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GE AZ45E07DA Series, Technical Service Manual, Page: 27 / 64

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GE AZ45E07DA Series Technical Service Manual Download Page 27

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Controls

  Main Board - Front Cover

MAIN BOARD

The new Zoneline series uses a MAIN board that contains the microprocessor. It processes the information 

input from the USER interface or wall thermostat, the thermistors, and fan motors feedback. It then activates 
the associated relays for the selected cycle. The MAIN board also has a DC power supply to provide the 
needed DC voltage to run the indoor and outdoor fan motors. 

Personality is programmed into the board at the time of manufacture.

Service MAIN boards will have two “dip” switches to allow it to be set-up for the proper Zoneline model it will 
be installed in.

USER INTERFACE 

12 pin

Unused

CDC

REMOTE 

THERMOSTAT

RJ-45

HEATER PERSONALITY

AC input

Summary of Contents for AZ45E07DA Series

Page 1: ...GE Appliances Louisville Kentucky 40225 31 9252 Technical Service Guide April 2016 GE Appliances 230 208 VOLT MODELS AZ45E07DA_ _1 AZ65H07DA_ _1 AZ45E09DA_ _1 AZ65H09DA_ _1 AZ45E12DA_ _1 AZ65H12DA_ _...

Page 2: ...ARNING To avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the nece...

Page 3: ...6 Constant Fan 17 Random Restart 18 Freeze Prevention for Indoor Coil Cooling 20 Indoor Coil Overheat Protection 21 Reverse Cycle Defrosting Heat Pump Mode 22 Internal Condensate Removal Control 23 He...

Page 4: ...in wire cover 40 Power Cords 41 ICR System 41 Damper Door 42 Make Up Air Module MUAM 42 Sealed System 44 Sealed System Heat Pump 45 Compressor 45 Sealed System Heat Pump Components 45 Service Replacem...

Page 5: ...formation for R410A is available in Service Guide 31 9192 56 Wiring Diagrams 57 Early Production Wiring Diagram 57 Early Production Wiring Diagram 58 Serial range for Early Production Zonelines VF1018...

Page 6: ...oes for all repairs Steel Toed Work Boot Electrically Rated Glove and Dyneema Cut Resistant Glove Keeper Dyneema Cut Resistant Glove Plano Type Safety Glasses Prescription Safety Glasses Safety Glasse...

Page 7: ...h the same condensing temperature of 120 F and 45 F evaporator saturation temperature will have a high side pressure of approximately 500 psi and a low side pressure of approximately 150 psi 5 16 sock...

Page 8: ...e Make up Air Supplies 35 CFM of continuous conditioned fresh make up air Cooling Capacity 9 100 BTU 230 volts 8 800 BTU 208 volts Energy E ciency 11 0 EER on average over 8 more e cient than other br...

Page 9: ...s of the serial number identify the month and year of manufacture The letter designating the year repeats every 12 years Example LA123456S June 2013 A JAN D FEB F MAR G APR H MAY L JUN M JUL R AUG S S...

Page 10: ...outdoor fan run AZ6500 In the cooling mode the compressor indoor fan and outdoor fan run the reversing valve is energized throughout the entire cooling cycle Heating AZ4500 In the heating mode AZ4500...

Page 11: ...on Stage 3 Heater A and Heater B are energized at full power to generate heat until the room temperature rises to the temperature setting regardless of the outdoor temperature Automatic changeover bet...

Page 12: ...power cord for all outdoor temperatures except for l2R lock out conditions Stage 3 will continue to operate until the room temperature exceeds the temperature control set point by 0 9 F at which time...

Page 13: ...at pump modes remain o Boost Heat Mode AZ6500 series ONLY When the boost heat auxiliary set button is enabled and the outdoor temperature is above 25 F the rst stage heat heat pump only is locked out...

Page 14: ...e indoor fan runs for a short period of time approximately 3 seconds before the compressor and outdoor fan are turned on The indoor fan runs continuously for a short period of time approximately 30 se...

Page 15: ...the indoor fan will continue to operate for six seconds after the user has stopped the Zoneline in order to dissipate the heat inside the Zoneline In the heating mode the indoor fan is designed to ope...

Page 16: ...ON The outdoor fan and the compressor are turned ON at the same time The indoor fan is then turned OFF 6 seconds after the compressor and outdoor fan are turned OFF FAN CYCLE HEAT PUMP MODE Fan Cycle...

Page 17: ...l Any time a fan is energized the control checks that the fan reaches the target RPM speed 150 RPMs If the target cannot be met the fan motor will shut down for 15 minutes and will set a fault code It...

Page 18: ...second power outage of inde nite length The controls will revert to settings established prior to the outage The Random Restart function is e ective in the Class 2 mode Random Restart for AZ4500 Serie...

