Gree Terra GWH09TB-D3DNA1A Page 94 Service Manual Download

Page: 94 / 142

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to remove the cover.

Remove every wiring terminals, and remove the

electric box cover sub-assy.

Remove the screws fixing connection pipe
clamp, to remove the connection pipeclamp.

7.Remove evaporator sub-assy

electric box cover sub-assy

screw

electric box cover

screw

auxiliary piping

pipe clamp

screw

Steps

Procedure

Summary of Contents for Terra GWH09TB-D3DNA1A

Page 1: ...REE ELECTRIC APPLIANCES INC OF ZHUHAI Change for Life Service Manual 0RGHOV 7 1 HOHFWULFDO KHDWHU 7 1 7 1 HOHFWULFDO KHDWHU 7 1 HOHFWULFDO KHDWHU 7 1 7 1 HOHFWULFDO KHDWHU 7 1 7 1 7 1 7 1 5HIULJHUDQW...

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Page 12: ...ndoor DB 70 F Indoor air flow Super High Pipe length 24 6ft Current A Current A 18K 09K 12K Cooling Heating 0 1 2 3 4 5 6 7 8 9 10 0 20 40 60 80 100 120 Condition Indoor DB 80 6 F WB66 2 F Indoor air...

Page 13: ...F Capacity ratio 89 6 91 4 93 2 95 96 8 98 6 100 4 102 2 109 4 104 105 8 107 6 100 105 95 90 85 80 75 70 65 60 55 50 Outdoor temp F Capacity ratio Conditions Indoor DB80 F WB66 9 F Outdoor DB95 F Indo...

Page 14: ...dB A Right side Front Indoor side noise when blowing 10 20 30 40 50 Indoor fan motor rotating speed Noise dB A Middle Low High Outdoor side noise 30 40 50 60 0 20 40 60 80 100 Compressor frequency Hz...

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Page 19: ...on Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electron expansion valve Strainer Accumlator Compressor Indoor unit Outdoor unit COOLING HEATI...

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Page 22: ...N AC L YEGN 0 RT3 RT2 0 0 T SENSOR DISCHARGE TEMP SENSOR TEMP SENSOR OUTROOM OUTTUBE TEMP SENSOR REACTOR MAGNETIC RING L2 COMP L2 L2 YEGN G PE G INDOOR UNIT BLOCK TERMINAL L2 L1 POWER BN BU MAGNETIC R...

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Page 24: ...re of electric heater of chassis 10 Live wire of 4 way valve 13 Temp sensor 2 Input of live wire of power 5 Interface 2 of electric reactor 8 Neutral wire of electric heater of compressor 11 Live wire...

Page 25: ...r interface 2 Compressor overload protector 3 Temperature sensor 4 Electric expansion valve 5 Fan HALL interface 6 Outdoor fan 7 4 way valve 8 Communication interface with indoor unit 9 Live wire 10 E...

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Page 38: ...Tpreset the unit stops operation when reaching the temperature point in heating 6 2 Under this mode the temperature setting range is 16 30 C 61 86 F 7 Defrosting control heating mode 7 1 If it turns...

Page 39: ...IAC current operation frequency of compressor may decrease or increase 14 2 If 17A IAC current the system will stop operation because of overcurrent the complete unit can resume operation only after t...

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Page 42: ...inch At least 5 8 9 inch Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S Space to the obstruction Drainage pipe Space to the wall Space to the obstruction Spa...

Page 43: ...r unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installati...

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Page 45: ...dle of it Gradienter Left Right Rear piping hole Rear piping hole Space to the wall 5 8 9inch above Space to the wall 5 8 9inch above Outlet pipe Drain hose Drain hose Tape Outlet pipe Insulating pipe...

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Page 51: ...sensor has open or short circuit F5 Blinks for 5 times Blinks for 7 times 14 Communication malfunction of indoor and outdoor units E6 Blinks for 6 times 15 Malfunction of circuit for detecting phase...

