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Disconnect power and check if
the connection wire of indoor
and outdoor units and the
built-in wire of electric box are
correctly connected.

Correct connection?

Connect the wire
properly according
to the wiring
diagram.

Is malfunction
eliminated?

Main board matches with display
board? Main board of IDU
matches with that of ODU?

Match correctly
according to
product
specification.

Connection of communication
wire is damaged or not?

Replace the
connection wire.

Replace the main
board of IDU.

Replace the main
board of ODU.

End

Yes

Troubleshooting for E6

malfunction

Содержание GC09IT

Страница 1: ...Service Manual R410A Vidicon Ltd Commercial Air Conditioners R410A Systems 0RGHOV 7 7 7 7 ...

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Страница 9: ...WLR FFRUGLQJ WR 7HPSHUDWXUH Capacity ratio Outdoor temp C Capacity ratio Outdoor temp C Capacity ratio Capacity ratio Outdoor temp C 20 15 10 5 0 5 10 110 120 130 100 90 80 70 60 50 40 50 60 70 80 90 100 110 120 130 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 50 60 70 80 90 100 110 120 130 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe lengt...

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Страница 11: ... 7 7 0RGHO 7HFKQLFDO QIRUPDWLRQ 6HUYLFH 0DQXDO 2XWOLQH LPHQVLRQ LDJUDP QGRRU 8QLW Φ55 Φ55 41 3 41 3 54 54 5 120 5 548 5 770 201 283 103 2XWGRRU 8QLW XQLW PP 257 320 540 286 510 ...

Страница 12: ...it Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side Gas pipe side Strainer Electron expansion valve Strainer Capillary Accumlator Compressor RQQHFWLRQ SLSH VSHFL FDWLRQ LTXLG SLSH PP DV SLSH PP ...

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Страница 14: ...1625 7 03 1 8 5 725 3 208 1 3 0DLQ RDUG BU BK BN 8 9 6 7 29 203 5 3 3 0 1 2 1 1 1 32 5 1 1 7 7 50 1 29 5 2 5 3527 725 203 203 5 8 9 8 3 1 225 81 7 JURXQG RQO LURQ VKHOO PRWRU DSSOLHV WR WKH 0RWRU 127 02725 3 8 9 8 5 203 203 3527 725 29 5 2 5 7 50 1 7 1 1 32 5 1 1 2 1 1 0 3 3 5 29 203 6 7 9 8 BN BK BU 3 0DLQ RDUG 1 208 3 5 725 8 1 7 03 6 1625 7 03 6 1625 7 03 57 57 57 6 1625 1 9 7521 9 5 0 1 7 5 1 ...

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Страница 17: ...on FAN AUTO OPER HEALTH AIR FILTER TURBO ON OFF X FAN HOUR HUMIDITY ON OFF MODE FAN X FAN TURBO TEMP TIMER SLEEP LIGHT 2 10 7 9 12 8 3 11 6 5 13 4 1 Child lock Left right swing Sleep mode Auto mode Air mode Cool mode Heat mode Fan mode Dry mode Up down swing Indoor ambient temp Set temp Outdoor ambient temp FAN OPER AUTO HEALTH AIR FILTER TURBO ON OFF X FAN HOUR HUMIDITY TIMER ON TIMER OFF Set tim...

Страница 18: ...uvers stops at current position high speed Pressing this button can set fan speed circularly as auto AUTO low medium high Under AUTO Speed IDU fan motor will adjust the fan speed high medium or low speed according to ambient temperature Fan speed under dry mode is low speed Operation indicator is ON ...

Страница 19: ...FDO QIRUPDWLRQ 6HUYLFH 0DQXDO no display no display swing angle is displayed dynamically horizontal louvers stops at current position swing angle is displayed dynamically This function is applicable to partial of models ...

Страница 20: ... 7 7 0RGHO 7HFKQLFDO QIRUPDWLRQ 6HUYLFH 0DQXDO Signal sender Battery Cover of battery box Remove Reinstall ...

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Страница 28: ... indoor 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 installation Note this flow is only for reference please find the more detailed installation steps in this section Select outdoor unit installation location Install the support of outdoor unit select it a...

