2 1 . 0 8 – 5 5 2 3 4 0 7 _ 0 0T r a n s l a t i o n o f O r i g i n a l i n s t r u c t i o n s

w w w . a e r m e c . c o m

Technical manual

60Hz

ANKI 020-045

� REVERSIBLE AIR/WATER HEAT PUMPC o o l i n g c a p a c i t y 1 . 6 - 3 . 2 t o n

H e a t i n g c a p a c i t y 2 0 , 0 9 8 - 4 0 , 7 4 8 B T U / h

Dear Customer,Thank you for wanting to learn about a product Aermec. This product is the result of many years of experience and in-depth engineering research, and it is built using top quality materials and advanced technologies.The manual you are about to read is meant to present the product and help you select the unit that best meets the needs of your system.However, please note that for a more accurate selection, you can also use the Magellano selection program, available on our website.Aermec Aermec, always attentive to the continuous changes in the market and its regulations, reserves the right to make all the changes deemed necessary for improving the product, including technical data.Thank you again.

AERMEC S.p.A.

All specifications are subject to change without prior notice. Although every effort has been made to ensure accuracy, Aermec shall not be held liable for any errors or omissions.

This marking indicates that this product should not be disposed with other household wastes throughout the EU. To prevent possible harm to the envi-ronment or human health from uncontrolled disposal of Waste Electrical and Electronic Equipment (WEEE), please return the device using appropriate collection systems, or contact the retailer where the product was purchased. Please contact your local authority for further details. Illegal dumping of the product by the user entails the application of administrative sanctions provided by law.

COMPANY CERTIFICATIONS

SAFETY CERTIFICATIONS

21.08 – 5523407_00 5

TABLE OF CONTENTS

1. Fields of the range .............................................................................p. 6

Operating field ........................................................................................p. 6Technical hot water production ........................................................p. 6Versions ......................................................................................................p. 6Version with Integrated hydronic kit...............................................p. 6

2. Configurator ..........................................................................................p. 6

3. Unit components description .....................................................p. 7

Refrigerant circuit ...................................................................................p. 7Hydraulic circuit (version °) .................................................................p. 7Hydraulic circuit (version X) ................................................................p. 7Structure and fans ..................................................................................p. 7Control and safety components .......................................................p. 7Electrical control and power panel ..................................................p. 7

4. Main hydraulic circuits ....................................................................p. 8

Version ° .....................................................................................................p. 8Version X ....................................................................................................p. 9System example: heating/cooling + domestic hot water .... p. 10

5. Main cooling refrigerant layout .............................................. p. 11

6. Accessories .......................................................................................... p. 12

Factory fitted accessories ................................................................. p. 12Accessories compatibility ................................................................. p. 12

7. Selection criteria of the heat exchangers according to the place of installation of the unit .......... p. 13

Sea coast environments .................................................................... p. 13Industrial environments ................................................................... p. 13Mix of seaside and industrial environments ............................. p. 13Urban environments .......................................................................... p. 13Rural environments ............................................................................ p. 13Additional tips ...................................................................................... p. 13

8. Performance specifications ....................................................... p. 14

Part load IPLV ........................................................................................ p. 14

9. General technical data ................................................................. p. 15

Electric data ........................................................................................... p. 15Dimensions and weights .................................................................. p. 16

10. Minimum technical spaces ........................................................ p. 16

11. Operating range............................................................................... p. 17

Cooling mode ....................................................................................... p. 17Heating mode range .......................................................................... p. 17

12. Pressure drops ................................................................................... p. 18

13. Pumps static pressure ................................................................... p. 19

14. System water content ................................................................... p. 20

Minimum system water content ................................................... p. 20Maximum system water content .................................................. p. 20

15. Expansion vessel setting ............................................................. p. 20

16. Correction factors ........................................................................... p. 21

Corrective factors for Average water temperatures different from nominal values ........................................................ p. 21Fouling: deposit corrective factors [K*m²]/[W] ........................ p. 21

17. Glycol ...................................................................................................... p. 21

Ethylene glycol ..................................................................................... p. 21Propylene glycol .................................................................................. p. 21

18. Sound data .......................................................................................... p. 22

Sound data calculated in cooling mode .................................... p. 22Sound data calculated in heating mode ................................... p. 22

6 21.08 – 5523407_00

1 FIELDS OF THE RANGE

Reversible air/water heat pump for air conditioning systems with chilled water pro-duction for cooling rooms and hot water for heating services, suitable for connec-tion with small or medium users.It's optimised for use in heating mode, and can be combined not only with low-tem-perature emission systems such as floor heating or fan coils, but also conventional radiators.Equipped with rotary inverter compressors, inverter fans, finned coils in copper with aluminium fins, plate heat exchanger on the system side.The base, the structure and the panels are made of galvanized steel treated with polyester paint RAL 9003.

