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89

Installation and Maintenance

Service Manual

11. Removal Procedure

11.1 Removal Procedure of Indoor Unit

Caution: discharge the refrigerant 
completely before removal.

Location of 

step motor

Axile bush 

Horizontal louver

Screws

B2/B4/B8 panel display

Right filter

Front

case

Groove

Left filter

Front panel

Open the front panel. Push the left and 
rightfilters to make them break away from 
thegroove on the front case. Then remove 
the leftand right filters one by one.

Push out the axile bush on horizontal louver, 
Bend the horizontal louver with hand and 
then separate the horizontal louver from the 
crank shaft of step motor to remove it.

Separate the panel rotation shaft from 
the groove fixing the front panel and then 
removes the front panel.

Screw off the 2 screws that are locking the 
display board.

Note:

Applicable for A1/A5/B2/B4/B6/B8/C2 panel.

1.Remove fifter assy

2.Remove horizontal louver

3.Remove panel and display

 Front panel

Panel

A1//A5/B6/C2 panel display

Panel rotation

Groove 

Содержание GWH18QD-K3DNA1G

Страница 1: ...1G GWH18QD K3DNA2G GWH18QD K3DNA5G GWH18QD K3DNA6G GWH18QD K3DNB2G GWH18QD K3DNB4G GWH18QD K3DNB6G GWH18QD K3DNB8G GWH18QD K3DNC2G GWH24QE K3DNA1G GWH24QE K3DNA2G GWH24QE K3DNA5G GWH24QE K3DNA6G GWH24QE K3DNB2G GWH24QE K3DNB4G GWH24QE K3DNB6G GWH24QE K3DNB8G GWH24QE K3DNC2G Refrigerant R410A ...

Страница 2: ...ram 15 5 Electrical Part 16 5 1 Wiring Diagram 16 5 2 PCB Printed Diagram 20 6 Function and Control 23 6 1 Remote Controller Introduction 23 6 2 Brief Description of Modes and Functions 27 Part Ⅱ Installation and Maintenance 36 7 Notes for Installation and Maintenance 36 8 Installation 38 8 1 Installation Dimension Diagram 38 8 2 Installation Parts checking 40 8 3 Selection of Installation Locatio...

Страница 3: ...ed View and Parts List 66 10 1 Indoor Unit 66 10 2 Outdoor Unit 86 11 Removal Procedure 89 11 1 Removal Procedure of Indoor Unit 89 11 2 Removal Procedure of Outdoor Unit 94 Appendix 101 Appendix 1 Reference Sheet of Celsius and Fahrenheit 101 Appendix 2 Configuration of Connection Pipe 101 Appendix 3 Pipe Expanding Method 102 Appendix 4 List of Resistance for Temperature Sensor 103 ...

Страница 4: ...Summary Part Ⅰ Technical Information Indoor Unit A1 panel A2 panel A5 panel GWH18QD K3DNA5G I CB425N03402 CB425N03400 GWH24QE K3DNA5G I CB425N03302 A5 panel GWH18QD K3DNA5G I CB425N03403 GWH24QE K3DNA5G I CB425N03303 B2 panel B4 panel A6 panel ...

Страница 5: ...2 Technical Information Service Manual Outdoor Unit GWH18QD K3DNA1G O GWH24QE K3DNA1G O Remote Controller YAN1F1 B6 panel B8 panel C2 panel ...

Страница 6: ... Application Area m2 23 34 Indoor Unit Indoor Unit Model 1 GWH18QD K3DNA1G I 2 GWH18QD K3DNA5G I 3 GWH18QD K3DNA6G I 4 GWH18QD K3DNB4G I 5 GWH18QD K3DNB6G I Indoor Unit Product Code 1 CB419N05600 2 CB425N03402 CB425N03403 3 CB427N04400 4 CB434N02002 5 CB435N00202 Fan Type Cross flow Fan Diameter Length DXL mm Ф106X706 Cooling Speed SH H M L SL r min 1230 1130 1030 900 Heating Speed SH H M L SL r m...

Страница 7: ...n Motor RLA A Fan Motor Capacitor μF Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axial flow Fan Diameter mm Ф520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 Sound Pressure Level H M L dB A 56 Sound Power Le...

Страница 8: ...34 Indoor Unit Indoor Unit Model 1 GWH18QD K3DNA1G I 2 GWH18QD K3DNA2G I 3 GWH18QD K3DNA5G I 4 GWH18QD K3DNB2G I 5 GWH18QD K3DNB4G I 6 GWH18QD K3DNB6G I 7 GWH18QD K3DNB8G I 8 GWH18QD K3DNC2G I Indoor Unit Product Code 1 CB419N05601 2 CB426N01400 3 CB425N03400 4 CB432N02300 5 CB434N02000 6 CB435N00200 7 CB438N00500 8 CB439N00200 Fan Type Cross flow Fan Diameter Length DXL mm Ф106X706 Cooling Speed ...

