Mitsubishi Air Conditioners MSZ-FD25VA & MSZ-FD35VA Manual - Refrigerant System Diagram

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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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Image 8

Mitsubishi Electronics MSZ-FD25VAS, MSZ-FD35VAS service manual Refrigerant System Diagram, Unit mm

Contents

MSZ-FD25VA E1 MSZ-FD25VAS E1 MSZ-FD35VA E1 MSZ-FD35VAS E1 Page Technical Changes Part Names and Functions See control operation Indoor model SpecificationSpecifications and rating conditions of main electric parts Noise Criteria Curves MSZ-FD25VA MSZ-FD25VAS Unit mm Outlines and DimensionsWiring Diagram Refrigerant System Diagram Unit mm Service Functions Timer Short ModeP.C. Board Modification for Individual Operation J1 J2 Operation Remote ControllerAuto Restart Function Microprocessor Control OPERATE/STOP Auto Change Over ··· Auto Mode Operation Cool OperationDRY Operation Heat Operation Horizontal vane Auto Vane OperationOutdoor Unit MXZ series Vertical vane COOL/DRY Heat See Sensor Area SettingSee Control Operation Daytime Plasma Operation Operation and operating range Program Timer Clean OperationTimer Operation EMERGENCY/TEST Operation Minute Time Delay OperationEmergency Operation switch E.O.SW Troubleshooting Failure Mode Recall Function OFF Flow chart of Plasma operation failure mode recall function Plasma operation check Indoor unit failure mode table Plasma operation failure mode table Instruction of Troubleshooting Start Troubleshooting Check Table An abnormality other than above mentioned is detected Plasma Trouble Criterion of Main Parts Troubleshooting Flow Power lamp flashes 3-time Indoor fan does not operate Yes 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 Photo Power 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 Photo Specifications subject to change without notice