Page 52: ...Blinks for 5 times Blinks for 4 times 52 Overlow voltage protection for DC bus bar PL Blinks for 21 times Blinks for 12 times 53 Overhigh voltage protection for DC bus bar PH Blinks for 11 times Blink...

Page 53: ...indoor unit Yellow indicator blinks for twice Yellow indicator blinks for 4 times Yellow indicator blinks for 5 times Yellow indicator blinks for 6 times Yellow indicator blinks for 7 times Yellow in...

Page 54: ...too much refrigrant blockage of capillary an dincrease of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunction of protector Processing meth...

Page 55: ...otor operates During heating operation the complete unit stops Refer to the corresponding malfunction analysis 6 High temperature resistant protection E8 OFF 3S and blink 8 times During cooling operat...

Page 56: ...n compressor will sop after operating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after operating for about 3 mins 1 Outdoor temperature sensor...

Page 57: ...sor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurre...

Page 58: ...voltage dropping for DC bus bar U3 OFF 3S and blink 20 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop...

Page 59: ...yes Malfunction is eliminated Replace the controller with one ofthe same model End no no no no yes yes Malfunction is removed no yes yes no Is the wiring terminal between temperature sensor and the co...

Page 60: ...motor can operate smoothly Is malfunction eliminated Reinsert the wiring terminal of indoor fan It s the malfunction of main board Replace the main board with the same model It s the malfunction of m...

Page 61: ...he controller Install a matching jumper cap No Is the jumper cap inserted incorrectly or improperly Re insert the jumper cap The mainboard is defined abnormal replace it Yes No Yes End Is the malfunct...

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Page 63: ...h the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut down th...

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Page 65: ...tage between the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according...

Page 66: ...1 Check if fan terminal OFAN is connected well 2 Test if resistance value of any two terminals is less than 1k with ohmic meter If the indoor and outdoor fan work well After the unit de energized for...

Page 67: ...COMP UVW is well connected and connection sequence is correct Replace control board AP1 Replace the compressor If malfunction is removed If the stop time of compressor is more than 3min N If the stop...

Page 68: ...works normally If the stop time of compressor is more than 3min Synchronism after energize the unit and start it Connect wire well Synchronism occurred during operation Replace control board AP1 If t...

Page 69: ...g diagram Replace EKV coil of electron expansion valve If the wiring terminal FA of electron expansion is well connected Remove malfunction The resistance value of first 4 l ead foot an d th e fifth l...

Page 70: ...nals Capacity is short circuit and replace it Y Re energize the unit and start it Cut the terminal of reactor test the resistance between two terminals of reactor with ohmic meter Replace the reactor...

Page 71: ...tart Check communication circuit of outdoor unit Problem of communication circuit Check built in wiring of indoor and outdoor unit Connection correct Malfunction of circuit is detected with control bo...

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Page 90: ...XSSOLHV DQG GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO EHIRUH UHPRYDO 1 Before disassembling the unit Before disassembling the unit 2 Remove filter Open the panel Loosen the clasps on filter push the filter...

Page 91: ...guide louver to remove it b c Remove the axial bushing of small guidelouver Remove the rotating shaft of small guide louver from the groove slightly bend the small guide louver to remove it d big guid...

Page 92: ...he display 5 Remove front case a Remove the screws fixing electric box cover 2 to remove the electric box cover 2 electric box cover 2 screw b Remove the screws fixing front panel loosen the clamps to...

Page 93: ...ing rod to remove the swing connecting rod b remove the swing fan blade a Remove the indoor tube temp sensor b Remove the screws fixing earth wire to remove the earthwire swing fan blade clamp clamp s...

Page 94: ...wiring terminals and remove the electric box cover sub assy a Remove the screws fixing connection pipe clamp to remove the connection pipeclamp 7 Remove evaporator sub assy electric box cover sub assy...

