Haier GE Connect Series Service Manual
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Haier GE Connect Series Service Manual

Split heat pumps
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Installation
Instructions
Connect Series
Split Heat Pumps
Service Manual
Split Type Heat Pump
READ CAREFULLY.
KEEP THESE INSTRUCTIONS
31-5000483 Rev. 1 05-20 GEA
.
Rev. 08-21

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Summary of Contents for Haier GE Connect Series

  • Page 1 Service Manual Installation Split Type Heat Pump Instructions Connect Series Split Heat Pumps READ CAREFULLY. KEEP THESE INSTRUCTIONS Rev. 08-21 31-5000483 Rev. 1 05-20 GEA...

  • Page 2: Table Of Contents

    Foreword Thank you for choosing GE Appliances Connect Series heat pumps.. Please read this manual carefully in order to properly install the equipment and maximize customer satisfaction. This manual specifies safe operation requirements from perspectives of product introduction, control, troubleshooting and maintenance, as well as basic principles and implementation methods. Professional operators must abide by relevant national (local) safety requirements and technical specifications set forth in this manual during operations;...

  • Page 3: Safety Notifications

    Safety Notifications Maintenance Safety PROHIBITED: • Do not pierce or burn. • Please note that refrigerant may be odorless. • The appliance shall be stored in a room without continuously operating ignition sources (For example: open flames, an operating gas appliance or an operating electric heater). •...
  • Page 4 Safety Notifications Operation Safety PROHIBITED: • Never try to modify the unit, otherwise, it may cause electric shock, overheat or fire hazard. • Replace all wires that have worn or damaged insulation. • This equipment must have a dedicated electrical circuit and service disconnect switch. WARNING: •...

  • Page 5: Introduction

    Introduction Lists of Units Outdoor Units Power Supply Circuit Breaker Capacity Model Appearance V/Ph/Hz AUH2436ZGDA 208/230V-1Ph-60Hz AUH4860ZGDA 208/230V-1Ph-60Hz Indoor Units Circuit Breaker Power Supply Fuse Capacity Cooling/Heating Capacity Model Appearance Capacity (Btu/h) V/Ph/Hz UUY24ZGDAA 24000/24000 208/230V-1Ph-60Hz UUY36ZGDAA 36000/36000 208/230V-1Ph-60Hz UUY48ZGDAA 48000/48000 208/230V-1Ph-60Hz UUY60ZGDAA...

  • Page 6: Specifications

    Introduction UUY(--)ZGDAA Specifications Outdoor Unit AUH2436ZGDA AUH4860ZGDA 0-84691-85465-4 0-84691-85469-2 Capacity Selection Indoor Unit UUY24ZGDAA UUY36ZGDAA UUY48ZGDAA UUY60ZGDAA 0-84691-85716-7 0-84691-85717-4 0-84691-85718-1 0-84691-85719-8 Cooling Capacity Btu/hr. 24,000 36,000 48,000 54,000 SEER Cooling 12.5 10.5 Cooling Operating Range 5~129°F (-15~54°C) 5~129°F (-15~54°C) Heating Capacity Btu/hr. 24,000 36,000 48,000...
  • Page 7 Introduction UUY(--)ZGDAB Specifications Outdoor Unit AUH2436ZGDA AUH4860ZGDA 0-84691-85465-4 0-84691-85469-2 Capacity Selection Indoor Unit UUY24ZGDAB UUY36ZGDAB UUY48ZGDAB UUY60ZGDAB 0-84691-86343-4 0-84691-86344-1 0-84691-86345-8 0-84691-86346-5 Cooling Capacity Btu/hr. 24,000 36,000 48,000 54,000 SEER Cooling 12.5 11.5 10.5 Cooling Operating Range 5~129°F (-15~54°C) 5~129°F (-15~54°C) Heating Capacity Btu/hr.

  • Page 8: Controls

    Controls Operation Modes Cooling Mode Power On Cooling start control Indoor fan run Compressor Satisfying open stop for 3 Compressor minutes condition Compressor Meet the Compressor and outdoor temperature point and outdoor fan run shutdown condition fan stop Meet the oil return condition Meet the oil Oil return separation...
  • Page 9 Controls Heating Mode Power On Heating start control Indoor fan run Compressor Satisfying open stop for 3 Compressor minutes condition Compressor Meet the Compressor and outdoor temperature point and outdoor fan run shutdown condition fan stop Meet the oil return condition Meet the defrost end...