OPERATING FIELD

Works at full load up to - 4°C (outside air temperature in winter), and up to 114.8140 °C in summer with the possibility to produce hot water up to 140 °F

TECHNICAL HOT WATER PRODUCTION

The technical water, thanks to an intermediate exchanger (not supplied), can guar-antee the production of domestic hot water (the use of a storage tank not supplied is recommended).

� See a system example (chapter  System example: heating/cooling + domestic hot water p. 10).

VERSIONS

° StandardX With inverter pump

VERSION WITH INTEGRATED HYDRONIC KIT

If a plug&play solution is required, there's also a version with an integrated hy-dronic unit containing the main hydraulic components including the water filter (supplied).

� The water filter must be installed to validate the warranty.

2 CONFIGURATOR

Field Description1,2,3,4 ANKI

5,6,7 Size020, 025, 040, 045

8 ModelH Heat pump

9 Version° Standard

X With inverter pump10 Heat recovery

° Without heat recovery11 Coils

° Copper-aluminiumV Copper pieps-Coated aluminium fins

12 FansJ Inverter

13 Operating field° Electronic thermostatic expansion valve (1)

14 Evaporator° Standard

15 Power supply5 230V ~ 60Hz

16 Field for future development

(1) Water produced up to 17.6 °F

21.08 – 5523407_00 7

3 UNIT COMPONENTS DESCRIPTION

REFRIGERANT CIRCUIT

Compressors

High efficiency hermetic rotary compressors, driven by a brushless DC motor with internal thermal protection.

System side heat exchanger

Brazed plate heat exchanger in stainless steel. It is externally insulated with closed cell neoprene anti-condensation material.They are equipped with an electric anti-freeze resistance (KR2 accessory).

Source side heat exchanger

Finned coil heat exchanger with copper tubes and aluminium louvers adequately spaced to ensure high efficiencies.

Reversing valve

4-way cycle inversion valve. Reverses the refrigerant fluid flow.

Filter drier

Hermetic-mechanical made of hygroscopic material, able to withhold impurities and any traces of humidity present in the cooling circuit.

One-way valve

They allow one-way flow of the refrigerant.

Electronic thermostatic expansion valve

Compared with a mechanical thermostatic valve, the electronic one offers better overheating control so the evaporator is used more efficiently in all conditions, thereby boosting machine output.Its use in comfort dedicated applications allows to make substantial benefits espe-cially in the presence of varying loads, because it allows you to maintain the maxi-mum efficiency with any external air temperature.In industrial applications, where there is often a need to make temperature changes in a wide range of environmental conditions, the use of the electronic valve is ideal because it avoids the need for continuous calibration, adapting the system to dif-ferent load conditions and hence making it independent.

Liquid separator

Located in the intake line, it protects the compressor from any liquid returns.

Liquid accumulator

Compensates for the difference in volume between the finned coil and the plate heat exchanger, retaining the excessive liquid.

HYDRAULIC CIRCUIT (VERSION °)

Flow switch

Checks that water is circulating in the heat exchanger, and stops the unit if this is not the case.

Pressure relief valve

Calibrated at 6 Bar and drain pipe, it activates by discharging overpressure if abnor-mal pressure occurs.

HYDRAULIC CIRCUIT (VERSION X)

Pump

They provide useful static pressure to the system, excluding the unit pressure drops.

Expansion vessel

Membrane type precharged with nitrogen.

STRUCTURE AND FANS

Structure

Supporting structure for outdoor installation, in hot-dipped galvanized sheet steel, with RAL 9003 polyester powder coating.Designed to ensure the maximum access for service and maintenance.

Inverter fans

Continuous speed modulation based on condensing pressure.High-efficiency brushless motor for greater energy savings.

CONTROL AND SAFETY COMPONENTS

High pressure switch

With fixed calibration, placed on the high pressure side of the cooling circuit, it in-hibits the operation of the compressor if abnormal work pressure occurs.

� Automatic reset

High pressure transducer

Placed on the high pressure side of the cooling circuit, signals the work pressure to control board, generating a pre-warning in case abnormal pressure occurs.

Low pressure transducer

Placed on low pressure side of cooling circuit, it signals the work pressure to the control board, generating a pre-warning in case abnormal pressure occurs.

Safety valvs for cooling circuit

Placed in the high and low pressure branches, they have the function of protecting the liquid accumulation tank and the liquid separator from the pressure increase beyond dangerous levels.

ELECTRICAL CONTROL AND POWER PANEL

Complete with:— electronic controller— All numbered cables

Controller keypad

Allows complete control of the unit.For further information refer to the user manual.

Electronic controller

The microprocessor controls features cutting edge functions and proprietary ad-justments.Beside the control buttons, the keyboard features an LCD display which allows to consult and adjust the unit with a multilevel menu and language option setting. It controls:— The temperature used by the system for cooling / heating the rooms. The man-

agement of the various temperatures is carried out automatically based on the operating conditions of the machine and external inputs.

