cs-re912hke-manual.pdf

8/10/2019 CS-RE912HKE-manual.pdf

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2008 Panasonic Home Appliances Air-Conditioning(Guangzhou) Co.,Ltd (PHAAG). All rights reserved.Unauthorized copying and distribution is a violation oflaw.

Order No: PHA-AG0801001C2

Indoor Unit Outdoor UnitCS-RE9HKECS-RE12HKE

CU-RE9HKECU-RE12HKE

TABLE OF CONTENTS1. Safety Precautions .............................................3

2. Specif ication .......................................................5

2.1 CS-RE9HKE CU-RE9HKE...........................5 2.2 CS-RE12HKE CU-RE12HKE.......................7

3. Features ..............................................................9

4. Location of Controls and Components .........10 4.1 Indoor Unit..................................................10 4.2 Outdoor Unit ...............................................10 4.3 Remote Control ..........................................10

5. Dimens ions .......................................................11

5.1 Indoor Unit..................................................11 5.2 Outdoor Unit ...............................................12

6. Refrigeration Cycle Diagram...........................13

7. Block Diagram ..................................................14

8. Wiring Connection Diagram............................15 9. Prin ted Circ uit Board .......................................16

10. Installation Instruction.....................................19

10.1 Select the Best Location ............................19 10.2 Indoor Unit..................................................20 10.3 Outdoor Unit ...............................................22

11. Service Mode ....................................................25

11.1

Auto OFF/ON Button..................................25

11.2 Select Remote Control Transmission Code25 11.3 Operate and Display of Remote Control ....26

12. Operation Control .............................................28

12.1 Basic Function............................................28 12.2 Indoor Fan Motor Operation.......................29 12.3 Outdoor Fan Motor Operation.................... 29 12.4 Airflow Direction .........................................30

13. Protecti on control ............................................32

13.1 Protection Control For All Operations ........32 13.2 Protection Control For Cooling and Soft Dry

Operation....................................................33 13.3 Outdoor Air Temperature Control...............34

This service information is designed for experienced repair technicians only and is not designed for use by the general public.It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to serviceor repair the products dealt with in this service information by anyone else could result in serious injury or death.

WARNING


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14. Troubleshooting Guide....................................36

14.1 About Self Diagnosis ..................................3614.1 Display of Error Code..36

15. Disassembly and Ass embly Instructions ......39

16. Exploded View and Replacement Pars Li st ...42

16.1 Indoor Unit ..................................................42 16.2 Outdoor Unit ...............................................44


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3

CAUTION

WARNING

WARNING

1. Safety Precautions Read the following SAFETY PRECAUTIONS carefully before perform any servicing. Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the

power plug and main circuit for the model installed. The caution items stated here must be followed because these important contents are related to safety. The

meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instructionwill cause harm or damage, and the seriousness is classified by the following indications.

This indication shows the possibility of causing death or serious injuryThis indication shows the possibility of causing injury or damage to properties.

The items to be followed are classified by the symbols:

Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation,care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions forfuture reference.

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical

shock or fire.2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock

or fire.3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage,

fire or electrical shock.4. Install at a strong and firm location which is able to withstand the sets weight. If the strength is not enough or installation is

not properly done, the set will drop and cause injury.5. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, child

may climb up to outdoor unit and cross over the handrail and causing accident.6. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit

and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will causeelectrical shock or fire.

7. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current

Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation breakdown.8. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning rod and

telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.9. Use the specified cable (1.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so

that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at theconnection.

10. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixedperfectly, it will cause fire or electrical shock.

11. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go intorefrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion andinjury.12. Do not damage or use unspecified power supply cord. Otherwise, it will cause fire or electrical shock.

13. Do not modify the length of the power supply cord or use extension cord, and do not share the single outlet with otherelectrical appliances. Otherwise, it will cause fire or electrical shock.

