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Gree GWH07PA-K3NNA1A Service Manual
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Gree GWH07PA-K3NNA1A Service Manual

Gree GWH07PA-K3NNA1A Service Manual

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С
GREE
Change fo r Life
If*» Service Manual
MODEL: GWH07PA-K3NNA1A
GWH09PA-K3NNA1A
GWH12PB-K3NNA1A
(Refrigerant R410A)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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Summary of Contents for Gree GWH07PA-K3NNA1A

  • Page 1 С GREE Change fo r Life If*» Service Manual MODEL: GWH07PA-K3NNA1A GWH09PA-K3NNA1A GWH12PB-K3NNA1A (Refrigerant R410A) GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 2 Table of Contents Table of Contents Summary and Features..............1. Safety Precautions..............2. Specifications................2.1 UnitSpecifications........................3 2.2 Capacity Variation Ratio According to Temperature............. 9 2.3 Operation Data......................... 9 3. Construction Views..............3.1 Indoor Unit..........................10 3.2 Outdoor U nit..........................10 4. Refrigerant System Diagram..........5.
  • Page 3 Table o f Contents 8. Exploded Views and Parts List..........8.1 Indoor Unit..........................33 8.2 Outdoor U nit........................... 38 9. Troubleshooting..............44 9.1 Precautions before Performing Inspection or R epair............44 9.2 Judgement by Flashing LED of Indoor/Outdoor Unit............44 9.3 How to Check Simply the Main Part..................45 10.
  • Page 4 Summary and Features Summary and Features Indoor Unit GWH07PA-K3NNA1A/I(CA414N00500) GWH07PA-K3NNA1A/I(CA414N00501) GWH09PA-K3NNA1A/I(CA414N00600) GWH09PA-K3NNA1A/I(CA414N00601) GWH12PB-K3NNA1A/I(CA414N00700) GWH12PB-K3NNA1A/I(CA414N00701) Outdoor Unit GWH07NA-K3NNB1A/0 Remote Controller YAM1F...
  • Page 5 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 2. Specifications 2.1 Unit Specifications Model GWH07PA-K3NNA1A Product Code CA414000500/CA414000501 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 2200 Heating Capacity 2380 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current 5.75...
  • Page 7 Specifications Model of Outdoor Unit GWH07NA-K3NNB1A/0 Compressor Manufacturer/Trademark Xi'an Qing'an refrigeration Equipment Co.,Ltd Compressor Model YZG-A082Y2 Compressor Oil RB68EP Compressor Type Rotary L.R.A. Compressor RLA 3.35 Compressor Power Input Overload Protector B135-140-241E Throttling Method Capillary Operation Temp 16~30 Ambient Temp (Cooling) 18~43 Ambient Temp (Heating) -7~24...
  • Page 8 Specifications Model GWH09PA-K3NNA1A Product Code CA414000600/CA414000601 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 2638 Heating Capacity 2814 Cooling Power Input Heating Power Input Cooling Power Current 3.64 Heating Power Current 3.46 Rated Input 1120 Rated Current 4.97...
  • Page 9 Specifications Model of Outdoor Unit GWH09NA-K3NNB1C/0 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD. Compressor Model QXA-B102C150 Compressor Oil RB68EP Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input Overload Protector lnternal(UP3-21) Throttling Method Capillary Operation Temp 16~30 Ambient Temp (Cooling) 18~43 Ambient Temp (Heating) -7~24 Condenser Form...
  • Page 10 Specifications Model GWH12PB-K3NNA1A Product Code CA414000700/CA414000701 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 3223 Heating Capacity 3516 Cooling Power Input 1004 Heating Power Input Cooling Power Current 4.45 Heating Power Current 4.32 T Rated Input 1450 Rated Current...
  • Page 11 Specifications Model of Outdoor Unit GWH12NB-K3NNB1C/0 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD. Compressor Model QXA-B120C150 Compressor Oil RB68EP Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input 1020 Overload Protector Internal Throttling Method Capillary Operation Temp 16~30 Ambient Temp (Cooling) 18~43 Ambient Temp (Heating) -7~24...
  • Page 12 Specifications 2.2 CapacityVariation Ratio According to Temperature Cooling Heating 1 1 0 v° 100 1 0 0 ' C J Condition Condition In d o o r:D B 2 7 C W B 1 9 'C Œ Œ — In d o o r:D B 20 C Indoor a ir flow: S u p e r High Indoor air flow: P ipe length:4m or 5m...
  • Page 13 Construction Views 3. Construction Views 3.1 Indoor Unit 07K/09K Unit: mm MODEL 07/09K 264.5 3.2 Outdoor Unit Unit: mm...
  • Page 14 Construction Views 09K/12K Unit: mm...
