Table of Contents
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Change for Life
Service Manual
GWH18RC-K3DNA2C
GWH18RC-K3DNA3C
GWH18RC-K3DNA5C
GWH18RC-K3DNA6C
GWH18RC-K3DNA8C
GWH18RC-K3DNA9C(white panel)
GWH18RC-K3DNA9C(silver grey panel)
GWH24RD-K3DNA2C
GWH24RD-K3DNA3C
GWH24RD-K3DNA5C
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
GWH24RD-K3DNA6C
GWH24RD-K3DNA8C
(Refrigerant R410A)
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Table of Contents
Troubleshooting
Related Manuals for Gree GWH18RC-K3DNA2C
Summary of Contents for Gree GWH18RC-K3DNA2C
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Page 1: Service Manual
Change for Life Service Manual GWH18RC-K3DNA2C GWH24RD-K3DNA6C GWH18RC-K3DNA3C GWH24RD-K3DNA8C GWH18RC-K3DNA5C (Refrigerant R410A) GWH18RC-K3DNA6C GWH18RC-K3DNA8C GWH18RC-K3DNA9C(white panel) GWH18RC-K3DNA9C(silver grey panel) GWH24RD-K3DNA2C GWH24RD-K3DNA3C GWH24RD-K3DNA5C GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI... -
Page 2: Table Of Contents
Service Manual Table of Contents Part : Technical Information ................. 1 1. Summary ........................1 ......................3 ......................3 2.2 Operation Characteristic Curve ..................9 2.3 Capacity Variation Ratio According to Temperature ............9 2.4 Cooling and Heating Data Sheet in Rated Frequency ............. 10 2.5 Noise Curve........................ - Page 3 Service Manual 9. Maintenance ......................... 40 9.1 Precautions before Maintenance..................40 9.2 Error Code List ........................41 9.3 Troubleshooting for Main Malfunction ................. 46 9.4 Troubleshooting for Normal Malfunction................59 10. Exploded View and Parts List ..............61 10.1 Indoor Unit......................... 61 10.2 Outdoor Unit ........................
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Page 4: Part : Technical Information
Service Manual Part : Technical Information 1. Summary Indoor Unit: GWH18RC-K3DNA2C/I GWH24RD-K3DNA2C/I GWH18RC-K3DNA3C/I GWH24RD-K3DNA3C/I GWH18RC-K3DNA5C/I GWH24RD-K3DNA5C/I GWH18RC-K3DNA6C/I GWH24RD-K3DNA6C/I GWH18RC-K3DNA8C/I GWH24RD-K3DNA8C/I Technical Information... - Page 5 Service Manual GWH18RC-K3DNA9C/I(white panel) GWH18RC-K3DNA9C/I(silver grey panel) Outdoor Unit: GWH18RC-K3DNA3C/O GWH24RD-K3DNA3C/O GWH18RC-K3DNA8C/O GWH24RD-K3DNA8C/O Remote Controller: YAA1FB Technical Information...
- Page 6 Service Manual 1.GWH18RC-K3DNA3C 1.GWH24RD-K3DNA3C Model 2.GWH18RC-K3DNA2C 2.GWH24RD-K3DNA2C 3.GWH18RC-K3DNA6C 3.GWH24RD-K3DNA6C 1.CB302001100 1.CB302001400 Product Code 2.CB301001300 2.CB301001400 3.CB305000300 3.CB305000400 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity 5275 6450 Heating Capacity 5275 6450 Cooling Power Input...
- Page 7 Service Manual Model of Outdoor Unit GWH18RC-K3DNA3C/O GWH24RD-K3DNA3C/O Outdoor Unit Product Code CB302W01100 CB302W01400 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD CO,LTD Compressor Model QXA-B141zF030A QXAS-D23zX090B Compressor Oil 68EP RB68EP Compressor Type Rotary Rotary L.R.A. 25.00 25.00 Compressor RLA 7.20 11.50...
- Page 8 Service Manual GWH18RC-K3DNA8C GWH24RD-K3DNA8C Model GWH24RD-K3DNA5C GWH18RC-K3DNA5C CB313000400 CB313000300 Product Code CB304002200 CB304002300 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 5275 6450 Heating Capacity 5600 6450 Cooling Power Input 1620 1940 Heating Power Input 1650 1910...