14. For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such samemay cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Useonly R410A materials. Thickness or copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. It is desirable that the amount of residual oil is less than 40 mg/10 m.15. During installation, before run the compressor, confirm the refrigeration pipes are fixed. Operation of compressorwithout fixing the piping, setting the 2 way valve and 3 way valve at open condition, a burst may occur and cause injury.

16. During pump down operation, stop the compressor before remove the refrigeration piping. When remove piping while 2 wayvalve, 3 way valve at open condition, burst may occur and cause injury.

17. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant

contacts with fire.18. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with fire.

This symbol denotes item that is PROHIBITED from doing.


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CAUTION

1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates atsurrounding of the unit, it may cause fire.

2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room anddamage the furniture.

3. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period,the flare may break and cause refrigerant gas leakage.

4. Do not touch outdoor unit air inlet and aluminums fin. It may cause injury.

5. Select an installation location which is easy for maintenance.

6. Power supply connection to the air conditioner.Connect the power supply cord of the air conditioner to the mains using one of the following methods.Power supply point should be in easily accessible place for power disconnection in case of emergency.In some countries, permanent connection of this air conditioner to the power supply is prohibited.1) Power supply connection to the receptacle using a power plug.Use an approved 15/16A power plug with earth pin for the connection to the receptacle.2) Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the

permanent connection. It must be a double pole switch with a minimum 3.5 mm contact gap.7. Do not release refrigerant.Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Takecare of the liquid refrigerant, it may cause frostbite.

8. Installation work.It may need two people to carry out the installation work.9. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.


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2. Specification

2.1 CS-RE9HKE CU-RE9HKE

Item Unit Indoor Unit Outdoor UnitkW 2.60(0.90~3.00)Capacity

BTU/h 8870(3070~1023)

W/W 3.56(4.74~3.00)EER BTU/hW 12.15(16.16~10.23)dB(A) Hi: 42 Lo: 27 QLo: 25 Hi: 47

C O OL I N

G Noise Level

Power level dB 53 60kW 3.30(0.90~4.10)Capacity

BTU/h 11250(3070~13980)W/W 4.02(5.29~3.57)EER

BTU/hW 13.72(18.06~12.16)dB(A) Hi: 42 Lo: 27 QLo: 26 Hi: 47

HE A T I N

G Noise Level

Power level dB 53 60l/h 1.5Moisture Removal

(pt/h) 2.6Lo m 3/m (ft 3/m) 9.00(250) -Me m 3/m (ft 3/m) 9.13(322) -

Air Volume

Hi m 3/m (ft 3/m) 11.6 (409) 28.9 (1020)Refrigerant Control Device - Capillary TubeRefrigerant Oil (Charged) cm 3 - RB68A or Freol Alpha68MRefrigerant (Charged) R410A kg (oz) - 0.78 (27.5)

Height mm (inch) 280 (11-1/32) 540 (21-1/4)Width mm (inch) 799 (31-15/32) 780 (30-23/32)

Dimension

Depth mm (inch) 183 (7-13/64) 289 (11-3/8)Net Weight kg (lbs) 8.5 (19) 28 (62)

Gas mm (inch) 9.52 (3/8)PipeDiameter Liquid mm (inch) 6.35 (1/4)Pipe Length m (ft) 3 (9.8) - 15(49.2)

Height Difference m (ft) 5 (16.4) Additional Gas Amount g/m (oz/ft) 20 (0.2)Refrigerant Charge Less m (ft) 7.5 (24.6)

Inner diameter mm 14 -Drain HoseLength mm 500 -Type - RotaryMotor Type - Induction (6-poles)

Compressor

Rated Output W - 750Type Cross-Flow Fan Propeller FanMaterial AS PPMotor Type Induction (8-poles) Induction (6-poles)Input power W - -

Output power W 30 15Lo rpm 830 -Me rpm 1070 -

Fan

FanSpeed

Hi rpm 1360 750Fin material Aluminium (Pre Coated) Aluminum ( Pre Coated)Fin type Slit Fin Slit FinRow x stage x FPI 2 x 15 x 20 1 x 24 x 17