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Страница 42: ...oller loosened or poorly contacted Insert the temperature sensor tightly Yes Is malfunction eliminated Is there short circuit due to trip over of the parts Make the parts upright Is malfunction eliminated Replace the mainboard with the same model End No Is the temperature sensor normal according to the Resistance Table Replace it with a temperature sensor with the same model Is malfunction removed...

Страница 43: ... Is malfunction eliminated Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened Yes Is the motor started up Is malfunction eliminated Is malfunction eliminated Tighten the screw reassemble the blade motor and shaft bearing rubber base sub assy to make sure there is no foreign object between them Replac...

Страница 44: ...inboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model End Yes Yes Assemble the jumper cap with the same model No Is malfunction eliminated No Yes Insert the jumper cap tightly Is malfunction eliminated No No Yes Is malfunction eliminated No Yes Replace the mainboard with the same model for model 12 short x open o nr 1 2 3 4 5 set o x x x o ...

Страница 45: ... for U8 malfunction Re energize1 minute after de erergization U8 is still displayed The unit returns to normal Conclusion U8 is displayed due to instant energization afte de energization while the capacitor discharges slowly The zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same model End No Yes ...

Страница 46: ...he wiring diagram Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Main board matches with display board Main board of IDU matches with that of ODU Match correctly according to product specification Connection of communication wire is damaged or not Replace the connection wire Replace the main board of IDU Replace the main board of ODU End No ...

Страница 47: ...oltage 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 power and repair the power supply to restore the range 210VAC 250VAC power on and restart the unit If the fault is eliminated Shut down the power and wait 20 minutes or use DC voltmeter to measure the volt...

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Страница 49: ...he voltage 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 to Technical Service Manual and then energize and start the unit If there is any abnormality described above Replace the control panel AP1 If the connection between AP1 and COMP is unsecure or t...

Страница 50: ...high temperature protection 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 it after the outdoor ambient temp erature is normalized Improve the heat dissipation environ ment of the unit Does the outdoor fan work normally 1 Check if the fan terminal OFAN ...

Страница 51: ...WLPH IRU FRPSUHVVRU VWRSSLQJ 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 compressor connected correctly Is connection sequence right Connect the wires as per the connection diagram Replace the control panel AP1 If the fault is eliminated Replace the compres...

Страница 52: ...he wires for the compressor 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 compressor End Out of step occurs in operation Is the outdoor fan working normally Is the outdoor unit blocked by foreign objects Replace the control panel AP1 If the fault is elim...

Страница 53: ...URFHVV 20 minutes after 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 hole and the fifth pin are almost the same less than 100 ohm Replace the electronic expansion valve If the fault is eliminated If the fault is eliminated Replace the control panel...

Страница 54: ...y damage or short circuit 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 The capacitor is short circuited and the capacitor should be repla ced Restart the unit If the fault is eliminated Disconnect the terminals for the reactor and measure the resistance...

Страница 55: ...ipment operate normally 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 the fault is eliminated The communication circuit is abnormal Replace the main board of the indoor unit End If the fault is eliminated Replace the main board AP1 of the outdoor uni...

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Страница 63: ... is kept pushing for 5 seconds aforced cooling op eration willbe carried out for approx 15minutes Pull protrusions on left and right sides of panel with fingers and open front grille all the way 1 Lift center section of air filter and disengage hooks 2 Left and right filters are interchangeable To re install insert air filter along the guide Remove air filter by pulling forward 3 Hooks Air filter ...

Страница 64: ...ilters are interchangeable To re install insert air filter along the guide Remove horizontal blade by pulling forward 2 And pull out the front panel forward to remove Hook a finger onto the projection part provided on the both sides of the unit s panel and open up the panel to the position higher than it will stop 3 Left Rotary shaft Rotary shaft Right Horizontal blade Remove the front panel from ...

Страница 65: ... hooks in the left and the right Remove the 3 screws in the right and the left which fix the main body with the front grille 1 Disengage the hooks by pressing knobs with a screwdriver screws screws electric box cover Disengage the 3 hooks on the upper part In case that the hooks are not pressed from above remove the front panel and then remove the grille while pushing the hook through a clearance ...