Page 95: ...xing evaporator sub assy slightly regulate the tube to remove the evaporator sub assy a motor to remove the motor b to remove the motor 8 Remove cross fan blade and motor auxiliary piping evaporator s...

Page 96: ...ws fixing motor clamp to remove the motor clamp d Remove the cross fan blade and motor e Remove the shafting bearing cushionrubber base f bladeandmotor and then remove the motor screw motor clamp bear...

Page 97: ...nit Before disassembling the unit 2 Remove filter Open the panel Loosen the clasps on filter push the filter inward and then pull it upward then the filter can be removed a b 3 Remove guide louver Rem...

Page 98: ...guide louver to remove it b c Remove the axial bushing of small guide louver Remove the rotating shaft of small guide louver from the groove slightly bend the small guide louver to remove it d big gui...

Page 99: ...the display 5 Remove front case a Remove the screws fixing electric box cover 2 to remove the electric box cover 2 electric box cover 2 screw b Remove the screws fixing front panel loosen the clamps t...

Page 100: ...ng rod to remove the swing connecting rod b remove the swing fan blade a Remove the indoor tube temp sensor b Remove the screws fixing earth wire to remove the earth wire swing fan blade clamp clamp s...

Page 101: ...iring terminals and remove the electric box cover sub assy a Remove the screws fixing connection pipe clamp to remove the connection pipe clamp 7 Remove evaporator sub assy electric box cover sub assy...

Page 102: ...xing evaporator sub assy slightly regulate the tube to remove the evaporator sub assy a motor to remove the motor b to remove the motor 8 Remove cross fan blade and motor auxiliary piping evaporator s...

Page 103: ...fixing motor clamp to remove the motor clamp d Remove the cross fan blade and motor e Remove the shafting bearing cushion rubber base f blade and motor and then remove the motor screw motor clamp bea...

Page 104: ...ore disassembly of the unit Before disassembling the unit 2 Remove filter Open the panel Loosen the clasps on filter push the filter inward and then pull it upward then the filter can be removed a b S...

Page 105: ...Remove the screws fixing display on the panel to remove the display Along the groove fixing front panel slide the rotor shaft outward to remove the front panel screw Unscrew a screw of electric box c...

Page 106: ...al louver to remove the axial bush a Remove Axial bush b a Take out the front case to separate the front case with bottom assembly b 6 Remove front case Remove the screw cover of front case unscrew th...

Page 107: ...box cover to separate the electric box cover 2 b c screw earth wire Remove every wiring terminals and remove the screws fixing electric box to remove the electric box sub assy electric box Remove Tem...

Page 108: ...ction pipe clamp to remove the connection pipe clamp pipe clamp evaporator sub assy water tray Loosen the clasps connecting the water tray and chassis and then remove the water tray Remove the screws...

Page 109: ...the pipe line to the position as shown by the broken line d e Remove the 2 screws of step motor with screwdriver and remove the step motor a 9 Remove the cross flow louver and motor srews srews Lift u...

Page 110: ...RQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO Remove screws fixing cross flow blade and motor b c Pull out the plug of ring of bearing Remove the motor sub assy d Cross blow blade Fan motor Ring of Bearing Steps...

Page 111: ...F KHDWHU EDQG LV QRW VKRZQ EHORZ 1 Before disassembly Remove the screws connecting top cover left and right side plate as well as panel to remove the top cover 2 Remove top cover top cover Remove the...

Page 112: ...ws fixing panel to remove the panel Remove the screws connecting panel grille and panel loosen the clamp to remove the panel grille 4 Remove panel and grille panel grille Remove the screw fixing valve...

Page 113: ...e plate 6 Remove left side plate left side plate Remove the screw nut fixing cross fan blade remove the gasket and spring cushion to remove the cross fan blade 7 Remove cross fan blade cross fan blade...

Page 114: ...x assy electric box assy cover electric box Remove the screws fixing electric reactor to remove the electric reactor 10 Remove electric reactor electric reactor Remove the four tapping screws fixing m...