HeatExchanger

Size (W x H x L) mm 610 x 315 x 25.4 709 x 504 x 18.2Material P.P.HONEY COMB - Air Filter

Type Style One-Touch -

1. Cooling capacities are based on indoor temperature of 27C Dry Bulb (80.6F Dry Bulb), 19C Wet Bulb (66.2FWet Bulb) and outdoor air temperature of 35C Dry Bulb (95.0F Dry Bulb), 24C Wet Bulb (75.2F Wet Bulb).2. Heating capacities are based on indoor temperature of 20C Dry Bulb (80.6F Dry Bulb) and outdoor airtemperature of 7C Dry Bulb (44.6F Dry Bulb), 6C Wet Bulb (42.8F Wet Bulb).


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Item Unit SingleV 230Power Source (Phase, Voltage, Cycle)

Hz 50Input Power W 730(190~1000)Starting Current A 3.70Running Current A 3.50Maximum Current A 6.00Power Factor % 91Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Number of core 3 (1.5mm)Power CordLength m 1.9

Thermostat Electronic ControlProtection Device Electronic ControlNoteSpecification is subject to change without prior notice for further improvement.


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2.2 CS-RE12HKE CU-RE12HKEItem Unit Indoor Unit Outdoor Unit

kW 3.50(0.90~3.90)CapacityBTU/h 11940(3070~13300)W/W 3.47(5.29~3.25)EER


C O OL I N

G Noise Level

Power level dB Hi: 53 Lo: - Hi: 61kW 4.25(0.90~5.10)Capacity

BTU/h 14490(3070~17390)W/W 3.79(6.00~3.49)COP


HE A T I N

G

Noise LevelPower level dB Hi: 53 Lo: - Hi: 63

l/h 2.0Moisture Removal(pt/h) 3.5

Lo m 3/m (ft 3/m) 8.03(283) -Me m 3/m (ft 3/m) 9.91(350) -

Air Volume

Hi m3

/m (ft3

/m) 11.7 (413) 30.5 (1076)Refrigerant Control Device - Capillary TubeRefrigerant Oil (Charged) cm 3 - RB68A or Freol Alpha68MRefrigerant (Charged) R410A kg (oz) - 0.97 (34.2)

Height mm (inch) 280 (11-1/32) 540 (21-1/4)Width mm (inch) 799 (31-15/32) 780(30-23/32)

Dimension

Depth mm (inch) 183 (7-13/64) 289 (11-3/8)Net Weight kg (lbs) 8.5 (19) 30 (66)

Gas mm (inch) 9.52 (3/8)PipeDiameter Liquid mm (inch) 6.35 (1/4)Pipe Length m (ft) 3 (9.8) - 15 (49.2)Height Difference m (ft) 5 (16.4)

Additional Gas Amount g/m (oz/ft) 20 (0.2)Refrigerant Charge Less m (ft) 7.5 (24.6)

Inner diameter mm 14 -Drain HoseLength mm 500 -Type - RotaryMotor Type - Induction (6-poles)

Compressor

Rated Output W - 900Type Cross-Flow Fan Propeller FanMaterial AS PPMotor Type Induction (8-poles) Induction (6-poles)Input power W - -Output power W 30 25

Lo (Cool) rpm 940 -Me (Cool) rpm 1160 -

Fan

FanSpeed

Hi (Cool) rpm 1370 870Fin material Aluminum (Pre Coated) Aluminum (Pre Coated)Fin type Slit Fin Slit FinRow x stage x FPI 2 x 15 x 20 2 x 20 x 17

HeatExchanger

Size (W x H x L) mm 610 x 315 x 25.4 709 x 540 x 36.4Material P.P.HONEY.COMP - Air Filter

Type Style One-Touch -

1. Cooling capacities are based on indoor temperature of 27C Dry Bulb (80.6F Dry Bulb), 19C Wet Bulb (66.2FWet Bulb) and outdoor air temperature of 35C Dry Bulb (95.0F Dry Bulb), 24C Wet Bulb (75.2F Wet Bulb).2. Heating capacities are based on indoor temperature of 20C Dry Bulb (80.6F Dry Bulb) and outdoor airtemperature of 7C Dry Bulb (44.6F Dry Bulb), 6C Wet Bulb (42.8F Wet Bulb).


