain a thermom-eter.


64

Fig. 72: Shut-off valves

n Install the dirt traps delivered with the unit out-side the heat pump in the return line. Ensurethat the dirt trap remains accessible for inspec-tion.

n Be sure to position one gate valve upstreamand another downstream of the dirt traps. Thisensures that the dirt traps can be checked atany time without loosing water.

n The dirt traps must be checked during everyservice of the system.

n Additionally, a hand-operated bleeder isinstalled on the heat pump for additionalbleeding.

n All visible metallic surfaces must be addition-ally insulated.

n Cooling mode via the heating circuit requires acompletely vapour diffusion tight insulationalong the entire length of the pipework.

n All outgoing heating circuits, including the con-nections for water heating, are to be securedagainst circulating water by means of checkvalves.

n Before being placed in service, the systemmust be thoroughly flushed. Conduct a sealtest and perform a thorough bleeding of boththe indoor unit and the entire system - repeat-edly, if necessary.

Actual schemas for hydraulic integration canbe found on the internet at www.remko.de

65

WKF hydraulic diagramFunctions: heating or cooling and hot water, operating mode: monoenergetic

This hydraulic diagram serves merely to assist in planning activities;the hydraulic system on site must be planned and laid out by the installer!

A

B

CFBKK

KW

ZK

AB

BA

BAB

A

WW

Fig. 73: WKF example hydraulic diagram

A: Outdoor moduleB: Indoor moduleWKFC: Storage tankFB: Mixed heating cycle

KK: Cooling cycleKW: Cold waterWW: Warm waterZK: Circulation

WKF heat pump modules are used in systems with existing storage tank systems. Their applications arevaried and they can be ordered in a range of different equipment variants. For example, external drinkingwater storage tanks with a min. HE surface area of 3.0m² can be used.

The REMKO drinking water storage tank, type EWS 300 is an enamelled drinking water storage tank with aHE surface area of 3.5m². The additionally necessitated three-way changeover valve is switched over by theSmart Control to provide HW. In a bivalent alternative application, the boiler can be connected directly to theindoor unit (bivalent variant).

The highly efficient primary pump in the indoor unit can be used with the single split heat pumps for the circu-lation pump heating cycle. With the Duo split heat pumps, a buffer tank must be provided, e.g. KPS 300. Thisis speed-controlled according to requirement. A pressure loss of max. 80 kPa is made available by the cus-tomer. If the pressure losses on site exceed this, a separate storage tank, e.g. REMKO KPS 300 must beused as a hydraulic compensator. Then a REMKO heating cycle group unmixed, type HGU, and two mixedheating cycle groups (for WKF Duo four), type HGM, are available.

So that the heat pump can efficiently and smoothly supply the heating water system directly (without buffertank), the following basic prerequisites must be fulfilled:

n It must be possible to operate the heating system with an inlet temperature (e.g. only floor heating)n The pressure drop of the heating system may not exceed 80 kPan A min. water flow rate of 20 l/min must be assuredn The pipe diameters of the pipes from the heating pump to the heating circuit may not be reducedn The min. water volume with active cooling must be observed


66

WKF-compact hydraulic diagramFunctions: heating or cooling and hot water, operating mode: monoenergetic

This hydraulic diagram serves merely to assist in planning activities;the hydraulic system on site must be planned and laid out by the installer!

A

B

FBKKKW

BAB

A

ZK WW

Fig. 74: WKF-compact example hydraulic diagram

A: Outdoor moduleB: Indoor module WKF-compactFB: Mixed heating cycleKK: Cooling cycle

KW: Cold waterWW: Warm waterZK: Circulation

WKF compact heat pump models are ideal for use in new construction, where the heat pump is the sole heatgenerator. In an emergency, an electr. auxiliary heater (monoenergetic variant) can be switched on by theSmart Control.

The REMKO drinking water storage tank, type WKT 300 is an enamelled drinking water storage tank with aHE surface area of 3.5m², which is integrated into the bottom housing. The additionally necessitated three-way changeover valve is switched over by the Smart Control to provide HW, and is also part of the indoorunit. In a bivalent alternative application, the boiler can be connected directly to the indoor unit (bivalent var-iant). In the bivalent variant, the changeover valve required for this is also part of indoor unit.

The highly efficient primary pump in the indoor unit can be used as a circulation pump heating cycle and itsspeed is regulated according to requirements. A pressure loss of max. 80 kPa is made available by the cus-tomer. If the pressure losses on site exceed this, a separate storage tank, e.g. REMKO KPS 300 must beused as a hydraulic compensator. Then a REMKO heating cycle group unmixed, type HGU, and two mixedheating cycle groups (for WKF Duo four), type HGM, are available. Moreover, the hot water connections,cold water supply, and circulation are all connected to the indoor unit on the top.

So that the heat pump can efficiently and smoothly supply the heating water system directly (without buffertank), the following basic prerequisites must be fulfilled:

n It must be possible to operate the heating system with an inlet temperature (e.g. only floor heating)n The pressure drop of the heating system may not exceed 80 kPan A min. water flow rate of 20 l/min must be assuredn The pipe diameters of the pipes from the heating pump to the heating circuit may not be reducedn The min. water volume with active cooling must be observed

67

6 Function of an electrical heating coil6.1 Function of an electrical heating coilLayout of the electrical heating coil

1

2

3

4

Fig. 75: Electrical heating coil, layout

1: Thermostat includingsafety temperature limiter (STB)

2: Operating LED (On/Off)

3: Reset STB4: Function switch

(0 = off, I = automatic, II = manual mode)

Function switch:Automatic mode (I)

When the automatic mode is switched on, the heating coil, in accordance with the set bivalence point or thebuilding heating load and selected inlet temperature, is engaged after a time lag and assists the heat pumpin parallel operating mode.

Manual operation (II)

When manual mode is engaged, the heating coil is engaged directly, regardless of the parameters in theSmart Control. This function can be used in the emergency heating mode, or for the pre-heating of non-installed or operationally capable outdoor modules. The temperature is then set using the thermostat on thehousing.

LED red (On):This LED indicates if the heating coil is being activated or not.

Reset STB (Reset):If the overheating of the heating coil has triggered the safety temperature limiter (STL), it can be reset aftercooling down again by pressing this button. However, the reason for it being triggered must be analysed andremedied.


68

6.2 Emergency-heat operationShould you experience faults with the Smart Con-trol or with the outdoor module during operation ofyour heat pump system, it is possible to activate amanual emergency-heat operation. To do so, theelectric heating coil, internal primary pump, and ifnecessary the circulation pumps heating cyclemust be switched on manually.

To activate emergency-heat operation if the SmartControl fails, proceed as follows:

1. Remove the top front panel.

2. Set the black knob of the electrical terminalbox (located on the left-hand side) for theauxiliary heater to "position 2".

3. Set the thermostat on the electrical terminalbox of the auxiliary heater to the desired tem-perature, e.g. floor heating 35°C, heating ele-ment 50°C.

4. Pull out the plug for the PWM connection forthe emergency operation of the primarypump.

NOTICE!

The white locking clips on the plug for thePWM signal must be unlocked beforeremoving the plug.

5. If you are using external heating cycle groups(pumps), they must also be provided with aseparate power supply.

6. If you are using external heating cycle groups(pumps), HGU or HGM from Remko, youshould also set the rotating wheel on thefront of the pump to the "5 o'clock" position.

7. Remove the actuator of the three-waychangeover valve by pulling out the safetysplit pin between motor and valve body (seeseparate "Three-way changeover valve"operating instructions).

8. Pull the motor away from the valve body.

9. Turn the cylindrical ball valve in the directionof Outlet B using the round side (floor heatingside or heating element).

To switch to providing hot water, proceed as fol-lows:

1. Turn the cylindrical ball valve in the directionof Outlet A using the round side (domesticwater storage tank).

2. Set the thermostat on the electrical terminalbox of the auxiliary heater to the desired tem-perature, e.g. 50°C.

The following directions of flow must be realisedmanually:

Valve connection B -- Heating

Valve connection A -- Domestic water storage tank

The respective operating modes must beswitched manually!To activate emergency-heat operation if the out-door unit fails, proceed as follows:

1. In the menu of the Smart Control, go to the"Specialist-Heat pump-Bivalent temperature"screen.

2. Set the bivalence point of the controllerabove the unit's heating limit.

3. The electric heating element is then acti-vated.

4. Check the set temperature on the thermostatof the electric heating element.

5. If necessary set it above the max. desiredtemperature (HW target temperature), e.g. ifHW target temperature = 45°C, then heatingelement = 50°C.

6. The Smart Control takes full control of heatregulation and the activation of the heatingelement.

1

2

3

4

5

Fig. 76: 3-way-changeover valve

1: Actuator2: Safety split pin3: Connection A, domestic water storage tank4: Connection B, heating5: Connection AB

69

7 Cooling of theheat pump

Description of the cooling installationCooling via mixed heating cycle(surface heating cycle)If the series WKF heat pump is to be used forcooling, then this must be possible via the mixedheating cycle. The hydraulic connection is identicalto the connection for the heating cycle. If the circuitis used for heating or cooling, it will be connectedas presented in the hydraulic circuit diagrams onpages and . The sensors S12 and S11 measurethe inlet and return temperatures, when a heating-/cooling buffer is used.