— Management and alarm log to have always a prompt diagnosis of the unit op-eration.

— Creation of operation time periods required for efficient programming— A self-adaptive logic is used to defrost. This logic allows you to adjust the num-

ber of defrosts in order to increase efficiency.

� For further information refer to the user manual.

8 21.08 – 5523407_00

4 MAIN HYDRAULIC CIRCUITS

VERSION °

Components as standard1 Plate heat exchanger2 Water temperature sensors (IN/OUT)3 Pressure relief valve4 Flow switch5 Water filter (as standard)Components not provided and responsibility of the installer6 Anti-vibration joints

7 Pump8 Air drain valve9 Storage tank10 Antifreeze electric heater11 Expansion vessel12 Pressure gauge13 Flow shut-off valves

1

2

2

46

6

13

13

9

10

8

11

5 7

312

Water characteristics

System: Chiller with plate heat exchangerPH 7,5 - 9Total hardness 4,5 - 8,5 °dHTemperature < 65 °COxygen content < 0,1 ppmMax. glycol amount 50 %Phosphates (PO₄) < 2ppmManganese (Mn) < 0,05 ppmIron (Fe) < 0,3 ppmAlkalinity (HCO₃) 70 - 300 ppmChloride ions (Cl-) < 50 ppmSulphate ions (SO₄) < 50 ppmSulphide ion (S) NoneAmmonium ions (NH₄) NoneSilica (SiO₂) < 30 ppm

21.08 – 5523407_00 9

VERSION X

Components as standard1 Plate heat exchanger2 Water temperature sensors (IN/OUT)3 Pump4 Pressure relief valve5 Flow switch6 Expansion vessel7 Water filter (as standard)

Components not provided and responsibility of the installer8 Anti-vibration joints9 Air drain valve10 Storage tank11 Antifreeze electric heater12 Pressure gauge13 Flow shut-off valves

1

2

2

5

13

13

10

11

9

73

412

6

8

8

Water characteristics

System: Chiller with plate heat exchangerPH 7,5 - 9Total hardness 4,5 - 8,5 °dHTemperature < 65 °COxygen content < 0,1 ppmMax. glycol amount 50 %Phosphates (PO₄) < 2ppmManganese (Mn) < 0,05 ppmIron (Fe) < 0,3 ppmAlkalinity (HCO₃) 70 - 300 ppmChloride ions (Cl-) < 50 ppmSulphate ions (SO₄) < 50 ppmSulphide ion (S) NoneAmmonium ions (NH₄) NoneSilica (SiO₂) < 30 ppm

10 21.08 – 5523407_00

SYSTEM EXAMPLE: HEATING/COOLING + DOMESTIC HOT WATER

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Radi

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21.08 – 5523407_00 11

5 MAIN COOLING REFRIGERANT LAYOUT

1 Finned coil2 4-way cycle inversion valve3 High pressure switch4 One-way valve5 High pressure transducer6 Compressor7 Low pressure transducer

8 Electronic expansion valve temperature probe9 Pressure relief valve10 Liquid separator11 Plate heat exchanger12 Filter drier13 Liquid accumulator14 Electronic thermostatic expansion valve

1

3

2

4

5

6

7

8

10

9 11

912

13

14

4

4

12 21.08 – 5523407_00

6 ACCESSORIES

MOD485K: RS-485 simplified interface for supervision systems with MODBUS pro-tocol.PGD1: Allows you to control the unit at a distance.PR3: Simplified remote panel. This makes it possible to carry out the unit's basic controls with the signalling of alarms. Can be made remote with shielded cable up to 150 m.

VT: Anti-vibration supports.BDX: Condensate drip.

FACTORY FITTED ACCESSORIES

KR: Anti-freeze electric heater for the plate heat exchanger.

ACCESSORIES COMPATIBILITY

Model Ver 020 025 040 045MOD485K °,X • • • •PGD1 °,X • • • •PR3 °,X • • • •

Antivibration

Ver 020 025 040 045°,X VT9 VT9 VT9 VT9

Condensate drip

Ver 020 025 040 045°,X BDX30 BDX30 BDX30 BDX30

Antifreeze electric heater

Ver 020 025 040 045°,X KR2 KR2 KR2 KR2

A grey background indicates the accessory must be assembled in the factory

21.08 – 5523407_00 13

7 SELECTION CRITERIA OF THE HEAT EXCHANGERS ACCORDING TO THE PLACE OF INSTALLATION OF THE UNIT

Potentially corrosive outdoor environments include areas near coasts, industrial sites, densely populated urban areas, certain rural areas or a combination of these environments. Other factors, including the presence of effluent gas, sewage vents or open sewage systems and the exhaust of diesel engines can all be harmful for the microchannel coil.The purpose of this application guide is to provide general information on the mechanisms of corrosion and corrosive environments.