Страница 66: ...n The set of vertical blades is not marked for difference between right and left 1 Unfasten the hooks at the upper 2 positions 2 Unfasten the 3 hooks at the shaft mounting part by pressing them with a flat screwdriver 3 Remove the vertical blade Repeat the same procedure to remove the vertical blade on the other side Hooks Hooks Vertical blade Steps Points Procedure ...

Страница 67: ...so that the retainer will not touch the harness same as the existing models Remove temperature sen sor 3 Remove a screw on the terminal board 4 Screw Earth wire Take care not to lose the clip of thermistor Terminal board Connecting wires R11244 Heat exchanger thermistor Clip R11268 Heat exchanger thermistor The electrical box can be removed instead of disengaging the terminal board Steps Points Pr...

Страница 68: ...ODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO Remove a screw on the electrical box 6 Pull up the electrical box forward to remove 7 Remove fan motor Signal Wire 5 fan motor Signal Wire Hook Bottom frame Steps Points Procedure ...

Страница 69: ...en the hooks at the upper 2 positions of the shield plate 2 Unfasten the hook at the lower position and remove the shield plate 1 3 Lift the shield plate 2 and unfasten the 2 hooks 4 Slide the shield plate 2 and remove it Hooks shield plate 1 Hook Hooks Shield plate 2 8 Remove the shield plate and control PCB Steps Points Procedure ...

Страница 70: ... 7 7 0RGHO QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO Remove display PCB sub Assy 6 Remove swing motor 7 Take off wiring terminal 5 Swing motor Display PCB ASSY Steps Procedure Points ...

Страница 71: ...LFH 0DQXDO 8 To remove the control PCB unfasten the 2 hooks at the upper part from the rear side 9 Lift up the upper part of the control PCB and remove it Control PCB The control PCB is integrated with the power supply PCB Steps Procedure Points ...

Страница 72: ...le Contaminating of air or other gas causes abnormal high pressure in refrigerating cycle and this results in pipe breakage or personal injuries When disconnecting pipes cover every nozzle with caps so as not to let dust and moisture in Wooden base Drain hose Extension drain hose Connecting wires Pay attention so that the residual water in the drain will not make the floor wet Use two wrenches to ...

Страница 73: ...onnected protect the both openings from entering moisture 10 Remove evaporator assy 1 Remove the indoor unit from the installation plate 2 Release the hook of the piping fixture on the back of the unit Gas piping Liquid piping Auxiliary piping Piping fixture Steps Points Procedure ...

Страница 74: ...2 screws in the right and the left which fix the evaporator assy 3 4 Widen the auxiliary piping to the extent of 10 20 5 Pull the evaporator assy to the front side to undo the hooks completely and then lift it Auxiliary piping evaporator Steps Procedure Points Screws ...

Страница 75: ...QXDO 11 Remove cross flow fan and fan Remove the rubber cushion of the bearing motor Bearing Remove cross flow fan and fan motor 1 2 3 Remove the screws at the joint of the cross flow blade and the motor Steps Points Procedure Cross flow fan Fan motor ...

Страница 76: ... 7 7 0RGHO QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO Take down the motor sub assy Remove fan motor Steps Points Procedure 4 5 ...

Страница 77: ...I DOO SRZHU VXSSOLHV DQG GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO EHIRUH UHPRYDO 1 Remove big handle 2 Remove top cover Top cover Big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle Remove 3 connection screws among top cover plate front panel and right sideplate Then remove top cover plate 6WHSV 3URFHGXUH ...

Страница 78: ... remove the 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 flow blade Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate Grille Panel Axial flow blade Right side plate 6W...

Страница 79: ...lder the 4 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 sure not to burn out the lead out wire of compressor 7 Remove 4 way valve assy 8 Remove capillary sub assy Unsolder weld point of capillary Sub assy valve and outlet pipe of condensator Then ...

Страница 80: ...r Remove the 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 Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove Clapboard Sub Assy 6WHSV 3URFHGXUH ...

Страница 81: ... 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 screws fixing liquid valve Unsolder the weld ing spot connecting liquid valve and remove the liquid valve 2 Remove the 3 footing screws of the compressor and remove the compressor Compressor Gas valve Liquid valve 6WHSV 3URFHGXUH ...

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Страница 87: ...Vidicon Ltd Commercial Air Conditioners R410A Systems ...

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