Manuals / Mitsumi electronic / Household Appliance / Air Conditioner

Mitsumi electronic PKA-A12HA4, PKA-A18HA4 service manual

Models: PKA-A18HA4 PKA-A12HA4

1 36

Download 36 pages 12.47 Kb

Page 34

Image 34

Page 34

Image 34

Mitsumi electronic PKA-A12HA4, PKA-A18HA4 service manual

Contents

November Indoor unit Model names Service RefCONTENTS SPLIT-TYPE,HEAT PUMP AIR CONDITIONERSIR wireless remote controller REFERENCE MANUALRemote controller Optional parts Radio frequency interface1Cautions for service 2 SAFETY PRECAUTION2-1.ALWAYS OBSERVE FOR SAFETY 2-2.CAUTIONS RELATED TO NEW REFRIGERANTUnit Gravimeter 3 Service tools3 PART NAMES AND FUNCTIONS Indoor unitOperation Section Wired remote controller OptionDisplay Section TEMPTIMER display IR wireless remote controller OptionTemperature setting display TIMER CONTROL buttonsService Ref 4 SPECIFICATIONSService Ref PKA-A12HA4NC-70 5 NOISE CRITERION CURVESPKA-A12HA4 PKA-A18HA4 NC-60PKA-A12HA4 PKA-A18HA4 6 OUTLINES AND DIMENSIONSUnit inch mm PKA-A12HA4 7 WIRING DIAGRAMPKA-A18HA4 PKA-A12HA4 PKA-A18HA4 8 REFRIGERANT SYSTEM DIAGRAMHeat exchanger 9 TROUBLESHOOTING 9-1.TROUBLESHOOTINGWired remote controller IR wireless remote controllerProcedure In case of trouble during operationOutput pattern B On IR wireless remote controller Room temperature thermistor TH1 9-3. SELF-DIAGNOSISACTION TABLEError Code Pipe temperature thermistor/LiquidCause Error Code Abnormal point and detection methodPipe temperature CountermeasureerrorE0/signal receiving errorE4 Pipe temperature thermistorRemote controller transmission Causeerror Signal receiving error Remote controller transmissionerrorE3/signal receiving errorE5 error Transmitting errorCause 9-4.TROUBLESHOOTING BY INFERIOR PHENOMENAPhenomena Countermeasure9-5.EMERGENCY OPERATION 9-6.HOW TO CHECK THE PARTS PKA-A12HA4 PKA-A18HA4 9-6-1.ThermistorReplace Sensor signal checkIs the voltage normal? the fusePKA-A12HA4 PKA-A18HA4 9-7.TEST POINT DIAGRAMIndoor controller board 9-8.FUNCTIONS OF DIP SWITCH AND JUMPER WIRE System constraint 10 SPECIAL FUNCTION10-1-1.Operation 22nd stage cut-infunction Outline of functions1 Request Code List System constraint10-2. BACK-UPHEATING FUNCTION CN152 Outline of functionsPHOTOS & ILLUSTRATIONS DISASSEMBLY PROCEDUREOPERATION PROCEDURE Corner holeAND IR WIRELESS CONTROLLER BOARD PHOTOSOPERATION PROCEDURE 3. REMOVING THE INDOOR CONTROLLER BOARDOPERATION PROCEDURE PHOTOSPHOTOS OPERATION PROCEDURE10. REMOVING THE ROOM TEMPERATURE THERMISTOR 8. REMOVING THE LIQUID PIPE THERMISTOR ANDPage Page Page Distributed in Nov. 2010 No.OCH483 New publication, effective NovMade in Japan