Mitsubishi Electronics Complete Guide to Refrigerant System for MSZ-FD25VA and MSZ-FD35VA Models

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REFRIGERANT SYSTEM DIAGRAM

MSZ-FD25VA MSZ-FD25VAS MSZ-FD35VA

Unit : mm

MSZ-FD35VAS

	Indoor	Indoor coil
		thermistor
	heat
		RT12 (main)
	exchanger

Indoor coil thermistor RT13 (sub)

Room temperature thermistor

RT11

Refrigerant pipe [9.52 (with heat insulator)

Flared connection

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

Refrigerant flow in cooling Refrigerant flow in heating

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Contents MSZ-FD25VA E1 MSZ-FD25VAS E1 MSZ-FD35VA E1 MSZ-FD35VAS E1 Page Technical Changes Part Names and Functions See control operationIndoor model SpecificationSpecifications and rating conditions of main electric parts Noise Criteria Curves MSZ-FD25VA MSZ-FD25VASUnit mm Outlines and DimensionsWiring Diagram Refrigerant System Diagram Unit mmService Functions Timer Short ModeP.C. Board Modification for Individual Operation J1 J2Operation Remote ControllerAuto Restart Function Microprocessor Control OPERATE/STOPAuto Change Over ··· Auto Mode Operation Cool OperationDRY Operation Heat OperationHorizontal vane Auto Vane OperationOutdoor Unit MXZ series Vertical vane COOL/DRY HeatSee Sensor Area SettingSee Control Operation Daytime Plasma Operation Operation and operating rangeProgram Timer Clean OperationTimer Operation EMERGENCY/TEST Operation Minute Time Delay OperationEmergency Operation switch E.O.SW Troubleshooting Failure Mode Recall Function OFFFlow chart of Plasma operation failure mode recall function Plasma operation checkIndoor unit failure mode table Plasma operation failure mode tableInstruction of Troubleshooting StartTroubleshooting Check Table An abnormality other than above mentioned is detectedPlasma Trouble Criterion of Main Parts Troubleshooting Flow Power lamp flashes 3-time Indoor fan does not operateYes Check of indoor P.C. board and indoor fan motor How to check miswiring and serial signal error Check of installation of the horizontal vane Electromagnetic noise enters into TV sets or radios SW P.C. Board Test Point Diagram and VoltageIndoor electronic control P.C. board CN1 Disassembly Instructions Removing the panel PhotoPower monitor receiver Removing the vertical vane motor unit Photo Removing the nozzle assembly PhotoRemoving the electrical box Photo Removing the horizontal vane motor Photo Removing the indoor fan motor and the line flow fan PhotoSpecifications subject to change without notice