Technibel GRFX93-123 Service Manual Download Page 1

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SERVICE MANUAL

Condizionatore d’aria split - Split air conditioner • Climatiseur split

Split-klimagerät - Acondicionador de aire split

DC INVERTER

MAFX/GRFX93-123

DC INVERTER

Summary of Contents for GRFX93-123

Page 1: ...SERVICE MANUAL Condizionatore d aria split Split air conditioner Climatiseur split Split klimager t Acondicionador de aire split DC INVERTER MAFX GRFX93 123...

Page 2: ...nput W 220 250 Max Heating Power Input W 1400 1550 Rated Input W 1400 1600 Standby power consumption W 1 1 Cooling Current Input A 3 80 5 20 Heating Current Input A 3 92 5 30 Rated Cooling Current A 7...

Page 3: ...B A 40 42 Indoor Unit Sound Power Level SL dB A Indoor Unit Dimension W mm 845 845 Indoor Unit Dimension W inch 33 1 4 33 1 4 Indoor Unit Dimension H mm 275 275 Indoor Unit Dimension H inch 10 5 6 10...

Page 4: ...utdoor Unit Sound Power Level M dB A Outdoor Unit Sound Power Level L dB A Outdoor Unit Dimension W mm 776 776 Outdoor Unit Dimension W inch 30 5 9 30 5 9 Outdoor Unit Dimension H mm 540 540 Outdoor U...

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Page 6: ...80 100 120 Condition Indoor DB 20 Indoor air flow Turbo Pipe length 5m Voltage 230V Compressor Speed rps Cooling Heating Current A Current A 50 60 70 80 90 100 110 32 33 34 35 36 37 38 39 40 41 42 43...

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Page 8: ...7 RQVWUXFWLRQ 9LHZV RQVWUXFWLRQ 9LHZV QGRRU 8QLW 143 80 55 55 2XWGRRU 8QLW 8QLW PP 320 776 510 714 257 286 540...

Page 9: ...VWHP LDJUDP 5HIULJHUDQW SLSH GLDPHWHU LTXLG PP DV PP T I N U R O O D T U O T I N U R O O D N I HEAT EXCHANGER EVAPORATOR COOLING HEATING HEAT EXCHANGER EVAPORATOR Strainer Strainer Electron expansion...

Page 10: ...7 50 1 2 1 52 1 8 8 0HDQLQJ RI PDUNV QGRRU 8QLW L OUT L1 L1 RT1 RT2 M JUMP CAP TEM SENSOR ROOM TUBE TEM SENSOR FAN MOTOR SWING MOTOR U D AP2 SWING UD K4 TUBE ROOM AC L PG PGF DISP 1 DISP 2 CN2 CN1 AP...

Page 11: ...3 CN2 4V N1 AC L1 L FAN OFAN COMP COMP AC N1 PE M PE PE MID ISOLATIONSHEET ELECTRICBOX 4YV AC N2 AP1 AP2 AC L AC N L1 L2 E AC L3 AC L2 LX1 2 LX1 1 OVC COMP COM OUT L1 PE PE CN1 CN3 BK BU BN BK BU YEGN...

Page 12: ...e Port of indoor fan Solid state relay Auto button Feedback of indoor fan Port of motor for vertical swing Port of motor for horizontal swing Buzzer Port of indoor ambient temp sensor Port of indoor p...

Page 13: ...8QLW inductance pin1 inductance pin2 fan neilsbed four way valve compressor electric heater chassis electric heater compressor temp sensor overload protection electric expansion valve 10 core communi...

Page 14: ...mb Tpreset COOL mode will act the compressor and outdoor fan will run and the indoor fan will run at the set speed If Tamb Tpreset 2 the compressor will stop the outdoor fan will delay 30 seconds to s...

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Page 22: ...l Air outlet side Space to the floor Above Above cm Above Above Space to the obstruction Air outlet side Space to the wall Air inlet side The dimensions of the space necessary for proper installation...

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Page 27: ...upply circuit Power plug is not well plugged in and poor connection Check if the plug is properly plugged in and make the loose contact firm Fuse of controller burnt out The air condi tioner does not...

Page 28: ...ion for the thick and thin pipes is good Heat insulation must also be provided for the joint andthe exposed part of the copper pipe Block of outdoor heat ex changer Clean the dust accumulated on the s...

Page 29: ...stat is recommended Wrong wire connection Connect the circuit diagram correctly The built in heat protector of the motor breaks frequently because the motor is abnormal Replace the fan motor Adjust th...

Page 30: ...ipe blocked or broken Change drainage pipe Re wrap and make it tight Wrap of refrigerant pipe joint is not close enough Water leakage Change controller Wire loose or wrong connection In cool heat mode...

Page 31: ...arge protection overload 5 Overcurrent protection E5 OFF 3S and blink 5 times OFF 1S and blink 5 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates Dur...

Page 32: ...nt temperature sensor is open short circuited F3 OFF 3S and blink 3 times OFF 1S and blink 6 times During cooling and drying operating compressor stops while indoor fan operates During heating operati...

Page 33: ...T if the voltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control...

Page 34: ...s of capacitor 29 Malfunction of module temperature sensor circuit P7 OFF 3S and blink 18 times During cooling and drying operation compressor will stop while indoor fan will operate During heating op...

Page 35: ...Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit 38 Desynchro nizing of compressor H7 OFF 3S and blink 7 times During cooling and drying operation compressor...

Page 36: ...46 Malfunction of complete units current detection U5 OFF 3S and blink 13 times During cooling and drying operation the compressor will stop while indoor fan will operate During heating operating the...

Page 37: ...of display status and during blinking ON 0 5s and OFF 0 5s Operation Indicator Cool Indicator Heating Indicator Yellow Indicator Red Indicator Green Indicator 53 Normal communica tion 54 Defrosting O...

Page 38: ...e 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 the po...

Page 39: ...conditions resulting in that the system pressure becomes too high The connection of capacitor C2 is loose Reconnect the capacitor C2 according to Electrical Wiring Diagram Then Restart the unit Stop t...

Page 40: ...ction Is outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protection please operate...

Page 41: ...RSSLQJ HQRXJK DXOW GLDJQRVLV SURFHVV Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the wires for the compre...

Page 42: ...ressor connected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated Replace the c...

Page 43: ...er the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins close to the terminal...

Page 44: ...rcuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated Remove the PFC capacitor and measure resistance between the two terminals Is the resistance around zero Th...

Page 45: ...ly before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of the outdoor unit If t...

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Page 47: ...at the Test 15 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 11 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Te...

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Page 54: ...II DOO SRZHU VXSSOLHV EHIRUH GLVDVVHPEO Procedure Steps 1 Remove big handle 2 Remove top cover top cover big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big...

Page 55: ...he front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel Remove the nut fixing the blade and then remove the axial flo...

Page 56: ...weld spots connecting the 4 way Valve Assy to take it out Note Refrigerant should be discharged firstly Welding process should be as quickly as possible and keep wrapping cotton wet all the time Be s...

Page 57: ...he 2 tapping screws fixing the motor support Lift motor support to re move it 9 Remove motor and motor support Motor Motor support 10 Remove clapboard sub assy Loosen the screws of the Clapboard Sub A...

Page 58: ...return pipe and remove the gas valve Note it is necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot connecting liquid v...

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Page 60: ...arming Potential GWP 1975 FR Ne d chargez pas R410A dans l atmosph re R410A est un gaz fluor effet serre couvert par le protocole de Kyoto avec un potentiel de chauffage global GWP 1975 DE Zerstreuen...

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Technibel GRFX93-123, Service Manual

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