� The guide provides advice on the applications, however, you cannot anticipate all the details concerning the application in the actual destination place of our prod-ucts in this document. In addition, the requirements relating to the service life of a potential product are not known. For these reasons, Aermec prefers to work closely with the customers to fully understand the requirements of the project and the op-erating environments. Aermec assumes no liability for the completeness and cor-rectness of the information contained herein.

SEA COAST ENVIRONMENTS

Coastal and marine environments are distinguished by an abundance of sodium chloride (salt) transported by sea spray, vapour or mist. It is important to note that salt water can be transported many miles by wind and tidal currents. It is not un-common for contamination due to salt water to occur 10 km away from the coast. For this reason, equipment may have to be protected from the electrolytes of ma-rine origin.

INDUSTRIAL ENVIRONMENTS

Industrial applications are associated with several different conditions that can po-tentially produce a variety of atmospheric emissions. Contaminants from sulphur and nitrogen oxides are most often linked to high-den-sity urban environments. The combustion of coal oils and fuel oils releases sulphur oxides (SO2, SO3) and nitrogen oxides (NOx) into the atmosphere. These gases ac-cumulate in the atmosphere and return to the ground as acid rain or low pH dew. Industrial emissions are not only potentially corrosive: many industrial dust parti-cles can be loaded with harmful components such as metal oxides, chlorides, sul-phates, sulfuric acid, carbon and carbon compounds. In the presence of oxygen, water or high humidity environments, these particles can be extremely corrosive and in several forms, including general and localised corrosion, such as pitting and anthill.

MIX OF SEASIDE AND INDUSTRIAL ENVIRONMENTS

Sea mist loaded with salt, associated with the harmful emissions of an industrial environment, poses a serious risk.The combined effects of the salt loaded mist and in-dustrial emissions accelerate corrosion.Within the manufacturing plants, corrosive gas may result from the processing of chemicals or by the typical industrial processes used in manufacturing.Potential contributing factors that must be considered are open sewers, vent open-ings, diesel exhaust, heavy traffic emissions, landfills, exhaust from aircraft engines and ocean-going vessels, industrial production, chemical treatment structures (cooling towers located nearby) and fossil fuel electrical installations.

URBAN ENVIRONMENTS

Densely populated areas generally have high levels of emissions of motor vehicles and increases in duel use for heating buildings.Both conditions increase the concentration of sulphur oxides (SOx) and nitrogen oxide (NOx). Inside a building, the gas can be produced from cleaning agents, ciga-rette smoke, process operations and data centre printers.Corrosive atmospheres may even occur in some closed areas, such as facilities with swimming pools and water treatment systems.The severity of corrosion in this environment is influenced by the levels of pollution, which in turn depend on several factors, including the population density of the area.Each piece of equipment installed in places immediately near exhaust of diesel en-gines, exhaust chimneys of incinerators, chimneys of fuel-powered boilers or areas exposed to emissions from fossil fuels, must be considered an industrial application.

RURAL ENVIRONMENTS

Rural environments may contain high levels of pollution from ammonia and nitro-gen products from animal excrements, fertilizers and high concentration of diesel engine exhaust. The approach to these environments must be entirely similar to that of industrial environments.Local weather conditions have a major role in the concentration or disper-sion of outdoor gaseous contaminants. Thermal inversions can trap pollutants, thereby producing serious air pollution problems.

ADDITIONAL TIPS

Although each of the above corrosive environments can be detrimental to the life of the heat exchanger, several additional factors must be considered before choos-ing the final design. The local climate surrounding the site of application may be influenced by the pres-ence of:— wind— dust— road salts— swimming pools— diesel engines discharge / traffic— Localised mist— cleaning agents for domestic use— Sewage system outlets— many other separate contaminantsEven within 3-5 km from these particular local climates a normal environment with moderate characteristics can be classified as an environment that requires preven-tive corrosion measures. When these factors are directly and immediately part of the environment, their influence is further aggravating.

Application TipSevere environments O, R, S V colisModerate environments Standard coil ° (microchannel)

14 21.08 – 5523407_00

8 PERFORMANCE SPECIFICATIONS

ANKI - (°)

Size 020 025 040 045Cooling performances 54.0 °F / 44.0 °F (1)Cooling capacity ton 1.6 2.0 2.6 3.2Input power kW 1.9 2.6 3.0 4.1Cooling total input current A 8.5 11 13 18EER BTU/W 10.20 9.22 10.39 9.30IPLV BTU/W 17.67 17.09 16.51 16.79Water flow rate system side gpm 4.0 4.8 6.2 7.7Pressure drop system side ft H₂O 5.21 7.36 4.22 6.22Heating performance * °F / 120.0 °F (2)Heating capacity BTU/h 20,098 25,328 30,842 40,748Input power kW 2.0 2.6 3.3 4.4Heating total input current A 8.9 11 14 19COP kW/kW 2.92 2.88 2.77 2.74Water flow rate system side gpm 4.0 (3) 4.8 (3) 6.2 (3) 7.7 (3)Pressure drop system side ft H₂O 5.21 7.36 4.22 6.22