Page 19: ...ver a 3 to 20 seconds timing period Cool Mode Heat Mode Stop Mode Compressor Run Power Down Heat Pump Operation 3 mins Power Recovered Range Stop Fan Operation Quick Heat Recovery Compressor Run Power...

Page 20: ...mpressor will start running again when the coil temperature reaches 50 F or above However the safety re starting function will prevent the compressor restarting if the minimum 3 minute shutdown time p...

Page 21: ...perature is too high for heat pump operation The temperature of the indoor coil is monitored and if it rises above 131 F the control stops the outdoor fan The Zoneline will resume normal operation whe...

Page 22: ...n On On On On On On On On T1 T2 Stage 1 or 2 Heat Stage 3 Heat Reverse Cycle Stage 3 Heat Stage 1 or 2 Heat Defrost Operating Sequence When either of the conditions are detected the Zoneline will init...

Page 23: ...ne base pan into a collector tray positioned above the indoor coil That condensate will then drain from the tray onto the warm indoor coil where it will be evaporated into the room atmosphere If an ex...

Page 24: ...user being able to change the operating mode of the Zoneline While the Zoneline is operating in the desired mode press and hold the Display Show Hide button for 10 seconds to lock the control to this...

Page 25: ...entries and pressing changes the value AUX saves and exits the set up Press AUX SET First Digit Second Digit Press Mode Press Smart Fan Cycle Cont Temperature Display Sentinel O On Constant Fan O On T...

Page 26: ...ons provide 24 VAC to energize a remote relay The RAKCDC accessory must be used when using an external fan NOTE Mode 6 in AUX SET must be set to ON to operate the Zoneline on remote thermostat The Rem...

Page 27: ...ctivates the associated relays for the selected cycle The MAIN board also has a DC power supply to provide the needed DC voltage to run the indoor and outdoor fan motors Personality is programmed into...

Page 28: ...28 Main Board J29 INDOOR THERMISTORS J30 OUTDOOR J2 INDOOR MOTORS J3 OUTDOOR HEATER PLUG J4 LOW VOLTAGE TRANSFORMER J21 COMPRESSOR DLB RELAY J23 ICR PUMP J22 REVERSING VALVE COIL AC INPUT PLUG...

Page 29: ...5k ohms approximately J2 pin 3 6 White to Red J2 pin 4 6 Black to Red Outdoor Fan Motor J3 pin 1 2 Blue to Yellow J3 pin 3 4 White to Black 47k ohms approximately J3 pin 3 6 White to Red 8meg ohms ap...

Page 30: ...30 Service Main Board Service Main Board Continued next page...

Page 31: ...follows SZitch Position Meaning S2 1 o heat pump on air conditioner S2 2 BTU setting See chart below S2 3 BTU setting S2 4 Make up air module tted S3 1 Heat pipe option tted S3 2 Indoor outlet thermi...

Page 32: ...s contained on this board There is a ferrite ring that the harness connecting the boards wraps around to minimize Electro Magnetic Interference EMI Three screws secure the User Interface Control Assem...

Page 33: ...is shipped from the factory with the air ow set to 45 from horizontal To change the air ow to 85 from horizontal remove the four screws and rotate the louver assembly and reinstall screws Factory set...

Page 34: ...stem is repaired Also because R410a has much higher operating pressures a pressure switch has been added to the compressor discharge line and will remove power to the compressor if the sealed system p...

Page 35: ...r Resistance ohms F AIR COIL 10 63260 94900 30 34620 51940 32 32860 49330 50 19970 29960 70 11950 17930 90 7320 10970 All Zoneline heat pump models have two indoor thermistors and two outdoor thermist...

Page 36: ...DC to drive the fan motor and receives speed feedback from the motor The motor is secured with a bracket and two screws Indoor BloZer Wheel The indoor blower wheel is attached to the motor shaft with...

Page 37: ...y The above image shows proper placement of the bearing Failure to install properly will result in a noise complaint Remove six screws to remove the end cap to access the bearing assembly Two screws a...

Page 38: ...fan shroud and motor assembly are attached to the base pan and outdoor coil assembly with twelve screws and a sleeve that slides over the shroud and outdoor coil assembly NOTE An extension will make a...

Page 39: ...an blade which is attached to the motor shaft with a 3 8 in regular thread nut The motor is secured to the outdoor shroud with four 5 16 in hex head shoulder bolts NOTE If the wire clip found below th...

Page 40: ...eater assembly Two screws are used to secure the bracket attached to the indoor coil and end cap After disconnecting the wire harness from the board and removing one ground screw the heater assembly w...

Page 41: ...nternal Condensate Removal system consists of a small pump that is driven by the main board The board supplies line voltage to the pump Defrost water that is collected in the rear base pan is pumped u...

Page 42: ...opens the door It then can be locked into place by tightening the wing nut Damper Door This feature allows outside air to be conditioned before entering the room The module is secured with two screws...

