Mitsubishi Electronics PCA-A24GA service manual Additional refrigerant charge

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[2] Additional refrigerant charge

When charging directly from cylinder

·Check that cylinder for R410A on the market is syphon type.

·Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

Unit

Gravimeter

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No.		Specifications
1	Gauge manifold	·Only for R410A

		·Use the existing fitting specifications. (UNF1/2)

		·Use high-tension side pressure of 5.3MPa·G or over.

2	Charge hose	·Only for R410A

		·Use pressure performance of 5.09MPa·G or over.

3Electronic scale

4	Gas leak detector	·Use the detector for R134a, R407C or R410A.

5	Adaptor for reverse flow check	·Attach on vacuum pump.

6Refrigerant charge base

7 Refrigerant cylinder

·Only for R410A Top of cylinder (Pink)

Cylinder with syphon

8Refrigerant recovery equipment

4

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Contents Contents Revised EDITION-B PCA-A24GA PCA-A30GATechnical Changes Technical Data BookReference Manual Safety Precaution Always Observe for SafetyWhen charging directly from cylinder Additional refrigerant chargePart Names and Functions Indoor UnitDisplay Section Operation Mode display Mode Select buttonTemperature setting display Timer displaySpecifications Service RefPCA-A30GA, PCA-A30GA1Single phase, 60Hz, 208/230V PCA-A36GA, PCA-A36GA1Single phase, 60Hz, 208/230VNoise Criterion Curves PCA-A24GA1PCA-A30GA1 PCA-A36GA1Outlines and Dimensions PCA-A24GA PCA-A24GA1 PCA-A30GA PCA-A30GA1PCA-A36GA PCA-A42GA PCA-A36GA1 PCA-A42GA1 Unit inchmmWiring Diagram Indoor unit Installation ManualRefrigerant System Diagram Heat exchangerTroubleshooting TroubleshootingSELF-DIAGNOSIS Action Table Cause Countermeasure Freezing/overheating protection is Pipe temperatureWorking Cause Countermeasure Pipe temperature thermistor Remote controller transmissionErrorE0/signal receiving errorE4 ErrorE3/signal receiving errorE5Error Signal receiving error Error Transmitting errorRemote controller control board Indoor controller boardTroubleshooting by Inferior Phenomena Phenomena Cause CountermeasureIs off Ply system4Receiver for wireless remote Is blinking3Upward/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 Functions of DIP Switch and Jumper Wire ModelsDisassembly Procedure Operating Procedure Photos & IllustrationsRemoving the air intake grille Removing the electrical boxOperating Procedure Removing the fan motor MFRemoving the sirocco fan Remove the air intake grilleOperating Procedure Photos Removing the vane motor MVRemoving the Indoor coil thermistor TH2/TH5 Removing the Under panelRemoving the drain pan Removing the guide vaneRemove the intake grille. See the figure Removing the Auto vaneRemoving the heat exchanger Parts No Parts Name Specifications Drawing NoR01 29J 130 R01 35J 130Structural Part PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA Electrical Parts PCA-A24GA PCA-A30GA PCA-A36GA PCA-A42GA Parts Name Specifications RoHSRemarks Parts NoStructural Part PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1 Electrical Parts PCA-A24GA1PCA-A30GA1PCA-A36GA1PCA-A42GA1 Wiring RecomRoHS Qty/ set