  • Page 15 Refrigerant System Diagram 4. Refrigerant System Diagram • Cooling & Heating Models INDOOR UNIT OUTDOOR UNIT Refrigerant pipe diameter Liquid :1/4" (6 mm) Gas : 3/8" (9.52 mm)
  • Page 16 Schematic Diagram 5. Schematic Diagram 5.1 Electrical Wiring • Electrical Data Symbol Color symbol Symbol Color symbol ORANGE BROWN VIOLET BLUE WHITE BLACK YELLOW Symbol Parts name COMP COMPRESSOR PROTECTIVE © YEGN YELLOW GREEN EARTH • Indoor Unit Models:GWH07PA-K3NNA1A/l(CA414N00501) GWH09PA-K3NNA1A/I(CA414N00601) GWH12PB-K3NNA1A/I(CA414N00701)
  • Page 17 Schematic Diagram Models:GWH07PA-K3NNA1A/l(CA414N00500) GWH09PA-K3NNA1A/I(CA414N00600) GWH12PB-K3NNA1A/I(CA414N00700) B U (W H ) B N (B K ) ROOM TEMP. TUBE TEMP. RECEIVER AND Y E G N (G N ) DISPLAY BOARD SENSOR DISPLAY POWER © P E R T1 EARTH-PLATE YEGN YEGN ©...
  • Page 18 Schematic Diagram Models: GWH09NA-K3NNB1C/0 GWH12NB-K3NNB1C/0 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
  • Page 19 Schematic Diagram 5.2 Printed Circuit Board • Top View Relay of compressor controller Protective tube Interface of controller of indoor Interface of null wire of power supply Interface of controller of 4-way valveand control relay K114 Interface of controller of outdoor fan and control relay K115 Auto button...
  • Page 20 Function and Control 6. Function and Control 6.1 Remote Control Operations 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 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. + button •...
  • Page 22 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 •...
  • Page 23 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).
  • Page 24 Function and Control 6.2 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 25 Function and Control 2.2 Dry Mode 2.2.1 Dry Conditions and Process When Tamb. >Tpreset+2"C, 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”C<Tamb. <Tpreset+2’C, the unit will start drying operation. In this case, the indoor fan operates at low speed; the compressor and the outdoor fan operate for 6 minutes and stop for 4 minutes in cycle.
  • Page 26 Function and Control 2.3.2 Defrosting Conditions and Process With intelligent defrosting function, the unit defrosts automatically according to the actual condition. The indoor unit displays “H r . 2.3.3 Protection Functions ♦Overheating Prevention Protection If the evaporator tube temperature overheats, the outdoor fan stops operation. When the tube temperature returns to normal, the outdoor fan resumes operation.
  • Page 27 Function and Control 3.3 Buzzer Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep. 3.4 Sleep Function In SLEEP mode, the unit will automatically select appropriate sleep curve to operate according to different temperature setting. 3.5 Turbo Function This function can be set in cooling or heating mode to quickly cool or heat the room.
  • Page 28 Function and Control when switching to room temperature display from set temperature or outdoor temperature by the remote controller, room temperature will be displayed for 5 seconds firstly and then set temperature display returns. 3.10 Locked protection to PG motor If the indoor fan motor keeps low rotation speed for a continuous period of time after startup, the unit will stop operation and display “H6”.
  • Page 29 Installation Manual 7. Installation Manual 7.1 Notices for Installation 1.The unit installation work must be done by qualified personnel according to the local rules and this manual. 2.Before installating, please contact with local authorized maintenance center, if unit is not installed by the authorized maintenance center, the malfunction may not solved, due to discommodious contacts.
  • Page 30 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.
  • Page 31 Installation Manual 7.2 Installation Dimension Diagram Space to the wall Space to the floor The dimensions of the space necessary for proper installation of the unit include the minimum permissible distances to adjacent parts. Space to the wall Air outlet side...
  • Page 32 Installation Manual 7.3 Install Indoor Unit 7.3.1 Installation of Mounting Plate 1.Mounting plate should be installed horizontally. As the water tray's outlet for the indoor unit is two-way type, during installation, the indoor unit should slightly slant to water tray's outlet for smooth drainage of condensate. 2.Fix the mounting plate on the wall with screws.(Where is pre-covered with plastic granula) 3.Be sure that the mounting plate has been fixed firmly enough to withstand about 60 kg.Meanwhile, the weight should...
  • Page 33 Installation Manual NOTE: All wires between indoor and outdoor units must be connected by the qualified electric contractor. • Electric wires must be connected correctly. Improper connection may cause malfunction. •Tighten the terminal screws securely. • After tightening the screws, pull the wire slightly to confirm whether it is firm or not. •...
  • Page 34 Installation Manual 7.4.2 Air Purging and Leakage Test 1. Connect charging hose of manifold valve to charge end of low pressure valve (bothhigh/low pressure valves must be tightly shut). 2. Connect joint of charging hose to vacuum pump. 3. Fully open the handle of Lo manifold valve. 4.