Страница 9: ...n Motor RLA A Fan Motor Capacitor μF Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axial flow Fan Diameter mm Ф520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 Sound Pressure Level H M L dB A 56 Sound Power Le...

Страница 10: ...a m2 23 34 Indoor Unit Indoor Unit Model 1 GWH24QE K3DNA1G I 2 GWH24QE K3DNA2G I 3 GWH24QE K3DNA5G I 4 GWH24QE K3DNA6G I 5 GWH24QE K3DNB4G I 6 GWH24QE K3DNB6G I Indoor Unit Product Code 2 CB419N05300 CB419N05302 2 CB426N01500 3 CB425N03302 CB425N03303 4 CB427N04500 5 CB434N02202 6 CB435N00303 Fan Type Cross flow Fan Diameter Length DXL mm Φ108X830 Cooling Speed SH H M L SL r min 1250 1000 900 800 ...

Страница 11: ... Output W 60 Fan Motor RLA A Fan Motor Capacitor μF Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axial flow Fan Diameter mm Ф520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 Sound Pressure Level H M L dB A 60...

Страница 12: ... m2 23 34 Indoor Unit Indoor Unit Model 1 GWH24QE K3DNA1G I 2 GWH24QE K3DNA5G I 3 GWH24QE K3DNB2G I 4 GWH24QE K3DNB4G I 5 GWH24QE K3DNB6G I 6 GWH24QE K3DNB8G I 7 GWH24QE K3DNC2G I Indoor Unit Product Code 1 CB419N05300 2 CB425N03300 3 CB432N02400 4 CB434N02200 5 CB435N00300 CB435N00302 6 CB438N00700 7 CB439N00300 Fan Type Cross flow Fan Diameter Length DXL mm Φ108X830 Cooling Speed SH H M L SL r m...

Страница 13: ...r Output W 60 Fan Motor RLA A Fan Motor Capacitor μF Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axial flow Fan Diameter mm Ф520 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 Permissible Excessive Operating Pressure for the Suction Side MPa 2 5 Sound Pressure Level H M L dB A 6...

Страница 14: ...50 40 0 5 7 10 Conditions Indoor DB27 C WB19 C Indoor air flow Super High Pipe length 5m Conditions Indoor DB20 C WB15 C Indoor air flow Super High Pipe length 5m Outdoor temp C Outdoor temp C Capacity ratio Capacity ratio Cooling Heating Cooling Heating 32 33 34 35 36 37 38 39 43 15 10 5 40 41 42 100 105 95 90 85 80 75 70 65 60 55 50 110 100 90 80 70 60 50 40 0 5 7 10 Conditions Indoor DB27 C WB1...

Страница 15: ...and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency Hz Indoor Outdoor P MPa T1 C T2 C 20 7 6 18K 2 2 to 2 4 70 to 35 2 to 4 Super High High 65 24K 77 Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe temperature of condenser P Pressure at the side of big valve Connection p...

Страница 16: ...ical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit W 24K 18K D H 79 154 43 206 685 187 Φ70 Φ70 43 104 685 181 140 190 38 Φ55 Φ55 38 Model W H D 18K 970 300 224 24K 1078 325 246 Unit mm ...

Страница 17: ...14 Technical Information Service Manual 963 892 700 396 560 341 396 3 2 Outdoor Unit Unit mm ...

Страница 18: ...ING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electric expand valve Strainer Capillary Compressor Accumlator Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electric expand valve Stra...

Страница 19: ... swing angle of horizontal lover for this model GWH18QD K3DNA1G I CB419N05600 GWH18QD K3DNA5G I CB425N03400 CB425N03403 GWH18QD K3DNA6G I CB427N04400 GWH18QD K3DNB6G I CB435N00202 GWH24QE K3DNA1G I CB419N05302 GWH24QE K3DNA5G I CB425N03300 CB425N03303 GWH24QE K3DNA6G I CB427N04500 GWH24QE K3DNB4G I CB434N02202 GWH24QE K3DNB6G I CB435N00302 CB435N00303 7 6 1625 7 03 6 1625 7 03 6 1625 57 5220 78 67...

Страница 20: ...438N00700 GWH24QE K3DNC2G I CB439N00300 7 6 1625 7 03 6 1625 7 03 6 1625 57 5220 78 67 33 1 63 35 17 5 8 7 2 5 5 9 5 1 63 2 5 211 7 1 6 1 8 02725 2 7 50 1 3 803 3 8 1 9 325 725 3 7 1 0 287 225 81 7 3 3 1 5 725 2 3 60 1 02725 0 5 8 7 1 7 3 63 63 1 1 57 1 20 287 8 1 3 7 03 6 1625 867 7 03 6 1625 2875220 28778 7 03 6 1625 8 203 6 7 29 B 203 5 57 57 57 3 3 5 8 8 8 9 5 1 7B6 1625 29 5 2 3527 725 0 1 7 ...