(1) Reference conditions: AHRI std 550/590 I-P; Service side water 54.0°F / 44.0°F; Outside air 95°C(2) Reference conditions: AHRI std 550/590 I-P; Service side water * °F / 120.0°F; Outside air 47°C(3) Water flow rate as in cooling mode

ANKI - (X)

Size 020 025 040 045Cooling performances 54.0 °F / 44.0 °F (1)Cooling capacity ton 1.6 2.0 2.6 3.2Input power kW 2.0 2.7 3.1 4.2Cooling total input current A 9.3 12 14 19EER BTU/W 9.72 8.87 10.00 9.03IPLV BTU/W 17.67 17.09 16.51 16.79Water flow rate system side gpm 4.0 4.8 6.2 7.7Pressure drop system side ft H₂O 28.94 26.95 30.12 27.68Heating performance * °F / 120.0 °F (2)Heating capacity BTU/h 20,098 25,328 30,842 40,748Input power kW 2.1 2.7 3.4 4.5Heating total input current A 9.7 12 15 20COP kW/kW 2.79 2.77 2.67 2.67Water flow rate system side gpm 4.0 (3) 4.8 (3) 6.2 (3) 7.7 (3)Pressure drop system side ft H₂O 28.94 26.95 30.12 27.68

(1) Reference conditions: AHRI std 550/590 I-P; Service side water 54.0°F / 44.0°F; Outside air 95°C(2) Reference conditions: AHRI std 550/590 I-P; Service side water * °F / 120.0°F; Outside air 47°C(3) Water flow rate as in cooling mode

PART LOAD IPLV

Size 020 025 040 045Part load IPLV100 % °,X BTU/W 10.20 9.22 10.39 9.3075 % °,X BTU/W 14.74 13.74 13.88 13.4050 % °,X BTU/W 19.53 19.01 18.09 18.7725 % °,X BTU/W 21.77 22.35 20.50 21.75

21.08 – 5523407_00 15

9 GENERAL TECHNICAL DATA

Size 020 025 040 045CompressorType °,X type Rotary Rotary Rotary RotaryCompressor regulation °,X Type Inverter Inverter Inverter InverterNumber °,X no. 1 1 1 1Circuits °,X no. 1 1 1 1Refrigerant °,X type R410A R410A R410A R410ARefrigerant charge °,X lbs 3.0 3.0 5.2 5.2Oil °,X Type NEO22 NEO22 FV50S FV50STotal oil charge °,X gal 1.2 1.2 2.3 2.3System side heat exchanger Type °,X type Brazed plate Brazed plate Brazed plate Brazed plateNumber °,X no. 1 1 1 1Minimum water flow rate °,X gpm 2.1 2.5 3.3 4.1Maximum water flow rate °,X gpm 7.1 9.0 11.0 14.1System side hydraulic connectionsConnections (in/out) °,X Type Gas - M (1) Gas - M (1) Gas - M (1) Gas - M (1)Sizes (in/out) °,X Ø 1” 1” 1” 1”FanType °,X type Axial Axial Axial AxialFan motor °,X type Inverter Inverter Inverter InverterNumber °,X no. 1 1 2 2Air flow rate °,X cfm 2,113 2,113 4,403 4,403Total fan input power °,X kW - - - -Total fan input current °,X A - - - -Sound data calculated in cooling mode (2)Sound power level °,X dB(A) 64.0 65.4 66.7 67.7Sound pressure level (10 m / 33 ft) °,X dB(A) 32.7 34.1 35.4 36.3Sound pressure level (1 m / 3.3 ft) °,X dB(A) 49.4 50.8 51.5 52.4Sound data calculated in heating mode (2)Sound power level °,X dB(A) 65.0 68.6 69.8 70.0Sound pressure level (10 m / 33 ft) °,X dB(A) 33.7 37.3 38.4 38.6Sound pressure level (1 m / 3.3 ft) °,X dB(A) 50.4 54.0 54.5 54.7

(1) A Gas-NPT adapter is supplied as standard.(2) Sound power calculated on the basis of measurements made in accordance with UNI EN ISO 9614-2. Sound pressure (cold functioning) measured in free field, 10 m / 33 ft away from the unit external surface (in compliance with UNI

EN ISO 3744).