- Page 9 Service Manual Model of Outdoor Unit GWH18RC-K3DNA8C/O GWH24RD-K3DNA8C/O Outdoor Unit Product Code CB313W00400 CB313000300 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD CO,LTD Compressor Model QXA-B141zF030A QXAS-D23zX090B Compressor Oil 68EP RB68EP Compressor Type Rotary Rotary L.R.A. 25.00 25.00 Compressor RLA 7.20 11.50...
- Page 10 Service Manual GWH18RC-K3DNA9C(white panel) Model GWH18RC-K3DNA9C(silver grey panel) CB314000300 Product Code CB314000301 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5275 Heating Capacity 5600 Cooling Power Input 1620 Heating Power Input 1650 Cooling Power Current 7.19 Heating Power Current 7.10...
- Page 11 Service Manual Model of Outdoor Unit GWH18RC-K3DNA8C/O Outdoor Unit Product Code CB313W00400 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-B141zF030A Compressor Oil 68EP Compressor Type Rotary L.R.A. 25.00 Compressor RLA 7.20 Compressor Power Input 1440 Overload Protector 1NT11L-6233or HPC 115/95 or KSD115 Throttling Method Electron expansion valve Operation temp...
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Page 12: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor:DB27°C/WB19°C Outdoor:DB35°C/WB24°C Indoor air flow:Super High 230V Pipe length:5m 230V 240V Conditions Indoor:DB20°C/WB15°C 240V Outdoor:DB7°C/WB6°C Indoor air flow:Super High Pipe length:5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature... -
Page 13: Cooling And Heating Data Sheet In Rated Frequency
Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling condition( Fan speed Fan speed connecting indoor and temperature of heat Compressor (DB/WB) Model of indoor of outdoor outdoor unit exchanger revolution (rps) -
Page 14: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 18K: 24K: Unit:mm Model A9 panel(18K) Other panel(18K) 1018 Technical Information... -
Page 15: Outdoor Unit
Service Manual 3.2 Outdoor Unit Model:GWH18RC-K3DNA3C/O Unit:mm Model:GWH24RD-K3DNA3C/O 1000 Unit:mm Technical Information... - Page 16 Service Manual GWH18RC-K3DNA8C/O Unit:mm GWH24RD-K3DNA8C/O 1000 Unit:mm Installation and Maintenance...
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Page 17: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction exchanger (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Strainer COOLING HEATING Liquid pipe:1/4" (6mm) Gas pipe:1/2" (12mm)18K Gas pipe:5/8"... -
Page 18: Electrical Part
Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. Models:GWH18RC-K3DNA3C/I GWH18RC-K3DNA2C/I GWH24RD-K3DNA3C/I GWH24RD-K3DNA2C/I GWH18RC-K3DNA6C/I GWH24RD-K3DNA6C/I POWER Technical Information... - Page 19 Service Manual Models:GWH18RC-K3DNA8C/I GWH24RD-K3DNA8C/I GWH24RD-K3DNA5C/I TUBE ROOM MOTOR TEMP. SENSOR TEMP. SENSOR TERMINAL TUBE ROOM BLOCK N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP AC-L YEGN (SWING) C0NNECTI N G SWING-UD DISP1 DISP2 CABLE HEALTH-L HEALTH-N YEGN EVAPORATOR COLD PLASMA GENERATOR RECEIVER AND SWING MOTOR DISPLAY BOARD...
- Page 20 Service Manual Model:GWH18RC-K3DNA3C/O OVERLOAD WARNING COMP. PROTECTOR Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at COMP 6YEGN AP1 is higher than 30V to prevent the risk of electrical shock! OUTTUBE OUTROOM EXHAUST U(R) V(S) W(C,T) MAGNETIC TEMP.
- Page 21 Service Manual Model:GWH18RC-K3DNA8C/O Model:GWH24RD-K3DNA8C/O Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electric shock ! These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
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Page 22: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit: Name Interface of live wire Fuse Interface of neutral wire Interface of neutral wire for health function Control interface of PG motor Interface of live wire for health function Interface of indoor unit and outdoor unit communication Auto button... - Page 23 Service Manual Outdoor Unit GWH18RC-K3DNA3C/O GWH18RC-K3DNA8C/O ● Top view Name Terminal of compressor wire Terminal of outdoor tube temperature sensor Terminal of compressor overload protection Te r m i n a l o f o u t d o o r temperature sensor Terminal of electronic expansion valve...