Страница 21: ... 29 5 2 3527 725 7B6 1625 1 5 9 8 8 8 5 3 3 57 57 57 5 29 B 203 6 7 203 8 7 03 6 1625 28778 2875220 7 03 6 1625 867 7 03 6 1625 3 B 1 20 11 5 51 1 Please don t touch any electronic component or terminal when the machine is running stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock 3 7 03 6 1625 867 7 03 6 1625 2875220 28778 7 03 6 1625 8 203 6 7 29 203 ...

Страница 22: ... machine is running stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock 51 1 20 11 5 1 B 1 1 8 3 1 1 1 8 7 1 225 81 7 5 1 1 8 1 8 1 2 7 50 1 3 0 1 7 32 5 1 7 6 1625 203 9 8 35 17 5 8 7 2 5 3 1 1 02725 2 1 97 97 9 9 9 0 3 9 OHFWURQLF SDQVLRQ 9DOYH 3 1 3 5 1 0 1 7 29 5 2 3527 725 1 5 9 8 8 8 5 3 3 5 29 203 6 7 203 8 7 03 6 1625 28778 2875220 7 03 6 1625 86...

Страница 23: ...a only for the model with this function 6 Neutral wire interface of power supply 7 Interface of PG motor 8 Live wire interface of cold plasma only for the model with this function 9 Interface of up down swing motor 10 Interface of indoor fan feedback 11 Jumper cap 12 Interface of left right motor only for the model with this function 13 Interface of temperature sensor 14 Interface of display 1 2 3...

Страница 24: ...f temperature sensor 3 Terminal of electronic expansion valve 4 Terminal of outdoor fan 5 Terminal of 4 way valve 6 Terminal of compressorelectric heating 7 Terminal of chassis electric heating 8 Terminal of indoor unit and outdoor unit communication 9 Power supply live wire 10 Earthing wire 11 Power supply neutral wire 1 2 3 4 5 6 7 8 9 10 11 ...

Страница 25: ...otection 6 Terminal of electronic expansion valve 7 Terminal of outdoor fan 8 Terminal of compressor electric heating 9 Terminal of 4 way valve 10 Terminal of compressor wire 11 Terminal of chassis electric heating 12 Terminal of low ambient temperature cooling temperature sensor 13 Terminal of high pressure protection 14 Terminal of low pressure protection 15 Terminal of 2 way valve 16 Earthing w...

Страница 26: ...at mode Fan mode Dry mode Cool mode Auto mode Operation mode I feel Note After putting through the power the air conditioner will give out a sound Operation indictor is ON red indicator After that you can operate the air conditioner by using remote controller Under on status pressing the button on the remote controller the signal icon on the display of remote controller will blink once and the air...

Страница 27: ... indoor ambient temperature Set temperature range from remote controller 16 30 Fan speed auto low speed medium speed high speed 5 TURBO button Under COOL or HEAT mode press this button to turn to quick COOL or quick HEAT mode icon is displayed on remote controller Press this button again to exit turbo function and icon will disappear 6 button Press or button once increase or decrease set temperatu...

Страница 28: ... word ON will stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started up press TIMER ON button to cancel it TIMER OFF button TIMER OFF button can set the time for timer off After pressing this button icon disappears and the word OFF on remote controller blinks Press or button to adjust TIMER OFF setting After each pressing or button TIMER OFF setting will...

Страница 29: ... adjusted Under energy saving function set temperature can t be adjusted Press TURBO button and the remote controller won t send signal Sleep function and energy saving function can t operate at the same time If energy saving function has been set under cooling mode press sleep button will cancel energy saving function If sleep function has been set under cooling mode start up the energy saving fu...

Страница 30: ...t value under each condition Ambient temperature is Tamb Tcompensation for heat pump unit and Tamb for cooling only unit 4 If there s I feel function Tcompensation is 0 Others are same as above 5 Fan mode Under this mode indoor fan operates at set fan speed Compressor outdoor fan 4 way valve and electric heating tube stop operation Indoor fan can select to operate at high medium low or auto fan sp...

Страница 31: ... still in standby mode after finishing refrigerant recycling if the unit is in ON status before refrigerant recycling it will still run in original operation mode 11 Ambient temperature display control mode 1 When user set the remote controller to display set temperature corresponding remote control code 01 current set temperature will be displayed 2 Only when remote control signal is switched to ...

Страница 32: ...on 1 If the compressor is shut down and Tset up Tindoor ambient temperature Tcooling indoor ambient temperature compensation 0 5ºC start up the machine for cooling the cooling operation will start 2 During operations of cooling if 0ºC Tset up Tindoor ambient temperature Tcooling indoor ambient temperature compensation 2ºC the cooling operation will be still running 3 During operations of cooling i...

