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INVENTOR C2VI-18 Service Manual
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INVENTOR C2VI-18 Service Manual

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Service Manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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Summary of Contents for INVENTOR C2VI-18

  • Page 1: Service Manual

    Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 4 C2VO-18 B2VO-18 B2VO-18 C2VO-18...
  • Page 5 C2VO-24 B2VO-24...
  • Page 6 C2VI-18 / C2VO-18 B2VI-18 / B2VO-18 C2VI-18 B2VI-18...
  • Page 7 C2VO-18 / B2VO-18...
  • Page 8 C2VI-24 / C2VO-24 B2VI-24 / B2VO-24 C2VI-24 B2VI-24...
  • Page 9 C2VO-24 / B2VO-24...
  • Page 10 Cooling Heating 220V 220V • Conditions Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V • Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) Cooling...
  • Page 11 Cooling Heating • Conditions • Conditions Indoor: DB20°C/WB15°C Indoor: DB27°C/WB19°C Outdoor: DB7°C/WB6°C Outdoor: DB35°C/WB24°C Indoor air flow: High Indoor air flow: High Pipe length: 5m Pipe length: 5m Outdoor temp. (˚C) Outdoor temp. (˚C)
  • Page 12 Indoor side noise when blowing Outdoor side noise High Super High Middle Indoor Fan Motor Rotating Speed Compressor frequency/Hz...
  • Page 13 Φ55 Φ55 Φ70 Φ70...
  • Page 14 1000...

  • Page 15: Indoor Unit

    Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction exchanger (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Strainer COOLING HEATING...
  • Page 16 B2VI-18...
  • Page 17 C2VI-18 / C2VI-24 POWER AP1:MAIN BOARD C2VO-18 / B2VO-18...
  • Page 19 C2VI-24 / B2VI-24...
  • Page 23 ON/OFF Button MODE Button +/- Button FAN Button Button CLOCK Button TIMER ON/TIMER-OFF Button X-FAN Button TEMP Button TURBO Button LIGHT Button SLEEP Button Operation mode Set fan speed Send signal Auto mode Cool mode X-fan mode Dry mode Fan mode Set temperature Heat mode Turbo mode...
  • Page 24 Auto no display (horizontal louvers stops at current position)
  • Page 25 no display...
  • Page 26 Signal sender Battery Reinstall Cover of Remove battery box Panel Emergency operation switch...

  • Page 27: Introduction For Icons On Display Screen

    Buttons on remote controller ON/OFF button ▲ button MODE button SWING button button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button I FEEL button button Introduction for icons on display screen Set fan speed I feel Send signal...
  • Page 28 3. MODE button 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: HEAT AUTO COOL * 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 29: Function Introduction For Combination Buttons

    13. X-FAN button X-FAN function: In COOL or DRY mode, the icon is displayed and the indoor fan willcontinue operation for 2 minutes in order to dry the indoor unit even though you haveturned off the unit. After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.
  • Page 30 Note: ● During operation, point the remote control signal sender at the receiving window on indoor unit. ● The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them. ●...
  • Page 42 Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 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 43 Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
  • Page 45 Wall Wall Level meter Mark in the middle of it Space Space to the to the Open-end wrench wall wall above above Union nut 150mm 150mm Pipe Pipe joint Union nut Pipe Torque wrench Right Left Φ55/70mm Φ55/70mm Indoor pipe Rear piping hole Rear piping hole Insulating pipe...
  • Page 46 Screw Panel Wiring cover Indoor and outdoor power cord Indoor unit pipe Liquid pipe Band Drain hose connection wire sleeve Drain hose Connection pipe Band Indoor power cord Cooling and heating unit blue black brown yellow- green Connect to outdoor unit Wiring board ( 1 ) Wire clip...
  • Page 47 N(1) blue black brown yellow-green Handle Indoor unit connection Wiring board ( 1 ) Wire clip Drain vent Chassis Note: The wiring connect is for reference only, please refer to the actual one . Outdoor drain join t Drain hose At least 3cm above the floor Foot holes Foot holes...
  • Page 48 The drain hose can't be fluctuant The water outlet can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant Liquid valve Piezometer Gas valve Valve cap Refrigerant charging vent Nut of refrigerant Charging vent Vacuum pump Inner hexagon spanner...
  • Page 49 There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within 20min after cutting the power will cause electric shock.
  • Page 50 1.Power supply is abnormal Malfunction Off 3s of zero-cross The complete unit stops 2.Detection circuit of indoor and blink derection control mainboard is 17 times abnormal...
  • Page 51 Complete unit Off 3s current and blink detection 13 times malfunction Off 3s Defrosting will occur in and blink heating mode.Compressor once will operate while indoor It’s the normal state (during fan will stop. blinking, ON 10s and Off 05s)
  • Page 53 Key test point (bottom): Test4 Test2 Test3 Test1 Test9 Tset8 Test5 Test7 Test6 Test11 Test13 Test10 Test12...
  • Page 54 Test point v i l v i l Test 3 Between D and E Electrolytic capacitor of DC bas bar DC 180V-380V Test 4 Between F and G Electrolytic capacitor of switch power DC 180V-380V Both ends of diode Test 5 Both ends of electrolytic Test 6 capacitor C40...
  • Page 55 Malfunction indicator of outdoor unit Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor(test 8) Fault with the voltage Replace the control testing circuit on Voltage higher than 200V? panel AP1 control panel AP1 Measure the AC voltage between...
  • Page 56 Fault with outdoor unit) Malfunction indicator of outdoor unit Malfunction IMP protection Out-of-step fault Compressor overcurrent 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 terminal L and N...
  • Page 57 Check unit in cooling mode and check the indoor in heating mode Malfunction indicator of outdoor unit check points: (including if the fan speed is too low) tube temperature sensor of indoor and outdoor unit normal Overload and high temperature protection Is outdoor ambient temperature Normal protection, please operate in cooling mode ? /Is indoor and outdoor...
  • Page 58 Fault with outdoor unit) Malfunction indicator of outdoor unit check points: too much Power on the unit Restart it up after 3 minutes Is stop time of the compressor longer than 3 minutes? Are the wires for the Connect the wires between control compressor(UVW) connected correctly? Is panel AP1 and compressor as connection sequence right?