ELECTRIC DATA

Size 020 025 040 045Electric data

Peak current (LRA)° A 8.0 8.0 10.0 10.0X A 8.8 8.8 10.8 10.8

Minimum circuit amperage (MCA)° A 25.0 25.0 35.0 35.0X A 30.0 30.0 35.0 35.0

Maximum overcurrent permitted by the protec-tion device (MOP)

° A 40.0 40.0 60.0 60.0X A 45.0 45.0 60.0 60.0

16 21.08 – 5523407_00

DIMENSIONS AND WEIGHTS

A

B

C

A

B

C

ANKI020 ANKI025

ANKI040 ANKI045

Size 020 025 040 045Dimensions and weightsA °,X in 40.5 40.5 58.4 58.4B °,X in 39.4 39.4 39.4 39.4C °,X in 13.6 13.6 13.6 13.6

Empty weight° lb 176.4 176.4 248.0 248.0X lb 180.8 180.8 252.4 252.4

10 MINIMUM TECHNICAL SPACES

B1

B2 C1

C2

A1

B1

B2 C1

C2

A1ANKI 020ANKI 025

ANKI 040ANKI 045

Size 020 025 040 045Minimum technical spacesA1 °,X in 118.2 118.2 118.2 118.2B1 °,X in 7.9 7.9 7.9 7.9B2 °,X in 19.7 19.7 19.7 19.7C1 °,X in Free field Free field Free field Free fieldC2 °,X in 5.9 5.9 5.9 5.9

21.08 – 5523407_00 17

11 OPERATING RANGE

In their standard configuration, the units are not suitable for installation in salty environments. The values indicated in the table refer to the min. and max. limits of the unit, valid for ΔT = 10°F (cooling mode) and ∆T = 9°F (heating mode).If the unit operates beyond the operational limits, we recommend you first contact our technical-sales service.

� Note: If the unit is installed in particularly windy areas, it is mandatory to have windbreak barriers to prevent unit malfunctions. It should be installed if wind speed is above 4.9 kn.

COOLING MODE

KeyA External air temperature (°F)

B Water produced temperature (°F)

B

A

0.0

40.0

60.0

80.0

107.6 107.6114.8

140.0

°F

0.0 10.0 17.6 30.0 39.2 50.0 60.0 68.0 80.0 °F

14.0

HEATING MODE RANGE

KeyA Water produced temperature (°F)B External air temperature (°F)

1 Standard operation + Technical water for possible domestic use2 Extension of the operating field with control logic for the domestic hot water

production system

-20.0 -4.0 14.0 40.032.0 60.0 80.0 107.695.0 120.0 °F60.0

80.086.0

100.0

118.4

129.2 131.0140.0

95.0

140.0

160.0

°F

A

B

1

2

2

18 21.08 – 5523407_00

12 PRESSURE DROPS

Inlet water temperature 54.0 °FOutlet water temperature 44.0 °FExternal air temperature 95 °FAverage water temperature 50 ° F

� ATTENTION: For average water temperature different than 50.0 °F (Cooling mode) or 109.4 °F (Heating or recovery mode) refer to the chapter "Corrective factors for average water temperatures different from nominal values"

Version °

A Pressure drops (ft H₂O)B Water flow rate (gpm)1 020-0252 0403 045

0.0

5.0

10.0

15.0

20.0

25.0

30.0

0.0 5.0 10.0 15.0 gpm

ftH2O

1

2

3

AA

BB

Version X

A Pressure drops (ft H₂O)B Water flow rate (gpm)1 0202 0253 0404 045

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

0.0 5.0 10.0 15.0

12 3 4

ftH2O

gpm

AA

BB

Size 020 025 040 045System side heat exchanger Minimum water flow rate °,X gpm 2.1 2.5 3.3 4.1Maximum water flow rate °,X gpm 7.1 9.0 11.0 14.1

21.08 – 5523407_00 19

13 PUMPS STATIC PRESSURE

Size 020 025 040 045PumpsNr. poles no. 2 2 2 2Maximum input power kW 0.14 0.14 0.14 0.14Maximum current A 1.20 1.20 1.20 1.20Minimum water flow rate gpm 0.0 0.0 0.0 0.0Maximum water flow rate gpm 6,250 6,250 6,250 6,250

The table shows the characteristic curves of the pumps, and therefore they do not represent the useful static pressures of the system.The useful static pressures of the system must be calculated by subtracting the pressure drop (Δp) of the unit from the static pressure of the pump that is read in this graph, which can be calculated using the above tables.

A Pumps static pressure (ft H₂O)B Water flow rate (gpm)1 020-025-040-045

0.0

6.7

13.4

20.1

26.8

33.5

40.1

0.0 4.4 8.8 13.2 17.6 22.0 26.4 30.8 gpm

ftH2O

1

A

B

20 21.08 – 5523407_00

14 SYSTEM WATER CONTENT

MINIMUM SYSTEM WATER CONTENT

The minimum water content of the system allows you to limit the activations and shutdowns of the compressor.To calculate it use the formula Pc (ton) X gal.