Страница 33: ...ched on 2 Defrosting a Defrosting starts the compressor is shut down and restarts it after 55 second delay b Defrosting ends the compressor stops then starts it after 55 second delay 2 Outer Fans Control Notes Only the outer fans run for at least 80s in each air flow speed can the air flow be switched After the outer fans run compulsively in high speed for 80s when the machine starts up control th...

Страница 34: ... it should not be started and should be stopped to treat according to the overload protection Clear the trouble at the mode of power turn off heating and the protection times are not counted 2 Frequency limited If TCooling overload frequency limited temperature Touter pipe TCooling overload frequency reducing temperature at normal speed you should limit the frequency raising of compressor 3 Reduci...

Страница 35: ...ture at normal speed during discharging you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and stopping machine If Tfrequency reducing temperature at normal speed during discharging TDischarge Tfrequency reducing temperature at high speed during discharging you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was runnin...

Страница 36: ... compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if T frequency reducing temperature at normal speed of module TModule you should stop the machine for module overheating protection 5 Power turn off If the TPower turn off temperature of module TModule you should stop the machine for module overheating protection If TModule TLimited frequenc...

Страница 37: ...regarded as four way valve reversion abnormity And then it can run if stop the reversion abnormity protection for four way valve 3 min and if it still can t run when the reversion abnormity protection for four way valve happens to stop working for 3 times in succession it is available if presses ON OFF Attention the protection shall be shielded during the testing mode and defrosting process and it...

Страница 38: ...op operation 3 When 0ºC Toutdoor amb 2ºC the electric heating of chassis will keep original status 7 Electric Heating Function of Compressor 1 When Toutdoor amb 5ºC compressor stops operation while the electric heating of compressor starts operation 2 When Toutdoor amb 2ºC the electric heating of compressor stops operation 3 When 5ºC Toutdoor amb 2ºC the electric heating of compressor will keep or...

Страница 39: ...unit adequately grounded The grounding wire can t be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air conditioner 8 The power cord and power connection wires can t be pressed by hard obj...

Страница 40: ...ing tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter 12 Soldering appliance refrigerant container ...

Страница 41: ...least 15cm At least 15cm At least 250cm Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S Space to the obstruction Drainage pipe Space to the wall Space to the obstruction Space to the obstructio Space to the obstruction A t l e a s t 3 0 0 c m At least 50cm At least 200cm At least 30cm At least 30cm At least 50cm ...

Страница 42: ...oor unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installation Note this flow is only for reference please find the more detailed installation steps in this section Select outdoor unit installation location Install the support of outdoor unit select it accor...

Страница 43: ... is first class electric appliance It must be properly grounding with specialized grounding device by a professional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air conditioner is grounding wire which can t be used for other purposes 3 The grounding resistance should comply with national electric safety regulations 4 The appli...

Страница 44: ...ly slant the piping hole on the wall slightly downward to the outdoor side with the gradient of 5 10 As show in Fig 2 Note 24K 18K Insulating pipe Torque wrench Open end wrench Indoor pipe Pipe Union nut Union nut Pipe joint Pipe Hex nut diameter mm Tightening torque N m Φ6 15 20 Φ9 52 30 40 Φ12 45 55 Φ16 60 65 Φ19 70 75 Refer to the following table for wrench moment of force Fig 5 Fig 6 Fig 7 5 C...

Страница 45: ... separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately at the end 2 Make the power connection wire go through the cable cross hole at the back of indoor unit and then pull it out from the front side As show in Fig 12 3 Remove the wire clip connect the power connection wire to the wiring terminal acc...

Страница 46: ... bolts As show in Fig 20 4 Connect Indoor and Outdoor Pipes 1 Remove the screw on the handle and valve cover of outdoor unit and then remove the handle and valve cover As show in Fig 21 2 Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe As show in Fig 22 3 Pretightening the union nut with hand 4 Tighten the union nut with torque wrench Fig 18 Fig 19 Fig 20 Fig 21 Fig 2...

Страница 47: ... charging vent of gas valve and then connect the other charging hose to the vacuum pump 3 Open the piezometer completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintain this status for 1 2min to check if the pressure of piezometer remains in 0 1MPa If the pressure decreases there may be leakage 5 Remove the piezometer open the ...

Страница 48: ...ature sensor is open short circuited F1 Indoor evaporator temperature sensor is open short circuited F2 Module temperature sensor is open short circuited P7 Outdoor ambient temperature sensor is open short circuited F3 Outdoor condenser tube temperature sensor is open short circuited F4 Outdoor discharge temperature sensor is open short circuited F5 Communication malfunction between indoor and out...

Страница 49: ...d then peformedischarging NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply is turned off charge charging voltage DC280V to 380V remains and disc harging takes a lot of time After turning off the power source if touching the charging section before discharging an electrical shock may be caused Discharge the electrol ytic capa...