Cooling via a separate cooling circuitIf a separate cooling circuit should be used withthe system in addition to the heating cycles, then achangeover valve (A14) must be installed in theinlet pipe, which is activated with 230 V. This isattached to the controller on A14. In cooling mode,the valve is switched to the cooling circuit AB/A. Ifno cooling mode is operated, the valve is de-ener-gised at AB/B heating cycle.

Dewpoint control via the Smart Control cableremote controlIf the series WKF heat pump is to be used toimplement a cooling function, the Smart Controlcable remote control must be installed in theselected reference room (e.g. living room). It is rec-ommended that it is mounted on the wall. It mustthereby ensured that the room air can freely flowover the remote control. The remote control meas-ures the room temperature and room humidity.From these it calculates the nominal dewpoint andcorrespondingly adjusts the cooling water tempera-ture with a sufficient safety margin so that the tem-perature on the activated room surface as well asthe exposed pipes does not fall below the dew-point.

The water temperature in the pipes is main-tained above the nominal dewpoint tempera-ture by the controller, in order to prevent theformation of condensation on the exposedpipes as well as those concealed under theplaster.

It is also recommended to install a 230 V dewpointmonitor with the associated pipe temperature sen-sors to the feed pipes outside the heat pump. Thelocation should be selected so that it does notfavour the temperature falling below the dewpoint.The dewpoint monitor is wired so that it divides theconnector in the feed line to the utility companyswitch to the controller (input S16) in order toswitch of the heat pump.

Cooling without installed cable remote controlin the roomIf no additional remote control apart from the heatpump is to be installed in the room, the regulationof the minimum inlet temperature is via the outsidetemperature minus 6 K. It is then essential tomount an additional 230 V dewpoint monitor withassociated pipe temperature sensors on the inletpipes. The location should be selected so that itdoes not favour the temperature falling below thedewpoint. The dewpoint monitor is wired so that itdivides the connector in the feed line to the utilitycompany switch to the controller (input S16) inorder to switch of the heat pump.

Cooling via a parallel buffer tank as systemboundaryIf the system is to be operated with a parallel buffertank, which acts as system boundary to the con-sumer circuit, then there is no need to mounted aremote control in the living room, if the regulationof the consuming cooling circuit is operated via anexternal controller.

Cooling via setpointIf no additional remote control is installed in theroom, the cooling system can be operate at a set-point that is above the dewpoint.

Example: minimum inlet temperature not less than+ 16 ° C

NOTICE!

Minimum water volumeIf the system/water volume in the cooling circuitprovided by the customer is less than 5L/kWcooling capacity, an additional buffer tank isrecommended to increase the volume. Thiscan be incorporated as a serial buffer in thereturn flow or as a hydraulic compensator. TheKPS series buffer tank can be supplied byREMKO for this.


70

8 Corrosion protectionOxygen always plays a role if metal materials in a heating system corrode. pH values and the salt contentalso play a major role. The challenge: A licenced plumber who would like to be able to guarantee his cus-tomers a hot water heating system not at risk of corrosion from oxygen - without the use of chemicals - mustpay attention to the following:

n Correct system design by the heating contractor/planner andn subject to the installed materials: filling the heating system with demineralised softwater or fully deionised

water, checking the pH value after 8 to 12 weeks.

See the following table for the requirements in accordance with VDI 2035 Part 1 with regard to total hard-ness.

Total hardness [°dH] subject to the specific system volume

Overall output in kW <20 l/kW ³20 l/kW and <50 l/kW ³50 l/kW

to 50 kW £16,8 °dH £11,2 °dH £0,11 °dH

The following table provides the allowed oxygen content in connection with the salt content.

Reference values for the hot water in accordance with VDI 2035 Part 2

low-salt salline

Electrical conductivityat 25°C

μS/cm < 100 100-1500

Oxygen content mg/l < 0,1 < 0,02

pH value at 25°C 8,2 - 10,0 *)

*) For aluminium and aluminium alloys the pH value range is limited: the pH value at 25°C is 8.2-8.5 (max.9.0 for aluminium alloys)

In low-salt water and the correct pH for a short time even to oxygen concentrations up 0.5 mg / l aretolerated.

Water treatment with chemicalsAdding chemicals to treat water should only bedone as an exception. VDI 2035 Part 2 requiresexplicitly under Point 8.4.1 that all water treatmentbe explained and documented in the system logbook. This has reasons:

n The improper use of chemicals often leads tothe failure of elastomer materials

n To blockages and deposits because of sludgeformation

n To defective floating seals in pumpsn To the formation of biofilm which can cause

microbial influenced corrosion or significantlyimpair heat transfer.

71

9 Connection ofrefrigerant lines

9.1 Connection of refrigerant linesn The outdoor- and the indoor units are con-

nected with two (WKF Duo with four) copperpipes of refrigerator quality having the dimen-sions 3/8" = 9,52 mm and 5/8" = 15,88 mm(REMKO special accessory).

n Observe the permitted bending radius for therefrigerant pipes during installation in order toprevent kinks. Never bend a pipe twice in thesame place in order to prevent embrittlementor crack formation.

n Assure suitable fastening and insulation whenlaying the refrigerant pipes.

n The copper pipes are to be flared to make theconnections to the units. In doing so, checkthat the flare has the correct shape and suit-able union nuts. ( Fig. 77 to Fig. 79).

2

1

Fig. 77: Deburring the refrigerant line

1: Refrigerant line2: Deburrer

1

Fig. 78: Flanging the refrigerant line

1: Flanging tool

Fig. 79: Correct flange shape

Copper piping Out-side diameterer

Flare dimensions ø A

3/8" = 9,52 mm 12,4 - 12,8 mm

5/8" = 15,88 mm 21,9 - 22,3 mm

Connection to the unitn Remove the cover panel from the outdoor unit

if necessary. It may be necessary to removethe pre-cut bushings.

n Take off the factory-fitted protective caps. Youcan use the union nuts for additional mounting.Make sure to slide the union nuts onto the pipebefore it is flared.

n Make connections to the device by hand ini-tially, in order to ensure a good fit. Later,tighten the joints with two open-end wrenchesUse one wrench to resist the rotation of theother (Fig. 80).


72

2

1

Fig. 80: Tighten fittings

1: Tighten 1st Spanner2: Counter 2nd Spanner

Copper piping Out-side diameter

Tightening torque

3/8" = 9,52 mm 32 - 40 Nm

5/8" = 15,88 mm 65 - 75 Nm

n The installed refrigerant pipes, including theflare connections, must be provided with suit-able insulation.

n Special measures need not be taken for thereturn of the compressor oil.

NOTICE!

Use only tools which are approved for use inan HVAC environment. (z. B.: bending pliers,pipe/tubing cutters, de-burrers and flaringtools). Do not cut refrigerant pipes with a saw.

NOTICE!

All work must be carried out in a way that pre-vents dirt, particles, water etc. from entering,refrigerant lines!

Outdoor units may be delivered with nuts suit-able for joining flanges.

9.2 Commissioning therefrigeration system

Leak testingOnce all the connections have been made, thepressure gauge station is attached to the Schradervalve as follows (if fitted):

blue = large valve = suction pressure

Once the connection has been made successfully,the leak test is carried out with dry nitrogen. Theleak test involves spraying a leak detection sprayonto the connections. If bubbles are visible, theconnections have not been made properly. In thatcase, tighten the connection or, if necessary,create a new flange.

Pumping down to vacuumAfter completing a successful leak test, the excesspressure in the refrigerant pipes is removed and avacuum pump with an absolute final partial pres-sure of min. 10 mbar is used to remove all of theair and empty the pipes. Any moisture present inthe pipes will also be removed.

NOTICE!

A vacuum of at least 10 mbar must be pro-duced!

The time required to generate the vacuum isdependent on the final pressure pipe volume of theindoor units and the length of the refrigerant pipes.This always takes at least 60 minutes. Once anyforeign gases and humidity have been completelyextracted from the system, the valves on the pres-sure gauge station are closed and the valves onthe outdoor component are opened as described inthe "Commissioning" section.

73

Commissioning

NOTICE!

Commissioning should only be performed anddocumented by specially trained personnel.

Observe the operating manual for the indoorunits and outdoor components when commis-sioning the entire system.

Once all components have been connected andchecked, the system can be commissioned. Toensure the proper functioning of the units, a func-tional check must be performed prior to handoverto the operator in order to detect any operationalirregularities. This check is dependent on theinstalled indoor units. The processes are specifiedin the operating manual for the indoor units beingcommissioned.