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Item UnitSingle

V 230Power Source (Phase, Voltage,Cycle)

Hz 50Input Power W 1010(170~1200)Starting Current A 4.90Running Current A 4.70Maximum Current A 6.80

Power Factor % 93Power factor means total figure of compressor, indoor fan motor and outdoor fan motor.

Number of core 3 (1.5mm)Power CordLength m 1.9

Thermostat Electronic ControlProtection Device Electronic ControlNoteSpecification is subject to change without prior notice for further improvement.


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3. Features Inverter Technology

o Wider output power rangeo Energy savingo Quick Coolingo More precise temperature control

Long Installation Pipingo CS/CU-RE9/12GKR, long piping up to 10 meters.

Easy to use remote control

Quality Improvemento Random auto restart after power failure for safety restart operationo Gas leakage protectiono Prevent compressor reverse cycleo Inner protector to protect compressor

Operation Improvemento Quiet mode to reduce the indoor unit operating soundo Powerful mode to reach the desired room temperature quicklyo 12-hour timer

Serviceability Improvemento Breakdown Self Diagnosis Function.


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4. Location of Controls and Components

4.1 Indoor Unit

4.2 Outdoor Unit

4.3 Remote Control

For normal operation, the ERROR RESET button isnot in use.

Press RESET button to restore the remote controlsdefault setting.

OFF/ON

Operationmode

Airflow directionadjustment

Timersetting

Temperaturesetting

Transmitter

Fan speedselection


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5. Dimensions

5.1 Indoor Unit


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5.2 Outdoor Unit

Unit: mm


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6. Refrigeration Cycle Diagram


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7. Block Diagram


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8. Wiring Diagram

POWER SUPPLY CORD

BR

AC2

AC1

AC3

BR

AC4

B

FUSET 3.15A L 250V

AUTO SW

CN-DISP(W) CN-STM

(W)

CN-TH(Y)

CN-FM(W)

R

BLWBY

FM R Y - P

W R

ZNR

SENSOR(AIR TEMPERATURE.)

ELECTRONICCONTROLLER

(DISPLAY,RECEIVER)

SENSOR(PIPING TEMP.)

BR

R

O

Y

P

MOTOR

MOTOR1

4

12

ELECTRONICCONTROLLER

(MAIN)

1 L 2 N 3

WIRELESS REMOTE CONTROL

W

TERMINAL

Y/G

COMPRESSOR TERMINALYELLOW

REDBLUE

TRADE MARK

INDOOR UNIT

12

CN-D ISP(W )

1CS/CU-RE9CS/CU-RE12

HK EHK E

Te mp er at ur e ( )

R e s

i s t a n c e

( k

)

:Pipe Temp. Sensor :Outdoor air sensor : Discharge Temp.Sensor

Remark:

1

1 4CN-GMD (Y)

OUTDOOR UNIT

GRY

GRY

RY- PWR PTC2 PTC 1

T20A L250V

AC-N(BLUE)

AC-L(BROWN)

DATA( )BLACK

BROWN

+

R E A C T OR

TERMINAL

FUSE

FM2FM1 FGIFG2

FAN MOTOR

RY-CDB102

+

-+

DB101

+

-

N P

+

+

FUSE2T3.14A L250V

RB Y

COMPRESSOR

Fm31 2

COIL 2T

RY-FM

CONNECTOR

CABINET

CABINET

BLACKBLUE

1 L 2 N 3

RB Y


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BOTTOM VIEW


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9.1.2 Indicator

TOP VIEW

BOTTOM VIEW


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10. Installation Instruction

