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GE PRO AIR 107 Service Manual

Split system air conditioner
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GE Consumer & Industrial Appliances
Service Manual & Installation Manual
Split System Air Conditioner
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Model numbers
PRO AIR 107
PRO AIR 109
PRO AIR 112
PRO AIR I109
PRO AIR I112
PRO AIR 218
GE AIR 326
GE AIR 428

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Summary of Contents for GE PRO AIR 107

  • Page 1 GE Consumer & Industrial Appliances Service Manual & Installation Manual Split System Air Conditioner Model numbers PRO AIR 107 PRO AIR 109 PRO AIR 112 PRO AIR I109 PRO AIR I112 PRO AIR 218 GE AIR 326 GE AIR 428...
  • Page 2: Summary And Features

    Summary and features Model Remark PRO AIR 107 IN / PRO AIR 107 OUT 1Ph 230V 50Hz R410A —1—...
  • Page 3 Model Remark PRO AIR 109 IN / PRO AIR 109 OUT PRO AIR 112 IN / PRO AIR 112 OUT 1Ph 230V 50Hz R410A PRO AIR I109 IN / PRO AIR I109 OUT PRO AIR I112 IN / PRO AIR I112 OUT —2—...
  • Page 4 Model Remark PRO AIR 218 IN / PRO AIR 218 OUT 1Ph 230V 50Hz R410A —3—...
  • Page 5 Model Remark GE AIR 326 IN1 / GE AIR 326 IN2 / GE AIR 326 OUT 1Ph 230V 50Hz R407C —4—...
  • Page 6 Model Remark GE AIR 428 IN / GE AIR 428 OUT 1Ph 230V 50Hz R407C —5—...
  • Page 7 Technical and specifications Model PRO AIR 107 IN / PRO AIR 107 OUT PRO AIR 109 IN / PRO AIR 109 OUT Function Cooling Heating Cooling Heating Rated voltage 230V Rated frequency 50Hz Capacity 2000 2200 2500 2600 Nominal power Max.
  • Page 8 Model PRO AIR 107 IN / PRO AIR 107 OUT PRO AIR 109 IN / PRO AIR 109 OUT Compressor type GK080PAD C-1RV096H1A Compressor type Rotary type Locked rotor current Compressor running current Compressor input power Compressor overload model M RA12009-12026...
  • Page 9 Model PRO AIR 112 IN PRO AIR I109 IN Function Cooling Heating Cooling Heating Rated voltage 230V Rated frequency 50Hz Capacity 3200 3400 2500 2700 Nominal power 1060 1220 Max. power 1390 1370 1246 1297 Greatest currency Air flow (m3/h) Dry capacity (L/h) C.O.P/EER...
  • Page 10 Model PRO AIR 112 OUT PRO AIR 109 OUT Compressor type C-RV133H1A EU1011DV Compressor type Rotary type Locked rotor current 33.5 Compressor running current 5.25 Compressor input power 1125 Compressor overload model B210-145-241E 4CYC11233 Throttling method Capillary Starting mode Capacitor Working temperature range -7~43℃...
  • Page 11 Model PRO AIR I112 IN PRO AIR 218 IN Function Cooling Heating Cooling Heating Rated voltage 230V Rated frequency 50Hz Capacity 3200 3400 2500×2 2800×2 Nominal power 1000 1100 830×2 900×2 Max. power 1361 1383 1120×2 1100×2 Greatest currency 5.9×2 5.4×2 Air flow (m3/h)
  • Page 12 Model PRO AIR I112 OUT PRO AIR 218 OUT Compressor type EU1011DV 5PS108EAA22 Compressor type Rotary type Locked rotor current 33.5 Compressor running current 4.05 Compressor input power Compressor overload model 4CYC11233 7100819 (KA-122-LPD021A) Throttling method Capillary Starting mode Capacitor Working temperature range -7~43℃...
  • Page 13 GE AIR 326 IN1 / GE AIR 326 IN2 / GE Model GE AIR 428 IN / GE AIR 428 OUT AIR 326 OUT Function Cooling Cooling Rated voltage 230V Rated frequency 50Hz Capacity 6800 (3200+1800×2) 7200 (1800X4) Nominal power 6800 (3200+1800×2)
  • Page 14 GE AIR 326 IN1 / GE AIR 326 IN2 / Model GE AIR 428 IN / GE AIR 428 OUT GE AIR 326 OUT Compressor type C-RV237H01AA C-RV237H01AA Compressor type Rotary type Locked rotor current Compressor running current Compressor input power...