  • Page 10: Control Modes

    Controls Control Modes Based Control Compressor Control When the unit comes on in heating or cooling mode; the indoor fan will run for a short time before the compressor starts. Under different modes, the compressor can only be stopped after running for some time (special cases excluded).

  • Page 11: Functions

    Controls Low Pressure Protection Control The system will shut the compressor down if the low pressure switch opens for a short time and display an E3 error code. The system will automatically restart the compressor when the switch closes after a short time delay.
  • Page 12 Controls Set Operating Mode DIP switches SA2-3 & SA2-4 on the outdoor unit main control board select the operating mode. The following example shows the 36K outdoor unit. Standard Mode is the default mode. The heat pump can easily be set to increase the output capacity by adjusting the DIP switches to Strong Mode.
  • Page 13 Controls UUY24ZGDAB UUY36ZGDAB UUY48ZGDAB UUY60ZGDAB HEAT (Indoor DIP SA2) COOL (Indoor DIP SA1) HEAT (Indoor DIP SA2) COOL (Indoor DIP SA1) Level 1 Level 2 (default) Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Indicates switch position CONNECT SERIES SERVICE MANUAL...
  • Page 14 Controls Blower Performance Tables Static Pressure: Model 0.15 Inches W.C. Speed 1-CFM (L) 1050 UUY24ZGDAA Speed 2-CFM (M) 1200 1070 1010 Speed 3-CFM (H) 1280 1180 1130 1080 Speed 1-CFM (L) 1230 1100 1000 UUY36ZGDAA Speed 2-CFM (M) 1315 1230 1190 1145 1050...
  • Page 15 Controls Forced Defrost Control Press and hold the SW1 button for about 5 seconds to enter the first menu level. The outdoor unit main board display will flash. Short-press the SW1 button to switch the function to “06”. Short-press SW2 or SW3 to change the selection within function “06”...

  • Page 16: Troubleshooting

    Troubleshooting Wiring Diagrams The following electric diagram is for reference only. Please refer to diagram attached to the unit as the latest version. Outdoor Units Model: AUH2436ZGDA CONNECT SERIES SERVICE MANUAL...
  • Page 17 Troubleshooting Model: AUH4860ZGDA CONNECT SERIES SERVICE MANUAL...
  • Page 18 Troubleshooting Indoor Units The following electric diagram is for reference only. Please refer to diagram attached to the unit as the latest version. Model: UUY24ZGDAA, UUY36ZGDAA Model: UUY48ZGDAA, UUY60ZGDAA CONNECT SERIES SERVICE MANUAL...
  • Page 19 Troubleshooting Model: UUY24ZGDAB, UUY36ZGDAB Model: UUY48ZGDAB, UUY60ZGDAB CONNECT SERIES SERVICE MANUAL...