Functional checks and test runCheck the following points:

n Leak-tightness of the refrigerant pipes.n Compressor and fan running smoothly.n Discharge of warmer water in the indoor unit

and discharge cold air in the outdoor unit inheating mode

n Function test of the indoor units and all pro-gram sequences.

n Check of the surface temperature of the suc-tion pipe and that the vaporiser is not over-heating. To measure the temperature, hold thethermometer to the suction pipe and subtractthe boiling point temperature reading on thepressure gauge from the measured tempera-ture.

n Record the measured temperatures in thecommissioning report.

Function test of heating operating mode1. Remove the protective caps from the valves.

2. Start the commissioning procedure by brieflyopening the shut-off valves on the outdoorcomponent until the pressure gauge indi-cates a pressure of approx. 2 bar.

3. Check all connections for leaks with leakdetection spray and suitable leak detectors. Ifno leaks are found, fully open the shut-offvalves by turning them anti-clockwise using aspanner. If leaks are found, draw off therefrigerant and rework the defective connec-tion. It is imperative that the vacuum creationand drying steps are repeated!

4. Activate the main circuit breaker or fuse (tobe provided by the customer).

5. Program the heat pump manager.

6. Switching on heating mode

Due to the switch on delay, the com-pressor will start up a few minutes later.

7. Check the correct function and settings of allregulation, control and safety devices duringthe test run.

8. Measure all cooling data and record themeasured values in the commissioningreport.

9. Remove the pressure gauge.

Final tasksn Use the heat pump manager to set the target

temperature to the required value.n Re-install all disassembled parts.n Instruct the operator on how to use the units.

NOTICE!

Check that the shut-off valves and valve capsare tight after carrying out any work on thecooling cycle. Use appropriate sealant prod-ucts as necessary.


74

Adding refrigerant

DANGER!

The connection of refrigerant pipes and thehandling of refrigerant may be only be carriedout by qualified personnel (competence cate-gory I).

DANGER!

Only refrigerant in a liquid state may be used tofill the cooling cycle!

CAUTION!

Danger of injury from refrigerant!

Refrigerant degreases the skin on contact andmay cause cold burns.

Therefore:

- Wear chemical-resistant protective gloveswhen undertaking any work involving refriger-ants.

-Safety glasses must be worn to protect theeyes.

NOTICE!

Check the overheating to determine the refrig-erant fill quantity.

n The outdoor unit is pre-filled with refrigerantsufficient for a length of ordinary pipe (seetable).

n If the length of any of the pipelines exceedsmax. pipe length, then an additional filling foreach metres of pipe length (basic length) isrequired (see next table).

Basic pipelength

Additional fill quantity

WKF 70, WKF-compact 70

Zo max. 5 m 0 g/m

Basic pipelength


WKF 70, WKF-compact 70

5 m to max. 30 mper circuit 50 g/m

Basic pipelength


WKF 120WKF-com-pact 120WKF 120

Duo

WKF 180WKF-com-pact 180WKF 180

Duo

To max. 10 m 0 g/m 0 g/m

10 m to max. 50m per circuit 50 g/m ---

10 m to max. 75m per circuit --- 50 g/m

Examples

Basic pipelength


WKF 70,WKF-com-

pact 70All other

series

5 m 0 g 0 g

10 m 250 g 0 g

15 m 500 g 250 g

20 m 750 g 500 g

25 m 1000 g 750 g

NOTICE!

The escape of refrigerant contributes to cli-matic change. In the event of escape, refrig-erant with a low greenhouse potential has alesser impact on global warming than thosewith a high greenhouse potential. This devicecontains refrigerant with a greenhouse poten-tial of 1975. That means the escape of 1 kg ofthis refrigerant has an effect on global warmingthat is 1975 times greater than 1 kg CO2,based on 100 years. Do not conduct any workon the refrigerant circuit or dismantle thedevice - always enlist the help of qualifiedexperts.

75

10 Elektrical connection10.1 Important Information

You can find information on the electrical con-nections of the indoor and outdoor unit, on theterminal assignment of the I/0 module, as wellas on the circuit diagrams in the separate"Electrical wiring" operating instructions

NOTICE!

For an existing block the heat pump by theutility (utility switching) must be used the con-trol contact S 16 of the Smart-Control.

11 Commissioning11.1 Control panel and

information on commissioningThe Smart Control is used to operate and controlthe entire heating system. The Smart Control isoperated from the operating unit. The operatingunit is positioned on the basic device.

n The unit is pre-installed at the factory. After areset of the Smart Control, the default parame-ters are loaded.

n An intensive visual inspection is to be carriedout before the actual commissioning.

n Switch on the power supply.n Then the preinstalled data is loaded and the

parameters can be set with the help of thecommissioning wizard or in the system configu-ration. You can find information on this in theseparate operating instructions of the SmartControl.

NOTICE!

Before commissioning the entire system,including hot water tank, must be filled!


76

Overview of the controls

2

3

4

3

5

6

1

Fig. 81: Control elements of the Smart-Control

1: SD-card2: Display3: Softkeys4: Rotary knob5: Info key6: Menu key

Function of the keysThe softkeys underneath the display fulfil differentfunctions. The current function (e.g. Cancel, OK orEdit) appears on the display, right above therespective key. If nothing is shown on the displayabove a softkey, this key does not have a functionassigned in the currently active mode.

The softkeys and rotary knob are also used fornavigation purposes. By pressing the right softkeyand turning the rotary knob, you can select themenu items, allowing you to go deeper into themenu structure. Pressing the left softkey multipletimes takes you back to the home screen (3Dhouse icon).

Pressing the Info key (6) delivers information andsupport at any time on the area currently selected.

Pressing the Menu key (7) takes you to the mainmenu.

The rotary knob (5) allows you move through themenu. In addition, after selecting a parameter, therotary knob can be used to modify the value.

5 6

7

Fig. 82: Function of the keys

Additional information on the functional andoperation, refer to the Smart-Control manual.

77

12 Care and maintenanceRegular care and maintenance serves to ensuretrouble-free operation and long service-life of theheat pump system.

Caren The indoor and outdoor units must be kept free

of soiling, vegetation and other deposits.n The device is to be cleaned with a damp cloth.

In doing so, it is to be ensured that no caustic,abrasive or solvent-based cleaning productsare used. Use of powerful water jets is to beavoided.

n The fins on the outdoor unit are to be cleanedat least once a year.

Maintenancen To perform the possibly statutory seal test, it is

necessary to arrange an annual maintenancecontract with an appropriate specialist firm.

NOTICE!

As the refrigerant capacity exceeds 3 kg, anannual seal inspection must be made of therefrigerant circuit by a firm specializing in thisfield. A heating system should always be serv-iced annually. Therefore, we recommendarranging for a service contract that includesthe seal inspection.

13 Temporary shut-downThe system may not be switched off at the mainspower supply even if the heating system is notused for heating purposes over an extended period(e.g. holidays)!

n During the temporary shut-down the plant forheating must be put in a "Standby" mode andfor hot water over to the "Off".

n Heating phases can be programmed for theduration of the period of absence.

n The previous operating mode has to beswitched back on when the shut-down phaseis over.

n Instructions for changing the mode appear inthe corresponding chapter of the Smart-Controlmanual.

NOTICE!

In "Standby" , the heat pump is in standbymode. Of the entire system, only the frost-pro-tection function s activated.


78

14 Troubleshooting and customer service14.1 General TroubleshootingThe unit has been manufactured using state-of-the-art production methods and tested several times toensure its correct function. However, in the event that malfunctions should occur, the device should bechecked against the following list. Please inform your dealer if the unit is still not working correctly after all ofthe functional checks have been performed.

Fault Possible causes Remedial measures

The heat pump doesnot start or switchesitself off

Power outage, under-voltage Check the voltage and, if necessary,wait for it to come back on

Defective mains fuse Master switch off Exchange mains fuse, master switch on

Damaged mains cable Repair by specialist firm

Power company off-period Wait until the power-company off-period is over and the heat pump startsup as required

Operational temperature limits too lowor too high

Observe temperature ranges

Set-point temperature exceeded Incor-rect mode

The set-point temperature has to behigher than the heat-source tempera-ture, check mode

Disconnect the outdoor module, thenestablish the correct clamp order usingthe connection plan Re-establishvoltage to the outdoor module. Alsomake sure that the protective earth isconnected correctly.