  • Page 35 Installation Manual 7.5.2 Test Operation I.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-offvalves ofthe connection pipes should be opened. (4)AII the impurities such as scraps and thrums must be cleared from the unit. 2.0peration Test Method (1)Switch on power and press ON/OFF button on the remote controller to start operation.
  • Page 36 Exploded Views and Parts List 8. Exploded Views and Parts List 8.1 Indoor Unit Models:GWH07PA-K3NNA1A/l GWH09PA-K3NNA1A/I > < .. . 29...
  • Page 37 Exploded Views and Parts List Part Code Description GWH07PA-K3NNA1A/I GWH07PA-K3NNA1A/I Product Code CA414N00500 CA414N00501 Air Louver 1 10512113 10512113 Air Louver 2 10512114 10512114 Helicoid Tongue 26112202 26112202 LeftAxile Bush 10512037 10512037 Rear Case assy 22202254 22202254 Cross Flow Fan...
  • Page 38 Exploded Views and Parts List Part Code Description GWH09PA-K3NNA1A/I GWH09PA-K3NNA1A/I Product Code CA414N00600 CA414N00601 Air Louver 1 10512113 10512113 Air Louver 2 10512114 10512114 Helicoid Tongue 26112202 26112202 LeftAxile Bush 10512037 10512037 Rear Case assy 22202254 22202254 Cross Flow Fan 10352034 10352034 O-Gasket of Cross Fan Bearing...
  • Page 39 Exploded Views and Parts List Model:GWH12PB-K3NNA1A/l...
  • Page 40 Exploded Views and Parts List Part Code Description GWH12PB-K3NNA1A/I GWH12PB-K3NNA1A/I Product Code CA414N00700 CA414N00701 Front Panel 2002227301 20022228 Filter Sub-Assy 11122206 11122206 Screw Cover 24252016 24252016 Front Case Assy 20022232 20022232 Air Louver 1 1051211302 1051211302 Air Louver 2 1051211402 1051211402 Helicoid Tongue 2611216202...
  • Page 41 Exploded Views and Parts List 8.2 Outdoor Unit Model:GWH07NA-K3NNB1A/0...
  • Page 42 Exploded Views and Parts List Part Code Description GWH07NA-K3NNB1A/0 Product code CA136W0110 Front Grill 22263002 Front Panel 01533255P Fan Motor 1501315604 Chassis Sub-assy 01203783P Drainage Connecter 06123401 Compressor and fittings 00101076 Magnet Coil 43000400 4-way Valve Assy 03123281 Capillary Sub-Assy 03063015 Right Side Plate Sub-Assy 01303243...
  • Page 43 Exploded Views and Parts List Model:GWH09NA-K3NNB1C/0...
  • Page 44 Exploded Views and Parts List Part Code Description GWH09NA-K3NNB1C/0 Product Code CA136W06900 Front grill 22413433 Front Panel 01533029P Chassis Sub-assy 01203748P Drainage Connecter 06123401 Compressor and Fittings 00103804 Compressor Gasket 76710247 Magnet Coil 430004002 4-Way Valve Assy 03123646 4-way Valve 430004022 StrainerA 07210022...
  • Page 45 Exploded Views and Parts List Model:GWH12NB-K3NNB1C/0...
  • Page 46 Exploded Views and Parts List Part Code Description GWH12NB-K3NNB1C/0 Product Code CA136W07000 Front grill 22413433 Front Panel 01533033P Chassis Sub-assy 01203767P Drainage Connecter 06123401 Compressor and fittings 00103281 Magnet Coil 430004002 4-way Valve Assy 03123642 4-way Valve 430004032 StrainerA 07210022 Capillary Sub-Assy 03103997 Valve...
  • Page 47 Troubleshooting 9. Troubleshooting 9.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, make sure that the unit is de-energized and the plug is disconnected.
  • Page 48 Troubleshooting 9.3 How to Check Simply the Main Part 9.3.1 F1/F2 Malfunction...
  • Page 49 Troubleshooting 9.3.2 H6 Malfunction Possible causes: 1. Fan motor is locked; 2. The.feedback.terminal of PG motor is not connected tightly; 3. The control terminal of PG motor is not connected tightly; 4. Motor is damaged; 5. Malfunction of the rotation speed detection circuit of the mainboard. See the flow chart below:...
  • Page 50 Troubleshooting 9.3.3 C5 Malfunction Possible causes: 1. There is no jumper cap on the controller; 2. Jumper cap is not inserted properly and tightly; 3. Jumper cap is damaged; 4. Controller is damaged. See the flow chart below: C5 is displayed on the unit.