- Page 24 Service Manual GWH24RD-K3DNA3C/O GWH24RD-K3DNA8C/O Top view Name Terminal of compressor wire Terminal of low pressure protection Terminal of compressor overload protection Te r m i n a l o f o u t d o o r temperature sensor Terminal of electronic expansion valve Terminal of outdoor fan Terminal of 4-way valve...
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Page 25: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button - button + button MODE button H O U R ONOFF FAN button SWING button I FEEL button button SLEEP button TEMP button TIMER-ON button CLOCK button TIMER-OFF button TURBO... - Page 26 Service Manual Press this button to turn on the unit. Press this button again to turn off the unit. 2. - Button Press this button to decrease set temperature. Holding it down above 2 seconds rapidly decreases set temperature. In AUTO mode, set temperature is not adjustable.
- Page 27 Service Manual When selecting " " by remote controller or no display, temperature indicator on indoor unit displays set temperature. When selecting " " by remote controller, temperature indicator on indoor unit displays indoor ambient temperature. When selecting " " by remote controller, temperature indicator on indoor unit displays outdoor ambient temperature. Outdoor ambient temperature display may can’t be selected for some models.When indoor unit receives "...
- Page 28 Service Manual Replacement of Batteries in Remote Controller 1.Press the back side of remote controller marked with“ of battery box along the arrow direction. 2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of “+” polar and “-“ polar are correct. 3.
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Page 29: Brief Description Of Modes And Functions
Service Manual 6.2 Brief Description of Modes and Functions Indoor Unit Temperature Parameter Room setting temperature (T preset Room ambient temperature (T .) (temperature sensor :15K, partial pressure resistance:15K) Surface temperature of copper pipe for indoor heat exchanger (T ) (temperature sensor: 20K, partial pressure resistance: 20K) indoor tube 1. - Page 30 Service Manual When multiple malfunctions occurred simultaneously, malfunction protection codes will be displayed in cycle. 3.Other Control Target (1) Up&down swing function: the mode for swing motor is MP28VB(18K),MP35XX(24K). air outlet. （0℃） If swing function has not been set after startup of the unit, up & down horizontal louver will clockwise turn to position D in HEAT mode, or clockwise turn to level position L in other modes.
- Page 31 Service Manual (3) Timer Change: Timer ON and Timer OFF can be set via remote ON/OFF button,Timer time can be reset and the system will operate according to the latest setting. When the unit is on and Timer ON and Timer OFF are both set,the system will operate according to the set state.When the timer off time is reathed,the system will stop.
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Page 32: Outdoor Units
Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the input parameter compensation function As the instruction feature of split unit, concerning the comfortable, in heating mode, the indoor ambient temperature of compressor stopping time is higher than preset temperature. (2) Check effective judgment controls of parameters Effective judgment function of the outdoor exhaust temperature thermo-bulb When conditions a and b are satisfied, the outdoor exhaust temperature thermo-bulb is judged not to be connected into place, the... - Page 33 Service Manual (6) Compressor Control 1. The frequency of compressor will be controlled with the relationship of ambient temperature and preset temperature and changing speed of ambient temperature; 2. Start the compressor after starting cooling, heating, dry operations, and the outdoor fan start for 5s; 3.
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Page 34: Part : Installation And Maintenance
Service Manual Part : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. - Page 35 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
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Page 36: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Installation dimension diagram Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe Installation and Maintenance... -
Page 37: Installation Procedures
Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit... -
Page 38: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 8.4 Electric Connection Requirement Name Name 1. Safety precaution Indoor unit Sealing gum (1) Must follow the electric safety regulations when installing Outdoor unit Wrapping tape the unit. Support of outdoor (2) According to the local safety regulations, use qualified Connection pipe unit power supply circuit and air switch. - Page 39 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show in Fig.5) pulling the frame. If the plastic expansion particle is loose, (2) Pretightening the union nut with hand.
- Page 40 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord then take down the cover.(As show in Fig.11) and drain hose with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord Panel...
