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akira AC-PR12HM Service Manual Digest

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Summary of Contents for akira AC-PR12HM

  • Page 1: Service Manual

    Air Conditioner Service Manual...
  • Page 2 MODEL: AC-PR12HM Model No.: AC-PR12HM Version: 1.0...

  • Page 3: Table Of Contents

    TROUBLE SHOOTING GUIDE......................7 HOW TO DIASSEMBLE THE UNIT ....................14 WIRING DIAGRAM ..........................25 ELECTRICAL CONTROL SCHEME....................26 MAIN CONTROL BOARD SCHEME....................27 DISPLAY BOARD SCHEME ....................... 28 EXPLODED VIEW..........................29 PART LIST............................. 30 Model No.: AC-PR12HM Version: 1.0...

  • Page 4: Safety Precaution

    Suitable for local cooling and heating. xvi. Condenser shower and large volume tank design. xvii. Long time to pour the tank. xviii. Directly drainage available. d. CONTROL LOCATIONS For cooling only with electric heater models: Model No.: AC-PR12HM Version: 1.0...
  • Page 5 Drying operation lamp. Fan only operation lamp. Electric heating operating lamp. Mode setting button. Push this button to select the operation mode: Cool, Dry, Fan only and Heat. High fan speed lamp. Med fan speed lamp. Model No.: AC-PR12HM Version: 1.0...
  • Page 6 Timer off button: Push this button to set the OFF timer. Lock button: Press this button to lock all button except this button. Reset button: Press this button to reset all settings to factory settings. Model No.: AC-PR12HM Version: 1.0...

  • Page 7: Trouble Shooting Guide

    When the water adds up to the first position on the chassis, the pump will be activated. If the water drops down through the position, the pump will be on and stop after 2 minutes. Model No.: AC-PR12HM Version: 1.0...
  • Page 8 The speed of indoor fan can be optionally chosen as High/Mid/Low. ii. Electric heater operate as : ro om t em per ature (TA) Elec t ric h eater O FF TS+1 Temp up El ec tric h eater O N Temp down Model No.: AC-PR12HM Version: 1.0...
  • Page 9 Replace the display board if it is +5V else main PCB failure replace the main PCB. Remote control failure. Check the voltage of battery. Replace Battery failure batteries if the voltage is lower than 2.3V. Model No.: AC-PR12HM Version: 1.0...
  • Page 10 Fan motor Loose screws Tighten them. noise. Replace the motor if knocking sounds continue Worn bearings when running or loose, or the motor hums or noise appears to be internal while running. Model No.: AC-PR12HM Version: 1.0...
  • Page 11 Check and drainage the water in the Water depth is over chassis by open the drainage hose on the load in chassis chassis. Water depth Check and replace or realign if the sensing structure structure is failure. Model No.: AC-PR12HM Version: 1.0...
  • Page 12 Compressor pressure. The refrigerating system can not produce high pressure and low pressure. Replace the compressor after checking for the reason. Heat sources Reduce if too many. Model No.: AC-PR12HM Version: 1.0...
  • Page 13 Call an electrician if not within limits. Check and replace the main PCB if the Main PCB compressor relay on PCB is shorted or damaged. When the room temperature is too high, the Room temperature compressor will protect. Model No.: AC-PR12HM Version: 1.0...

  • Page 14: How To Diassemble The Unit

    Move the unit to a replace where water can be poured. Remove the rubber plug from back of the unit and drainage the water in from the unit. Remove the water tank from the unit and pour the water in the tank. Model No.: AC-PR12HM Version: 1.0...
  • Page 15 2. Remove the screws which fixed the rear panel. Model No.: AC-PR12HM Version: 1.0...
  • Page 16 3. To disassemble the display board assembly, just push the clasp and release the assembly. Now it is easy to replace the display board. Take care to release the connector which connected to the display board. Model No.: AC-PR12HM Version: 1.0...
  • Page 17 4. To disassemble the front panel. Remove the screws fixing the front panel. Screws fix the front panel from side of the unit. Screw locates on top of tank box. Screw located on bottom of chassis. Be care to release the connectors which connect to the display board. Model No.: AC-PR12HM Version: 1.0...
  • Page 18 5. To replace the main control board. Remove the screws fixing the enclosure cover. Take care of the wiring diagram on the cover. The wiring diagram is important for reference when wiring. Pay attention to the wires in the enclosure. Model No.: AC-PR12HM Version: 1.0...
  • Page 19 6. To replace the evaporator fan motor or electric heater. To disassemble the air-out frame. Remove the screws fixing the air-out frame. Lift the frame up then pull the frame forward. Remove the screws fixing the fan shell box. Model No.: AC-PR12HM Version: 1.0...
  • Page 20 Slide the electric heater bracket up and remove the parts from the unit. Now, it is easy to replace the electric heater and /or heat protector attached with the heater. 7. To replace the condenser fan motor. Remove the screws fixing the evaporator. Model No.: AC-PR12HM Version: 1.0...
  • Page 21 Then remove the bracket with condenser fan motor and blower wheel from the unit. 8. To repair the refrigerant system or replace the compressor. Disconnect the water pipe below. Remove the screws fixing the condenser fan scroll. Model No.: AC-PR12HM Version: 1.0...
  • Page 22 Remove the water pipe from the cover Then remove the condenser fan scroll. Model No.: AC-PR12HM Version: 1.0...
  • Page 23 9. To repair the water disposal system or replace the water depth switch or the pump. Remove the screws fixing the supporting board. Remove the screw fixing the pump clamp. Now, remove the pump and replace. Model No.: AC-PR12HM Version: 1.0...
  • Page 24 Press the clamp fixing the water switches which control the water in the chassis. Press downward here Then remove the screws fixing the switches and replace. Pay attention to the holes. Don’t install into wrong holes. Model No.: AC-PR12HM Version: 1.0...

  • Page 25: Wiring Diagram

    WIRING DIAGRAM Model No.: AC-PR12HM Version: 1.0...

  • Page 26: Electrical Control Scheme

    ELECTRICAL CONTROL SCHEME Model No.: AC-PR12HM Version: 1.0...

  • Page 27: Main Control Board Scheme

    MAIN CONTROL BOARD SCHEME Model No.: AC-PR12HM Version: 1.0...

  • Page 28: Display Board Scheme

    DISPLAY BOARD SCHEME Model No.: AC-PR12HM Version: 1.0...

  • Page 29: Exploded View

    EXPLODED VIEW 49.3 49.6 49.7 49.8 49.4 49.2 49.5 49.1 Model No.: AC-PR12HM Version: 1.0...

  • Page 30: Part List

    Compressor Remote controller Fan motor Fan motor PTC heater assy Electric component mounted board 49.2 Main control board 49.3 Installation board for E-parts 49.4 Electric adaptor 49.5 Capacitor 49.6 Capacitor, Fan motor 49.7 Compressor capacitor Model No.: AC-PR12HM Version: 1.0...

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