  • Page 15: Part Name

    Part name Part name of one driving one unit Air in Indoor unit Panel Air out Air guide board Power plug Remote controller Drainage pipe Air in Outdoor unit Connecting pipe and connecting wire Air outlet vent grill Air out —14—...
  • Page 16 Part name of one driving two unit Air in Indoor unit A Wrapping tape Air out Indoor unit B Panel Air guide board Remote controller Drainage pipe Outdoor unit Air in Air outlet vent grill Air out —15—...
  • Page 17 Part name of one driving three unit Air in Indoor unit Panel Air out Air guide board Power plug Remote controller Drainage pipe Air in Connecting pipe and Outdoor unit connecting wire Air outlet vent grill Air out —16—...
  • Page 18 Part name of one driving four unit Air in Indoor unit Panel Air out Air guide board Power plug Remote controller Drainage pipe Air in Connecting Outdoor unit pipe and connecting wire Air outlet vent grill Air out —17—...
  • Page 19 Outline and installation dimensions Outline and installation dimensions of indoor unit Air inlet vent Left pipe outlet Right pipe outlet Rear view Ceiling Left side Right side Installation dimensions —18—...
  • Page 20 Outline and installation dimensions of indoor unit 20 Handle > 60cm Bolt Spanner —19—...
  • Page 21 Outline and installation dimensions of indoor units 25, 32 Handle Unit: mm > 500 Bolt Spanner —20—...
  • Page 22 Outline and installation dimensions of one driving two outdoor unit Unit: mm 500 and above Bolt Spanner —21—...
  • Page 23 Outline and installation dimensions of one driving three outdoor unit More than 50cm More than 30cm Bolt More than 200cm Spanner —22—...
  • Page 24 Outline and installation dimensions of one driving four outdoor unit More than 50cm More than 30cm Bolt More than 200cm Spanner —23—...
  • Page 25: System Diagram

    System diagram Cool only system circuit diagram Capillary Filter Evaporator Cross flow fan Axial flow fan Condenser Gas liquid separator Compressor When the power is on, indoor and outdoor units will start to run. The compressor sucks low-pressure refrigerant gas from the evaporator of indoor unit and then discharges high-temperature, high-pressure refrigerant gas into outdoor condenser.
  • Page 26: Circuit Diagram

    Circuit diagram PRO AIR 107 IN / PRO AIR 107 OUT; PRO AIR 109 IN / PRO AIR 109 OUT; PRO AIR 112 IN / PRO PRO AIR I109 IN / PRO AIR I109 OUT; PRO AIR I112 IN / PRO AIR I112 OUT...
  • Page 27 PRO AIR 218 IN / PRO AIR 218 OUT GE AIR 326 IN1 / GE AIR 326 IN2 / GE AIR 326 OUT Circuit diagram is same as above. Circuit diagram is same as above. —26—...
  • Page 28 GE AIR 428 IN / GE AIR 428 OUT Circuit diagram is same as above. Circuit diagram is same as above. Circuit diagram is same as above. These circuit diagrams are subject to change without notice. Please refer to the one supplied with the unit.
  • Page 29 Function manual and operation method of remote controller PRO AIR I112 IN / PRO AIR I112 OUT, suitable for frequency converter Function manual of remote controller 7.1.1 Temperature parameter Room set temperature: (T Room ambient temperature: (T 7.1.2 Basic function of system No matter what mode the compressor is in, the minimum time interval between two startups should be 3 minutes after it is powered on.
  • Page 30 If T -2℃≤T ≤T , the unit will keep on running in the original mode. If T ≤T -2℃, the compressor will stop. The external fan will stop after a delay of 30s, and the indoor fan will run at a low speed. In this mode, the reversal valve will not be powered on and the temperature setting range is 16 ~30 ℃...
  • Page 31 valve will stop running after a delay of 30s. The defrosting will start 15s later. After the compressor runs for 7 min or when the defrosting is finished, the compressor will stop, and 30s later the four-way valve will run. 30s later, the compressor and outdoor fan resume to operation and indoor fan will run after a delay of 3min.