Heat circuit pump failsto switch off

Incorrect pump switching Arrange to have pump switchingchecked in "heating circuit" expert level

Heat circuit pumps failto switch on

Incorrect mode set Check mode

Control PCB fuse in indoor moduleswitching cabinet faulty

Exchange the fuse on the left side ofthe control PCB

Incorrect heating program set Check heating program We recom-mend the operating mode "heat" in thecold heating season

Temperature overlapping, e.g. externaltemperature greater than room temper-ature

Observe temperature ranges

Red indicator lamp Failure outdoor module Contact customer service

79

14.2 Error messages on the outdoor modulesOutdoor modules error display

11

A B

Fig. 83: Displays on outdoor modules

1: DisplayA: WKF/WKF-compact 70

B: WKF/WKF-compact 120/180WKF 120/180 Duo

Display

LED display

Replace MeaningRed Green Yellow

E101 - - - IM Communication error between indoor unit and out-door unit or wrong platinum versions

E102 - - - IM Interruption in communication between indoor unitand outdoor unit

E162 - - - IM EEPROM error

E177 l (+) m OM Outdoor unit has received an emergency stop signal

E201 l Z m OM Communication error between indoor unit and out-door unit or wrong platinum versions

E202 l l or m m OM Interruption in communication between indoor unitand outdoor unit

E203 l l Z OM Communication error between main and inverterboard

E221 l Z m OM Error in outside temperature probe

E231 l Z m OM Evaporator probe error

E251 l Z m OM Hot gas temperature probe error

E320 l Z m OM Overload switch probe error

E403 l Z m OM Ice protection compressor (in cooling mode only)

E404 l Z m OM Safety operation after compressor overload(normal operation)

E407 l Z m OM Disruption by high pressure switch

E416 l Z m OM Compressor overheated

E419 l Z m OM Malfunction of electronic expansion valve

E425 l Z m OMPhase error malfunction. Minimum a phase conductoris missing (WKF 180 only) or wrong EEPROM on themotherboard (WKF 120 only)

E440 l Z m OM Heating mode is not possible; outdoor temp. > 35°C

E441 l Z m OM Cooling mode is not possible; outdoor temp. < +10°C

E443 l Z m OM Gas leakage error (before operation)


80

Display

LED display

Replace MeaningRed Green Yellow

E458 m m l OM Compressor start error

E461 m Z m OM Power consumption of the compressor is not plau-sible (too low)

E462 l Z m OM Power consumption of the compressor is not plau-sible (too high)

E463 l Z m OM Compressor overload switch (OLP) is triggered

E464 Z m m OM Inverter board current consumption IPM is too high orsoftware version of the main board

E465 m l Z OM Compressor current consumption too high

E466 Z l m OM AC/DC power supply malfunction

E467 l m l OM Phase error malfunction.A phase conductor is missing on the compressor

E468 l Z Z OM Motherboard/inverter board current consumptionprobe malfunction

E469 l Z m OM Disturbance voltage probe (inverter board)

E470 l Z m OM EEPROM malfunction (read error)

E471 l Z m OM EEPROM version of the motherboard does not matchthe inverter

E474 Z Z m OM IPM (IGBT module) malfunction

E475 m m l OM BLDC fan 2 malfunction

E484 l Z l OM PFC overload malfunction (inverter board)

E485 l Z m OM Total power consumption malfunction

E500 Z Z m OM Inverter board overheating malfunction

E554 l Z m OM Refrigerant quantity malfunction

E556 m m Z OM EEPROM version of the motherboard and Com-Kitversion do not match

E901 l Z m OM Return flow probe malfunction

E902 l Z m OM Inlet probe malfunction

E906 l Z m OM Liquid line probe malfunction

l = On / Z = Flashing / m = Off / IM = Indoor unit / OM = Outdoor unit

81

14.3 Error messages on the Smart-ControlOperating messages, warnings and error display on the Smart-Control

Operating messages

ID Description Desig. Details

ID6000 Storage tank 1: Max.temperature reached The temperature on one of the probes in storage tank 1 is

higher than the maximum permitted storage tank temperature

ID6001 HW request There is an active requirement to charge the storage tank

ID6002 Heat pump compressorstart Heat pump compressor start

ID6003 Switching cycle disa-bled (I/O2) The heat pump was disabled in order to reduce the compres-

sor's switching cycles

ID6005 Internal pump lead time The internal pump runs at reduced speed during the pumplead time

ID6006 Switching cycle disa-bled The heat pump was disabled in order to reduce the compres-

sor's switching cycles

ID6007 Min. holding time The heat pump is disabled due to a minimum holding time

ID6008 Disable signal S16 The heat pump is disabled due to a disable signal

ID6009 Disable signal (I/O 2) The heat pump is disabled due to a disable signal

ID6010 Heat pump compressorstart (I/O 2) Heat pump compressor start

ID6012 Defrosting HP (I/O 2) Defrost heat pump

ID6020 Pump internalafter-run time The internal pump runs at a reduced speed during the pump

after-run time

ID6103 Heat demand HP Heat demand, heat pump

ID6104 Cooling demand HP Cooling demand, heat pump

ID6105 Defrost heat pump Defrost heat pump

ID6107 Standby mode enabled Standby mode enabled

ID6108 Random delay afterpower failure

Random delay after power failure (up to 200 seconds afterpower returns) - the purpose of the random delay is to avoid asystem overload due to many consumers being switched onat the same time

ID6109 Outdoor temp. Heatpump usable limit

Outdoor temp. Heat pump usable limit - the heat pump is disa-bled due to the usable limits being exceeded or not beingreached

ID6111 Heat pump bivalencetemperature

Heat pump bivalence temperature - the heat pump is disabledbecause the temperature has dropped below the bivalencetemperature

ID6113 Solar heating Solar heating - heat generators are disabled

ID6115 Low pressure differ-ence The pressure difference is too low to start the compressor

ID6116 Maximum defrostingperiod Maximum defrosting period


82

Error


ID7050 Anti-freeze protection The anti-freeze protection in the heat pump's heat exchangerwas triggered due to an inlet temperature of less than the min-imum temperature. After eliminating the cause of the error, thecontroller must be restarted to reset the error

ID7150 EEV motor fault EEV motor fault. Please contact an authorised service techni-cian

ID7200 Open contact - storagetank 1 bottom probe S02 Open contact - storage tank 1 bottom probe

ID7201 Short circuit - storagetank 1 bottom probe S02 Short circuit - storage tank 1 bottom probe

ID7202 Open contact - storagetank 1 middle probe S09 Open contact - storage tank 1 middle probe

ID7203 Short circuit - storagetank 1 middle probe S09 Short circuit - storage tank 1 middle probe

ID7204 Open contact - storagetank 1 top probe S08 Open contact - storage tank 1 top probe

ID7205 Short circuit - storagetank 1 top probe S08 Short circuit - storage tank 1 top probe

ID7206 Open contact - externalprobe S10 Open contact - external probe

ID7207 Short circuit -external probe S10 Short circuit - external probe

ID7208 Open contact -refrigerant probe S07 Open contact - refrigerant probe

ID7209 Short circuit - refrig-erant probe S07 Short circuit - refrigerant probe

ID7210 Open contact - circula-tion temp. probe S05 Open contact - drinking water circulation temperature probe

ID7211 Short circuit - circula-tion temp. probe S05 Short circuit - drinking water circulation temperature probe

ID7212 Open contact - inlettemp. probe S13 Open contact - inlet temp. probe

ID7213 Short circuit - inlettemp. probe S13 Short circuit - inlet temp. probe

ID7218 Open contact - collector1 probe S01 Open contact - collector 1 probe

ID7219 Short circuit -collector 1 probe S01 Short circuit - collector 1 probe

ID7228 Open contact - inlettemp. probe S13.2 Open contact - inlet temp. probe

ID7229 Short circuit - inlettemp. probe S13.2 Short circuit - inlet temp. probe

83


ID7231 Anti-freeze protection(I/O 2)

The anti-freeze protection in the heat pump's heat exchangerwas triggered due to an inlet temperature of less than 5°C.After eliminating the cause of the error, the controller must berestarted to reset the error

ID7236Open contact - mix.heating cycle inlettemp. probe

S12 Open contact - mixed heating cycle inlet temperature probe

ID7237Short circuit - mix.heating cycle inlettemp. probe

S12 Short circuit - mixed heating cycle inlet temperature probe

ID7238Open contact - mix.heating cycle returntemp. probe

S11 Open contact - mixed heating cycle return temperature probe

ID7239Short circuit - mix.heating cycle returntemp. probe

S11 Short circuit - mixed heating cycle return temperature probe

ID7250 Min. medium flow rate(I/O 2)

The medium flow rate fell below the heat pump's minimummedium flow rate due to defrosting or in cooling mode. Aftereliminating the cause of the error, the controller must berestarted to reset the error

ID7251 Min. volumetric flowrate

The medium flow rate fell below the heat pump's minimummedium flow rate due to defrosting or in cooling mode. Aftereliminating the cause of the error, the indoor and outdoor unitsmust be restarted to reset the error

ID7252 Heat pumpmalfunction code S20 Heat pump malfunction code

ID7253 Heat pump 2malfunction code S20.2 Heat pump 2 malfunction code

ID7254 General inverter fault General inverter fault - please contact an authorised servicetechnician

ID7255 EEPROM error EEPROM error. Please contact an authorised service techni-cian

ID7256 Envelope fault Envelope fault - the compressor operates outside the pro-grammed curve. Please contact an authorised service techni-cian

