Gree GWC09NA-D3NNA3A/I Service Manual
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Gree GWC09NA-D3NNA3A/I Service Manual

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Change for Life
Service Manual
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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Summary of Contents for Gree GWC09NA-D3NNA3A/I

  • Page 1 Change for Life Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 4 T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER...
  • Page 5 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. beside.
  • Page 10 Condition Indoor:DB27ºC WB19ºC Condition Indoor air flow: Super High Indoor:DB20ºC Indoor air flow: Pipe length: 5m Super High Pipe length: 5m 32 33 34 35 36 37 38 39 40 41 42 43 44 45 -15 -13 -11 -9 -7 -5 -3 -1 9 11 Outdoor temp.(ºC) Outdoor temp.(ºC)
  • Page 13 GAS SIDE 3-WAY VALVE Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Suction Accumulator COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE Capillary i a r t r e n COOLING GAS SIDE 3-WAY VALVE 4-Way valve Muffler Di s charge HEAT EXCHANGE (EVAPORATOR)
  • Page 14 Symbol Color symbol Symbol Colors ymbol ORANGE BROWN VIOLET BLUE WHITE BLACK YELLOW Symbol Parts name COMP COMPRESSOR PROTECTIVE YEGN YELLOW GREEN EARTH...
  • Page 18 TOP VIEW Part Name Neutral wire of Health function PG motor Neutral wire Live wire of Health function 4-way valve control terminal Outdoor fan Auto button Up&down swing control terminal Interface feedback from indoor fan Display control terminal 1 Display control terminal 2 Interface of pipe temperature sensor Interface of ambient...
  • Page 19 TOP VIEW Part Name Compressor control relay Protective tube Indoor fan controls terminal Terminal of power neutral wire interface 4-way valve control terminal and relay K115 Outdoor fan control terminal and relay K114 Auto button Up&down swing control terminal Interface feedback from indoor fan Display control terminal Interface of pipe temperature sensor Interface of ambient temperature...
  • Page 20 ON/OFF Press it to start or stop operation. MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT). Press it to decrease temperature setting. Press it to increase temperature setting. Press it to set fan speed. SWING Press it to set swing angle. SLEEP TIMER Press it to set auto-on/auto-off timer.
  • Page 21 TIMER: Press this button to initiate auto-on/auto-off timer. To cancel auto-timer program, press this button twice. Combination of "+" and "-" buttons: About lock Press "+" and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked, is displayed.
  • Page 22 1 Temperature 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 unit is energized, the compressor shall never be restarted except 3mins interval at least. For the first energization, if the unit is at off status before power failure, the compressor can be restarted without 3-min delay.
  • Page 23 (2)Dry Mode Dry Conditions and Process When Tamb. Tpreset+2 , the unit will run in dry and cooling mode, in that case the compressor and outdoor fan will run and the indoor fan will run at low speed. When Tpreset-2 Tamb.
  • Page 24 Defrosting Conditions and Process The unit with intelligent defrosting function can defrost according to frosting conditions. Dual8 displays H1. Protection Function High Temp Resistance Protection If it is detected that the evaporator tube temperature is superheating, the outdoor fan will stop working. When the tube temperature resumes to normal condition, the outdoor fan will resume running.
  • Page 25 (6)Dry Function This function can be set in cooling or dry mode. (7)Automatic Control of Fan Speed In this mode, the indoor fan will automatically select high, medium or low speed with the change of ambient temperature. (8)Up & Down Swing After energization, up &...
  • Page 28 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 29 Wall Wall Mark on the middle of it Gradienter Space Space to the to the wall wall above above Right Left Ф55 Ф55 (Rear piping hole) (Rear piping hole) Outdoor Indoor Wall pipe Seal pad Φ55 outlet pipe of indoor unit outlet pipe of drain hose indoor unit...
  • Page 30 Wring Cover Cool only type Heat pump type yellow- violet green yellow-green Outdoor unit connection Outdoor unit connection External connection side piping electric wire Liquid side piping Tailing 2 Gas side piping Tailing 1 Liquid side insulation Piping insulation Fig.7 Finally wrap it Water drainage pipe with tape...
  • Page 31 Handle Cool only type N(1) black blue yellow-green (brown) Indoor unit connection Heat pump type N(1) 2 blue black violet orange yellow- green Indoor unit connection Manifold Valve Multimeter Manometer -76cmHg Hi handle Lo Handle Charging hose Low pressure valve Vacuum pump Drain-water hole Bottom frame...
  • Page 32 Fig. a Fig. b Air filter Healthy filter Fig. c...