10.1 Select the Best Location

10.1.1 Indoor Unit There should not be any heat source or steam near

the unit. There should not be any obstacles blocking the air

circulation. A place where air circulation in the room is good. A place where drainage can be easily done. A place where noise prevention is taken into

consideration. Do not install the unit near the door way. Ensure the spaces indicated by arrows from the wall,

ceiling, fence or other obstacles. Recommended installation height for indoor unit shall

be at least 2.5m.

10.1.2 Outdoor Unit If an awning is built over the unit to prevent direct

sunlight or rain, be careful that heat radiation from thecondenser is not obstructed.

There should not be any animal or plant which could beaffected by hot air discharged.

Keep the spaces indicated by arrows from wall, ceiling,fence or other obstacles.

Do not place any obstacles which may cause a shortcircuit of the discharged air.

If piping length is over the rated length, additionalrefrigerant should be added as shown in the table below:

Example: If the unit is installed at a 10m distance, the quantity of additional refrigerant should be 50 g.

(10-7.5) m x 20g/m = 50 g

Piping sizeModelGas Liquid

RatedLength(m)

MaxElevation(m)

Min PipingLength (m)

MaxPipingLength(m)

AdditionalRefrigerant(g/m)

RE9HKE 3/8 1/4" 7.5 5 3 15 20RE12HKE 3/8 1/4 7.5 5 3 15 20

11.1.3 Indoor/Outdoor Unit


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B A

Wall WallMore than 450 mm More than 450 mm

Screw

219 mm

125 mm

Installation plate

Measuringtape

224 mm

150 mm

2

1

Wall

Indoor Outdoor

15 mm

Sleeve for tube assy

Approx. 5 - 7 mm

Bushing for tube assy

Putty or caulking compound 70 through hole

10.2 Indoor Unit

10.2.1 How to Fix Installation PlateThe mounting wall is strong and solid enough to prevent if from the vibration.

The centre of installation plate should be at morethan 450 mm at right and left of the wall.

The distance from installation plate edge toceiling should more than 75mm.

From installation plate left edge to units left sideis 98mm.

From installation plate right edge to units rightside is 112mm.

B : For left side piping, piping connection for gas should be about 45mm from this line.: For left side piping, piping connection cable should be about 800mm from this line.

1 Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the wall, considerusing anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line withthe thread and using a level gauge.

2 Drill the piping plate hole with 70mm hole-core drill.2.1 Line according to the left and right side edge of the installation plate. The meeting point of the

extended line is the centre of the hole. Another method is by putting measuring tape at positionas shown in the diagram above. The hole centre is obtained by measuring the distance namely150mm and 125mm for left and right hole respectively.

2.2 Drill the piping plate hole at either the right or left and the hole should be slightly slanted to theoutdoor side.

10.2.2 To Dril l a Hole in the Wall and Install a Sleeve of Piping1 Insert the piping sleeve to the hole.2 Fix the busing to the sleeve.3 Cut the sleeve until it extrudes about 15mm from the wall

4 Finish by sealing the sleeve with putty or caulking compound at thefinal stage.

CautionWhen the wall is hollow, please be sure to use the sleeve for tubeassy to prevent dangers caused by mice biting the connectingcable.


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10.2.3 Indoor Unit Installation


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10.2.4 Connect the Cable to the Indoor Unit1 The inside and outside connecting cable can be connected without removing the front grille.2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x

1.5mm 2 flexible cord, type designation 245 IEC 57 or heavier cord. Ensure the color of wires of outdoor unit and the terminal numbers are the same to the indoors

respectively. Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety

in case of the slipping out of the cord from the anchorage.

Secure the cable onto the board with the holder (clamper).