Страница 50: ...oard broken Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes Yes No No No No No No Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace it with a temperature sensor with the same model Make the parts upright Is there sho...

Страница 51: ...the connection of PG motor control terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened Tighten the screw reassemble the blade motor and shaft bearing rubber base sub assy to make sure there is no foreign object between them Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No ...

Страница 52: ...f the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model Appearance of the jumper cap Assemble the jumper cap with the same model Insert the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainbo...

Страница 53: ...charges slowly The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 is displayed due to power off on while the capacitor discharges slowly U8 is still displayed The zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same mo...

Страница 54: ...e wiring diagram Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Main board matches with display board Main board of IDU matches with that of ODU Match correctly according to product specification Connection of communication wire is damaged or not Replace the connection wire Replace the main board of IDU Replace the main board of ODU End No N...

Страница 55: ...ion occurs after de energizing and turning on the unit Whether stop time for compressor is more than 3min No No No No No No No Yes Yes Yes Yes Yes No Yes Yes Yes Yes Whether valve of outdoor unit is opened Whether wire connection for compressor is correct Open the valve Is malfunction eliminated Connect wire correctly Is malfunction eliminated Replace electronic expansion valve Is malfunction elim...

Страница 56: ...such as clean heat exchanger improve ventilation etc Turn on the unit again after the power voltage is resumed Charge refrigerant according to service manual Whether the outdoor fan can operate normally Whether the radiation for the unit is in good condition Whether the input voltage is normal Whether refrigerant is superfluous Replace main board of outdoor unit Is malfunction eliminated Replace c...

Страница 57: ...lfunction diagnosis process Start the troubleshooting for temperature sensor Check the connection between temperature sensor and wiring terminal is loose or in poor connection Check whether the temperature sensor is normal according to the Resistance Value Table for Temperature Sensor Insert the temperature sensor well Is malfunction eliminated Is malfunction eliminated Replace the temperature sen...

Страница 58: ...der ambient temperature Whether the resistance 1KΩ Whether wire connection wire electronic expansion valve is in good condition Check the coil of electronic expansion valve If it s damaged please replace it Is malfunction eliminated If the refrigerant is leaking please add refrigerant according to Service Manual Is malfunction eliminated Replace main board of outdoor unit End Yes Yes Yes Yes No No...

Страница 59: ...t for 1 min There is malfunction for the detection circuit on main board of outdoor unit Check the input power and resume the power supply normal Is malfunction eliinated Measure the voltage at both ends of big electrolytic capacitor with the DC notch of universal meter Is the voltage more than 100V Check whether the input voltage is within the normal range Replace main board of outdoor unit End N...

Страница 60: ...fan terminal is connected well Whether the fan is damaged Replace fan capacitor unavailable for DC fan Replace outdoor fan Whether outdoor ambient temperature is more than 53o C Whether radiation inside or outdoor the unit is good Whether outdoor fan operates normally Replace main board of outdoor unit End No Yes Yes Yes Yes No No No Remark When overload protection occurs under cooling mode it s b...

Страница 61: ...ompressor wires are connected correctly Whether there re above circumstances Connect compressor wires according to correct wiring method Modify it according to Service Manual and then energize and turn on the unit Measure the resistance beween two phases of three phases of compressor Is resistance value normal Measure the resistance between three phase of compressor and copper pipe Is resistance v...

Страница 62: ...ion of PFC Protection HC Main check point Whether power supply is normal Malfunction diagnosis process Start Check whether power supply is normal Is power abnormal Replace main board of outdoor unit End Turn on the unit again after the power is resumed Yes No ...

Страница 63: ...d of outdoor unit is damaged Malfunction diagnosis process Communication malfunction De energize the unit and then check whether connection wires between indoor unit and outdoor unit and wiring inside the electric box are correct Are wires are connected correctly Replace main board of indoor unit Is malfunction eliminated End Replace main board of outdoor unit Connect wire correctly according to c...

Страница 64: ...e stop time for compressor is more than 3min Whether compressor wires are connected correctly The stop time for unit is not enough high pressure and low pressure of system are unbalanced please wait for 3min and then restart up the unit Whether the refrigerant volume is superfluous Please charge the refrigerant according to Service Manual Is malfunction eliminated Replace main board of outdoor uni...

Страница 65: ...e the compressor Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is abnormal Fan speed is too low or fan doesn t rotate Measure the current of live wire on the main board with a clamp ampere meter Is the current higher than the value of the overcurrent protection Is ...

Страница 66: ...etection circuit malfunctions of phase current of compressor U1 Hardware of main board is damaged Please replace main board 4 DC busbar voltage is too high PH Input voltage is too high or unstable Hardware of main board is damaged 5 DC busbar voltage is too low PL Input voltage is too low or unstable Hardware of main board is damaged 6 Malfunction of ODU DC fan L3 The wire terminal of outdoor fan ...