Size 020 025 040 045Minimum system water contentMinimum water content for air conditioning °,X gal/ton 2.3

MAXIMUM SYSTEM WATER CONTENT

Units with the hydronic kit mounted come standard with the expansion vessel set at 1.5 bar, the pressure relief valve, the flow switch and the water filter mounted.The maximum system water content depends on the capacity of the expansion vessel and on the calibration of the pressure relief valve.

Size 020 025 040 045Hydronic kitExpansion vessel number no. 1Expansion vessel capacity gal 0.5 0.5 1.3 1.3Pressure relief valve n°/bar 1/45

The table gives an example of the maximum water content calculated at the indicated operating conditions and only to protect the unit.If the volume of water in the system is higher, add another expansion vessel of the correct size.

System water temperature max/min °F 104/39.2Hydraulic height Ft 98.4 82.0 65.6 49.2 ≤40.19Expansion vessel pre-load psi 46.4 40.6 33.4 26.1 21.8Water content maximum gal 574.3 699.0 823.7 948.4 1,017.6System water temperature max/min °F 140/39.2Expansion vessel pre-load psi 46.4 40.6 33.4 26.1 21.8Water content maximum gal 258.4 314.4 370.9 426.9 457.5System water temperature max/min °C 185/39.2Expansion vessel pre-load psi 46.4 40.6 33.4 26.1 21.8Water content maximum gal 134.7 164.3 193.4 223.0 238.8

The data in the table refer to units with 6.3-litre expansion tanks and an in/out water temperature of 54.1/44.0 °F.

15 EXPANSION VESSEL SETTING

The expansion tank volume is 6.3 gal. The standard value of the expansion tank pre-charge pressure is 21.8 psi, but this can be calibrated up to a maximum of 87.0 psi.The expansion tank pressure setting has to be adjusted based on the difference in height (H) of the installation (see figure) according to the formula:p (calibration) [psi] = H [ft] / 33.5 + 1.0.For example: if level difference H is equal to 65.6 ft, the calibration value of the vessel will be 33.4 psi.If the calibration value obtained from the formula is less than 21.8 psi (i.e. for H < 40.2), use the standard calibration.

Key1 Check that highest installation is

not higher than 180.4 ft.2 Ensure that lowest utility can

withstand global pressure in that position

H max (1) = 180.4 ft

H = 0 ft

H = 40.1 ft

Ptar

= H

/ 33

.5 +

1.0

Ptar

= 2

1.8

psi

Ptar

= 2

1.8

psi

H min (2)

A

21.08 – 5523407_00 21

16 CORRECTION FACTORS

CORRECTIVE FACTORS FOR AVERAGE WATER TEMPERATURES DIFFERENT FROM NOMINAL VALUES

The pressure drops are calculated with an average water temperature of 50.0 °F (Cooling mode), 109.4 °F (Heating or recovery mode)

System side heat exchangerCooling mode Heating mode or recovery

Average water temperatures °F 41.0 50.0 59.0 68.0 86.0 104.0 122.0 73.4 82.4 91.4 100.4 109.4 118.4 127.4 134.4Correction factor 1.02 1.00 0.98 0.97 0.95 0.93 0.91 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97

FOULING: DEPOSIT CORRECTIVE FACTORS [K*M²]/[W]

0,0 0,00005 0,0001 0,0002Corrective factor of cooling capacity 1,0 1 0.98 0.94Corrective factor of imput power 1,0 1 0.98 0.95

17 GLYCOL

ETHYLENE GLYCOL

Cooling mode

CORRECTION FACTOR WITH ETHYLENE GLYCOL - COOLING MODEFreezing Point °F 0 25.47 21.02 15.93 10.20 3.67 –3.89 -12.62 -22.79 -34.78Percent ethylene glycol % 0 10 15 20 25 30 35 40 45 50Qwc – 1.000 1.033 1.040 1.049 1.060 1.072 1.086 1.102 1.120 1.141Pc – 1.000 0.990 0.985 0.980 0.975 0.970 0.965 0.960 0.955 0.950Pa – 1.000 0.996 0.994 0.992 0.990 0.988 0.986 0.984 0.982 0.980Δp – 1.000 1.109 1.157 1.209 1.268 1.336 1.414 1.505 1.609 1.728

Heating mode range

CORRECTION FACTOR WITH ETHYLENE GLYCOL - HEATING MODEFreezing Point °F 0 25.47 21.02 15.93 10.20 3.67 -3.89 -12.62 -22.79 -34.78Percent ethylene glycol % 0 10 15 20 25 30 35 40 45 50Qwh – 1.000 1.027 1.038 1.050 1.063 1.078 1.095 1.114 1.135 1.158Ph – 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000Pa – 1.000 1.002 1.003 1.004 1.005 1.007 1.008 1.010 1.012 1.015Δp – 1.000 1.087 1.128 1.175 1.227 1.286 1.353 1.428 1.514 1.610