  • Page 20: Pcb Layout

    Troubleshooting PCB Layout Interface Indoor Unit: Model: UUY24ZGDAA, UUY36ZGDAA, UUY48ZGDAA, UUY60ZGDAA Main Board Printing Interface Printing Interface AC-N (X2) Neutral wire input X9 (G_SCAN) Indoor motor check AC motor high speed AC-L (X1) Live wire input X14 (OFAN-H-OUT) output Wired control X11 (OFAN-H-IN) AC motor high speed input communication interface...
  • Page 21 Troubleshooting Motor Board Printing Interface Printing Interface DC-MOTOR1 DC motor output COM2 DC motor control signal input CONNECT SERIES SERVICE MANUAL...
  • Page 22 Troubleshooting Indoor Unit Models: UUY24ZGDAB, UUY36ZGDAB, UUY48ZGDAB, UUY60ZGDAB Main Board Printing Interface Printing Interface Transformer Neutral wire AC-N (X2) Neutral wire input X3 (C) output 1. Electrical heat check AC-L (X1) Live wire input 3. Defrosting check Wired control X9 (G_SCAN) Indoor motor check communication interface Tube temperature sensor...
  • Page 23 Troubleshooting Outdoor Unit: Model: AUH2436ZGDA, AUH4860ZGDA Main Board Printing Interface Printing Interface AC-L Live wire input H-PRESS High pressure sensor interface AC-N Neutral wire input System low pressure protection interface HEAT_TIE_B Chassis electric heating belt System high pressure protection interface 2.
  • Page 24 Troubleshooting Drive Board Model: AUH2436ZGDA 1 1 3 3 1 1 0 0 ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ 1 1 1 1 ⑩ ⑩ 1 1 2 2 ⑩ ⑩ 1 1 7 7 ⑩ ⑩ 1 1 5 5 1 1 6 6 1 1 4 4...
  • Page 25 Troubleshooting Model: AUH4860ZGDA Printing Interface Printing Interface L2-2 PFC induction wire (blue) L1-2 PFC induction wire (white) AC-L Live wire Compressor U phase terminal L1-1 PFC induction wire (brown) Compressor V phase terminal Neutral wire Compressor W phase terminal JTAG1 Programming interface (for testing) Drive power supply terminal Communication terminal, same with...
  • Page 26 Troubleshooting Filtering Board Model: AUH2436ZGDA ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ ⑩ Printing Interface Printing Interface ⑩ ⑩ AC-L Power input live wire terminal N-OUT Power output neutral wire terminal (reserved) AC-N Power input neutral wire terminal N-OUT...
  • Page 27 Troubleshooting IPM, PFC Testing Method Method of Testing IPM Module • Turn off power to the outdoor unit for at least one minute. Set a multi meter to diode test function. Remove the U, V and W wires from the compressor. Testing Steps 1.
  • Page 28 Troubleshooting AUH4860ZGDAA CONNECT SERIES SERVICE MANUAL...

  • Page 29: Indoor Unit Led Indicators

    Troubleshooting Indoor Unit LED Indicators (UUY(--)ZGDAB Only) There are LED indicators on the main boar d of the indoor unit, which are used to display the operating status and malfunction information of the unit. LED indicator Color Function Power Indicator Indoor unit main board is powered on, Power Indicator is on.

  • Page 30: Troubleshooting

    Troubleshooting Troubleshooting Start “E1” Compressor High Pressure Protection E1 protection Error display: ODU main board LED display Error judgment condition Check if the system high and method: pressure is higher than 667psi It is judged through the action Yes No of high pressure switch.
  • Page 31 Troubleshooting Start “E3” Compressor Low- Pressure Protection, Refrigerant Undercharge E3 protection Protection, Refrigerant Recovery Mode Error display: Check if the system low pressure is lower than 7psi ODU main board LED display Error judgment condition and method: It is judged through the action of low pressure switch.
  • Page 32 Troubleshooting Start “E4” Compressor Air Discharge High- Temperature Protection E4 Compressor Error display: air discharge high temperature protection ODU main board LED display Error judgment condition and method: Confirm the specific Test the compressor discharge outdoor unit protection temperature through compressor module and compressor discharge pipe and compressor shell top temperature sensor.
  • Page 33 Troubleshooting Start “F2” Condenser Temperature Sensor Error Malfunction of outdoor coil Error display: temperature sensor ODU main board LED display Error judgment condition and method: Check if the condenser Sample the AD value of temperature sensor through temperature sensor on main temperature sensor detecting circuit and judge the board is inserted on the range of AD value, If the sampling AD value exceeds...
  • Page 34 Troubleshooting Start “F4” Discharge Temperature Sensor Error Malfunction of discharge Error display: temperature sensor ODU main board LED display Error judgment condition and method: Check if the discharge temperature sensor on main Sample the AD value of temperature sensor through board is inserted on the temperature sensor detecting circuit and judge the socket correctly...
  • Page 35 Troubleshooting Start “EE” ODU Memory Chip Error Malfunction of ODU memory Error display: chip error ODU main board LED display Error judgment condition and method: Replace the outdoor main If ODU main board cannot read the memory chip, this board error will be reported.
  • Page 36 Troubleshooting Start “H5” IPM Protection H5 IPM protection Error display: ODU main board LED display Compressor 3-phase wire connection is Error judgment condition and method: phase reversed or has open phase. Drive processor supply voltage is low. IPM module malfunction. System will shut down. Possible causes: Connect wires System is heavy loaded?
  • Page 37 Troubleshooting Start “H7” Driver Out-of-Step Protection Error display: H7 Compressor out-of-step protection ODU main board LED display Compressor 3-phase wire connection is Error judgment condition and method: lack of phase or phased-reversing? The processor cannot detect the compressor rotor position. The running speed is different that the speed called for.
  • Page 38 Troubleshooting Start “Lc” Startup Failure LC Startup failure Error display: ODU main board LED display System is blocked? Error judgment condition and method: Check the error code on 7 segment LED display of ODU main control board. Inverter compressor startup failure is indicated by a PJ on the display.
  • Page 39 Troubleshooting Start “P5” Over-Current Protection PS Compressor over-current protection Error display: ODU main board LED display Compressor is running at high frequency Error judgment condition and method: and high load. The peak currant has reached the protection value? If compressor’s instant current value is higher than the set current protection value.
  • Page 40 Troubleshooting “P7” Driver Module Sensor Error Start Error display: ODU main board LED display P7 Driver module sensor error Error judgment condition and method: If IPM or PFC module temperature is lower than the set protection value, then it can be judged that driver Replace the drive board module sensor error occurs and system will shut down for protection.
  • Page 41 Troubleshooting Start “PA” AC Current Protection Error display: PA AC current protection ODU main board LED display Error judgment condition and method: Grid voltage is normal or not ? If input current value exceeds the set protection value, then it can be judged that AC current protection occurs and system will shut down for protection.
  • Page 42 Troubleshooting “PH” Bus High-Voltage Protection Start Error display: PH Bus low-voltage protection ODU main board LED display Error judgment condition and method: Grid voltage is normal or not? If there is no other malfunction and the busbar voltage is higher than the set value for high voltage protection, then it can be judged that bus high-voltage protection occurs.
  • Page 43 Troubleshooting Start “e1” High Pressure Sensor Error High pressure sensor error Error display: ODU main board LED display Check if the high pressure sensor Error judgment condition and method: on main board is inserted on the socket correctly Sample the AD value of pressure sensor through pressure sensor detecting circuit and judge the range of AD value, If the sampling AD value exceeds upper limit and lower limit in 30 seconds continuously, report the...

