Mitsubishi Electronics PCA-A24GA service manual Refrigerant System Diagram, Heat exchanger

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REFRIGERANT SYSTEM DIAGRAM

PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA

PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1

Strainer #50

Heat exchanger

Refrigerant GAS pipe connection

(Flare)

Condenser/evaporator temperature thermistor (TH5)

Refrigerant flow in cooling

Refrigerant flow in heating

Refrigerant LIQUID pipe connection (Flare)

	Pipe temperature
Room temperature	thermistor/liquid
thermistor (TH1)	(TH2)

Strainer

Distributor#50 with strainer

#50

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Contents Revised EDITION-B ContentsPCA-A24GA PCA-A30GATechnical Changes Technical Data BookReference Manual Always Observe for Safety Safety PrecautionAdditional refrigerant charge When charging directly from cylinderIndoor Unit Part Names and FunctionsDisplay Section Mode Select button Operation Mode displayTemperature setting display Timer displayService Ref SpecificationsPCA-A30GA, PCA-A30GA1Single phase, 60Hz, 208/230V PCA-A36GA, PCA-A36GA1Single phase, 60Hz, 208/230VPCA-A24GA1 Noise Criterion CurvesPCA-A30GA1 PCA-A36GA1 PCA-A24GA PCA-A24GA1 PCA-A30GA PCA-A30GA1 Outlines and DimensionsUnit inchmm PCA-A36GA PCA-A42GA PCA-A36GA1 PCA-A42GA1Indoor unit Installation Manual Wiring DiagramHeat exchanger Refrigerant System DiagramTroubleshooting TroubleshootingSELF-DIAGNOSIS Action Table Cause Countermeasure Freezing/overheating protection is Pipe temperatureWorking Remote controller transmission Cause Countermeasure Pipe temperature thermistorErrorE0/signal receiving errorE4 ErrorE3/signal receiving errorE5Error Transmitting error Error Signal receiving errorRemote controller control board Indoor controller boardPhenomena Cause Countermeasure Troubleshooting by Inferior PhenomenaIs off Ply systemIs blinking 4Receiver for wireless remote3Upward/downward vane Performance failurePage Vane motor MV Between 1 to 3 12.6-13.7V DC Pin1 + Test Point DiagramConnect to the indoor controller board CN2D PCA-A36GA PCA-A36GA1 Models Functions of DIP Switch and Jumper WireOperating Procedure Photos & Illustrations Disassembly ProcedureRemoving the air intake grille Removing the electrical boxRemoving the fan motor MF Operating ProcedureRemoving the sirocco fan Remove the air intake grilleRemoving the vane motor MV Operating Procedure PhotosRemoving the Indoor coil thermistor TH2/TH5 Removing the Under panelRemoving the guide vane Removing the drain panRemove the intake grille. See the figure Removing the Auto vaneRemoving the heat exchanger Drawing No Parts No Parts Name SpecificationsR01 29J 130 R01 35J 130Structural Part PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA Electrical Parts PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA RoHS Parts Name SpecificationsRemarks Parts NoStructural Part PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1 Electrical Parts PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1 Wiring RecomRoHS Qty/ set