  • Page 32 7.1.3.5 Auto button The system will be stopped if the button is pressed down when the remote controller is powered on, with the system being operated by remote controller. If the remote controller is powered off, pressing the button will enter auto run mode and the swing will be turned on. The system will be running in accordance with the remote controller if there is remote control command.
  • Page 33 7.1.3.9 Power supply of outdoor unit The power supply for outdoor unit is turned on in AUTO, COOL, HEAT and DRY mode under turn-on state. The power supply for outdoor unit will delay 3 minutes to turn off under turn-off state or in the FAN mode under turn-on state.
  • Page 34 Suitable to systems except for PRO AIR I109 IN / PRO AIR I109 OUT PRO AIR I112 IN / PRO AIR I112 OUT frequency converter Function manual of remote controller 7.2.1 Temperature parameter Room set temperature: (T Room ambient temperature (T 7.2.2 Basic function of the system No matter what mode the compressor is in, the minimum time interval between two startups should be 3 minutes after it is powered on.
  • Page 35 If T -2℃≤T ≤T +2℃, the drying mode will act. In this case, the indoor fan will run at low speed. The compressor and the outdoor fan will stop 6min later. The indoor fan will stop 30s later. The compressor and the outdoor fan will run 3.5 min later and the indoor fan will run at low speed.
  • Page 36 The indoor fan will run after a delay of 3min and the compressor keeps on the running mode. In this case, the run indicator stops blinking. The defrosting time is 10 min for the first time power on and the defrosting time afterwards depends on the practical frost condition, the more the frost, the longer the defrosting time (Max.
  • Page 37 7.2.3.2 Swing motor control 7.2.3.3 Timer function 7.2.3.3.1 Timer ON When TIMER ON is set, the system will be set under TIMER ON mode. When it's time to turn on, the controller will run in the set mode. Time interval is 0 hour and the setting range is from 0.5 to 24 hours. 7.2.3.3.2 Timer off TIMER OFF can be set under running state.
  • Page 38 Names and functions of each part of the remote controller Note: Be sure that there are no obstructions Swing button Press the button once, Swing button and the air speed changes The guide louver will swing in the order of at a certain angle each time the swing button is pressed will...
  • Page 39 Names and function of wireless remote controller (After cover is opened) Note: This type of wireless remote control is a kind of new current control. Some buttons of the control not available to this air conditioner will not be described below. Liquid crystal display It shows all the setting contents.
  • Page 40 Battery installation for the remote controller Guide to operational controls General steps: Plug to power supply and press ON/OFF button to start the unit. 2. Press MODE button to select the suitable operation mode. 3. Press the SWING button to make the swing blades swing at a certain angle. Press the button once again to stop the swing 4.
  • Page 41: Disassembly Procedures

    Disassembly procedures Disassembly procedures for indoor unit Operation procedures/pictures Disassembling panel Push the panel with hand and release the movable latch on the panel, and then lift it upward to take out the panel. Latch Panel As shown in Fig.8-1 Fig.8-1 Disassembling filter screen and wire clamp...
  • Page 42 Operation procedures/pictures Disassembling panel body Open the three taping screws fixing the panel body with a screw driver. Pull upward the panel body and then lift it backward to take out the panel body. As shown in Fig.8-4 Screw Panel body Screw Cover Fig.8-4 Disassemble electric box cover Press down the latches around the cover of...
  • Page 43 Operation procedures/pictures Disassembling the electric box Firstly screw off 2 screws at the indicator board and disassemble the indicator board. Then, pull away the terminals of motor. Screw off grounding screw and 2 screws fixing the electric box with a Screw screw driver.
  • Page 44 Operation procedures/pictures Screw Fig.8-10 Screw Clamp Fig.8-11 Disassembling the motor Firstly use a screwdriver to unscrew the 2 screws in the board choking of motor, pop up the clasp as shown in the figure, and remove the board choking of the motor as shown in Fig.8-12.
  • Page 45 Operation procedures/pictures And then unscrew the set screw for fixing the motor, lift it up backward, and remove the motor as shown in Fig.8-13 Taping screw Motor Fig.8-13 Remove cross flow fan After taking out the motor, take out the ring Cross flow fan of bearing on the left end of the fan to take off the cross flow fan as shown in Fig.8-14.