  • Page 44: Failures Not Caused By Errors

    Troubleshooting Failures Not Caused by Errors If your heat pump fails to function normally, please first check the following items before contacting service: Problem Cause Corrective measure The compressor is protected by a 3 Please wait for time delay protection. minute time-delay.

  • Page 45: Maintenance

    Maintenance System Diagram System Evacuation • Make sure the outlet of vacuum pump is away from fire source and is well-ventilated. NOTICE: • Before evacuating, make sure the unit cut-off valves are closed. • When evacuating, both the liquid pipe and the gas pipe must be evacuated. 1.

  • Page 46: Refrigerant Charging

    Maintenance 7. Slightly open the liquid valve and let some refrigerant go to the connection pipe to balance the pressure inside and outside of the connection pipe, so that air will not come into the connection pipe when removing the hose. Notice that the gas and liquid valve can be opened fully only after the manifold valve assembly is removed.

  • Page 47: Maintenance Of Major Components

    Maintenance 5. Open the high pressure gauge valve (Keep the low pressure gauge valve closed). Then charge refrigerant into the system. 6. Add the required amount of refrigerant calculated and close off the manifold gauge when complete. 7. If you can’t continue to charge refrigerant into the system and the quantity of charged refrigerant is less than the required charging quantity, then restart the system and add the remainder of the required refrigerant into the vapor line while the system is running.
  • Page 48 Maintenance How to Replace the Compressor Diagnosis of Compressor Failure: On Condition that the Unit CAN be Started Up 1. Start the unit if it will run and check the current of the faulted compressor. Use manifold gauges to measure the discharge and suction pressures at the service valves. Refer to the following table based on the recommended working current.
  • Page 49 Maintenance Labels on the 4-way valve: D-connect to the discharge side; E-connect to the evaporator of indoor unit; S-connect to the suction side of the liquid separator; C-connect to the outdoor coil. When the system is in cooling mode, C-the pipeline is with high pressure and high temperature;...
  • Page 50 Maintenance Replacement of Compressor 1. Preparation A. Prepare the components for replacement: • Do not carry the compressors horizontally or upside down when carrying the compressors. Make sure the lubricant inside the compressor doesn’t pour out from the oil refrigerant ports. The suction and discharge openings of the compressor must be sealed.
  • Page 51 Maintenance 5. Detach the compressor • Check the condition of the damaged compressor, including its position and model. • If the information of the compressor is confirmed, check the oil quality. • I. If the oil is clear and impurities-free, we consider that the oil of the system is not polluted. Meanwhile, if we confirm that the valves and pipes are also normal, then we can replace the compressor only.
  • Page 52 Maintenance 7. Clear the pipeline • After confirming which parts of the system should be replaced, check the pipeline of the system. Blow through the main pipeline with nitrogen. After clearing the pipeline, if the components are not replaced immediately, seal the pipeline with adhesive tape to prevent the system from being contaminated by moisture and impurities in the air.
  • Page 53 Maintenance How to Replace the Compressor Drive Module 1. First, make sure that power is off. Use a multi meter to measure the voltage between L1, L2, L3, and N. to be sure the voltage is isolated. Tag the breaker to indicate that the equipment is under repair. 2.