Страница 67: ...hod for details Malfunction of compressor Compressor can t operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power plug...

Страница 68: ...in pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminating method air conditioner status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires according to wiring diagram to make sure al...

Страница 69: ...intenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit GWH18QD K3DNA1G I GWH18QD K3DNA2G I GWH18QD K3DNA5G I CB425N03403 GWH18QD K3DNA6G I GWH18QD K3DNB6G I GWH18QD K3DNC2G I A2 A6 display A1 B6 C2 display ...

Страница 70: ...000014 01002000014 1 18 Cross Flow Fan 10352060 10352060 1 19 Fan Motor 15012145 15012145 1 20 Motor Press Plate 26112511 26112511 1 21 Wall Mounting Frame 01362026 01362026 1 22 Connecting pipe clamp 2611218801 2611218801 1 23 Crank 73012005 73012005 1 24 Stepping Motor 1521240212 1521240212 1 25 Drainage hose 05230014 05230014 1 26 Electric Box Assy 10000201045 10000201044 1 27 Lower Shield of E...

Страница 71: ...002000014 01002000014 1 18 Cross Flow Fan 10352060 10352060 1 19 Fan Motor 1501214502 1501214502 1 20 Motor Press Plate 26112511 26112511 1 21 Wall Mounting Frame 01252033 01362026 1 22 Connecting pipe clamp 2611218801 2611218801 1 23 Crank 73012005 73012005 1 24 Stepping Motor 1521240212 1521240212 1 25 Drainage hose 05230014 05230014 1 26 Electric Box Assy 10000202739 10000202840 1 27 Lower Shie...

Страница 72: ...014 1 18 Cross Flow Fan 10352060 10352060 1 19 Fan Motor 1501214502 1501214502 1 20 Motor Press Plate 26112511 26112511 1 21 Wall Mounting Frame 01362026 01362026 1 22 Connecting pipe clamp 2611218801 2611218801 1 23 Crank 73012005 73012005 1 24 Stepping Motor 1521240212 1521240212 1 25 Drainage hose 05230014 05230014 1 26 Electric Box Assy 10000202378 10000202839 1 27 Lower Shield of Electric Box...

Страница 73: ...01002000014 1 18 Cross Flow Fan 10352060 10352060 1 19 Fan Motor 1501214502 1501214502 1 20 Motor Press Plate 26112511 26112511 1 21 Wall Mounting Frame 01362026 01362026 1 22 Connecting pipe clamp 2611218801 2611218801 1 23 Crank 73012005 73012005 1 24 Stepping Motor 1521240212 1521240212 1 25 Drainage hose 05230014 05230014 1 26 Electric Box Assy 10000202378 10000202950 1 27 Lower Shield of Elec...

Страница 74: ...71 Installation and Maintenance Service Manual GWH24QE K3DNA1G I GWH24QE K3DNA5G I CB425N03303 GWH24QE K3DNA6G I GWH24QE K3DNB6G I GWH24QE K3DNC2G I A2 A6 display A1 A5 B6 C2 display ...

Страница 75: ...Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting pipe clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 10512738 10512738 1 24 Axile Bush 10542036 10542036 2 25 Electric Box 20112211 20112211 1 26 Terminal Board 42011...

Страница 76: ... 1 16 Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting pipe clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051232001 1051232001 1 24 Axile Bush 10542036 10542036 2 25 Electric Box 20112211 20112211 1 26 Terminal B...

Страница 77: ... 1 16 Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting pipe clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051232001 1051273802 1 24 Axile Bush 10542036 10542036 2 25 Electric Box 20112211 20112211 1 26 Terminal B...

Страница 78: ...Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting pipe clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051232001 1051232001 1 24 Axile Bush 10542036 10542036 2 25 Electric Box 20112211 20112211 1 26 Terminal Board 4...

Страница 79: ...asma Generator 11140016 1 16 Wall Mounting Frame 01252229 1 17 Motor Press Plate 26112515 1 18 Fan Motor 15012145 1 19 Connecting pipe clamp 26112514 1 20 Drainage Hose 0523001405 1 21 Stepping Motor 1521240212 1 22 Crank 73012005 1 23 Guide Louver 1051232001 1 24 Axile Bush 10542036 2 25 Electric Box 20112211 1 26 Terminal Board 42011233 1 27 Electric Box Cover2 20112210 1 28 Main Board 301380004...

Страница 80: ...77 Installation and Maintenance Service Manual GWH18QD K3DNA5G I CB425N03400 CB425N03402 GWH18QD K3DNB2G I GWH18QD K3DNB8G I GWH24QE K3DNA5G I CB425N03302 GWH24QE K3DNB2G I GWH24QE K3DNB8G I ...