ID7257 Fan overload The compressor is disabled due to a fan overload

ID7258 Maximum hot gas tem-perature Maximum hot gas temperature - the compressor is blocked by

having reached the maximum hot gas temperature

ID7259 High pressure malfunc-tion High pressure malfunction. If this fault occurs frequently,

please contact an authorised service technician

ID7260 High pressure malfunc-tion transducer The compressor is disabled due to a high pressure malfunc-

tion

ID7262 Fault with probe B2probe outdoor module Fault with probe B2 - Please check probe B2 and the connec-

tion to the inverter board

ID7264 Fault with probe B4probe return flow Fault with probe B4 - Please check probe B4 and the connec-


ID7267 Fault with probe B7probe inlet Fault with probe B7 - Please check probe B7 and the connec-



84


ID7269 Fault with probe B9probe heat gas Fault with probe B9 - Please check probe B9 and the connec-


ID7270 Fault with probe B10probe suction pipe Fault with probe B10 - Please check probe B10 and the con-

nection to the inverter board

ID7271 Fault with probe B11probe high pressure Fault with probe B11 - Please check probe B11 and the con-


ID7272 Fault with probe B12probe low pressure Fault with probe B12 - Please check probe B12 and the con-


ID7273 WKF fault code E101 Communication error between com. kit and outdoor unit. F1/F2 twisted or cable break

ID7274 WKF fault code E177 Compressor stopped due to an emergency stop signal. Aftereliminating the cause of the error, the indoor and outdoor unitsmust be restarted to reset the error

ID7275 WKF fault code E221 Short circuit or open contact - probe ambient air temperaturemotherboard outdoor unit CN43 Pin 1&2

ID7276 Restart required Due to the changed system (setting / coding resistor), the con-troller has to be restarted - disconnect it from the powersupply for around 10 seconds

ID7278 Low overheating The compressor is disabled due to overheating being too low.

ID7283 Open contact - internalreturn temp. probe S15 Open contact - internal return temperature probe

ID7284Short circuit - internalreturn temperatureprobe

S15 Short circuit - internal return temperature probe

ID7285 Low suction gastemperature The compressor is disabled due to the suction gas tempera-

ture being too low

ID7286 Coding error Rc A unique unit identifier could not be assigned using the codingresistor at the Rc terminal

ID7287 Low evaporation tem-perature The compressor is disabled due to the evaporation tempera-

ture being too low

ID7288 High evaporation tem-perature The compressor is disabled due to the evaporation tempera-

ture being too high

ID7289 High condensation tem-perature The compressor is disabled due to the condensation tempera-

ture being too high

ID7290 WKF fault code E102 Communication error between com. kit and outdoor unit. F1/F2 twisted or cable break

ID7291 WKF fault code E201 Communication error between com. kit and outdoor unit -communication could not be established or incorrect boardversion

ID7292 WKF fault code E231 Short circuit or open contact - evaporator temperature probemotherboard outdoor unit CN43 Pin 3&4

ID7293 WKF fault code E251 Short circuit or open contact - hot gas temperature probemotherboard outdoor unit CN43 Pin 5&6

ID7294 WKF fault code E320 Short circuit or open contact - overload switch probe (OLP)motherboard outdoor unit CN43 Pin 7&8

ID7295 WKF fault code E416 Compressor stopped by overheating protection

85


ID7296Open contact -2nd mixed heating cyclereturn flow temp.

S14 Open contact - 2nd mixed heating cycle return flow temp.

ID7297Short circuit -2nd mixed heating cyclereturn flow temp.

S14 Short circuit - 2. acc. to return flow temp.

ID7298Open contact -3rd mixed heating cycleinlet temp.

S12.2 Open contact - 3. mixed heating cycle return flow temp.

ID7299Short circuit -3rd mixed heating cycleinlet temp.

S12.2 Short circuit - 3. mixed heating cycle return flow temp.

ID7300Open contact -3rd mixed heating cyclereturn flow temp.


ID7301Short circuit -3rd mixed heating cyclereturn flow temp.


ID7302Open contact -4th mixed heating cycleinlet temp.


ID7303Short circuit -4th mixed heating cycleinlet temp.


ID7304Open contact -4th mixed heating cyclereturn flow temp.


ID7305Short circuit -4th mixed heating cycleto return flow temp.


ID7306 Open contact - refrig-erant probe (I/O 2) S07.2 Open contact - refrigerant probe (I/O 2)

ID7307 Short circuit - refrig-erant probe (I/O 2) S07.2 Short circuit - refrigerant probe (I/O 2)

ID7308 WKF fault code E464 Overcurrent at the inverter module IPM (IGBT transistormodule). Check software status for the motherboard

ID7309 WKF fault code E425 Phase fault malfunction. A phase conductor is missing at thefrequency converter (can only occur with WKF 180 - other-wise, check motherboard version)

ID7310 WKF fault code E203 Communication error between motherboard (7-segment dis-play) and inverter board

ID7311 WKF fault code E466 Under-voltage or over-voltage in the intermediate DC circuit ofthe inverter.

ID7312 WKF fault code E469 Voltage probe fault in the intermediate DC circuit of theinverter. Replace inverter board if necessary

ID7313 WKF fault code E458 Implausibly high current at the current probe or fault at theBLDC motor for fan 1.

ID7314 WKF fault code E475 Fault at the BLDC motor for fan 2


86


ID7315 WKF fault code E461 Implausibly low current at the current probe or fault on theinverter board at compressor start (can occur with compressordamage)

ID7316 WKF fault code E467 Missing phase conductor on the compressor

ID7317 WKF fault code E462 Overcurrent fault (primary side) - check power supply / fusefor the EMI board

ID7318 WKF fault code E463 Compressor overtemperature (OLP). Probe value greater than115°C (below 12.7 kohm). Can be caused by a jammedexpansion valve

ID7319 WKF fault code E554 Refrigerant quantity / refrigerant loss malfunction

ID7320 WKF fault code E556 Power ratings for the com. kit board (IM) and the motherboard(AM) differ - check board versions.

ID7328Open contact -2nd mixed heating cyclereturn flow temp.

S06 Open contact - 2. mixed heating cycle return flow temp.

ID7329Short circuit - 2. mixedheating cycle returnflow temp.

S06 Short circuit - 2. mixed heating cycle return flow temp.

ID7333 Negative temp. differ-ential The temperature difference when the heat generator is active

is implausible

ID7334 Comm. signal Communication between operating unit SMT 1 and power unitSMT 1 I/O was interrupted.

Warnings


ID8102 Temperature discrep-ancy in solar cycle The collector temperature is at least 60K higher than the

storage tank temperature

ID8103 Overnight collectortemperature

A collector temperature of at least 45°C (113 °F) occurredovernight

ID8105 Target flow rate The flow rate has dropped below the target flow rate

ID8106 Low pressure Low pressure. The compressor is disabled temporarily

ID8107 Compressor status The active operating mode is safety mode because the com-pressor is active without demand

ID8108 Compressor start error Compressor start error

ID8109 EVD EVO probe fault EVD EVO probe fault

ID8110 Driver offline Driver offline

ID8111 Device offline Device offline - please check the data connection between thecontroller board and the inverter

ID8132 Anti-freeze protectionactive The anti-freeze protection function is currently active - check

the room climate mode set

ID8138 HW storage tank settemp. The hot water storage tank set temperature was reduced due

to low outside temperatures

87


ID8139 Lower application area(heating) The temperature has currently dropped below the guaranteed

application area of the external unit in heating mode

ID8140 Upper application area(heating) The guaranteed application area of the external unit in heating

mode is currently exceeded

ID8141 Lower application area(cooling) The temperature has currently dropped below the guaranteed

application area of the external unit in cooling mode

ID8142 Upper application area(cooling) The guaranteed application area of the external unit in cooling

mode is currently exceeded

ID8144 Target flow rate (I/O 2) The flow rate has dropped below the target flow rate

ID8223 SD card error (host) SD card error (host): The SD card is either not inserted cor-rectly or an error has occurred

ID8224 SD card error SD card error (CP): The SD card is not inserted or an errorhas occurred

ID8225 Dewpoint monitoring CPDew point monitoring was activated but no control panel (withintegrated humidity and temperature probe) was assigned tothe cooling cycle to calculate the dew point

ID8226 Temp. dropped belowmin. inlet temp. Temp. dropped below min. inlet temp. (or dew point) - cooling

request is suppressed

ID8227 Hygiene function:Setpoint not reached The hygiene function was cancelled due to the maximum run-

time being reached before attaining the set temperature

ID8229 2. heat generator active Due to the return temperature being too low during defrosting,the 2nd heat generator activated


88

15 Exploded view and spare parts15.1 Exploded view outdoor modules WKF/WKF-compact 70

1

2

3

4a

4b

16

5

10

7

8

9

10

11

12

13

14

15

17

18

19

20

Fig. 84: Exploded view outdoor modules WKF/WKF-compact 70

89

15.2 Spare parts list outdoor module WKF/WKF-compact 70

No. Designation WKF 70 WKF-compact 70WKF 70

WKF-compact 70

From series: 1485 1485 1486

EDP-number EDP-number EDP-number

1 Compressor 1121064 1121064 1121064

2 Laminated heat-exchanger 1121065 1121065 1121065

3 Four-way change over valve 1121066 1121066 1121066

4 Shut-off valves 1120313 1120313 1120313

5 Fan blade 1121067 1121067 1121067

6 Cover panel 1121068 1121068 1121083

7 Side panel, left 1121069 1121069 1121084

8 Fan protection guard 1121070 1121070 1121085

9 Front panel 1121071 1121071 1121086

10 Cover display 1121072 1121072 1121072

11 Side panel, right 1121073 1121073 1121087

12 Grille, rear 1121074 1121074 1121088

13 Valve mounting plate 1121075 1121075 1121075

14 Ventilatormotor 1121076 1121076 1121076

15 Evaporator/compressor set sensorHot gas/outdoor temperature 1121077 1121077 1121077

16 Electronic expansion valve 1121078 1121078 1121078

17 Main board with display 1121079 1121079 1121079

18 Inverter board 1121080 1121080 1121080

19 F1/F2 noise filter 1121081 1121081 1121081

20 Inductor 1121082 1121082 1121082

When ordering spare parts, please state the computerised part no., device number and device type (seetype plate)!