  • Page 54: Removal Of Major Components

    Maintenance Removal of Major Components Removal of ODU Major Components Picture Name Function Through compression, the low pressure refrigerant becomes pressurized. As its pressure and temperature both rise, it Compressor becomes high pressure and high temperature refrigerant. It is the power drive of the system.
  • Page 55 Maintenance Picture Name Function Accumulator Flash refrigerant from liquid to gas It is used to transfer partial heat of the hot flow to the cold flow Outdoor coil so that the flow temperature can reach the specified index. It is an energy exchanging device.
  • Page 56 Maintenance Model: AUH2436ZGDA Front Panel Removal Note: Be sure power is off before removing front panel. Step Picture Work instruction 1. Remove the upper cover Unscrew the screws of the upper cover plate. plate with a screwdriver. Unscrew the screws of the upper and 2.
  • Page 57 Maintenance Front Panel Removal Note: Be sure power is off before removing front panel. Step Picture Work instruction Unscrew the screws that connect the 5. Remove the right side plate. right side plate to the electric box and the screws around the right side plate. Screw up the screws around the right side plate.
  • Page 58 Maintenance Front Panel Removal Note: Be sure power is off before removing front panel. Step Picture Work instruction Fix the clasps on both sides of the plate 9. Install the front side plate. and tighten up the screws. Tighten up the screws around the upper 10.
  • Page 59 Maintenance Model: AUH2436ZGDA Compressor/Gas Liquid Separator Removal Note: Make sure all refrigerant is recovered and power is isolated before removing compressor and gas liquid separator. Step Picture Work instruction Loosen the securing screws of the wires with a screwdriver. Remove the wires. 1.
  • Page 60 Maintenance Compressor/Gas Liquid Separator Removal Note: Make sure all refrigerant is recovered and power is isolated before removing compressor and gas liquid separator. Step Picture Work instruction 5. Install the new compressor/ After replacing the compressor/gas gas liquid separator onto the liquid separator, tighten up the base chassis.
  • Page 61 Maintenance Model: AUH2436ZGDA 4-Way Valve Removal Note: Make sure refrigerant is fully recovered and power is isolated before removing the 4-way valve. Step Picture Work instruction 1. Remove the solenoid coil from Carefully unscrew the screws of the 4-way valve electromagnetic coil with a screwdriver.
  • Page 62 Maintenance Model: AUH2436ZGDA Fan and Motor Removal Note: Be sure to isolate power before removing the fan. Step Picture Work instruction Use a screwdriver to unscrew the two 1. Remove the grill. screws on the upper left and lower right corners. Use a wrench to remove the specialized nut and gasket of the fan.
  • Page 63 Maintenance Fan and Motor Removal Note: Be sure to isolate power before removing the fan. Step Picture Work instruction Install the fan in place. Put on the gasket and use a wrench to secure the screw nut. 5. Install the fan. Note: After installing the fan, turn the fan by hand to see if it can run normally.
  • Page 64 Maintenance Outdoor Coil Removal Note: Make sure all refrigerant has been recovered and power is isolated before removing the outdoor coil. Step Picture Work instruction Loosen the wire clamp at the bottom of the electric box. Unscrew the screws of electric box. 2.
  • Page 65 Maintenance Outdoor Coil Removal Note: Make sure all refrigerant has been recovered and power is isolated before removing the outdoor coil. Step Picture Work instruction Secure the screws of coil and support. Then fix them together on the chassis. Install the coil by referring to the positions of entering and leaving 6.
  • Page 66 Maintenance Model: AUH2436ZGDA Electronic Expansion Valve Removal Note: Recover all refrigerant and isolate power before removing the electronic expansion valve. Step Picture Work instruction Remove the upper, lower and front panels. Loosen the wire clamp at the bottom of the electric box Unscrew the screws of electric box.
  • Page 67 Maintenance Electronic Expansion Valve Removal Note: Recover all refrigerant and isolate power before removing the electronic expansion valve. Step Picture Work instruction 4. Take out the electronic Take out the electronic expansion expansion valve. valve. Braze the connection pipe of electronic expansion valve.
  • Page 68 Maintenance Electronic Expansion Valve Removal Note: Recover all refrigerant and isolate power before removing the electronic expansion valve. Step Picture Work instruction Check whether each component and connection wire is well connected. 7. Check and open the upper If everything is OK, install the upper, and front panels.
  • Page 69 Maintenance Front Panel Removal Note: Be sure power is isolated before removing front panel. Step Picture Work instruction Unscrew the screws of the front grill with a 3. Remove the front grill. screwdriver. Unscrew the screws that connect the front 4.
  • Page 70 Maintenance Front Panel Removal Note: Be sure power is isolated before removing front panel. Step Picture Work instruction Unscrew the screws of the valve cover with 7. Remove the valve cover a screwdriver. Unscrew the screws that connect the 8. Remove the right side plate. right side plate to the electric box and the screws around the right side plate.
