Download Print this page

Advertisement

Quick Links

Change for Life

Service Manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

Advertisement

loading

Summary of Contents for Gree GWH09UB-D3DNA1A

  • Page 1: Service Manual

    Change for Life Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 5 Installing, starting up, and servicing air conditioner can be Make sure the outdoor unit is installed on a stable, level surface with no accumulation of snow, leaves, or trash hazardous due to system pressure, electrical components, and equipment location, etc. beside.
  • Page 8: Outdoor Temp

    Cooling Heating Conditions Conditions Indoor:DB20 Indoor:DB27 WB19 Outdoor:DB7 Outdoor:DB35 Air flow:Super high Air flow:Super high Pipe length:7.5m Pipe length:7.5m Voltage:208/230V Voltage:208/230V Compressor speed(rps) Compressor speed(rps) Heating Cooling Conditions Conditions Indoor:DB20 Indoor:DB27 WB19 Indoor air flow:Super high Indoor air flow:Super high Pipe lenght:7.5m Pipe lenght:7.5m 32 33 34 35 36 37 38 39 40 41 42 43 44 45...
  • Page 10 Φ55 Φ55...
  • Page 12: Indoor Unit

    Indoor unit Outdoor unit Wide tube service Accumlator valve Wide tube 4-way valve Narrow tube Capillary service tube valve Narrow tube Strainer Capillary Check valve tube Cooling cycle Heating cycle...
  • Page 13 Symbol Color symbol Symbol Color s ymbol ORANGE BROWN VIOLET BLUE WHITE BLACK YELLOW Symbol Parts name COMP COMPRESSOR PROTECTIVE YEGN YELLOW GREEN EARTH COM-OUT AC-L AIR-L AIR-N...
  • Page 14 YEGN YEGN YEGN YEGN YEGN...
  • Page 15 Neutral wire of power cord Interface of vertical swing Jumper cap Interface of horizontal swing Interface of display panel Interface of pipe temp sensor Interface of ambient temp sensor...
  • Page 16 Interface of Interface of Interface of connecting Interface of connecting ground wire electric heater wire between boards wire between boards Interfaces of Interface of neutral and electric reactor live wire Interface of DC fan Interface of communication wire Interfaces of temp sensor and overload...
  • Page 17 Neutral wire of Neutral wire of Interface Live wire of electric heater electric heater Neutral wire of 1 of electric Interface of fan 4-way valve of chassis of compressor 4-way valve reactor Live wire of electric heater Input of ground wire of power Communication interface...
  • Page 18 ON/OFF Press it to start or stop operation. Press it to decrease temperature setting. Press it to increase temperature setting. MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT). Press it to set fan speed. SWING Press it set swing angle. I FEEL Press it to set HEALTH or AIR function.
  • Page 19 MODE Each time you press this button,a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN,and HEAT *, as the following: AUTO COOL HEAT* *Note:Only for models with heating function. After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.
  • Page 20 TEMP Press this button, could select displaying the indoor setting temperature or indoor ambient temperature.When the indoor unit firstly power on it will display the setting temperature, if the temperature's displaying status is changed from other status to" ",displays the ambient temperature, 5s later or within 5s, it receives other remote control signal that will return to display the setting temperature.
  • Page 21: Replacement Of Batteries

    Replacement of Batteries 1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure) 2.Take out the old batteries. 3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity. 4. Reinstall the battery cover plate. Notes: ●When replacing the batteries, do not use old or different types of batteries, ●If the remote controller will not be used for a long time, please...
  • Page 22 Start cooling amb. preset Original working state preset Stop cooling 6 minutes 3 minutes 6 minutes Compresso r Outdoor fan Preset wind speed Indoor fan Stop...
  • Page 26 Full-open degree (Max degree) Full-dose degree P0 (Initial point):0 degree Lower-limit degree...
  • Page 29 Space to the ceiling 15cm Above Space to the wall 15cm Above Above 15cm 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 include the minimum permissible distances to adjacent parts.
  • Page 30 Wall Wall Mark on the middle of it Gradienter Space Space to the to the wall wall 150mm 150mm above above Right Left Ф55mm Ф55mm (Rear piping hole) (Rear piping hole) Outdoor Indoor Wall pipe Seal pad Ø outlet pipe of indoor unit rubber belt outlet pipe of...
  • Page 31: Torque Wrench

    Wiring Cover N(1) outdoor uint connection External connection Gas side piping electric wire Liquid side piping Tailing 2 Tailing 1 Gas side piping insulation Liquid side Piping insulation Fig.2 Finally wrap it Water drainage pipe with tape Left Left rear Right Fig.3 Right rear...
  • Page 32 09K 12K Handle N(1) Wire hole Power connect cord Power cord lock nut Finish conduit Manifold Valve Multimeter Manometer -76cmHg Hi handle Lo Handle Charging hose Low pressure valve Vacuum pump Drain-water hole Bottom frame Drain plug Drain connecter Hose (available commercially, inner dia.
  • Page 34 Fig. a Fig. b Air filter Healthy filter Fig. c...
  • Page 42 Note:When replacing the controller, make sure insert the wire jumper into the new controller, otherwire the unit will display C5. Measure insulation resistance The breaker trips at once when it to ground to see if there is any is set to “ON”. leakage.
  • Page 43 Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper heck and fill the leakage, then The refrigerant has leakage or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres- Replace the compressor sure and the low pressure in-...
  • Page 44 The indoor fan motor is burned or breaks or has the heat protector Replace the fan motor or the defective part. malfunction. The built-in heat protector of the Replace the fan motor The fan does not motor breaks frequently because the run when it is set motor is abnormal.
  • Page 45 The torque of the swing motor is not enough First, check whether the connection is Wrong connection The swing fan wrong. If no, replace the parts does not run. The controller is damaged(IC2003 is damaged, the swing relay can not close, etc) C o n t r o l l e r m a l f u n c t i o n ( I C 2 0 0 3 Change controller...
  • Page 46: Yellow Led