90

15.3 Exploded view outdoor modules WKF/WKF-compact 120

1

2

3

4

5

6

7

8

9

10

11

12

13

15

14

16

17

18 19

20


We reserve the right to modify the dimensions and constructional design as part of the ongoing technicalde-velopment process.

91


No. Designation WKF 120 WKF-compact 120WKF 120WKF-compact

120

Smart BVT

From series:

1296G

5001...

1296G

5001...

1295G

5001...

Smart Serv

From series:

1296G

8001...

1296G

8001...

1295G

8001...

EDP number EDP number EDP number

1 Compressor 1120450 1120450 1120450



4 Shut-off valves 1120453 1120453 1120453

5 Fan blade 1120454 1120454 1120454

6 Cover panel 1120455 1120455 1120575

7 Side panel, left front 1120456 1120456 1120576

8 Grid, front 1120338 1120338 1120577

9 Side panel, right front 1120457 1120457 1120578

10 Mounting corner, right front 1120478 1120478 1120579

11 Side panel, right rear 1120458 1120458 1120580

12 Grid, rear 1120459 1120459 1120581

13 Mounting corner, right rear 1120481 1120481 1120582

14 Fan motor 1120482 1120482 1120482

15 Evaporator sensor /compressor set sensor 1120460 1120460 1120460

15 Hot gas sensor /outdoor temperature set sensor 1120461 1120461 1120461



18 Inverter board 1120465 1120465 1120465

19 EMI board 1120466 1120466 1120466

20 Floor panel/condensate tray 1121062 1121062 1121062

Spare parts (not illustrated)

Transformer 1120462 1120462 1120462



92

15.5 Exploded view outdoor modules WKF/WKF-compact 180

18

162019

3

11

4

17

1

13

159

10

8

75

14

2

612

21


We reserve the right to modify the dimensions and constructional design as part of the ongoing technicalde-velopment process.

93


No. Designation WKF 180 WKF-compact 180WKF 180WKF-compact

180

Smart BVT

From series:

1271G

5001...

1271G

5001...

1297G

5001...

Smart Serv

From series:

1271G

8001...

1271G

8001...

1297G

8001...


1 Compressor 1120470 1120470 1120470



4 Shut-off valves 1120473 1120473 1120473

5 Fan blade 1120474 1120474 1120474

6 Cover panel 1120475 1120475 1120567

7 Side panel, left front 1120476 1120476 1120568

8 Fan protection guard 1120338 1120338 1120569

9 Side panel, right front 1120477 1120477 1120570

10 Mounting corner, right front 1120478 1120478 1120571

11 Side panel, right rear 1120479 1120479 1120572

12 Grid, rear 1120480 1120480 1120573

13 Mounting corner, right rear 1120481 1120481 1120574

14 Fan motor 1120482 1120482 1120482

15 Evaporator sensor/compressor set sensor 1120483 1120483 1120483

15 Hot gas sensor /outdoor temperature set sensor 1120484 1120484 1120484

16 Transformer 1120485 1120485 1120485



19 Inverter board 1120488 1120488 1120488

20 EMI board 1120489 1120489 1120489

21 Floor panel/condensate tray 1121062 1121062 1121062



94

15.7 Exploded view outdoor module WKF 120 Duo

1

2

3

4

5

6

7

8

9

10

11

12

13

15

14

16

17

18 19

20

Fig. 87: Exploded view outdoor unit WKF 120 Duo

We reserve the right to modify the dimens. and design as part of the ongoing techn. development process

95

15.8 Spare parts list outdoor module WKF 120 Duo

No. Designation WKF 120 Duo WKF 120 Duo

From serial number:1402F8000

1402F9000

1404F8000

1404F9000

EDP number EDP number

1 Compressor 1120450 1120450

2 Finned heat exchanger 1120451 1120451

3 Four-way changeover valve 1120452 1120452

4 Shut-off valves 1120453 1120453

5 Fan blade 1120454 1120454

6 Cover panel 1120455 1120575

7 Side panel, front left 1120456 1120576

8 Grid, front 1120338 1120577

9 Side panel, front right 1120457 1120578

10 Mounting corner, front right 1120478 1120579

11 Side panel, right rear 1120458 1120580

12 Grid, back 1120459 1120581

13 Mounting corner, back right 1120481 1120582

14 Fan motor 1120482 1120482

15 Evaporator probe / Compressor set probe 1120460 1120460

15 Hot gas probe / Outside temperature set probe 1120461 1120461

16 Electronic expansion valve 1120463 1120463

17 Motherboard with display 1120464 1120464

18 Inverter board 1120465 1120465

19 EMI board 1120466 1120466

20 Floor panel/condensate tray 1121062 1121062

Spare parts not illustrated

Transformer 1120462 1120462

When ordering spare parts, please always state the EDP number, unit number and unit type(see name plate)!


96

15.9 Exploded view outdoor unit WKF 180 Duo

18

162019

3

11

4

17

1

13

159

10

8

75

14

2

612

21

Fig. 88: Exploded view outdoor unit WKF 180 Duo

We reserve the right to modify the dimens. and design as part of the ongoing techn. development process

97

15.10 Spare parts list for the WKF 180 Duo


From serial number:1301F8000

1301F9000

1405F8000

1405F9000


1 Compressor 1120470 1120470

2 Finned heat exchanger 1120471 1120471

3 Four-way changeover valve 1120472 1120472

4 Shut-off valves 1120473 1120473

5 Fan blade 1120474 1120474

6 Cover panel 1120475 1120567

7 Side panel, front left 1120476 1120568

8 Grid, front 1120338 1120569

9 Side panel, front right 1120477 1120570

10 Mounting corner, front right 1120478 1120571

11 Side panel, right rear 1120479 1120572

12 Grid, back 1120480 1120573

13 Mounting corner, back right 1120481 1120574

14 Fan motor 1120482 1120482

15 Evaporator probe / Compressor set probe 1120483 1120483

15 Hot gas probe / Outside temperature set probe 1120484 1120484

16 Transformer 1120485 1120485

17 Electronic expansion valve 1120486 1120486

18 Motherboard with display 1120487 1120487

19 Inverter board 1120488 1120488

20 EMI board 1120489 1120489

21 Floor panel/condensate tray 1121062 1121062



98

15.11 Exploded view indoor module WKF 70/120/180

1

5

7

13

22

10

12

119

823

1418

15

166

34

19

17

2a2b

Fig. 89: Exploded view indoor module WKF 70/120/180

We reserve the right to modify the dimensions and constructional design as part of the ongoing technical-development process.

99

15.12 Spare parts list indoor modules WKF 70/120/180

No. Designation WKF 70 WKF 120 WKF 180

Smart BVT

From series:

1484G

5001...

1268G

5001...

1270G

5001...

Smart Serv

From series:

1484G

8001...

1268G

8001...

1270G

8001...


1 Front panel / cover 1120901 1120901 1120901

2a Cover monovalent / single energy source 1120902 1120902 1120902

2b Cover bivalent parallel 1120902-1 1120902-1 1120902-1

3 Control box 1120915 1120915 1120915

4 I/O module SMT 1120650 1120650 1120650

5 Control panel Smart-Control 248100 248100 248100

6 Plate heat exchanger 1120940-1 1120940-1 1120941-1

7 Safety assembly 1120010 1120010 1120010

8 Actuator bypass valve 1120913 1120913 1120913

9 Valve body bypass valve 1120913-1 1120913-1 1120913-1

10 Auxillary heater 9 kW, 400V/3~/50 Hz 260066 260066 260066

11 Actuator 3-way-valve 1120912-3 1120912-3 1120912-3

12 Valve body 3-way-valve 1120912-2 1120912-2 1120912-2

13 Ultrasonic flow rate meter 1120914 1120914 1120914

14 Primary pump indoor module 1121304 1121304 1121304

15 Actuator 3-way-valve bivalent operation 1120912-3 1120912-3 1120912-3

16 Valve body 3-way-valve bivalent operation 1120912-2 1120912-2 1120912-2

17 Terminal blocks 1120922 1120922 1120922

18 Pillar block pipe group 1120904 1120904 1120904

19 Control board Comkit 1120999 1120999 1120999

22 Ball valve for filling/drainage 1120905 1120905 1120905

23 Bleeder 1/4“ 1120059 1120059 1120059


100


No. Designation WKF 70 WKF 120 WKF 180

Smart BVT

From series:

1484G

5001...