  • Page 71 Maintenance Front Panel Removal Note: Be sure power is isolated before removing front panel. Step Picture Work instruction 11. Install the upper cover Tighten up the screws around the upper plate. cover plate. Model: AUH4860ZGDA Compressor Disassembly Note: Be sure the refrigerant is recovered and power is isolated before removing the compressor. Step Picture Work instruction...
  • Page 72 Maintenance Compressor Disassembly Note: Be sure the refrigerant is recovered and power is isolated before removing the compressor. Step Picture Work instruction Braze the pipes that are connected to the compressor. 3. Break off the pipes that Then remove the pipes. connect to the compressor.
  • Page 73 Maintenance Compressor Disassembly Note: Be sure the refrigerant is recovered and power is isolated before removing the compressor. Step Picture Work instruction Braze the compressor connection pipes and connect them to the compressor. 6. Connect the pipes to the Note: When replacing the compressor, suction and discharge ports.
  • Page 74 Maintenance Model: AUH4860ZGDA 4-Way Valve Removal Note: Make sure refrigerant is fully recovered and power is isolated before removing the 4-way valve. Step Picture Work instruction 1. Remove the solenoid coil Carefully unscrew the screws of from the 4-way valve electromagnetic coil with a screwdriver.
  • Page 75 Maintenance 4-Way Valve Removal Note: Make sure refrigerant is fully recovered and power is isolated before removing the 4-way valve. Step Picture Work instruction 4. Install the coil of 4-way Tighten the screws of the coil of 4-way valve. valve with a screwdriver. Model: AUH4860ZGDA Fan and Motor Removal Note: Be sure to isolate power before removing the fan.
  • Page 76 Maintenance Fan and Motor Removal Note: Be sure to isolate power before removing the fan. Step Picture Work instruction Use a wrench to remove the specialized nut and gasket of the fan. 2. Remove the fan. Note: Please keep the nut and gasket safe after removing them from the fan.
  • Page 77 Maintenance Fan and Motor Removal Note: Be sure to isolate power before removing the fan. Step Picture Work instruction Install the fan in place. Put on the gasket and use a wrench to secure the screw nut. 5. Install the fan. Note: After installing the fan, turn the fan by hand to see if it can run normally.
  • Page 78 Maintenance Model: AUH4860ZGDA Compressor/Gas Liquid Separator Removal Note: Be sure power is isolated and refrigerant is recovered before removing the gas liquid separator. Step Picture Work instruction Remove the upper, lower and front panels. 1. Loosen the wire clamp at the bottom of the electric box and Loosen the wire clamp at the bottom the screws of electric box.
  • Page 79 Maintenance Compressor/Gas Liquid Separator Removal Note: Be sure power is isolated and refrigerant is recovered before removing the gas liquid separator. Step Picture Work instruction Install the gas liquid separator by referring to the positions of entering and leaving pipes. Braze the two joints Nitrogen welding: the pressure of 4.
  • Page 80 Maintenance Model: AUH4860ZGDA Electronic Expansion Valve Removal Note: Be sure power is isolated and refrigerant is recovered before removing the Electronic Expansion Valve Step Picture Work instruction Remove the upper, lower and front panels. 1. Loosen the wire clamp at the bottom of the electric box Loosen the wire clamp at the bottom and the screws of electric box.
  • Page 81 Maintenance Electronic Expansion Valve Removal Note: Be sure power is isolated and refrigerant is recovered before removing the Electronic Expansion Valve Step Picture Work instruction 4. Take out the electronic Take out the electronic expansion expansion valve. valve. Braze the connection pipe of electronic expansion valve.
  • Page 82 Maintenance Electronic Expansion Valve Removal Note: Be sure power is isolated and refrigerant is recovered before removing the Electronic Expansion Valve Step Picture Work instruction Check whether each component and connection wire is well connected. 7. Check and open the upper If everything is OK, install the upper, and side panels.
  • Page 83 Maintenance Electric Box Disassembly and Assembly Note: Be sure power is isolated and refrigerant is recovered before removing the Electronic Expansion Valve Step Picture Work instruction Disconnect the electric element from the wiring terminal. 3. Remove the electric Loosen screws around the electric element.
  • Page 84 Maintenance Fan Motor Disassembly and Assembly Step Picture Work instruction Loosen screws round the upper panel 1. Remove the upper with a screwdriver. panel. Remove the upper panel from unit. Disconnect the wires of the fan from the wiring terminal and draw them out.
  • Page 85 Maintenance Indoor Coil And Drain Pan Disassembly and Assembly Step Picture Work instruction Loosen screws round the upper panel 1. Remove the upper with a screwdriver. panel. Remove the upper panel from unit Loosen screws round the lower panel 2. Remove the lower with a screwdriver.
  • Page 86 Maintenance Indoor Coil And Drain Pan Disassembly and Assembly Step Picture Work instruction 5. Remove the primary Remove the primary drain pan from drain pan. the unit. 6. Remove the Remove the secondary drain pan secondary drain pan. from the unit. Remove the coil away from the primary drain pan.
  • Page 87 Maintenance Filter Disassembly and Assembly Step Picture Work instruction Loosen screws fixing the mounting plate. 1. Remove the mounting plate Remove the mounting plate away from the unit Remove the filter screen away from the unit. 2. Remove the filter After replacing the filter screen, reassemble the unit as screen before.