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Page 41: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: 1. Fix the support of outdoor unit(select it according to the Hex nut diameter(mm) Tightening torque(N.m) actual installation situation) 15~20 30~40 (1) Select installation location according to the house structure. 45~55 (2) Fix the support of outdoor unit on the selected location with 60~65... -
Page 42: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet can't be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.26) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been... -
Page 43: Maintenance
Service Manual 9. Maintenance 9.1 Precautions before Maintenance There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within 20min after cutting the power will cause electric shock. -
Page 44: Error Code List
Service Manual 9.2 Error Code List Display Method of Outdoor Unit (Indicator has 3 kinds of Display Method of Indoor Unit display status and they will be displayed circularly every 5s.) Malfunction A/C status Possible Reasons Indicator Display (during Name blinking, ON 0.5s and OFF Illuminated Blink... - Page 45 Service Manual 1.Poor insert for GPF Indoor unit off 3s 2.Indoor control board AP1 motor no blink 11 Whole unit will stop to run malfunction feedback times 3.Indoor motor M1 malfunction Indoor control board AP1 jump Jump wire cap off 3s cap poor connected please malfunction blink...
- Page 46 Service Manual Defrosting will occur in Its the normal state heating mode. Compressor will operate O N 1 0 s while indoor fan will stop Defrosting and OFF operation. 0.5s During cooling and drying 1. Wiring terminal OVC-COMP operation, compressor will is loosened.
- Page 47 Service Manual During cooling and drying Replace outdoor control operation, compressor will panel AP1 OFF 3S stop EEPROM and blink while indoor fan will operate; malfunction 15 times During heating operation, complete unit will stop During cooling and drying Refer to the part three— operation, compressor will charging malfunction Charging...
- Page 48 Service Manual 1.Power supply is Off 3s abnormal Malfunction 2.Detection circuit of zero-cross blink Whole unit will stop to run of indoor control derection mainboard is times abnormal Cooling O f f 3 s dehumidifying;compressor C o m p r e s s o r Pls refer to blink 7 stops running,indoor fan...
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Page 49: Troubleshooting For Main Malfunction
Service Manual 9.3 Troubleshooting for Main Malfunction 1. Malfunction of Temperature Sensor F1, F2 Troubleshooting for F1,F2 malfunction the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright... - Page 50 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated...
- Page 51 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the...
- Page 52 Service Manual 4. Malfunction of Overcurrent Protection E5 Troubleshooting for E5 malfunction Is the supply voltage unstable Normal fluctuation is within 10 % of the rated Malfunction is with big fluctuation? voltage on the nameplate eliminated Is the supply voltage too low Malfunction is Adjust the supply voltage to maintain it within Malfunction is...
- Page 53 Service Manual 5. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization The unit returns to normal. Conclusion:U8 is displayed due U8 is still to instant energization afte de- displayed energization while the capacitor discharges slowly.
- Page 54 Service Manual 6.Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: Detect if the voltage of L and N terminal of XT wiring board is between 210VAC-240VAC by alternating voltage meter; Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends...
- Page 55 Service Manual 7.IPM protection(H5), desynchronizing malfunction(H7), overcurrent of compressor phase current (P5) (AP1 below means control board of outdoor unit) Main detection points: Is voltage input within the normal range Heat exchange of unit is not good (heat exchanger is dirty and unit radiating environment is bad); Malfunction diagnosis process: H5, H7 or P5 is displayed after...
- Page 56 Service Manual 8.High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: If the outdoor ambient temperature is in normal range; If the indoor and outdoor fan are running normally; If the radiating environment of indoor and outdoor unit is good. E8 is displayed Normal protection, please If the outdoor...
- Page 57 Service Manual 9.Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: Turn on the unit The stop time is not sufficient and If the stop time of compressor the high and low pressure of system is more than 3min? is not balanced , please start the unit after 3min...
- Page 58 Service Manual 10.Overload and high discharge temperature malfunction Main detection points: Installation and Maintenance...
- Page 59 Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be＜1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
- Page 60 Service Manual 11.PFC (correction for power factor) malfunction (outdoor unit malfunction) Main detection points: Check if power plug is connected well with the socket Malfunction diagnosis process: start If power plug is connected Is the malfunction Connect the plug correctly well with the socket eliminated? Check the connection wire...