PROPYLENE GLYCOL

Cooling mode

CORRECTION FACTOR WITH PROPILENE GLYCOL - COOLING MODEFreezing Point °F 0 25.83 22.46 18.61 14.04 8.46 1.65 -6.65 -16.67 -28.70Percent propilene glycol % 0 10 15 20 25 30 35 40 45 50Qwc – 1.000 1.007 1.006 1.007 1.010 1.015 1.022 1.032 1.044 1.058Pc – 1.000 0.985 0.978 0.970 0.963 0.955 0.947 0.939 0.932 0.924Pa – 1.000 0.996 0.994 0.992 0.990 0.988 0.986 0.984 0.982 0.980Δp – 1.000 1.082 1.102 1.143 1.201 1.271 1.351 1.435 1.520 1.602

Heating mode range

CORRECTION FACTOR WITH PROPILENE GLYCOL - HEATING MODEFreezing Point °F 0 25.83 22.46 18.61 14.04 8.46 1.65 -6.65 -16.67 -28.70Percent propilene glycol % 0 10 15 20 25 30 35 40 45 50Qwh – 1.000 1.008 1.014 1.021 1.030 1.042 1.055 1.071 1.090 1.112Ph – 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000Pa – 1.000 1.003 1.004 1.005 1.007 1.009 1.011 1.014 1.018 1.023Δp – 1.000 1.050 1.077 1.111 1.153 1.202 1.258 1.321 1.390 1.467

� Attention: Avoid adding the glycol in the hydraulic circuit near the pump intake. A high concentration of glycol and additives above the permissible limits can block the pump: do not use the pump as a mixer.

22 21.08 – 5523407_00

18 SOUND DATA

SOUND DATA CALCULATED IN COOLING MODE

Size 020 025 040 045Sound data calculated in cooling mode (1)Sound power level °,X dB(A) 64.0 65.4 66.7 67.7Sound pressure level (10 m / 33 ft) °,X dB(A) 32.7 34.1 35.4 36.3Sound pressure level (1 m / 3.3 ft) °,X dB(A) 49.4 50.8 51.5 52.4Sound power by centre octave band dB(A)125 Hz °,X dB(A) 57.4 57.5 52.5 56.3250 Hz °,X dB(A) 60.5 61.8 58.8 59.7500 Hz °,X dB(A) 55.8 57.5 61.0 61.81000 Hz °,X dB(A) 54.2 55.0 61.7 62.52000 Hz °,X dB(A) 51.9 56.1 59.4 60.14000 Hz °,X dB(A) 46.7 50.0 52.2 52.88000 Hz °,X dB(A) 34.4 37.1 41.3 42.6

(1) Sound power calculated on the basis of measurements made in accordance with UNI EN ISO 9614-2. Sound pressure (cold functioning) measured in free field, 10 m / 33 ft away from the unit external surface (in compliance with UNI EN ISO 3744).

SOUND DATA CALCULATED IN HEATING MODE

Size 020 025 040 045Sound data calculated in heating mode (1)Sound power level °,X dB(A) 65.0 68.6 69.8 70.0Sound pressure level (10 m / 33 ft) °,X dB(A) 33.7 37.3 38.4 38.6Sound pressure level (1 m / 3.3 ft) °,X dB(A) 50.4 54.0 54.5 54.7Sound power by centre octave band dB(A)125 Hz °,X dB(A) 57.4 57.5 52.5 56.3250 Hz °,X dB(A) 60.5 61.8 58.8 59.7500 Hz °,X dB(A) 55.8 57.5 61.0 61.81000 Hz °,X dB(A) 54.2 55.0 61.7 62.52000 Hz °,X dB(A) 51.9 56.1 59.4 60.14000 Hz °,X dB(A) 46.7 50.0 52.2 52.88000 Hz °,X dB(A) 34.4 37.1 41.3 42.6

(1) Sound power calculated on the basis of measurements made in accordance with UNI EN ISO 9614-2. Sound pressure (cold functioning) measured in free field, 10 m / 33 ft away from the unit external surface (in compliance with UNI EN ISO 3744).

System water temperature 54.0/44.0 °F (in/out)External air temperature 95 °FStandard fansNoteFor operating conditions different to those declared refer to the selection program Magellano, available on www.aermec.com

A E R M E C S . p . A .

V i a R o m a , 9 9 6 - 3 7 0 4 0 B e v i l a c q u a ( V R ) - I t a l y

P h o n e + 3 9 0 4 4 2 6 3 3 1 1 1 - F a x + 3 9 0 4 4 2 9 3 5 7 7

s a l e s @ a e r m e c . c o m - w w w . a e r m e c . c o m

2 1 . 0 8 – 5 5 2 3 4 0 7 _ 0 0

5523407_00

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