Table of Contents
Related Manuals for Gree GWH18PD-K3NNA1A
Summary of Contents for Gree GWH18PD-K3NNA1A
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Page 1: Service Manual
Change for Life Service Manual Models:GWH18PD-K3NNA1A(CA414000100) GWH18PD-K3NNA1A(CA414000101) GWH18PD-K3NNA1A(CA414000102) GWH24PD-K3NNA1A(CA414000201) GWH24PD-K3NNA1A(CA414000202) (Refrigerant R410A) GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI... -
Page 2: Table Of Contents
Table of Contents Table of Contents Summary and Features ..................1 1. Safety Precautions ....................2 2. Specifications ......................3 2.1 Unit Specifications ......................3 2.2 Capacity Variation Ratio According to Temperature ............7 2.3 Operation Data .........................7 3. Construction Views ....................8 3.1 Indoor Unit ........................8 3.2 Outdoor Unit ........................8 4. - Page 3 Table of Contents 8. Exploded Views and Parts List ..............31 8.1 Indoor Unit ........................31 8.2 Outdoor Unit ........................34 9. Troubleshooting ....................38 9.1 Precautions before Performing Inspection or Repair .............38 9.2 Confirmation ........................38 9.3 Judgement by Flashing LED of Indoor/Outdoor Unit ............38 9.4 How to Check Simply the Main Part ................40 10.
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Page 4: Summary And Features
Summary and Features Summary and Features Indoor Unit GWH18PD-K3NNA1A/I(CA414N00100) GWH18PD-K3NNA1A/I(CA414N00101) GWH24PD-K3NNA1A/I(CA414N00201) GWH24PD-K3NNA1A/I(CA414N00200) Outdoor Unit GWH18PD-K3NNA1A/O GWH24ND-K3NNB1A/O Remote Controller YAM1F... -
Page 5: Safety Precautions
Safety Precautions 1. Safety Precautions Installing, starting up, and servicing air conditioner can be Make sure the outdoor unit is installed on a stable, level hazardous due to system pressure, electrical components, surface with no accumulation of snow, leaves, or trash and equipment location, etc. -
Page 6: Specifications
Specifications 2. Specifications 2.1 Unit Specifications Model GWH18PD-K3NNA1A GWH18PD-K3NNA1A Product Code CA414000100 /CA414000101 CA414000102 Rated Voltage V ～ 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity 4700 4700 Heating Capacity 4900 4900 Cooling Power Input... - Page 7 Specifications Model of Outdoor Unit GWH18PD-K3NNA1A/O GWH18PD-K3NNA1A/O Shanghai Hitachi Electrical ZHUHAI LANDA Compressor Manufacturer/Trademark Appliances Co.,Ltd COMPRESSOR CO.,LTD. Compressor Model ASL180SV-C7LU QXA-C18B030 Compressor Oil HAF68D1 RB68EP Compressor Type Rotary Rotary L.R.A. Compressor RLA Compressor Power Input 1500 1520 Overload Protector...
- Page 8 Specifications Model GWH24PD-K3NNA1A GWH24PD-K3NNA1A Product Code CA414000201 CA414000202 Rated Voltage V ～ 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity 6155 6155 Heating Capacity 6500 6500 Cooling Power Input 1900 1900 Heating Power Input 1900 1900 Cooling Power Current...
- Page 9 Specifications Model of Outdoor Unit GWH24ND-K3NNB1A/O Compressor Manufacturer/Trademark Shanghai Hitachi Electrical Appliances Co.,Ltd/Highly Compressor Model ASH232SV-C8LU Compressor Oil HAF68D1 or equivalent Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input 1900 Overload Protector Internal Throttling Method Capillary Operation Temp ºC 18~30 Ambient Temp (Cooling) ºC...