- Page 61 Service Manual 12.Communication malfunction (E6) Main detection points: Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; Malfunction diagnosis process: If the unit operates normally before malfunction Check the connection wire according to the wiring diagram.
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Page 62: Troubleshooting For Normal Malfunction
Service Manual 9.4 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting N o p o w e r s u p p l y, o r p o o r After energization, operation indicator isn’t bright wait for power recovery. - Page 63 Service Manual 4. ODU fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram Measure the capacity of fan capacitor with an...
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Page 64: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit (1) Models:GWH18RC-K3DNA3C/I GWH18RC-K3DNA2C/I GWH18RC-K3DNA5C/I Installation and Maintenance... - Page 65 Service Manual Part Code Description GWH18RC-K3DNA3C/I GWH18RC-K3DNA2C/I GWH18RC-K3DNA5C/I Product Code CB302N01100 CB301N01300 CB304N02200 Front Panel Assy 20012760 20012751 20012914 Display Board 30565121 30565120 30565139 Filter Sub-Assy 1112208901 1112208901 11122089 Screw Cover 24252016 242520179 242520179 Front Case Sub-Assy 20012667 2001266701 2001266701...
- Page 66 Service Manual (2) Models:GWH18RC-K3DNA8C/I GWH18RC-K3DNA6C/I Installation and Maintenance...
- Page 67 Service Manual Part Code Description GWH18RC-K3DNA8C/I GWH18RC-K3DNA6C/I Product Code CB313N00400 CB305N00300 Front Panel Assy 20022518 20022253 Display Board 30565235 30565207 Filter Sub-Assy 1112208901 1112208901 Screw Cover 24252016 242520179 Front Case Sub-assy 20012667 2001266701 Rear Case assy 22202193 22202193 Guide Louver 10512205 1051220501 Air Louver 1...
- Page 68 Service Manual (3) Models:GWH18RC-K3DNA9C/I(white panel) GWH18RC-K3DNA9C/I(silver grey panel) Installation and Maintenance...
- Page 69 Service Manual Part Code Description GWH18RC-K3DNA9C/I GWH18RC-K3DNA9C/I (silver grey panel) (white panel) Product Code CB314N00300 CB314N00301 Front Panel 20022602S 20022253 Display Board 30566014 30565207 Filter Sub-Assy 11122089 1112208901 Screw Cover 24252016 242520179 Front Case Sub-Assy 20012667 2001266701 Rear Case assy 22202193 22202193 Guide Louver...
- Page 70 Service Manual (4) Models:GWH24RD-K3DNA2C/I GWH24RD-K3DNA3C/I Installation and Maintenance...
- Page 71 Service Manual Part Code Description GWH24RD-K3DNA2C/I GWH24RD-K3DNA3C/I Product Code CB301N01400 CB302N01400 Front Panel Assy 20012757 20012871 Filter Sub-Assy 11122091 11122091 Screw Cover 242520179 24252016 Front Case 2001297005 2001297402 Air Louver 1 1051215901 1051215901 Helicoid Tongue 2611218702 2611218702 Left Axile Bush 10512037 10512037 Rear Case assy...
- Page 72 Service Manual (5) Models:GWH24RD-K3DNA8C/I GWH24RD-K3DNA6C/I GWH24RD-K3DNA5C/I Installation and Maintenance...
- Page 73 Service Manual Part Code Description GWH24RD-K3DNA8C/I GWH24RD-K3DNA6C/I GWH24RD-K3DNA5C/I Product Code CB313N00300 CB305N00400 CB304N02300 Front Panel Assy 20022513 20022278 20012957 Filter Sub-Assy 11122091 11122091 11122091 Screw Cover 24252016 242520179 242520179 Front Case 2001297002 2001297401 2001297401 Air Louver 1 1051215901 1051215901 1051215901 Helicoid Tongue 2611218702 2611218702...
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Page 74: Outdoor Unit
Service Manual 10.2 Outdoor Unit (1) Model:GWH18RC-K3DNA3C/O Installation and Maintenance... - Page 75 Service Manual Part Code Description GWH18RC-K3DNA3C/O Product Code CB302W01100 Front Grill 22413025 Front Panel 01535013P Drainage Connecter 06123401 Chassis Sub-assy 02803207P Drainage hole Cap 0681340101 00105249G Magnet Coil 4300040033 4-Way Valve Assy 03073116 Cut off Valve Assy 1/2 07133774 Cut off Valve Sub-Assy 07133058 Valve support assy 01715010P...