  • Page 46 Disassembling procedure of outdoor unit 20 Operation procedures/pictures Disassembling top cover and handle Screw off one fixing screw that fixes the handle Top cover Handle with screwdriver to take out the handle. Screw off 3 screws around the top cover to remove Screw the top cover as shown in Fig.8-15.
  • Page 47 Operation procedures/pictures Disassembling the electric box Screw off 3 screws of the electric box with a screw driver to remove the electric box as shown in Fig.8-18. Screw Fig.8-18 Disassembling right sideboard Screw off 5 screws at the right sideboard with a screw driver to remove the right sideboard as shown in Fig.8-19.
  • Page 48 Operation procedures/pictures Disassembling the motor and motor support With a screw driver, screw off the screw fixing the motor and motor frame to remove the motor Motor and motor frame as shown in Fig.8-21. Motor bracket Screw Fig. 8-21 Disassembling capillary assembly Weld off the welding spots between the Capillary...
  • Page 49 Operation procedures/pictures Disassembling compressor Weld off two ends of compressor and screw off 3 base screws with a spanner to remove the compressor as shown in Fig.8-24. Welded point Base screw Fig.8-24 —48—...
  • Page 50 Disassembly procedures for outdoor unit 25, 32 Suitable for PRO AIR 109 IN / PRO AIR 109 OUT, PRO AIR 112 IN / PRO AIR 112 OUT Operation procedures/pictures Disassembling the top cover Screw off the one piece of fixing screw that fixes the handle with screwdriver and push down with strength to take out the handle.
  • Page 51 Operation procedures/pictures Dismount the electric mounting board Screw off the 3 screws fixing the electric device installation board, and pull out the inserting contacts for leads of compressor and fan motor, and remove the electric device installation board as shown in Fig.8-28. Electric installation board Screw Fig.8-28...
  • Page 52 Operation procedures/pictures Disassembling the motor and motor support Motor bracket SCREW off 4 tapping screws that fix the motor to take out the motor. Unscrew 2 tapping screws for Taping screw fixing the motor bracket, pull it upward, and take out the motor bracket as shown in Fig.8-31.
  • Page 53 Operation procedures/pictures Disassemblling big and small valves Screw off 2bolts that fix the big valve, weld off Small valve gate the welding point between the big valve and the air return pipe to take down the big valve. (Note: when welding off the welding spots, Big valve gate wrap the big valve with wet cloth completely to avoid high-temperature from damaging the...
  • Page 54 Disassembling procedures for outdoor unit Suitable for PRO AIR I109 IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT Operation procedures/pictures Disassemble the top cover Screw off the one piece of fixing screw that fixes the handle with screwdriver and push down with strength to take out the handle.
  • Page 55 Operation procedures/pictures Disassembling right sideboard Unscrew the 7 screws that fix the right sideboard to take out the right sideboard as shown in Fig.8-39. Screw Fig. 8-39 Disassembling reactor box and electric box assembly Screw off the 2 screws that fix the electric box cover to remove the cover of electric box.
  • Page 56 Operation procedures/pictures Screw Electric box Fig. 8-42. Disassembling axial flow fan Unloose the fixing nut that fixes the axial flow fan with spanner and take out the nut, spring Axial flow fan gasket and flap gasket in sequence as shown in Fig.
  • Page 57 Operation procedures/pictures Disassembling four-way valve Screw off the fixing nut of the four-way valve Four-way coil and remove the coil. Wrap the four-way valve valve with wet sponge and weld off the four Four-way weld joints on the four-way valve to take off valve coil the four-way valve (Remarks: it is required to discharge...
  • Page 58 Operation procedures/pictures Disassembling compressor Unloose the 3 pieces of bottom nuts of the compressor, weld suction discharge pipe and remove the pipeline carefully to take out the compressor as shown Compressor in Fig. 8-48. Bottom nut Fig. 8-48 —57—...
  • Page 59 Disassembly procedures for outdoor unit (one driving two) Operation procedures/pictures Disassembling the front sideboard Screw off 4 fixing screws fastening the front sideboard to disassemble the front sideboard as shown in Fig. 8-49. Screw Front sideboard Fig. 8-49 Disassemble the top cover board Top cover board Screw off the screws that fix around the top Screw...