Страница 81: ...1 15 Cold Plasma Generator 11140016 1 16 Wall Mounting Frame 01362026 01362026 1 17 Motor Press Plate 26112511 26112511 1 18 Fan Motor 1501214502 1501214502 1 19 Connecting Pipe Clamp 2611218801 2611218801 1 20 Drainage Hose 05230014 05230014 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051273402 1051273402 1 24 Axile Bush 10542036 10542036 2 25 Electri...

Страница 82: ...ld Plasma Generator 1114001602 1114001602 1 16 Wall Mounting Frame 01362026 01362026 1 17 Motor Press Plate 26112511 26112511 1 18 Fan Motor 1501214502 1501214502 1 19 Connecting Pipe Clamp 2611218801 2611218801 1 20 Drainage Hose 05230014 05230014 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051276501 1051276501 1 24 Axile Bush 10542036 10542036 2 25 E...

Страница 83: ... 15 Cold Plasma Generator 11140016 1 16 Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting Pipe Clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051273802 1051273802 1 24 Axile Bush 10542036 10542036 2 25 Electric Box...

Страница 84: ...d Plasma Generator 11140016 1114001602 1 16 Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting Pipe Clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051273802 1051232001 1 24 Axile Bush 10542036 10542036 2 25 Electric...

Страница 85: ...porator Assy 01002988 1 15 Cold Plasma Generator 1114001602 1 16 Wall Mounting Frame 01252229 1 17 Motor Press Plate 26112515 1 18 Fan Motor 15012145 1 19 Connecting Pipe Clamp 26112514 1 20 Drainage Hose 0523001405 1 21 Stepping Motor 1521240212 1 22 Crank 73012005 1 23 Guide Louver 1051232001 1 24 Axile Bush 10542036 2 25 Electric Box 20112211 1 26 Terminal Board 42011233 1 27 Electric Box Cover...

Страница 86: ...83 Installation and Maintenance Service Manual GWH18QD K3DNB4G I GWH24QE K3DNB4G I ...

Страница 87: ... 15 Cold Plasma Generator 1114001602 1 16 Wall Mounting Frame 01252229 01252229 1 17 Motor Press Plate 26112515 26112515 1 18 Fan Motor 15012145 15012145 1 19 Connecting pipe clamp 26112514 26112514 1 20 Drainage Hose 0523001405 0523001405 1 21 Stepping Motor 1521240212 1521240212 1 22 Crank 73012005 73012005 1 23 Guide Louver 1051232001 1051232001 1 24 Axile Bush 10542036 10542036 2 25 Electric B...

Страница 88: ...rator Assy 01002000014 1 15 Cold Plasma Generator 1114001602 1 16 Wall Mounting Frame 01362026 1 17 Motor Press Plate 26112511 1 18 Fan Motor 1501214502 1 19 Connecting pipe clamp 2611218801 1 20 Drainage Hose 05230014 1 21 Stepping Motor 1521240212 1 22 Crank 73012005 1 23 Guide Louver 1051276501 1 24 Axile Bush 10542036 2 25 Electric Box 20112211 1 26 Terminal Board 42011233 1 27 Electric Box Co...

Страница 89: ...86 Installation and Maintenance Service Manual 10 2 Outdoor Unit ...

Страница 90: ... 0130509402P 0130509402P 1 13 Valve cover 22245002 22245002 1 14 Handle 26233053 26233053 1 15 Wiring Clamp 26115004 26115004 1 16 Rear Grill 01473043 01473043 1 17 Condenser Assy 01100200126 01100200126 1 18 Reactor 19 Clapboard Assy 01233153 01233153 1 20 Coping 01255005P 01255005P 1 21 Supporting Board Condenser 01795010 01795010 1 22 Motor Support Sub Assy 01705036 01705036 1 23 Fan Motor 1501...

Страница 91: ...ide Plate 0130509001P 0130509001P 1 13 Valve cover 22245002 22245002 1 14 Handle 26233053 26233053 1 15 Wiring Clamp 16 Rear Grill 01475020 01475020 1 17 Condenser Assy 01103000090 01103000090 1 18 Reactor 19 Clapboard Assy 01235081 01235081 1 20 Coping 01255005P 01255005P 1 21 Supporting Board Condenser 01795031 01795031 1 22 Motor Support Sub Assy 01705067 01705067 1 23 Fan Motor 1501506402 1501...

Страница 92: ...ove on the front case Then remove the leftand right filters one by one Push out the axile bush on horizontal louver Bend the horizontal louver with hand and then separate the horizontal louver from the crank shaft of step motor to remove it Separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel Screw off the 2 screws that are locking the display b...

Страница 93: ...ectric box cover 2 Remove the screws fixing front case Note Open the screw caps before removing the screws arround the air outlet The quantity of screws fixing the front case sub assy is different for different models Loosen the connection clasps between front case sub assy and bottom case Lift up the front case sub assy and take it out Screw off the 2 screws that are locking the display board Not...