  • Page 88: Exploded View And Parts Lists

    Maintenance Exploded View and Parts Lists ODU Exploded View and Parts Lists AUH2436ZGDA CONNECT SERIES SERVICE MANUAL...
  • Page 89 Maintenance Material name Material name Coping Fusible Plug Electric Box Assembly Gas-liquid Separator PFC Inductance Accumulator Filter Board 4 Way Valve Coil Reactor Sub-Assembly Drainage Hole Cap Power Switch Temperature Sensor Main Board Temperature Sensor Inductance Electrical Heater(Compressor) Terminal Board Electrical Heater (Chassis) Terminal Board Electric Expansion Valve Sub-Assembly...
  • Page 90 Maintenance AUH4860ZGDA CONNECT SERIES SERVICE MANUAL...
  • Page 91 Maintenance Material name Material name Coping Foot Rear Grill Chassis Sub-Assembly Left Side Plate Cut Off Valve Sub-Assembly Electric Box Assembly Strainer Drive Board Magnet Coil (Electromagnetic Valve) Radiator Electric Expand Valve Fitting Main Board One Way Valve Filter Board Cut-off Valve Terminal Board Electronic Expansion Valve...
  • Page 92 Maintenance IDU Exploded View and Parts Lists UUY24ZGDAA, UUY36ZGDAA CONNECT SERIES SERVICE MANUAL...
  • Page 93 Maintenance Material name Coping Left Side Plate Electric Box Assembly Terminal Board Transformer Terminal Board Main Board Terminal Board Pinboard Rear Side Plate Centrifugal Fan Assembly Motor For Centrifugal Fan Brushless DC Motor Top Cover Board Sub-Assembly Bottom Cover Plate Assembly Right Side Plate Bottom Cover Plate Assembly Water Tray...
  • Page 94 Maintenance UUY36ZGDAB, UUY60ZGDAB 20 21 23 24 25 26 27 28 30 31 Material name Material name Side Plate Bottom Cover Plate Assembly Top Cover Sub-Assembly Lower Cover Plate Sub-Assembly 2 Centrifugal Fan Assembly Cut-off Valve 3/8(N) Motor for Centrifugal Fan Thermal Expansion Valve Brushless DC Motor Cut off Valve...