10.3 Outdoor Unit

10.3.1 Install the Outdoor Unit After selecting the best location, start installation according to indoor/outdoor unit installation diagram.

1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (10mm).2 When installing at roof, please consider strong wind and earthquake.

Please fasten the installation stand firmly with bolt or nails.

10.3.2 Connecting the Piping

10.3.2.1 Connecting the pipi ng to indoor uni tPlease make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case ofusing long piping)

Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table.

Connecting the piping to outdoor unitDecide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting theflare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench tothe specified torque as stated in the table.

A B C D570 104 20 320

Piping size (Torque)Gas Liquid3/8 (42Nm) 1/4" (18Nm)1/2" (55Nm) 1/4" (18Nm)Do not over tighten, over tighteningcause gas leakage

B A

C

D

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10.3.2.2 Cutting and flaring the piping1 Please cut using pipe cutter and then remove the burrs.2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping

end down to avoid the metal powder entering the pipe.3 Please make flare after inserting the flare nut onto the copper pipes.

10.3.3 Evacuation of the equipmentWhen installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the follwingprocidure.

1 Connect a charging hose with a push pin to the low side of a charging set and the service port at the 3-wayvalve.

Be sure to connect the end of charging hose with the push pin to the service port. The size of charging hose fitting should be 1/2 UNF, 20 threads.

2 Connect the center hose o the charging set to a vacuum pump with check valve, or vacuum pump andvacuum pump adaptor.

3 Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0cmHg (0 Mpa) to 76 cmHg (-0.1 Mpa). Then evacuate the air approximately ten minutes.

4 Close the Low side valve of the charging set and turn off the vacuum pump.Make sure that the needle in thegauge does not move after approximately five minutes.Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGEANT GAS LEAKAG

5 Disconnect the charging horse from the vacuum pump and from the service port of the 3-way valve.6 Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench.7 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to OPEN

using a hexagonal wrench (4mm).8 Mount valve caps onto the 2-way and the 3-way valve.

Be sure to check for gas leakage.

CAUTION:

Control board cover

Terminal board

O v e r

5 m m

To indoor unit

Liquid sideGas side

2-way valve(Open)

Cap

3-way valve (Open)Hexagonal wrench

Service port cap

Outdoor Unit


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10.3.4 Connect the cable to the Outdoor Unit1 Remove the control board cover from the unit by loosening the screw.2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x

1.5mm 2 flexible cord, type designation 245 IEC 57 or heavier cord.

3 Secure the cable onto the control board with the holder (clamper).4 Attach the control board cover back to the original position with the screw.

10.3.5 Pipe Insulation1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation

Diagram. Please warp the insulated piping end to prevent water from going inside the piping.2 If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by

using POLY-E-FOAM with thickness 6mm or above.


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11. Service Mode

11.1 Auto OFF/ON But ton

1. AUTO OPERATION MODEOnce the Auto OFF/ON button is slightly pressed, the unit will immediately operate in Auto operation. Thisoperation can be used to operate air conditioner with limited function if remote control is misplaced ormalfunction.

2. TEST RUN OPERATION( FOR PUMP DOWN/ SERVICING PURPOSE)Press the button continuously for approximate 5 second and then release. A beep sound will be heard toidentify the starting of TEST RUN OPERATION.

3. HEATING OPERATION A) Within 5 minutes after TEST RUN operation starting, press the button again for more than 5 seconds until 2

beep sounds are heard, the unit will operate in heating mode.B) Pressed the button continuously for approximate 8 second and then released. 2 beep sounds will be

heard to identify the starting of HEATING operation.

4. DIFFERENT CONTROLLING SETTING.Press the button continuously for approximate 11 until 3 beep sounds are heard and together with the signalfrom remote controller, the unit can be changed to different controlling setting.For transmission code selection method, please refer to Select Remote Control Transmission Code

5. INDIVIDUAL COUNTER-ACTIONWhen the switch is continuously pressed between 16 to 21 seconds, either H14 error detection selection mode orremote controllers signal receiving sound can be cancelled or turned on.

