Mitsubishi Electronics MSY-A17NA Operating Procedure Photos, Photo Removing the electrical box

Page 26

 

OPERATING PROCEDURE

PHOTOS

2. Removing the electronic control P.C. board, the

Photo 3

power monitor receiver P.C. board, SW P.C. board

 

and the terminal block

 

(1)

Remove the horizontal vane, the panel (Refer to 1.) and

 

 

the corner box.

 

(2)

Remove the screw of the conduit cover, and conduit cover.

 

 

(See Photo 2.)

 

(3)

Remove the indoor/outdoor connecting wire.

Switch holder

 

 

(4)

Remove the switch holder from the electrical cover.

 

 

(See Photo 3.)

 

(5)

Remove the screw of the electrical cover, and then the

Screw of the

 

electrical cover. (See Photo 3.)

 

electrical cover.

 

 

(6)Remove the ground wire connected to the indoor electronic control P.C. board from the electrical box.

(See Photo 4.)

Power monitor

receiver

(7) Unhook the power monitor receiver P.C. board holder from

P.C. board holder

the catch. (See Photo 3.)

 

(8) Open the rear cover of the power monitor receiver P.C.

Photo 4

board holder and pull out the power monitor receiver P.C.

Ground wire

board.

(9) Open the switch holder and pull out SW P.C. board.

 

(10) Pull the electronic control P.C. board slightly toward you

Indoor fan motor

from the electrical box, and disconnect TAB3 and all the

connector (CN211)

connectors on the electronic control P.C. board.

Indoor coil thermistor

(LD101 and LD105 are direct-mounted to the electronic

connector (CN112)

control P.C. board.)

 

(11)Pull out the electronic control P.C. board from the electrical box.

(12) Remove the ground wire connected to the heat exchanger

Vane motor

from the electrical box. (See Photo 4.)

connector (CN151)

(13)Unhook the catches of the electrical box, and pull out the electrical box.

(14)Remove the screw of the terminal block cover, and then remove the terminal block cover and the terminal block holder. (See Photo 5)

(15)Remove the terminal block by sliding it.

Photo 5

3.Removing the electrical box

(1)Remove the horizontal vane, the panel (Refer to 1.) and the corner box.

(2)Remove the screw of Conduit cover, and then the indoor/ outdoor connecting wire. (See Photo 2.)

(3)Remove the switch holder and the electrical cover. (See Photo 3.)

(4)Remove the ground wire connected to the heat exchanger from the electrical box. (See Photo 4.)

(5)Disconnect the following connectors on the electronic

control P.C. board; the fan motor connector <CN211>, the indoor coil thermistor connector <CN112>, the vane motor connector <CN151>.

(6)Unhook the catches of the electrical box, and pull out the electrical box.

Screw

26

Image 26
Contents Contents Revised EDITION-ATechnical Changes MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY-A24NA AccessoriesPart Names and Functions MSY-A15NA MSZ-A24NA MSY-A17NA MSY-A24NASpecification Operating Range Outlet AIR Speed and Coverage RangeUnit inch Outlines and DimensionsMSZ-A09NA MSY-A15NA MSZ-A12NA MSY-A17NA MSZ-A15NA MSZ-A17NA MSZ-A24NA Wiring Diagram MSZ-A15NA MSY-A15NA Refrigerant System DiagramMSZ-A09NA MSZ-A12NA MSZ-A17NA MSY-A17NAHow to modify the remote controller P.C. board Service FunctionsTimer Short Mode P.C. Board Modification for Individual OperationOperation TroubleshootingAuto Restart Function Information for Multi System AIR Conditioner Troubleshooting procedureHow to replace batteries Outdoor Unit MXZ seriesFailure mode recall function Those figures show about MSZ-A09/12/15/17Indoor unit failure mode table Instruction of troubleshooting OperationTroubleshooting check table Indicates abnormalitiesTrouble criterion of main parts MXZ typeTroubleshooting flow Check of indoor fan motorCheck of remote controller and receiver P.C. board Indoor electronic control P.C.Board How to check mis-wiring and serial signal error Electromagnetic noise enters into TV sets or radios Indoor electronic control P.C. board Test point diagram and voltagePower monitor receiver P.C. board SW P.C. boardMSZ-A24NA MSY-24NA Display P.C. board Receiver BoardDisassembly Instructions Removing the panel PhotoOperating Procedure Photos Photo Removing the electrical boxFan Removing the horizontal vane motor unit PhotoRemoving the indoor fan motor and the line flow Photo Motor bandRemoving the electronic control P.C. board, the receiver MSZ-A24NA MSY-A24NA Operating Procedure PhotosRemoving the front panel Board and the display P.C. boardRemoving the vane motor Removing the line flow fan and the indoor fan motorParts List Accessory and Remote ControllerBearing Mount Nozzle AssemblySwitch Holder Sleeve BearingAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Screw CAP Front Panel AssemblyCatch GrilleIndoor Unit Functional Parts and Electrical Parts AIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Catechin AIR Filter Right AIR Cleaning Filter MAC-415FT-E E12 751 RoHSQty/unit Part name E12 A54 235RoHS Part name E12 A54 E12 A5611 G E12 A58 620 Indoor Heat Exchanger Symbol Wiring Qty/unit Remarks E1210 G E12 888 007 Lamp Panel Diagram MV2 MV1 E12 A58 300 Indoor FAN Motor Assembly W111 G E12 408 303 Vane Motor Horizontal Right & Left UP & DownAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Microprocessor Control Indoor Unit Display SectionHeat Operation MSZ Cool OperationDRY Operation FAN d Operation MSYFuzzy control Auto Change Over ··· Auto Mode Operation MSZMode selection MSZ-A24 MSY-A24 Auto Vane OperationMSZ-A09/12/15/17 MSY-A15/17 Upward3 4 Swing 5 COOL/DRY HeatTimer Operation Program TimerEMERGENCY/TEST Operation Made in Japan
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MSY-A15NA, MSZ-A09NA, MSZ-A17NA, MSZ-A12NA, MSZ-A24NA specifications

Mitsubishi Electronics is a renowned name in the HVAC (heating, ventilation, and air conditioning) industry, known for innovative, efficient air conditioning solutions. The MSY-A17NA, MSY-A24NA, MSZ-A15NA, MSZ-A24NA, and MSZ-A12NA models exemplify this legacy, offering advanced features and cutting-edge technology. These models cater to various room sizes and requirements, providing comfortable and reliable climate control.

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