Page 43: ...M compressor when temperature is below 50 F If troubleshooting the Make Up Air Module with an amp probe the amperage should be between 75 and 1 amp measured on the BLUE wire of the Make Up Air Module...

Page 44: ...44 Complete cooling only sealed system with all other components removed Install a new drier in the liquid line tube between the outdoor coil and the capillaries Sealed System...

Page 45: ...ump models the refrigerant ow direction is controlled by the reversing valve assembly In the cooling mode the main board supplies line voltage to the solenoid coil which causes the valve to switch ow...

Page 46: ...s electrical switch will shut down the compressor if too high of pressure is detected It is part of the sealed system tapped o of the compressor discharge line NOTE Should the pressure switch fail for...

Page 47: ...the thermal fuse opens the compressor will hum and trip the overload protector Electrical Thermal fuse Capacitor Fuse link 230 208 models only Low voltage transformer Capacitor The capacitor assists...

Page 48: ...0 and 265 volt models The 208 230 volt models use WHITE to RED for line input and BLACK to BLACK for 24 VAC output The 265 volt models use WHITE to BROWN for line input and YELLOW to YELLOW for 24 VAC...

Page 49: ...ater is also collected in base pan but because outdoor temperatures may drop below freezing the water level could cause the outdoor fan blade to freeze in the pan To prevent this from occurring a ther...

Page 50: ...age No Resistance heating fan heat pump or cooling available Fault clears after 10 minutes F2 Outdoor fan fault Fan motor not moving at commanded speed after 90 seconds of drive voltage No heat pump o...

Page 51: ...til the coil temperature recovers Fault clears once indoor coil temperature rises above 50 F F10 Heat pump over temp fault The temperature of the indoor coil is over 131 F The outdoor fan motor is shu...

Page 52: ...oneline has been in this mode for 10 seconds 7 UI UI Test Run the LED test sequence 8 So Software version is displayed AZ6500 1 CL Cooling Compressor Indoor Fan reversing valve and Outdoor fan are ene...

Page 53: ...53 Sealed System Refrigerant FloZ Cooling...

Page 54: ...54 Sealed System Refrigerant FloZ Heating...

Page 55: ...d Port Open Vapor Port Closed High Side Tap Valve WX5X328 High Pressure Switch On Filter 410A Recovery Cylinder Recovery Hose Hook Ups Complete charging and recovery information for R410A is available...

Page 56: ...56 Charging Summary Safety Switch Charging Summary Charging Hose Hook Ups Complete charging and recovery information for R410A is available in Service Guide 31 9192...

Page 57: ...mage shown This wiring diagram depicts how this cut out is wired into the circuit NOTE If this cut out opens the compressor will only have the run winding energized and will shut o on the overload pro...

Page 58: ...CE WIFI INTERFACE DLB RELAY4 DLB RELAY3 EXTERNAL GEA2 THERMOSTAT ACCESSORY HEATER SELECTOR PLUG CDC ACCESSORY 24 VAC TRANSFORMER INDOOR FAN OUTDOOR FAN FERRITE BEAD MAIN BOARD NOTICE TURN OFF THE POWE...

Page 59: ...looks like the image shown This wiring diagram depicts how this cut out is wired into the circuit NOTE If this cut out opens the compressor will be totally inoperative Be sure to check this cut out be...

Page 60: ...MAIN BOARD NOTICE TURN OFF THE POWER SUPPLY FOR TWO MINUTES BEFORE DISCONNECTING MOTOR CONNECTOR J2 J3 OR MOTOR DAMAGE MAY OCCUR ON DAM MODELS MAKE UP AIR MODULE COMPRESSOR TEST PUSH BUTTON J23 ON MA...

Page 61: ...0 N 20 Top of Switch Bottom of Switch ON OFF SWITCH R 20 B 20 N 20 GY 20 L2 L1 The fans always run when the power switch is ON but the compressor cycles on o during the following conditions 1 The modu...

Page 62: ...v 30 A includes junction box RA 515P Short Power Cord 265 v 15 A RA 520P Short Power Cord 265 v 20 A RA 530P Short Power Cord 265 v 30 A RA 515D Direct Connect Pigtail 265 v 15 A RA 520D Direct Connec...

Page 63: ...inal purchase Fan Motors Switches Thermostat Heater Heater Protectors Compressor Overload Solenoids Circuit Boards Auxiliary Controls Thermistors Freeze Sentinel Frost Controls ICR Pump Capacitors Var...

Page 64: ...OLTAGE TRANSFORMER 28 M Make Up Air Module 34 42 Mini Manual location 9 Model Serial location 9 N Nomenclature 9 O ON OFF switch 42 outdoor fan blade 7 49 outdoor fan motor 38 39 51 Outdoor fan shroud...

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