  • Page 60 Operation procedures/pictures Disassembling the cabinet assembly Screw off the 8 tapping screws on the cabinet, chassis and condenser sideboard to take off the cabinet assembly as shown in Fig. 8-52. Screw outer cover Fig. 8-52. Disassembling the electric box Screw Screw off the 2 screws that fix the electric installation board and unplug the lead wire insert of compressor, fan motor and four-way...
  • Page 61 Operation procedures/pictures Disassembling axial flow fan Screw off the fixing nut of axial flow fan with a spanner to pull outward the axial flow fan as Axial flow fan shown in Fig. 8-55. fixing nut Fig. 8-55 Disassembling the motor and motor support Screw off the motor fixing bolt on the motor bracket pull out the motor backwards.
  • Page 62 Operation procedures/pictures Disassembling Capillary Wrap the capillary with wet sponge and weld off its weld joints with other pipeline. The welding process should be performed as quickly as possible, ensure that the wrapped spun cotton should be moistened all along; ensure that the leading of compressor must Capillary not be burnt out by flame.
  • Page 63 Disassembling procedures for outdoor unit (one driving two) Operation procedures/pictures Disassembling the front sideboard Screw off the 4 pieces of fixing screws of the front sideboard and pull the handle upward to take off the front sideboard as shown in Fig. 8-61.
  • Page 64 Operation procedures/pictures Screw Disassembling the cabinet assembly Screw off the 8 tapping screws on the cabinet, chassis and condenser sideboard to take off the cabinet assembly as shown in Fig. 8-64. Cabinet assembly Fig. 8-64 Disassembling the electric box Screw off the screws fixing the electric device installation board, and pull out the inserting contacts for leads of compressor and fan motor,...
  • Page 65 Operation procedures/pictures Axial flow fan Disassembling axial flow fan Fixing nut Screw off the tapping screws on the cabinet, chassis and condenser sideboard to take off the cabinet assembly as shown in Fig. 8-68. Lock washer of external gear Fig. 8-68 Disassembling the motor and motor support Screw off the motor fixing bolt on the motor bracket, pull out the motor backwards.
  • Page 66 Operation procedures/pictures Disassembling the compressor Air discharge pipe Release the 3 washer nuts at the legs of compressors (2 sets)(Remarks: it is required to completely discharge freon). Weld off the welding spots on suction /exhaust piping of Compressor compressor, take away pipeline with care, and (2 pieces) take out the compressor as shown in Fig.
  • Page 67 Disassembling procedures for outdoor unit (one driving four) Operation procedures/pictures Disassembling the front sideboard Screw off the 4 pieces of fixing screws of the front sideboard and pull the handle upward to take off the front sideboard as shown in Fig. 8-72.
  • Page 68 Operation procedures/pictures Disassembling the cabinet assembly Screw off the 8 tapping screws on the cabinet, chassis and condenser sideboard to take off the cabinet assembly as shown in Fig. 8-75. Cabinet assembly Fig. 8-75 Disassembling the electric box Screw off the screws fixing the electric device installation board, and pull out the inserting contacts for leads of compressor and fan motor,...
  • Page 69 Operation procedures/pictures Axial flow fan Disassembling axial flow fan Fixing nut Screw off the tapping screws on the cabinet, chassis and condenser sideboard to take off the cabinet assembly as shown in Fig. 8-79. Lock washer of external gear Fig. 8-79 Disassembling the motor and motor support Screw off the motor fixing bolt on the motor Motor fixing bolt...
  • Page 70 Operation procedures/pictures Disassembling the compressor discharge Release the 3 washer nuts at the legs of pipe compressors (2 sets)(Remarks: it is required to completely discharge freon). Weld off the Compressor welding spots on suction /exhaust piping of (2 pieces) compressor, take away pipeline with care, and take out the compressor as shown in Fig.
  • Page 71 Explosive view and parts list Explosive view of parts and components of indoor unit —70—...
  • Page 72 Explosive view of parts of outdoor unit Code No. of parts Qty. Name of parts PRO AIR 107 IN PRO AIR 109 IN PRO AIR 112 IN Hanging board 01252220 01252220 01252220 Bottom case 22202447 22202447 22202447 Water chute, evaporator...
  • Page 73 Code No. of parts Qty. Name of parts PRO AIR I109 IN PRO AIR I112 IN PRO AIR 218 IN Hanging board 01252220 01252220 01252220 Bottom case 22202447 22202447 22202447 Water chute, evaporator 06122001 06122001 06122001 Pressure board of connecting pipe 24242001 24242001 24242001...