- Page 76 Service Manual (2) Model:GWH18RC-K3DNA8C/O Installation and Maintenance...
- Page 77 Service Manual Part Code Description GWH18RC-K3DNA8C/O Product Code CB313W00400 Front Grill 22415002 Front Panel 01535013P Drainage Connecter 06123401 Chassis Sub-assy 02803207P Drainage hole Cap 0681340101 00105249G Magnet Coil 4300040033 4-Way Valve Assy 03073116 Cut off Valve Assy 1/2 07133774 Cut off Valve Sub-Assy 07133058 Valve support assy 01715010P...
- Page 78 Service Manual (3) Model:GWH24RD-K3DNA3C/O Installation and Maintenance...
- Page 79 Service Manual Part Code Description GWH24RD-K3DNA3C/O Product Code CB302W01400 Temperature Sensor 3900030901 Front Grill 22413026 Cabinet 01435004P Left Handle 26235401 Front Side Plate 01305086P Drainage Connecter 06123401 Chassis Sub-assy 0280319601P Drainage hole Cap 0681340101 Compressor and Fittings 0010524501 Magnet Coil 4300040033 4-Way Valve Assy 03073124...
- Page 80 Service Manual (4) Model:GWH24RD-K3DNA8C/O Installation and Maintenance...
- Page 81 Service Manual Part Code Description GWH24RD-K3DNA8C/O Product Code CB313W00300 Front Grill 22415003 Cabinet 01435004P left handle 26235401 Front Side Plate 01305086P Drainage Connecter 06123401 Chassis Sub-assy 0280319601P Drainage hole Cap 0681340101 Gas-liquid Separator Assy 0010524501G Magnet Coil 4300040033 4-Way Valve Assy 03073124 Valve Support Sub-Assy 0171501201P...
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Page 82: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Take A3 panel for example 1. Before disassembly Before disassembly Remove the filter Open the front panel. screw Push the filter upward and then pull it outward to remove it. - Page 83 Service Manual Remove the horizontal louver Remove the axile bush on the horizontal louver. axile bush Pull the horizontal louver outward to remove it. horizontal louver 4. Remove the panel panel Loosen the screws fixing the indicator. Remove the indicator. display Along the groove fixing front panel, slide the rotor shaft outward to remove the...
- Page 84 Service Manual Remove the electric box cover Loosen the screw of the electric box cover. electric box cover Remove the electric box cover. Remove the front case Open the screw cap on the front case. Remove the screws fixing the front case. clasps Loosen the clasps of the front case.
- Page 85 Service Manual Remove the front case. front case 7. Remove the vertical louver Loosen the 10 clasps connecting the vertical louver and bottom case subassembly. clasps Remove the vertical louver. vertical louver 8. Remove the electric box subassembly temperature sensor Disconnect the indoor tube temperature sensor.
- Page 86 Service Manual ground wire screw Remove the screws at the joint of the ground wire and evaporator. Loosen the clasp at the joint of the electric box cover and the electric box. electric box Disconnect the wiring terminal of the wiring terminal motor and step motor on the electric of motor...
- Page 87 Service Manual 9. Remove press plate of connecting pipe Pipe Clamp Auxiliary piping Remove the screws of the press plate of connecting pipe. Remove press plate of connecting pipe. 10. Remove the evaporator Remove the screws at the joint of the evaporator and bottom case.
- Page 88 Service Manual Auxiliary piping Adjust the pipe slightly to separate the connecting pipe and the evaporator. Remove the evaporator. evaporator 11. Remove motor and cross flow fan step motor Remove the screw of the step motor and remove the step motor. Remove the screw of the motor press press plate plate.
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Page 89: Removal Procedure Of Outdoor Unit(18K)
Service Manual 11.2 Removal Procedure of Outdoor Unit(18K) Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Note:Only front grill have some differences. Steps Procedure 1. - Page 90 Service Manual Steps Procedure 2. Remove grille and cabinet screw Remove the 4 screws connecting the grille and outer case, and then remove the panel grille. grille Remove the screws connecting the outer case with motor support, isolation plate and chassis; screw lift the outer case upwards;...