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Page 10: Capacity Variation Ratio According To Temperature
Specifications 2.2 Capacity Variation Ratio According to Temperature Cooling Heating Condition Cooling Condition Heating Indoor:DB27 WB19 Indoor:DB20 Indoor air flow: Super High Indoor air flow: Super High Pipe length:4m or 5m Pipe length:4m or 5m Outdoor t emp.( Outdoor t emp.( 2.3 Operation Data Cooling Temperature condition... -
Page 11: Construction Views
Construction Views 3. Construction Views 3.1 Indoor Unit Unit: mm 3.2 Outdoor Unit Unit: mm... - Page 12 Construction Views Unit: mm...
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Page 13: Refrigerant System Diagram
Refrigerant System Diagram 4. Refrigerant System Diagram GAS SIDE 3-WAY VALVE 4-Way valve Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Accumlator Suction COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE i a r t r e n Capillary i a r t r e n COOLING HEATING... -
Page 14: Schematic Diagram
GREEN OVERLOAD YELLOW BROWN COMP COMPRESSOR BLUE PROTECTIVE EARTH YEGN YELLOW GREEN BLACK VIOLET ORANGE 5.2 Electrical Wiring ● Indoor Unit GWH18PD-K3NNA1A/I(CA414N00100) BN(BK) BU(WH) RECEIVER AND ROOM TEMP. TUBE TEMP. YEGN(GN) DISPLAY BOARD SENSOR SENSOR POWER EARTH-PLATE YEGN YEGN L101... - Page 15 Schematic Diagram GWH18PD-K3NNA1A/I(CA414N00101) RECEIVER AND BN(BK) POWER ROOM TEMP. TUBE TEMP. DISPLAY BOARD BU(WH) SENSOR SENSOR YEGN(GN) DISPLAY EARTH-PLATE YEGN YEGN TUBE L101 ROOM DISP1 DISP2 EVAPORATOR AP1 PRINTED CIRCUIT BOARD N(1) L(4) COMP(3) (SWING) JUMP SWING-UD PGF PG OFAN...
- Page 16 ROOM TEMP. TUBE TEMP. RECEIVER AND DISPLAY BOARD SENSOR SENSOR POWER EARTH-PLATE YEGN YEGN EVAPORATOR ROOM TUBE DISP1 L101 N(1) AP1 PRINTED CIRCUIT BOARD COMP (SWING) SWING-UD JUMP OFAN CONNECTING TERMINAL CABLE BLOCK STEPPING MOTOR FAN MOTOR ● Outdoor Unit GWH18PD-K3NNA1A/O...
- Page 17 Schematic Diagram GWH24ND-K3NNB1A/O YEGN These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
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Page 18: Printed Circuit Board
Schematic Diagram 5.3 Printed Circuit Board TOP VIEW Interface of live wire Interface of compressor Interface of neutral wire for health function Interface of neutral wire Interface of live wire for health function Control terminal of PG motor Interface of 4-way valve Feedback interface of PG motor Left&right swing... -
Page 19: Function And Control
Function and Control 6. Function and Control 6.1 Remote Controller Description Names and Functions of Wireless Remote Control Note: Be sure that there are no obstructions between receiver and remote controller ;Don't drop or throw the remote control; Don't let any liquid in the remote control and put the remote control directly under the sunlight or any place where is very hot. -
Page 20: Turbo Button
Function and Control Notice: This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model dosen't have, if press the corresponding button on the remote controller that the unit will keep the original running status. + button For presetting temperature increasing. - Page 21 Function and Control Notice: This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model dosen't have, if press the corresponding button on the remote controller that the unit will keep the original running status. TIMER ON TIMER ON BUTTON Timer On setting: Signal “ON”...
- Page 22 Function and Control Guide for Operation - Optional Operation 1. Press SLEEP button, to set sleep. 2. Press TIMER ON and TIMER OFF button, can set the scheduled timer on 3. Press LIGHT button, to control the on and off of the displaying part of the unit (This function may be not available for some units).