1268G

5001...

1270G

5001...

Smart Serv

From series:

1484G

8001...

1268G

8001...

1270G

8001...


Cable loom complete indoor module 1121055 1121055 1121055

Cable set Comkit 1120309 1120309 1120309

SD card (act. software without Smart Count andSmart Web) *) 1120985-1 1120985 1120985

Coding resistor 1121089 1121052 1121053

Pt1000 1,5m long (S15) 1120930 1120930 1120930

Transformer for Comkit board 1120935 1120935 1120935

Assembly auxiliary heater 9 kW including flow ratemeter 1120942 1120942 1120942

*) When replacing the SD card always replace both cards and ordered according to 2 cards

101

15.13 Exploded view indoor modules WKF-compact 70/120/180

2c

25

2a2b

7

1

9 12

15

23

14

1011

1316

18 17

20 3

4

21

22 5 624

826/27

Fig. 90: Exploded view indoor modules WKF-compact 70/120/180



102

15.14 Spare parts list indoor modules WKF-compact 70/120/180

No. DesignationWKF-compact

70WKF-compact

120WKF-compact

180

Smart BVT

From series:

1484G

5001...

1268G

5001...

1270G

5001...

Smart Serv

From series:

1484G

8001...

1268G

8001...

1270G

8001...


1 Front panel / cover 1120901 1120901 1120901

2a Cover monovalent / single energy source 1120902 1120902 1120902

2b Cover bivalent parallel 1120902-1 1120902-1 1120902-1

2c Cover front 1120902-2 1120902-2 1120902-2

3 Floor panel 1120903 1120903 1120903

4 Side plate storage tank 1120906 1120906 1120906

5 Control box 1120915 1120915 1120915

6 I/O module SMT 1120650 1120650 1120650

7 Control panel Smart-Control 248100 248100 248100

8 Plate heat exchanger 1120940-1 1120940-1 1120941-1

9 Safety assembly 1120010 1120010 1120010

10 Actuator bypass valve 1120913 1120913 1120913

11 Valve body bypass valve 1120913-1 1120913-1 1120913-1

12 Auxillary heater 9 kW, 400V/3~/50 Hz 260066 260066 260066

13 Actuator 3-way-valve 1120912-3 1120912-3 1120912-3

14 Valve body 3-way-valve 1120912-2 1120912-2 1120912-2

15 Ultrasonic flow rate meter 1120914 1120914 1120914

16 Primary pump indoor module 1121304 1121304 1121304

17 Actuator 3-way-valve bivalent operation 1120912-3 1120912-3 1120912-3

18 Valve body 3-way-valve bivalent operation 1120912-2 1120912-2 1120912-2

19 Terminal blocks 1120922 1120922 1120922

20 Domestic water storage tank WKT 300 270500 270500 270500

21 Pillar block pipe group 1120904 1120904 1120904

22 Control board Comkit 1120999 1120999 1120999

23 Ball valve for filling/drainage 1120905 1120905 1120905

24 Bleeder 1/4“ 1120059 1120059 1120059

25 Front panel storage tank 1120606 1120606 1120606

26 Victim anode / rod 1120230 1120230 1120230

27 Victim anode / chain 1120121 1120121 1120121

103


DesignationWKF-compact

70WKF-compact

120WKF-compact

180

Smart BVT

From series:

1268G

5001...

1268G

5001...

1270G

5001...

Smart Serv

From series:

1268G

8001...

1268G

8001...

1270G

8001...


Cable loom complete indoor module 1121055 1121055 1121055

Cable set Comkit 1120309 1120309 1120309

Protection anode, chain anode 1120121 1120121 1120121

SD card (act. software without Smart Count andSmart Web) *) 1120985-1 1120985 1120985

Coding resistor 1121052 1121053

Pt1000 1,5m long (S15) 1120930 1120930 1120930

Transformer for comkit board 1120935 1120935 1120935

Assembly auxiliary heater 9 kW including flow ratemeter 1120942 1120942 1120942

*) When replacing the SD card always replace both cards and ordered according to 2 cards


104

Parts and fittings, set (not illustrated)

DesignationWKF/WKF-compact

70/120/180

EDP number

Fittings set, complete 260008

Immersion sensor 1120930

Dirt trap 1120013

Ball valve 1“, red 1120986

Ball valve 1“, blue 1120987

Safety assembly 1120010

External sensor 1120014-1

Corrugated tube 1 WT connection on top (WP-VL) = 540mm 259050-1

Corrugated tube 2 WT connection on bottom (WP-RL) = 1340mm 259050-2

Corrugated tube 3 WW connection on top = 1250mm 259050-3

Corrugated tube 4 circ. connection on middle = 1600mm 259050-4

Corrugated tube 5 KW connection on bottom = 2400mm 259050-5

Flat gasket (outside: 39mm x inside: 27mm x thickness: 2mm) 259050-6

Flat gasket (outside: 30mm x inside: 21mm x thickness: 2mm) 259050-7

When ordering spare parts, please state the computerised part no., device number and device type(see type plate)!

105

15.15 Exploded view indoor modules WKF 120/180 Duo

1

57

1322

10

23

6a

4

17

2

419

19

6b

8 9

14

14

13

17

18

3

3

6

Fig. 91: Exploded view indoor modules WKF 120/180 Duo



106

15.16 Spare parts list indoor modules WKF 120/180 Duo


Smart Serv

From serial number:1401F8000 1300F8000


1 Front panel / cover 1120901 1120901

2 Lid 1120902 1120902

3 Switching cabinet 1120915 1120915

4 I/O module SMT 1120650 1120650

5 Smart Control panel 248100 248100

6 Plate heat exchanger raw 1120940 1120941

6a Plate heat exchanger soldered / isolated above 1120940-1 1120941-1

6b Plate heat exchanger soldered / isolated down 1120940-2 1120941-2

7 Safety assembly 1120010 1120010

8 Bypass valve servo motor 1120912-3 1120912-3

9 Bypass valve valve body 1120912-2 1120912-2

10 Auxiliary heater 9 kW 260066 260066

13 Ultrasonic flow rate meter 1120914 1120914

14 Primary pump indoor module 1121304 1121304

17 Terminal strips 1120922 1120922

18 Pipe assembly support block 1120904 1120904

19 Com-Kit control board 1120999 1120999

22 Ball valve for filling/drainage 1120905 1120905

23 Bleeder, 1/4" 1120059 1120059

Spare parts not illustrated

Complete wiring harness, indoor unit 1121055 1121055

SD card (act. software without Smart Web,SmartCount) *) 1120985 1120985

Coding resistor, Master (upper I/O module) 1121052 1121053

Coding resistor, Slave (lower I/O module) 1121054 1121054

Transformer 1120935 1120935

*) When replacing the SD card always replace three cards and ordered according to 3 cards


107

16 General termsAnnual power input factorThe annual power input factor indicates the powerinput (e.g. electrical energy) required in order toachieve a certain benefit (e.g. heating energy). Theannual power input factor includes the energyrequired for auxiliary drives.

Bivalent modeThe heat pump provides the entire heating energydown to a predetermined outdoor temperature(e.g. -3°C). If the temperature drops below thisvalue, the heat pump switches off and the secon-dary heating appliance takes over the heating, e.g.a heating boiler.

Coefficient of performance

The current ratio of thermal output produced by theheat pump to the consumed electrical power isreferred to as the coefficient of performance, asmeasured under standardised boundary conditionsaccording to EN 255 / EN 14511. A coefficient ofperformance of 4 means that a usable thermaloutput amounting to 4-times the electrical powerconsumption is available.

Compressor (condenser)Unit designed for the mechanical conveyance andcompression of gasses. Compression serves tosignificantly increase the pressure and tempera-ture of the medium.

CondenserHeat exchanger on a refrigerant plant which lique-fies a working medium in order to transmit heat toits environment (e.g. the heating system).

DefrostAt outdoor temperatures below 5°C it is possiblethat ice may form on the evaporators of air/waterheat pumps. The removal of this ice is referred toas defrosting and is undertaken by supplying heat,either regularly or as requirements dictate. Air/water heat pumps with circuit reversal are distin-guished by their requirements-based, quick andenergy-efficient defrosting system.

Energy supply company switchingCertain energy supply companies offer special tar-iffs for the operation of heat pumps.