11.2 Select Remote Control Transmission Code There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor PCB.

The indoor unit will only operate when received signal with same transmission code from remote control. Thiscould prevent signal interference when there are 2 or more indoor units installed near by together.

To Change the code of remote controller, following table I to join or cut jumper wire on the remote controller andsetting with "Forced operation button". Four codes (A, B, C, D) can be selected. Taking code "B" for example,the process below should be follow.1. Press the "Auto OFF/ON button on the indoor unit for approximate 11 seconds until 3 "Beeps signal receiving

sounds are heard.2. Within 5 minutes, gently press the "RESET" button on the remote control towards the indoor unit. One "Beep"

sound is heard.3. Within 60 seconds, press any button on the remote control, the frequency of which was set as "B". Setting is

completed after a "Beep" sound is heard. The corresponding signal sent by remote control "B" will be receivedby this indoor unit

Table 1Remote control J02 J03

A(STANDARD) SHORT OPENB OPEN OPENC SHORT SHORTD OPEN SHORT

Auto OFF/ONButton Pressed


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11.3.7 Timer setting buttonThere are 4 types of timer setting by pressing Timer setting button: ON-TIMER, OFF-TIMER, ON-OFF TIMER, OFF-ON TIMER.

1) SELECT button When the air conditioner is ON, OFF-TIMER or OFF-ON TIMER can be selected by pressing SELECT

button.

When the air conditioner is turned off, ON-TIMER or ON-OFF-TIMER can be selected.

2) Button A and BPressing button A can change the time for ON-TIMER and OFF-TIMER, off time for OFF-ON Timer, on time forON-OFF TIMER; Pressing button B can change the on time for OFF-ONTimer and off time for ON-OFF Timer setting.

3) SET/CANCEL button.Pressing the button to set or cancel the set timer during the timer setting or activate the previous timer setting. After thetimer setting is determined, ON or OFF will stop flashing. If the timer setting is cancelled, ON or OFF will disappearon the remote control display.

NOTE: OFF Timer and OFF- ON Timer can only be set during the operation; Timer setting can operate only once. If the OFF/ON button on the remote control or the AUTO Switch on the indoor unit is pressed, the timer setting Will be cancelled. If Auto Restart Control occurs, timer setting will be cancelled. During the operation, if the ON Timer or ON-OFF Timer is set, the operation will be stopped.

11.3.8 About Cursor Key Which Points To OFF On Remote ControlWhen the ON/OFF button on the remote control is pressed, the cursor key which points to OFF will appear orDisappear to indicate the ON/OFF status of the air conditioner.

For some reason (Ex. The signal of the remote control does not reach the signal receiver of the indoor unit.), the display of theremote control will not correspond with the actual ON/OFF status of the indoor unit:

1. The air conditioner is running but the cursor key which points to OFF appears. The air conditioner can be stopped withany button (Except for ON/OFF, TIMER SET, TIMER ON) pressed.

2. The air conditioner is on standby, but the cursor key which points to OFF disappears. The air conditioner can be startedwith any button (Except for ON/OFF, TIMER SET, TIMER OFF) pressed.


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12. Operation Control

12.1 Basic Function

12.1.1 Internal Setting TemperatureOnce the operation starts, remote control setting temperature will be taken as base value for temperature shiftingprocesses. These shifting processes are depending on the air conditioner settings and the operation environment.The final shifted value will be used as internal setting temperature and it is updated continuously whenever theelectrical power is supplied to the unit.

12.1.2 Cooling Operation

12.1.2.1 Thermostat cont rol Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5 Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature >

Compressor OFF point.

12.1.3 Soft Dry Operation

12.1.3.1 Thermostat cont rol (The same as Cooling mode)12.1.4 Heating operation

12.1.4.1 Thermostat cont rol Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0 Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature

cs-re912hke-manual.pdf

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