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Page 23: Description Of Each Control Operation
Function and Control 6.3 Description of Each Control Operation 1Temperature Parameters Indoor preset temperature (Tpreset) Indoor ambient temperature (Tamb.) 2 Basic functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is Tf=TcX1.8+32.) Once the compressor is energized, there should be a minimum interval of 3 minutes between two start-ups. - Page 24 Function and Control 2.2 Dry Mode 2.2.1 Dry Conditions and Process When Tamb. Tpreset+2 , the unit starts drying and cooling operation. In this case, the compressor and the outdoor fan operate; the indoor fan operates at low speed. When Tpreset - 2 ≤Tamb. ≤Tpreset+2 , the unit will start drying operation. In this case, th e indoor fan operates at low speed ; the compressor and the outdoor fan operate for 6 minutes and stop for 4 minutes in cycle.
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Page 25: Overcurrent Protection
Function and Control 2.3.3 Protection Function s Overheating Prevention Protection If the evaporator tube temperature overheats , the outdoor fan stops operation . When the tube temperature re turn s to normal, the outdoor fa n resumes operation. Noise Silencing Protection If the unit is turned off by pressing ON/OFF button or during mode switchover , the 4 - way valve stop s with a delay of 2 min utes. - Page 26 Function and Control There are 7 swing stat u s of horizontal louver: P osition s L, A, B, C and D, swing between L and D and stop at any position between L and D (angle s between L and D are equiangular). Upon turning off the unit, the horizontal louver will close at position 0 .
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Page 27: Installation Manual
Installation Manual 7. Installation Manual 7.1 Notices for Installation Caution 1.The unit should be installed only by authorized service center according to local or government regulations and in compliance with this manual. 2.Before installing, please contact with local authorized maintenance center. If the unit isnot installed by the authorized service center, the malfunction may not be solved due to incovenient contact between the user and the service personnel. - Page 28 Installation Manual 7.1.4 Safety Precautions for Electric Appliances 1.A dedicated power supply circuit should be used in accordance with local electrical safety regulations. 2.Don't drag the power cord with excessive force. 3.The unit should be reliably earthed and connected to an exclusive earth device by the professionals. 4.The air switch must have the functions of magnetic tripping and heat tripping to prevent short circuit and overload.
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Page 29: Installation Drawing
Installation Manual 7.2 Installation Drawing Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 300cm Above Above Air outlet side Space to the floor The dimensions of the space necessary for proper installation of the unit includ e the minimum permissible distances to adjacent parts . -
Page 30: Install Indoor Unit
2.Remove the wiring cover.Connect and fix power connection cord and signal control wire to the terminal board. As shown in Fig.2. 3.Make the power connection cord and signal control wire through the hole in the back of indoor unit. 4.Reinstall the cord anchorage and wiring cover. 5.Reinstall the front panel. Wring Cover GWH18PD-K3NNA1A/I GWH24PD-K3NNA1A/I N(1) 2 N(1) 2 yellow- orange... -
Page 31: Installation Of Outdoor Unit
Ensure that the joint nut is tightened firmly, otherwise, it may cause leakage. 7.4 Installation of Outdoor Unit Handle 7.4.1 Electric Wiring GWH18PD-K3NNA1A/O N(1) 2 1. Remove the handle of outdoor unit. blue black violet orange 2. Take off wire cord anchorage. Connect and fix power yellow- connection cord and signal control wire to the terminal board. -
Page 32: Check After Installation And Test Operation
Installation Manual 7.4.2 Air Purging and Leakage Test 1. Connect charging hose of manifold valve to charge end of low pressure valve (both high/low pressure valves must be tightly shut). Manifold Valve 2. Connect joint of charging hose to vacuum pump. Multimeter Manometer -76cmHg... -
Page 33: Installation And Maintenance Of Healthy Filter
Installation Manual 7.5.2 Operation Test 1.Before Operation Test (1)Do not switch on power before installation is finished completely. (2)Electric wiring must be connected correctly and securely. (3)Cut-off valves of the connection pipes should be opened. (4)All the impurities such as scraps and thrums must be cleared from the unit. 2.Operation Test Method (1)Switch on power and press "ON/OFF"... -
Page 34: Exploded Views And Parts List
Exploded Views and Parts List 8. Exploded Views and Parts List 8.1 Indoor Unit... - Page 35 Exploded Views and Parts List Part Code Description GWH18PD-K3NNA1A/I Product code CA414N00100 CA414N00101 Front Panel Assy 20022280 20022279 Display Board 30565208 30565200 Filter Sub-Assy 1112208901 1112208901 Screw Cover 24252016 24252016 Front Case Sub-assy 20012667 20012667 Rear Case assy 22202193 22202193...