  • Page 95: Appendices

    Appendices Temperature Sensor Temperature/Resistance/Voltage Lists 15 KΩ Temperature Sensors (including ODU temperature sensors) F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) -4.0 0.311 77.0 1.65 -2.2 138.1 0.323 78.8 14.36 1.686 -0.4 128.6 0.345 80.6 13.74 1.722 121.6 0.362...
  • Page 96 Appendices F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) 159.8 2.523 2.825 240.8 0.642 3.165 161.6 2.439 2.838 242.6 0.625 3.168 163.4 2.358 2.852 244.4 0.608 3.171 165.2 2.28 2.865 246.2 0.592 3.175 167.0 2.205 2.877 248.0 0.577 3.178...

  • Page 97: 20 Kω Pipeline Temperature Sensors (Including Temperature Sensors For Defroster, Idu And Odu Pipes)

    Appendices 20 KΩ Pipeline Temperature Sensors (including temperature sensors for defroster, IDU and ODU pipes) F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) -22.0 361.8 0.173 64.4 27.39 1.393 -20.2 339.8 0.183 66.2 26.17 1.429 -18.4 319.2 0.195 68.0...
  • Page 98 Appendices F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) 150.8 3.998 2.75 237.2 0.9043 3.157 152.6 3.861 2.766 239.0 0.8799 3.161 154.4 3.729 2.781 240.8 0.8562 3.165 156.2 3.603 2.796 242.6 0.8333 3.168 158.0 3.481 2.811 244.4 0.8111 3.171...

  • Page 99: 50 Kω Discharge Temperature Sensors (Including Discharge Air Temperature Sensor)

    Appendices 50 KΩ Discharge Temperature Sensors (including discharge air temperature sensor) F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) -22.0 911.56 0.036 60.8 73.896 0.393 -20.2 853.66 0.038 62.6 70.503 0.41 -18.4 799.98 0.041 64.4 67.338 0.427 -16.6 750.18...
  • Page 100 Appendices F° C° Resistance (kΩ) Voltage (V) F° C° Resistance (kΩ) Voltage (V) 143.6 11.322 1.548 226.4 2.6404 2.611 145.4 10.925 1.577 228.2 2.5682 2.626 147.2 10.544 1.606 230.0 2.4983 2.64 149.0 10.178 1.635 231.8 2.4308 2.655 150.8 9.8269 1.664 233.6 2.3654 2.669...

  • Page 101: Refrigerant R-410A Temperature/Pressure List

    Appendices Refrigerant R-410A Temperature/Pressure List PSIG °F PSIG °F PSIG °F PSIG °F –37.7 31.2 65.8 90.4 –34.7 32.2 66.4 90.9 –32.0 33.2 91.4 –29.4 34.1 67.7 91.9 –36.9 35.1 68.3 92.4 –24.5 35.5 68.9 92.8 –22.2 36.9 69.5 93.3 –20.0 37.8 70.1...
  • Page 102 Appendices PSIG °F PSIG °F PSIG °F 126.3 140.4 110.4 126.6 110.8 141.6 111.2 127.3 142.1 111.6 127.7 142.7 143.3 112.4 128.3 143.9 112.6 128.7 144.5 113.1 113.5 129.3 145.6 113.9 129.7 146.2 114.3 146.7 114.7 130.3 147.3 130.7 147.9 115.5 148.4 115.8...

  • Page 103: Operation Tools

    Appendices Refrigerant R-410A Temperature/Pressure List (kPa/°C) °C °C °C 1880 1910 1960 2030 2080 2130 2180 2240 1020 2290 1050 2350 1090 2410 1110 2460 1150 2510 1180 2580 1220 2650 1250 2710 1280 2770 1320 2840 1350 2910 1400 2980 1440 3050...
  • Page 104 GE Appliances, A Haier Company Appliance Park, Louisville, KY 40225 ©2021 GE Appliances, A Haier Company Revision Date: August 2021...

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