When switching off the power supply compa-nies only on the barrier is in contact onlyrequirement of a heat source (heat pump) isblocked. Be switched off at monoenergeticoperation, the power supply of the electricheating element with.

EvaporatorHeat exchanger on a refrigerant plant which usesthe evaporation of a working medium in order toextract heat from its environment at low tempera-tures (e.g. the outdoor air).

Expansion valveHeat pump component for lowering the condensingpressure on the vapour tension. In addition, theexpansion valve regulates the quantity of injectedrefrigerant in relation to the evaporator load.

Heat carrierLiquid or gas medium (e.g. water, brine or air), inwhich heat is transported.

Heat pump systemA heat pump system consists of a heat pump anda heat source system. For brine and water/waterheat pumps, the heat source system must bemade available separately.

Heat sourceMedium from which the heat pump derives heat, inother words, soil, air and water.

Heating outputFlow of heat emitted from the liquefier to the envi-ronment. The heating output is the sum of the elec-trical power consumed by the condenser and theheat flux obtained from the environment.

InverterPower regulator which serves to match the speedof the compressor motor and the speed of theevaporator fans to the heating requirement.


108

Limit temperature / bivalence pointOutdoor temperature where the secondary heatingappliance cuts in under bivalent operation.

Monovalent modeIn this mode, the heat pump is the sole heatingappliance in the building all year round. Monova-lent mode is primarily used in combination withbrine/water and water/water heat pumps.

NoiseNoise is transmitted in media such as air or water.Essentially there are two types of noise, airbornesound and solid-borne sound. Airborne sound istransmitted entirely via the air. Solid-borne soundis transmitted in solid materials or liquids and isonly partially radiated as airborne sound. Theaudible range of sound lies between 20 and20,000 Hz.

RefrigerantThe working medium used in a refrigerant plant,e.g. heat pump, is referred to as the refrigerant.The refrigerant is a liquid which is used for thermaltransfer in a refrigeration plant and which is able toabsorb heat by changing its state at low tempera-tures and low pressures. A further change of stateat higher temperatures and higher pressure servesto dissipate this heat.

Refrigerating capacityHeat flux extracted from the environment by theevaporator (air, water or soil).

Regulations and guidelinesThe erection, installation and commissioning ofheat pumps has to be undertaken by qualified spe-cialist engineers. In doing so, various standardsand directives are to be observed.

Seal inspectionSystem operators are obliged to ensure the pre-vention of refrigerant leakage in accordance withthe directive on substances that deplete the ozonelayer (EC 2037/2000) and the Regulation on Cer-tain Fluorinated Greenhouse Gases (EC842/2006). In addition, a minimum of one annualservice and inspection must be carried out, as wellas a sealing test for refrigerating plants with arefrigerant filling weight over 3 kg.

Seasonal performance factorThe seasonal performance factor relates to theratio of heat content delivered by the heat pumpsystem to the supplied electrical energy in oneyear. It may not be compared to the performancenumber. The seasonal performance factorexpresses the reciprocal of the annual power inputfactor.

Single energy-source modeThe heat pump covers a large proportion of therequired thermal output. On a few days per year anelectrical heating coil supplements the heat pumpunder extremely low outdoor temperatures. Dimen-sioning of the heat pump for air/water heat pumpsis generally based on a limit temperature (alsoknown as balance point) of approx. -5 °C.

Sound pressure levelThe sound pressure level is a comparable charac-teristic quantity for the radiated acoustic output of amachine, for example, a heat pump. The noiseemission level at certain distances and acousticenvironments can be measured. The standard isbased on a sound pressure level given as a nom-inal noise level.

Split AC unitDesign where one part of the device is positionedoutdoors and the other inside the building. Bothunits are connected to each other by a refrigerantpipe.

Storage tankThe installation of a hot-water storage tank is gen-erally recommended in order to extend the runningtime of the heat pump under low heat require-ments. A storage tank is required for air/water heatpumps in order to bridge off-periods.

109

17 IndexAAdding refrigerant . . . . . . . . . . . . . . . . . . . . . . . 75Air exchange frequency . . . . . . . . . . . . . . . . . . . 47Average condition . . . . . . . . . . . . . . . . . 10, 13, 16

CCharging pump, motor protection . . . . . . . . . . . 24Charging pump, pump-characteristic curves . . . 24Coefficient of performance . . . . . . . . . . . . . . 9, 12Colder condition . . . . . . . . . . . . . . . . . . 10, 13, 16Condensate draining and ensured discharge . . 63Controls, overview . . . . . . . . . . . . . . . . . . . . . . . 77Cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . 50Cooling of the Heat Pump . . . . . . . . . . . . . . . . . 70COP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 12, 15

DDisposal of equipment . . . . . . . . . . . . . . . . . . . . . 7Dynamic cooling . . . . . . . . . . . . . . . . . . . . . . . . 50

EEnsured discharge in the event of leakage . . . . 64Environmental protection . . . . . . . . . . . . . . . . . . . 7

FFunction of the keys . . . . . . . . . . . . . . . . . . . . . 77

GGreenhouse gas according to Kyoto protocol 9, 12

HHeat pump

Characteristics of inverter heat pumps . . . . . 48Function of the heat pump . . . . . . . . . . . . . . 46Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Layout example . . . . . . . . . . . . . . . . . . . . . . 47

Heating capacity diagramm . . . . . . . . . . . . . . . . 48Heating capacity figure . . . . . . . . . . . . . . . . . . . 15Heating coil, function . . . . . . . . . . . . . . . . . . . . . 68

IInfiltration heat-loss . . . . . . . . . . . . . . . . . . . . . . 47Installation

Indoor module . . . . . . . . . . . . . . . . . . . . . . . 58Outdoor module . . . . . . . . . . . . . . . . . . . . . . 60Transversely reinforced strip footing . . . . . . . 63

Installation cooling . . . . . . . . . . . . . . . . . . . . . . . 70Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

LLeak testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

MMinimum distances for the outdoor modules . . . 62Mounting

Indoor module . . . . . . . . . . . . . . . . . . . . . . . 58

OOrdering spare parts . . . . . . . . . . . . . . . . . . 96, 98Overall sound pressure levels . . 25, 26, 27, 28, 29

PPassive cooling . . . . . . . . . . . . . . . . . . . . . . . . . 50Pipe outlets on indoor unit, spacing . . . . . . . . . . 21Pipe sockets on indoor unit, arrangement . . . . . 21Pipe-outlet spacing . . . . . . . . . . . . . . . . . . . 18, 20Pipe-socket arrangement . . . . . . . . . . . . . . 18, 20Propellant in accordance with Kyoto Protocol . . 15Pumping down to vacuum . . . . . . . . . . . . . . . . . 73

SSafety

Dangers of failure to observe the safetynotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Identification of notes . . . . . . . . . . . . . . . . . . . 5Notes for inspection . . . . . . . . . . . . . . . . . . . . 6Notes for installation . . . . . . . . . . . . . . . . . . . . 6Notes for maintenance . . . . . . . . . . . . . . . . . . 6Personnel qualifications . . . . . . . . . . . . . . . . . 5Safety notes for the operator . . . . . . . . . . . . . 6Safety-conscious working . . . . . . . . . . . . . . . . 5Unauthorised modification . . . . . . . . . . . . . . . 6Unauthorised replacement part manufacture . 6

Sound intensity . . . . . . . . . . . . . 25, 26, 27, 28, 29Spare parts order . . . . . . . . . . 90, 92, 94, 100, 107System layout . . . . . . . . . . . . . . 52, 53, 54, 55, 56

TThermal transmission coefficient . . . . . . . . . . . . 47Transmission-heat requirement . . . . . . . . . . . . . 47Troubleshooting

Error messages on the outdoor modules . . . 80general Troubleshooting . . . . . . . . . . . . . . . . 79messages on the Smart-Control . . . . . . . . . . 82

UUnit dimensions

Indoor modules . . . . . . . . . . . . . . . . . . . . . . 21

WWarmer condition . . . . . . . . . . . . . . . . . 10, 13, 16Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6


110

ConsultingThanks to intensive training, our consultants are always completely up-to-date in terms of technical knowledge. This has given us the reputation of being more than just an excellent, reliable supplier: REMKO, a partner helping you find solutions to your problems. DistributionREMKO offers not just a well established sales network both nationally and internationally, but also has exceptionally highly-qualified sales specialists. REMKO field staff are more than just sales representatives: above all, they must act as advisers to our customers in air conditioning and heating technology. SFlbCustomer ServiceOur equipment operates precisely and reliably. However, in the event of a fault, REMKO customer service is quickly at the scene. Our comprehensive network of experienced dealers always guarantees quick and reliable service.

REMKO INTERNATIONAL… and also right in your neighbourhood!Make use of our experience and advice

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ata!REMKO GmbH & Co. KG

Air conditioning and heating technology

Im Seelenkamp 12 D-32791 Lage Postfach 1827 D-32777 LageTelephone +49 5232 606-0Telefax +49 5232 606-260E-mail [email protected] www.remko.de

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