- Page 36 Exploded Views and Parts List Part Code Description GWH24PD-K3NNA1A/I Product code CA414N00201 CA414N00200 Front Panel Assy 20022279 20022280 Display Board 30565200 30565208 Filter Sub-Assy 1112208901 1112208901 Screw Cover 24252016 24252016 Front Case Sub-assy 2001266702 2001266702 Rear Case assy 22202193 22202193 Guide Louver 10512205 10512205...
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Page 37: Outdoor Unit
Exploded Views and Parts List 8.2 Outdoor Unit GWH18PD-K3NNA1A/O... - Page 38 Exploded Views and Parts List Part Code Description GWH18PD-K3NNA1A/O GWH18PD-K3NNA1A/O Product code CA414W00100 CA414W00102 Front Grill 22413433 22413433 Front Panel 0153303204P 0153303204P Chassis Sub-assy 012032134 0120324510 Drainage Connecter 06123401 06123401 Magnet Coil 43000400 43000400 Compressor and Fittings 00120023 00103891 4-Way Valve...
- Page 39 Exploded Views and Parts List GWH24ND-K3NNB1A/O...
- Page 40 Exploded Views and Parts List Part Code Description GWH24ND-K3NNB1A/O Product code CA136W0042 Front grill 22415001 Left Handle 26235401 Front Panel 01305015 Axial Flow Fan 10335257 Fan Motor 15015057 Motor Support Sub-Assy 0170305901 Top Cover 01255001 Clapboard Sub-Assy 01233035 Electric Box Assy 02603219 Condenser Assy 01113396...
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Page 41: Troubleshooting
Confirm that the power breaker operates(ON) normally; (2)Confirmation of Power Voltage Confirm that power voltage is AC 220-230-240 ±10%. If power voltage is not in this range, the unit may not operate normally. 9.3 Judgement by Flashing LED of Indoor/Outdoor Unit Note:GWH18PD-K3NNA1A(CA414000100) GWH24PD-K3NNA1A(CA414000202) 无双八显示。... - Page 42 Troubleshooting Display Method of Indoor Unit Indicator lamp (During Malfunction blinking, ON for 0.5S and A/C Status Possible Causes Error Name OFF for 0.5 S) Code Operation COOL HEAT Lamp Lamp Lamp The unit will stop operation 1. The wiring terminal between indoor as it reaches the temperature ambient temperature sensor and controller is Indoor...
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Page 43: How To Check Simply The Main Part
Troubleshooting 9.4 How to Check Simply the Main Part (1) Malfunction of temperature sensor Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly M alfunction is eliminated. Is there short circuit due to trip over of the par ts? Make the parts upright Malfunction is... - Page 44 Troubleshooting (2) PG motor (indoor fan) does not operate (H6) “H6”is displayed on the unit. Stir the fan blade with a hand when the unit is DE - ENERGIZED . Reinstall the motor Does the and the blade to blade rotate make it rotate unsmoothly? smoothly.
- Page 45 Troubleshooting (3) Jumper cap malfunction (C5) C5 is displayed on the unit . Install a matching Is there jumper cap on the jumper cap . controller? Is the malfunction eliminated? Re-insert the jumper Is the jumper cap inserted incorrectly or improperly? Is the malfunction eliminated?
- Page 46 Troubleshooting (4)E5 Malfunction Start Normal fluctuation is within 10% of the rated voltage on the Is the supply voltage unstable with big fluctuation? Malfunction is eliminated. nameplate Is the supply voltage too low with overload? Adjust the supply voltage to maintain it within normal range Malfunction is eliminated.
- Page 47 Troubleshooting Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) 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 48 Troubleshooting Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors(20K) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) 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...