  • Page 59: Check Points

    Fault with outdoor unit) Malfunction indicator of outdoor unit check points: Out of step occurs once Out of step occurs in the unit is powered on operation Check if the fan terminal Replace the fan Is stop time of the Is the outdoor fan working OFAN is connected correctly capacitor C1...
  • Page 60 Fault with outdoor unit) Malfunction indicator of outdoor unit Malfunction Overload Air exhaust check points: electronic expansion valve the electronic expansion valve overload protector the air exhaust temperature sensor damaged 20 minutes after the unit is powered off Is the overload protector SAT connected well? Check if the resistance of overload protector is less than 1000ohm...
  • Page 61 Malfunction indicator of outdoor unit check points of indoor mainboard of outdoor mainboard(AP1) damage? Start Did the equipment operate normally before the failure occurs? Check the wiring of the indoor and outdoor units according to the wiring diagram Check if the controller connection wire inside the electric box of indoor and Is the connection right? outdoor unit is loose...
  • Page 62 Detection process of outdoor communication circuit (refer to the outdoor key detection points) Start Test the voltage of Test 10 The value is changing Test the voltage of Test 13 The value is changing Fault of outdoor unit Test the voltage of Test 11 The value is changing Test the voltage...
  • Page 70 Steps Procedure 1. Remove top panel Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. handle valve top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 71 Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. Remove the 6 screws connecing the left side plate and right side plate and then remove rear grill rear grill panel 3.
  • Page 72 4. Remove fan motor axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. motor support Remove the 4 tappin g screw s fixing the motor; disconnect the leading wire insert of the motor and then remove the moto r. Remove the 2 tappin g scre ws fixing the motor support and then pull the motor support up wa rds to remove it.
  • Page 73 6.Remove soundproof sponge Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully soundproof sponge 7. Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet. Isolation sheet 8.
  • Page 74 9. Remov e compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. compressor 10.Remove condenser sub-assy capillary sub-assy support Remove the screws connecting the support (condenser) and condenser assy,and then remove the support(condenser). condenser sub-assy Remove the chassis sub-assy and condenser sub-assy.
  • Page 75 Steps Procedure 1. Remove top panel handle Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. valve cover top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 76 Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. panel 3. Remove right side plate and left side plate right side plate Remove the scre ws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy .
  • Page 77 4. Remove fan motor and axial flow blade axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. fan motor fixing frame Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor.
  • Page 78 4-way valv e assy 6.Remove soundproof sponge and Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully 4-way valv e assy Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy,and then remove the 4-way valve assy.
  • Page 79 8. Remov e Cut off Valve and Valve Support Remove the 2 bolts fixing the valve subassemblies. Unsolder the welding joint connecting the gas valve and the return air pipe. Remove the gas valve. (Note: When unsoldering the soldering joint, wrap the gas valve with wet cloth completely to avoid damage to the valve caused by high temperature.) Unsolder the welding joint connecting the liquid valve...
  • Page 80 condenser sub-assy 11.Remove condenser sub-assy Remove the chassis sub-assy and condenser sub-assy. chassis sub-assy...
  • Page 82 Pipe Pipe cutter Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Expander Pipe Smooth surface Improper expanding damaged leaning crack uneven surface thickness The length is equal...

This manual is also suitable for:

C2vo-18B2vo-18B2vi-18