  • Page 51 Troubleshooting 9.3.4 U8 Malfunction Possible.causes: 1.Th e controller diagnoses incorrectly due to instant energization after de-energ ized while the capacitor discharges slowly; 2.Malfunction of the zero-cross detection circuit of the mainboard. flow S ee the chart below: “U 8” is displayed on the unit.
  • Page 52 Troubleshooting Appendix 1: Resistance Table for Indoor and Outdoor Ambient Temperature Sensors (15K) Temp< °c) Temp.( ”C) Resistance( kQ ) Resistance( kQ ) Resistance ( kQ ) Temp. °C) Resistance( kQ ) Temp. °C) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6...
  • Page 53 Troubleshooting Appendix 2: Resistance Table for Indoor and Outdoor Tube Temperature Sensor (20K) Resistance ( kQ) Resistance (kQ) Temp.( ”C) Resistance ( kQ) Temp. ( ”C) Resistance ( kQ) Temp. ( ”C) Temp. ( ”C) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386...
  • Page 54 Troubleshooting A ppendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K) Resistance(kQ) Temp. ( ”C) Temp. ( ”C) Resistance ( kQ ) Resistance ( kQ ) Temp. ( ”C) Temp. ( ”C) Resistance ( kQ ) 853.5 18.34 4.754 799.8 93.42 17.65...
  • Page 55 Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit A Warning Be sure to wait for a minimum of10 minutes after turning off all power supplies before disassembly.
  • Page 56 Removal Procedure Steps Procedure 3.Removal of indicator and front panel Remove connection screw of indicator and then remove the indicator. Remove rotating shaft of front panel and then remove the front panel. 4.Removal of electric box cover 2 Remove connection screws between electric box cover 2 and front case.
  • Page 57 Removal Procedure Steps Procedure 5. Removal of front case Remove connection screws between front case and rear case. Release clasp connecting front case and rear case and then remove the front case. 6. Removal of vertical louver Remove 10 clasps of vertical louver and rear case assy.
  • Page 58 Removal Procedure Steps Procedure 7. Removal of electric box assy Indoor temp sensor Unplug indoor temp sensor. Remove connection screws of electric box assy and rear case. Release clasps and remove connection screws of earthing wire and evaporator assy. Then remove electric box assy.
  • Page 59 Removal Procedure Steps Procedure 9.Removal of cross flow fan and motor ^Sit Remove screw s of step m otor and then remove the motor. Remove 4 connection screws of motor clamp and rear case. Then remove motor clamp. Press P l„ Remove cross flow fan and motor.
  • Page 60 Removal Procedure 10.2 Removal Procedure ofOutdoor Unit A Warning Be sure to wait for a minimum of10 minutes after turning off all power supplies before disassembly. Step Procedure 1. Remove big handle Before disassembly. Remove the screw fixing the big handle. Remove the big handle.
  • Page 61 Removal Procedure Step Procedure 3.Remove front grille and front panel Remove the 2 screws connecting the front grille with front panel. Remove front grille. front grille Remove the 5 screws connecting the front panel with the chassis and the motor support. Remove the front panel.
  • Page 62 Removal Procedure Step Procedure 5. Remove axial flow blade and motor Remove the nut on the blade. Remove the axial flow blade. motor support Remove the tapping screws fixing the motor; disconnect the leading wire insert of the motor. Remove the motor. Remove the tapping screws fixing the motor support.
  • Page 63 Removal Procedure Step Procedure 7. Remove isolation sheet Remove the 3 screws fixing the isolation sheet. Remove the isolation sheet. isolation sheet 8. Remove soundproof sponge Remove the soundproof sponge wrapping the compressor. soundproof sponge 9. Remove magnet moil Remove the screw fixing the magnet moil. Remove the coil.
  • Page 64 Removal Procedure Step Procedure 10. Remove compressor Remove the 2 screws fixing the gas valve. Unsolder the welding joint connecting the gas valve and the air-return pipe. Remove the gas valve. (NOTE: when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve liquid valve caused by high temperature.) Remove the 2 screws fixing the liquid valve.
  • Page 65 Removal Procedure A Warning Be sure to wait for a minimum of10 minutes after turning off all power supplies before disassembly. 09/12K...
  • Page 66 Removal Procedure Procedure Steps 4. Remove front grille Remove connection screws between the front grille and the front panel. Then remove the front grille. 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 67 Removal Procedure Procedure Steps 8. Remove motor and motor support motor support Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the 2 tapping screws fixing the motor support and lift the motor support to remove it.
  • Page 68 Removal Procedure Procedure Steps 12. Remove magnet coil Remove the screw fixing the magnet coil and then remove the coil. 13. Remove valves and 4-way valve subassembly Unsolder welding joint connecting the capillary, the valve and the outlet pipe of condenser to remove the capillary.
  • Page 69 Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070 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.

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