  • Page 49 Be cautious during installation and maintenance. Do operation following the regulations to avoid electricshock and casualty oreven 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. * dynamic maintenance is the maintenance during energization of the unit.Before dynamic maintenance, check the electric- ity and ensure that there is ground wire on the site.
  • Page 50 9.3.1 F1/F2 Malfunction Start Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted? Insert the temperature sensor tightly Malfunction is eliminated. Is there short circuit due to tri-pover of the par ts? Make the parts upright Malfunction is eliminated.
  • Page 51 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 chart below: “H6”is...
  • Page 52 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 chart below: C5 is displayed on the unit. Install a matching Is there jumper cap on the jumper cap .
  • Page 53 Appendix 1: Resistance Table for Indoor and Outdoor Ambient Temperature Sensors (15K) Temp. Temp. kΩ kΩ Temp. kΩ Temp. kΩ Resistance Resistance Resistance Resistance 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 3.333 0.952...
  • Page 54 Appendix 2: Resistance Table for Indoor and Outdoor Tube Temperature Sensor (20K) kΩ kΩ kΩ kΩ Temp. Temp. Temp. Resistance Temp. Resistance Resistance Resistance 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 55 Appendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K) kΩ kΩ kΩ Temp. kΩ Temp. Temp. Resistance Temp. Resistance Resistance Resistance 853.5 18.34 4.754 799.8 93.42 17.65 4.609 89.07 16.99 4.469 703.8 84.95 16.36 4.334 660.8 81.05 15.75 4.204 620.8 77.35 15.17...
  • Page 56 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. 1. Remove filter Open the front panel. panel Loosen the clasp of the filter. clasp Push the filter inward and then draw it upward to remove it.
  • Page 57 Bend the louver outwards and then remove the louver. guide louver 3. Remove panel Push the rotor shaft on both sides of the panel rotor shaft to make it separate from the groove. Remove the panel. panel 4. Remove electric box cover Loosen the screws of the electric box cover with screwdriver.
  • Page 58 electric box cover Remove the electric box cover, seperate it from the front case. 5. Remove front case Open the screw cap on the front case. Remove the screws fixing the front case. screw clasp Loosen the six clasps of the front case. left middle right...
  • Page 59 6. Remove vertical louver Loosen the clasp connecting the vertical louver and rear case assy. clasp Remove the vertical louver to the separate louver with bottom assembly. vertical louver 7. Remove electric box heat exchanger thermistor Disconnect the indoor tube temperature sensor. screw earthing wire Remove the screws at the joint of the earthing...
  • Page 60 wiring terminal of motor Pull out the wiring terminal of motor and stepping motor. wiring terminal of stepping motor Remove the 2 screws of the display. screw Remove the screw of electric box, remove the electric box to separate it with bottom assembly. electric box pipe clamp 8.
  • Page 61 9. Remove evaporator Remove the 3 screws at the joint of the evaporator and rear case. screw auxiliary piping Adjust slightly the pipe on the evaporator to separate the pipe with the evaporator. heat Remove the evaporator to separate the evaporator exchanger with rear case assy.
  • Page 62 motor clamp Remove the screw of the motor clamp and then remove the clamp. cross flow blade motor Remove the cross flow blade and motor. O-gasket sub-assy of bearing ring of bearing Remove the rubber cushion of the bearing. Remove the screws at the joint of the cross flow blade and the motor.
  • Page 63 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. 1. Remove big handle Before disassembly. Remove the screw fixing the big handle. Remove the big handle. handle 2. Remove top panel top panel Remove the 3 screws connecting the top panel with the front panel and the right side...
  • Page 64 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. front panel 4.
  • Page 65 5. Remove axial flow blade and motor Remove the nut on the blade. Remove the axial axial flow blade 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 motor fixing the motor support.
  • Page 66 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 magnet coil 9. Remove magnet coil. Remove the screw fixing the Remove the coil.
  • Page 67 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 liquid valve a wet cloth completely to avoid damage to the valve caused by high temperature.) Remove the 2 screws fixing the liquid valve.
  • Page 68 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. 1. Before disassembly 2. Remove big handle Remove the connection screw fixing the big handle big handle and then remove the handle. 3.
  • Page 69 4. Remove front grille Remove connection screws between the front grille and the front panel. Then remove the front grille . 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 70 8. Remove motor and motor suppor t motor suppor t 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 . moto r 9.
  • Page 71 12. Remove magnet coil magnet coil Remove the screw fixing the magnet coil and then remove the coil. 13. Remove valves and 4-way valve subassembl y 4- wa y valv e Unsolder welding joint connecting the capillary, the valve and the outlet pipe of condenser to remove the capillary.
  • Page 72 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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