  • Page 74 Code No. of parts Qty. Name of parts PRO AIR 218 IN PRO AIR 112 IN GE AIR 428 IN Hanging board 01252220 01252220 01252220 Bottom case 22202447 22202447 22202447 Water chute, evaporator 06122001 06122001 06122001 Pressure board of connecting pipe...
  • Page 75 Explosive view of parts and components of outdoor unit —74—...
  • Page 76 Explosive view of parts of outdoor unit Code No. of parts Qty. Name of parts PRO AIR 107 OUT PRO AIR 109 OUT PRO AIR 112 OUT Face cover 22263002 22413431 22413431 Axial flow fan 10333002 10333413 10333413 Panel 20003100...
  • Page 77 Explosive view of parts and components of outdoor unit (frequency converter) —76—...
  • Page 78 List of parts and components of outdoor unit (frequency converter) Code No. of parts Qty. Name of parts PRO AIR I109 OUT PRO AIR I112 OUT Panel 01533005 01533005 separation board 01233381 01233381 reactor box 01413504 01413504 Reactor 143130165 43130165 Chassis assembly 01203015 01203015...
  • Page 79 Explosive view of parts of outdoor unit (one driving two) —78—...
  • Page 80 Explosive view of parts of outdoor unit (one driving two) Code No. of parts Name of parts Qty. PRO AIR 218 OUT Taping screw 70140553 Face cover 22265251 outer cover 01433031 Axial flow fan 10335257 Motor LW68B 15015057 Motor bracket 01703027 Condenser assembly.
  • Page 81 Explosive view of parts of outdoor unit (one driving three) —80—...
  • Page 82 9.10 Explosive view of parts of outdoor unit (one driving three) Code No. of parts Name of parts Qty. GE AIR 326 OUT Power cable 40020318 Face cover 22265251 outer cover 01435254 Motor bracket 01705253 Axial flow fan 10335253 Motor FW60L...
  • Page 83 Explosive view of parts of outdoor unit (one driving four) —82—...
  • Page 84 9.12 List of parts of outdoor unit (one driving four) Qty. Code No. of parts Name of parts GE AIR 428 OUT 40020318 Power cable 22265251 Face cover outer cover 01435254 Motor bracket 01705253 10335253 Axial flow fan 15013063 Motor FW60L...
  • Page 85 Maintenance Warning Turn power off and pull out the power plug before cleaning air conditioner. Or it may cause the electric shock. Never dampen the air conditioner, which may cause electric shock. Never rinse the unit with water. Volatile liquid like thinner or gasoline would damage the appearance of air conditioner (Only adopt soft dry cloth and wet cloth with neutral scour when cleaning air conditioner appearance)
  • Page 86: Installation Guide

    Installation guide Select Install Location Indoor unit The air inlet and outlet vent should be kept far away from obstruction so that air can be blown to the entire room; Select a location where it is easy to drain condensed water and connect to the outdoor unit; Keep away from heat resource, steam and flammable gas;...
  • Page 87 Installing indoor unit Installing the wall-mounting board Use hanging line to find a horizontal position. Since the drainage pipe outlet is on the left side, make the left side on the slightly lower side when adjusting the mounting board. Fix the rear panel on the wall by bolt. Pull the mounting board after installation to see if it is firm enough.
  • Page 88 Electric wiring 1. Open the panel upwardly 2. Disassemble the wire-connection cover board. 3. Pass the Power connecting cord through the entrance hole in the bottom of electric box and bottom case from bottom to top. 4. Connect the blue wire among the Power connecting cords to terminal "N (1) ”on the connecting board, connect the brown wire to the terminal “2”, and connect the yellow green wire (namely ground wire) to the terminal “...
  • Page 89 Installing indoor unit (1) For the piping distribution of indoor unit, please refer to Fig. 11-5 and 11-6. When piping on the left or right side, it is required to cut the tailing portion for piping left on the baseboard of the main unit, as shown in Fig.