- Page 91 Service Manual Steps Procedure remove the blade. 5.Remove electric box assy grounding wire Remove the grounding wire screw on the e l e c t r i c b o x a s s y a n d t h e n r e m o v e t h e retainer （２）...
- Page 92 Service Manual Steps Procedure screws Remove the 2 screws fixing the electric box assy and then lift the electric box assy upwards to remove it. electric box assy electric box clasp(right) cover clasp(left) Push the electric box cover in the direction of arrow to make the clasp at the right side separate from the groove;...
- Page 93 Service Manual Steps Procedure 6.remove the soundproof sponge. Tear off the sticking stripe and then remove the soundproof sponge. sticking stripe soundproof sponge 7.remove the isolation plate and reactor Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
- Page 94 Service Manual Steps Procedure 8.Valve Support Sub-Assy Valve Support Unsolder the welding joint connecting the valve Sub-Assy with capillary and condenser; unsolder the welding joint connecting the gas valve and air- liquid return pipe; remove the 2 bolts fixing the gas valve valve to remove the gas valve.
- Page 95 Service Manual Steps Procedure Remove the 6 screws fixing the motor and then remove the motor. motor screw 11.Remove condenser condenser chassis, and then lift the condenser upwards to remove it. screw screw 12.Remove compressor foot nuts then lift the compressor upwards to remove the compressor and damping cushion.
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Page 96: Removal Procedure Of Outdoor Unit(24K)
Service Manual 11.3 Removal Procedure of Outdoor Unit(24K) Note:Only front grill have some differences. Steps Procedure 1. Remove top cover and front side plate top panel Use the screwdriver to remove the screws connecting the top panel and panel and side panels. Remove the top panel.Loosen the screws fixing the valve cover and then remove the valve cover. - Page 97 Service Manual Steps Procedurs 3. Remove panel Twist off the screws connecting the panel, chassis and motor support with screwd- river, and then remove the panel. panel 4. Remove guard grille guard grille Twist off the screws fixing the guard grille and then remove the guard grille.
- Page 98 Service Manual Steps Procedure 6. Remove right side plate right side plate Twist off the screws connecting the right side plate and chassis, valve support and condenser, and then remove the right side plate. 7. Remove electric box electric box cover Twist off the screws on electric box cover with screwdriver, and then remove the electric box cover.
- Page 99 Service Manual Steps Procedure electric box 1 Twist off the screws between electric box 1 and left side plate with screw- driver, pull it upwards to remove the electric box 1. 8. Remove left side plate left side plate Twist off the screws connecting the left side plate and chassis with screwdriver, and then remove the left side plate.
- Page 100 Service Manual Steps Procedure 10. Remove motor and motor support Twist off the tapping screws fixing the motor, pull out the pin of leading wire for motor and then remove the motor. motor motor support Twist off the tapping screws fixing the motor support, pull it upwards and then remove the motor support.
- Page 101 Service Manual Steps Procedure 12. Remove gas valve and liquid valve Twist off the 2 bolts fixing the valve sub-assy. Unsolder the soldering joint between gas valve and air-return pipeand then remove the gas valve.(note: when unsoldering the soldering joint, wrap the gas valve with wet cloth completely to avoid the damage to valve, and release all refrigerant completely at...
- Page 102 Service Manual Steps Procedure 15. Remove support plate of condenser Twist off the screws connecting the support plate of condenser and condenser with screwdriver, and then remove the support plate of condenser. support plate of condenser 16. Remove chassis and condenser Pull it upwards to separate the chassis and condenser.
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Page 103: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius Celsius Celsius temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63... -
Page 104: Appendix 3: Pipe Expanding Method
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip Pipe B:Remove the burrs Shaper Downwards C:Put on suitable insulating pipe Union pipe... -
Page 105: Appendix 4: List Of Resistance For Ambient Temperature Sensor
Service Manual Appendix 4: List of Resistance for Ambient Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Temp( Temp( Temp( 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98 108.7 15.68... - Page 106 Service Manual Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(20K) Temp( Temp( Temp( Temp( 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233 129.9 19.14 4.14 1.198...
- Page 107 Service Manual Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(50K) Temp( Temp( Temp( Temp( 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6 73.83 14.62 3.96...
- Page 108 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add: West Jinji Rd, Qianshan, 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...
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