Vermont Casting MSZ-D30NA, MSZ-D36NA, MSY-D36NA, MSY-D30NA Refrigerant System Diagram, Unitinch

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6 REFRIGERANT SYSTEM DIAGRAM

MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA

Unit:inch

Refrigerant pipe ø5/8 (with heat insulator)

Indoor heat exchanger

Indoor coil thermistor RT13(sub)

Room temperature thermistor

RT11

Strainer

Indoor coil thermistor RT12(main)

Distributor

Flared connection

Joint

Joint connection

Flared connection

Refrigerant pipe ø3/8		Refrigerant flow in cooling

(with heat insulator)		Refrigerant flow in heating

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Contents MSZ-D30NA MSZ-D36NA MSY-D30NA MSY-D36NA Page Technical Changes Part Names and Functions AccessoriesSpecification Outlet AIR Speed and Coverage Range Operating RangeMSZ-D36NA MSY-D30NA MSY-D36NA Outlines and DimensionsWiring Diagram Unitinch Refrigerant System DiagramTimer Short Mode Service FunctionsHow to modify the remote controller P.C. board P.C. Board Modification for Individual OperationOperation Auto Restart FunctionMicroprocessor Control Operation Indicator lampHeat Operation MSZ Cool OperationFAN Operation MSY Feel Control Operation MSYAuto Change Over ··· Auto Mode Operation MSZ Mode selectionFuzzy control Auto Vane Operation 3 4 Swing 5 Vertical vaneProgram Timer Minute Time Delay Operation Changing Temperature Indication F /CEMERGENCY/TEST Operation Before troubleshooting, check the following TroubleshootingTroubleshooting procedure How to replace batteriesOFF Failure Mode Recall FunctionEration Indica Indoor unit failure mode tableStart Instruction of TroubleshootingLighted Blinking Not lighted Troubleshooting Check TableTrouble Criterion of Main Parts Check of indoor fan motor Troubleshooting FlowCheck of remote controller and receiver P.C. board Indoor electronic control P.C. board How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios Test Point Diagram and Voltage Power monitor receiver P.C. boardSW P.C. board Board, the power monitor receiver P.C. board and the SW Disassembly InstructionsRemoving the panel Removing the electrical box, the electronic control P.CRemoving the nozzle assembly Removing the vertical vane motorRemoving the horizontal vane motor Removing the line flow fan and the indoor fan motor Page Page New publication, effective Feb Distributed in Feb . No. OBH501Made in Japan