Страница 94: ...crew fixing electric box assy Swing motor Indoor tube temperature sensor Main board Wiring terminal of motor Wiring terminal of stepping motor Grounding Wire binder Cut off the wire binder and pull out the indoor tube temperature sensor Screw off one grounding screw Remove the wiring terminals of motor and stepping motor Remove the electric box assy Screw off the screws that are locking each lead ...

Страница 95: ...cking the wire clip and loosen the power cord Remove the wiring terminal of power cord Lift up the main board and take it off Instruction Some wiring terminal of this products is with lock catch and other devices The pulling method is as below Remove the soft sheath for some terminals at first hold the circlip and then pull out the terminals Pull out the holder for some terminals at first holder i...

Страница 96: ...n evaporator up wards to remove it Remove the screws fixing motor clamp and then remove the motor clamp Remove the screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Remove the screw fixing step motor and then remove the step motor d a b ...

Страница 97: ...e and then remove the valve cover Remove the screws connecting the top cover with outer case right side plate and left side plate lift the top cover upwards to remove it handle right side plate screws top cover a b 1 Remove big handle valve cover and top cover screws Procedure Step Warning Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigeran...

Страница 98: ...t side plate and then remove the outer case Remove the 3 screws connecting the grille with right side plate and left side plate and then remove the rear guard grille Remove the screws connecting the right side plate with electric box assy valve support chassis and condenser side plate and then remove the right side plate rear guard grille right side plate a b a b 2 Remove grille and cabinet screws...

Страница 99: ...he grounding wire screw on the electric box assy and then remove the grounding wire See fig 1 a c b Disconnect the wiring terminals of reactor compressor high and low pressure switch compressor overload protector temperature sensor outdoor fan motor and 4 way valve See fig 2 Note keep pressing the circlip when disconnecting the wiring terminal of reactor keep pressing the retainer when disconnecti...

Страница 100: ... upwards to remove it d e f g Push the electric box cover in the direction of arrow to make the clasp at the right side separate from the groove then pull it in the opposite direction to make the clasp at the lift side separate from the groove and then remove the electric box cover Remove the 5 screws connecting the mainboard and then remove the mainboard Remove the 9 screws fixing the radiator an...

Страница 101: ...the 3 screws connecting the isolation plate and chassis and then remove the isolation plate Remove the 4 screws connecting the reactor and isolation plate and then remove the reactor reactor isolation plate a b screws screws Note these two screws are at the side of motor support screws screws 6 remove the soundproof sponge Tear off the sticking stripe and then remove the soundproof sponge Procedur...

Страница 102: ...he welding joint wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by high temperature bolts liquid valve gas valve 9 Remove 4 way valve assy Remove the 2 screws connecting the motor support and chassis and then loosen the stopper to remove the motor support 4 way valve assy Unsolder the welding joints connecting the 4 way valve assy with capillary sub assy compres...

Страница 103: ... 12 Remove compressor Remove the 3 foot nuts fixing compressor and then lift the compressor upwards to remove the compressor and damping cushion Note Keep the ports of discharge pipe and suction pipe from foreign objects 11 Remove condenser damping cushion condenser screws motor Remove the 6 screws fixing the motor and then remove the motor b screw screw Procedure Step ...

Страница 104: ...5 56 55 4 13 79 80 78 8 26 34 35 33 8 1 57 58 57 2 14 81 80 6 27 36 35 6 2 59 60 59 15 82 83 82 4 28 37 38 37 4 3 61 62 60 8 16 84 85 84 2 29 39 40 39 2 4 63 62 6 17 86 87 86 30 41 42 41 5 64 65 64 4 18 88 89 87 8 31 43 44 42 8 6 66 67 66 2 19 90 89 6 32 45 44 6 7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 ...

Страница 105: ...lowing steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and prevent the burrs from getting into the pipe C Put on suitable insulating pipe D Put on the union nut Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the ...

Страница 106: ... 66 88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120 0 577 4 40 09 43 7 065 82 1 754 121 0 561 5 38 15 4...

Страница 107: ...1 0 983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 56 19 42 9 803 81 2 415 120 0 769 4 53 46 43 9 42 82 2 339 121 0 746 5 50 87 44 9 054 83 2 265 122 0 729 6 48 4...

Страница 108: ... 74 62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 274 29 41 34 68 9 17 107 2 72 9 259 3 30 39 61 69 8 85 108 2 64 8 245 6 31 37 96 70 8 56 109 2 57 7 232 6 32 36 38 71 8 27 110 2 50 6 220 5 33 34 88 72 7 99 111 2 43 5 209 34 33 45 73 7 73 112 2 37...

Страница 109: ... Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 Email gree gree com cn Http www gree com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add Unit 2612 26 F Miramar Tower 132 Nathan Road TST Kowloon HK Tel 852 31658898 Fax 852 31651029 JF00302255 ...

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