Page 115: ...isolation board Welding cut the spot weld of four way valve assy compressor air suction discharging valve and condenser pipe outlet lift to remove the four way valve assy Note release the refrigerant...

Page 116: ...UYLFH 0DQXDO Remove screws connecting condenser assy and chassis to remove the condenser assy Remove the screws fixing big and small valve to remove the valves 15 Remove big and small valve assy conde...

Page 117: ...emove the big handle Remove the screw connecting the valve cover and right side plate and then remove the valve cover 2 Remove grille and outer case grille Remove the 4 screws connecting the grille an...

Page 118: ...ide plate and left side plate and then remove the outer case Remove the screws connecting the right side plate with electric box assy valve support chassis and condenser side plate and then remove the...

Page 119: ...he 2 screws connecting the motor support and chassis and then loosen the stopper to remove the motor support Remove the screws fixing the electric box sub assy loosen the wire bundle pull out the wiri...

Page 120: ...n remove the isolation plate Unsolder the welding joints connecting the 4 way valve assy with capillary sub assy compressor and condenser remove the 4 way valve Note Before unsoldering the welding joi...

Page 121: ...of discharge pipe and suction pipe from foreign objects Remove the screws connecting the support condenser and condenser assy and then remove the support condenser Remove the 2 screws fixing the cond...

Page 122: ...top panel 3 Remove front side panel front side panel Loosen the screws connecting the front side panel and chassis Remove the front side panel Procedure valve cover Remove the screw connecting the big...

Page 123: ...he panel Twist off the screws connecting the grille and panel and then remove the grille 5 Remove right side plate right side plate Twist off the screws connecting the right side plate and chassis val...

Page 124: ...iers pull out the wiring terminal pull it upwards to remove the electric box electric box fireproofing Twist off the screws on electric box fireproofing with screwdriver and then remove the electric b...

Page 125: ...motor support Twist off the screws connecting isolation sheet and end plate of condenser and chassis and then remove the isolation sheet 11 Remove 4 way valve 10 Remove isolation sheet isolation sheet...

Page 126: ...joint wrap the gas valve with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint between liquid valve and connection pipe o...

Page 127: ...eft 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 Pull it upwards to separate the chassis and condense...

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Page 133: ...ng mode 9 Defrosting function for the outdoor unit 10 Gate control function this function is yet unavailable for this unit 11 Lock function 12 SHIELD Shield functions Button operation temperature sett...

Page 134: ...n speed 4 Mode Setting of the Cooling Heating Fan Dry Auto mode of the indoor unit 5 Function Switchover among the functions of Turbo Save E heater Blow etc 7 Timer Timer setting 8 On Off Turn on off...

Page 135: ...Under on state of the unit Press Timer button to set timer off of the unit Under off state of the unit press Timer button to set timer on of the unit in the same way Timer on setting Under off state...

Page 136: ...3 6 Swing Setting Swing On Press Function under on state of the unit to activate the swing function In this case will blink After that press Enter Cancel Swing Off When the Swing function is on press...

Page 137: ...this temperature In the Heating mode the temperature will decrease by 1 C 2 F after the unit runs under Sleep 1 for 1hr and 1 C 2 F after another 1hr After that the unit will run at this temperature S...

Page 138: ...Setting Blow function After the unit is turned off the water in evaporator of indoor unit will be automatically evaporated to avoid mildew In the Cooling or Dry mode press Function till the unit enter...

Page 139: ...been set for the wired controller the wired controller after power failure will resume its original running state upon power recovery Memory contents On Off Mode set temperature set fan speed and Lock...

Page 140: ...ler together Please pay special attention to the followings during the connection to avoid the malfunction of the air conditioning unit due to electromagnetic interference Separate the signal and comm...

Page 141: ...Current protection H5 Over power protection L9 Compressor phase loss reversal unit protection Ld System charge shortage or blockage protection F0 F whole current protection requency restricted reduced...

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