- Page 49 Troubleshooting Appendix3: Resistance Table for Outdoor Discharge Temperature Sensor (50K) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) Temp(℃ ) Resistance(kΩ) 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...
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Page 50: Removal Procedure
Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. 1. Before disassembly Before disassembly Remove the filter Open the front panel. panel Push the filter upward and then pull it outward to remove it. - Page 51 Removal Procedure Remove the guide louver Remove the axile bush on the guide louver. axile bush Pull the guide louver outward to remove it. guide louver 4. Remove the panel panel Along the groove fixing front panel, slide the rotor shaft outward to re- move the front panel.
- Page 52 Removal Procedure 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 53 Removal Procedure 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 54 Removal Procedure 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. Remove the electric box cover. electric box Disconnect the wiring terminal of the wiring terminal motor and step motor on the electric of motor...
- Page 55 Removal Procedure 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 56 Removal Procedure 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. press plate Remove the screw of the motor press plate.
- Page 57 Removal Procedure Remove the cross flow blade and motor. Remove the rubber cushion of the bearing. O-Gasket sub-assy of Bearing Ring of Bearing Remove the screws at the joint of the Cross Flow Fan cross flow blade and the motor. Take Fan Motor down the motor.
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Page 58: Removal Procedure Of Outdoor Unit
10.2 Removal Procedure of Outdoor Unit Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. GWH18PD-K3NNA1A/O Steps 1. Before disassembly 2. Remove big handle Remove the connection screw fixing the big big handle handle and then remove the handle. - Page 59 Removal Procedure Steps 4. Remove front grille Remove connection screws between the front grille and the front panel. Then remove the front grille. front grill 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
- Page 60 Removal Procedure Steps 7. Remove axial flow blade axial flow blade Remove the nut on the blade and then remove the axial flow blade. 8. Remove motor and motor support Remove the 4 tapping screws fixing the motor and motor support disconnect the leading wire insert of the motor.
- Page 61 Removal Procedure Steps 10. Remove isolation sheet isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the isolation sheet. 11. Remove soundproof sponge Remove the soundproof sponge wrapping the compressor. soundproof sponge 12. Remove magnet coil Remove the screw fixing the magnet coil and then remove the coil.
- Page 62 Removal Procedure Steps 13. Remove liquid valve and gas valve Unsolder the welding joint connecting the capillary, valves and the outlet pipe of condenser to remove the capillary. Do not block the capillary with welding slag during unsoldering. Remove the 2 screws fixing the gas valve and unsolder the welding joint between the gas valve liquid valve and the air-return pipe to remove the gas valve.
- Page 63 Removal Procedure Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. GWH24ND-K3NNB1A/O Steps Procedure 1. Before disassembly 2. Remove handle handle Remove the screw fixing the handle and then remove the handle. screw 3.
- Page 64 Removal Procedure Procedure Steps 4. Remove front panel and rear guard grille rear guard grille screw panel Remove screws fixing the front panel and the rear guard grille respectively, and then remove the front panel and the rear guard screw grille.
- Page 65 Removal Procedure Steps Procedure 7. Remove motor and motor support motor support motor Remove screws on the motor and the motor support, and then remove the motor and the motor support. screw 8. Remove electric box electric box assy Remove the 2 screws fixing the electric box;...
- Page 66 Removal Procedure Procedure Steps 10. Remove solenoid coil Remove the screw on the solenoid coil, and then remove the solenoid coil. solenoid coil screw 11. Remove compressor 4-way valve assy compressor Unsolder the pipes (including the soldering joint among 4-way valve, compressor, the condenser, the gas valve and the liquid valve) connected to the...
- Page 67 Removal Procedure Steps Procedure 12. Remove isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the isolation sheet. isolation sheet screw 13. Remove valve support and condenser Remove screws fixing the valve support condenser and then remove the valve support; Remove the screw fixing the condenser and then pull the condenser upwards to remove it.
- Page 68 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree @gree. com. cn www .gree. com For continuous improvement in the products, Gree reserves the right to modidy the product specification and appearance in this manual without notice and without incurring any obligations.