    Name of Operation Status Yellow LED Red LED Green LED Display on IDU Compressure operates Blink once n i l n i l H5(displayed after it occurs for IPM protection Blink for 4 times successively 6 times) n i l n i l n i l n i l...
  • Page 49 Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor. Fault with the voltage Replace the control testing circuit on Voltage higher than 200V? panel AP1 control panel AP1 Measure the AC voltage between terminal L and N on wiring board XT(power supply)
  • Page 50 Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
  • Page 51 Overheat and high temperature protection Normal protection, please operate it after the Is outdoor ambient temperature higher than 53? outdoor ambient temperature is normalized. 20 minutes after the complete unit is powered off. Improve the heat Is heat dissipation of the indoor unit dissipation environment and outdoor unit abnormal? of the unit...
  • Page 52 Power on the unit Is stop time of the compressor Restart it up after 3 minutes longer than 3 minutes? Does startup fail? Are the wires for the compressor connected Connect the wires as per the correctly? Is connection sequence right? connection diagram Replace the control panel AP1 If the fault is eliminated?
  • Page 53 Out of step occurs in Out of step occurs once the operation unit is powered on. Check if the fan terminal Is stop time of the Replace the fan Is the outdoor fan working OFAN is connected correctly compressor longer than capacitor C1 normally? 3 minutes?
  • Page 54 20 minutes after the complete unit is powered o ff Is the terminal FA for the Connect the wires correctly connected correctly? Resistances between the first four pins close to the terminal hole and the fifth pin are almost the same, less than 100 ohm.
  • Page 55 Power factor correct or (PFC) fault (a fault of outdoor unit)(AP1 here in after refers to the control board of the outdoor unit) Start Check wiring of the reactor (L) of the outdoor unit and the PFC capacitor Replace it as per the Whether there is any wiring diagram and If the fault is eliminated?
  • Page 56 Start Did the equipment operate normally before the failure occurs? Check the wiring of the indoor and outdoor units with reference to the wiring diagram Check wiring inside of the indoor and outdoor Is the connection right? units Correctly connect the corresponding wires for The AP1 voltage Are wires broken?
  • Page 57 Appendix 1: Resistance Table for Indoor and Outdoor Ambient Temperature Sensors (15K) Temp. Temp. kΩ kΩ kΩ Temp. kΩ Temp. 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 58 Appendix 2: Resistance Table for Indoor and Outdoor Tube Temperature Sensor (20K) kΩ Temp. kΩ Temp. kΩ Temp. kΩ Temp. Resistance 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 59 Appendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K) Temp. kΩ kΩ kΩ 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 60 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly.
  • Page 66 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. Remove big handle Cable Cross Plate Remove connection screw fixing cable cross plate and valve cover then remove them Valve Cover Remove top cover plate Top panel Remove 3 connection screws among...
  • Page 67 3. Remove front grill and front panel Remove 2 connection screws between front grill and front panel. Then remove front panel. Remove 5 connection screws among front panel, chassis and motor support. Then remove front panel. front panel 4. Remove axial flow fan blade axial flow fan blade Remove nut of fan blade, and then remove axial flow fan blade.
  • Page 68 Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of electric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to remove the electric box assy. 7. Remove 4-way Valve Assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy Assy coil and remove the coil.
  • Page 69 9. Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
  • Page 70 11. Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve. (Note: it is necessary to warp the gas valve when unsoldering the welding spot.) Remove the 2 Liquid valve screws fixing liquid valve.
  • Page 71 Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. Remove big handle Cable Cross Plate Remove connection screw fixing cable cross plate and valve cover then remove them Valve Cover Remove top cover plate Top panel Remove 3 connection screws among...
  • Page 72 3. Remove front grill and front panel Remove 2 connection screws between front grill and front panel.Then remove front panel. frontgrill Remove 5 connection screws among front panel, chassis and motor support. Then remove front panel. front panel 4. Remove right side plate right side plate Remove 7 connection screws among right side plate, chassis, valve support and...
  • Page 73 5. Remove axial flow fan blade axial flow fan blade Remove nut of fan blade, and then remove axial flow fan blade. Remove electric box assy Reactor sub-assy Remove the screws of theReactor sub-assy and then remove it. Electric box assy Remove the 2 screws fixing the cover of elec- tric box.
  • Page 74 7. Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
  • Page 75 10. Remove Clapboard Sub-Assy Clapboard Sub-Assy Loosen the screws of the Clapboard Sub-Assy . The Clapboard Sub-Assy has a hook on the lower side. Lift and pull the Clapboard Sub-Assy to remove. 11. Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve.
  • Page 76 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.