  • Page 90 Installing indoor unit Installing the connecting pipe The flare end of the connecting pipe coincides with the flare Torque spanner end connector of the corresponding valve. Tighten the nut on the connecting pipe with strength and then tighten it by spanner (as shown in right figure). Note: Too great torque will damage the nut Tightening torque is given as follows: Hexagon nut(mm)
  • Page 91 Evacuation and leakage check Take down the nut cover on the break valve of the outdoor screwdriver unit. Aim at the center of the pipe and fully screw tight the conical Gas pipe nut by hand. Fluorine injection nozzle Use the spanner to screw tight the conical nut. Take down the valve nuts on the liquid valve and the gas valve and take down the nuts of the freon injection nozzle.
  • Page 92 Trial running and the checking items after installation Preparation for trial running 1 Preparation for trial running Before complete of entire installation, power cannot be turned on. Control circuit should be connected correctly, all wire be connected firmly. Open cut-off valve of both thick and thin pipe. All scattered things, especially scrap and wire etc., should be taken out from the unit.
  • Page 93 Failure analysis Failure analysis of frequency converter series The section is concerning common failure analysis and it can be used for Fengniao DC frrequency converter series. It is adaptable for PRO AIR I109 IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT. Prior to the analysis, it is available to carry out diagonose in accordance with the code indication of outdoor unit or indication of outdoor indicator (for detail, refer to Section 12.2, failure indication).
  • Page 94 Improper setting of temperature Adjust the set temperature Check if cooling (heating) load is proper. Check the forecasted load of cooling (heating). Perform leak detection, perform vacuum pumping after leak was repaired, and The secondary refrigerant has leakage charge adequately amount of refrigerant or is insufficient according to stipulations.
  • Page 95 Abnormal power supply of outdoor unit Check the circuit according to circuit diagram When unit Damage of main control board in outdoor unit Replace the main control board cooling or heating, both compressor and outdoor fan Power module of outdoor unit is damaged. Replace the power module don't run Improper setting of temperature...
  • Page 96 Blockage or breakage of drainage hose Replace the drainage hose Water leakage Wrap of refrigerant pipe connector is not tight Re-wrap and make it tight enough Fan of indoor unit contacts other parts Adjust the fan position There is foreign substance in indoor unit Take out the foreign substance Adjust the supporting pad of the compressor and Compressor shakes too much...
  • Page 97 Failure indication section Compressor is running (this is normal condition (Main board)Yellow indicator flashes 1 time and the display of indoor unit is normal) (Main board)Yellow indicator flashes 2 times Defrost(normal indication of indoor unit) (Main board)Yellow indicator flashes 3 times Anti-freezing protection (display of indoor unit displays is normal) (Main board)Yellow indicator flashes 4 times...
  • Page 98 Analysis or treatment of some of the display failures 1. Compressor discharge protection Possible causes: coolant not sufficient, air filter net is blocked, condenser is of poor ventilation or air flow is shorted, there is non-condensed gas in the system (such as air, water, etc.), capillary assembly (including filter) blockage, inner leakage in the 4-way valve, leading to mistaken action;...
  • Page 99 Confirm if outdoor fan motor is running; unplug the three Outdoor fan connecting wires between U, V, W of compressor and Confirm if there is voltage output and balance of runs. power module. Turn on the unit to see if outdoor fan runs voltage between any two phases of U, V and W.
  • Page 100 Failure analysis of common types of systems Adaptable for systems except PRO AIR I109 IN / PRO AIR I109 OUT, PRO AIR I112 IN / PRO AIR I112 OUT Measure the insulating resistance for When the breaker is set ON, it will trip at grounding to confirm whether there is electrical leakage or short circuit in once...
  • Page 101 —100—...
  • Page 102 Improper setting of temperature Adjust the set temperature Check if cooling (heating) load is Check the forecasted load of cooling (heating). proper. Perform leak detection, perform vacuum pumping after leak was repaired, and The secondary refrigerant has leakage charge adequately amount of refrigerant or is insufficient according to stipulations.
  • Page 103 The indoor fan motor is burned or breaks or has Replace the fan motor or the defective part. the heat protector malfunction. The built in heat protector in the motor is tripped Replace the fan motor off frequently due to overheat as the result of abnormal motor operation.
  • Page 104 Blockage or breakage of drainage hose Replace the drainage hose Water leakage Wrap of refrigerant pipe connector is not Re-wrap and make it tight tight enough Fan of indoor unit contacts other parts Adjust the fan position There is foreign substance in indoor unit Take out the foreign substance Adjust the supporting pad of the compressor and Compressor shakes too much...