Mitsubishi Electronics MSZ-GA22VA Operating Procedure Photos, Removing the electrical box

Page 25

OPERATING PROCEDURE

PHOTOS

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

Photo 2

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 V.A. clamp, and then the

 

indoor/outdoor connecting wire. (See Photo 2.)

 

(3)

Remove the switch holder from the electrical cover.

Screws of

 

(See Photo 3.)

(4)

Remove the screw of the electrical cover, and then the

the terminal

 

electrical cover. (See Photo 3.)

block cover

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

 

(See Photo 4.)

 

 

(6)

Unhook the power monitor receiver P.C. board holder from

 

 

(7)

the catch. (See Photo 4.)

Drain hose

Screw of V.A. clamp

Open the rear cover of the power monitor receiver P.C.

 

 

 

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

 

 

 

board.

Photo 3

 

(8)

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

 

 

 

(9)Pull the electronic control P.C. board slightly toward you from the electrical box, and disconnect TAB3 and all the connectors on the electronic control P.C. board.

(LD101 and LD105 are direct-mounted to the electronic control P.C. board.)

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

box.

Switch holder

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

 

from the electrical box. (See Photo 4.)

 

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

Screw of the

electrical box.

electrical cover.

 

(13)Remove the screws of the terminal block cover, and then the terminal block cover and the terminal block holder. (See Photo 2.)

(14)Remove the terminal block by sliding it.

 

 

Photo 4

 

 

Ground wires

3. Removing the electrical box

Fan motor

(1)

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

connector (CN211)

 

the corner box.

Connector of the

(2)

Remove the screw of V.A. clamp, and then the indoor/

interlock switch(Fan)

 

outdoor connecting wire. (See Photo 2.)

(CN1R1)

(3)

Remove the switch holder and the electrical cover.

Indoor coil thermistor

 

(See Photo 3.)

 

connector (CN112)

(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

Vane motor

 

indoor coil thermistor connector <CN112>, the vane motor

connector (CN151)

 

connector <CN151>, the connector of the interlock switch

 

 

(Fan) of the horizontal vane <CN1R1>.

 

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

Power monitor receiver P.C. board holder

25

Image 25
Contents MSZ-GA22VA MSZ-GA25VA MSZ-GA35VA ContentsGeneralized stepping motor Technical ChangesIndoor Unit MSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1 Part Names and FunctionsMSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1 Accessories Indoor UnitMSZ-GA22VA E1 MSZ-GA25VA E1Specifications and rating conditions of main electric parts SpecificationWhen outdoor unit is MXZ type MSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1MSZ-GA22VA E1 MSZ-GA35VA E1 MSZ-GA25VA E1 Noise Criteria CurvesMSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1 Indoor Unit Outlines and DimensionsUnit mm Required space Indoor unitRefrigerant System Diagram Wiring DiagramUnit mm How to modify the remote controller P.C. board Service FunctionsRemote controller model KM05B J1 J2Before troubleshooting, check the following TroubleshootingLead wiring Housing point OperationInformation for Multi System AIR Conditioner OFF Failure mode recall functionIndoor unit failure mode table Start Indoor unit operates. Outdoor unit doesnt operate Instruction of troubleshootingIndicates abnormalities Troubleshooting check tableMXZ type Right lamp flash Trouble criterion of main partsCheck of indoor fan motor Troubleshooting flowCheck of remote controller and receiver P.C. board Indoor electronic control P.C.Board LED How to check mis-wiring and serial signal errorCheck of installation of the horizontal vane Yes Electromagnetic noise enters into TV sets or radiosPower monitor receiver P.C. board Test point diagram and voltageMSZ-GA22VA E1 MSZ-GA25VA E1 Indoor electronic control P.C. boardRemoving the panel Photo Disassembly InstructionsRemoving the electrical box Operating Procedure PhotosRemoving the indoor fan motor and the line flow Photo Removing the horizontal vane motor unit PhotoFan Motor bandAccessory and Remote Controller Parts ListIndoor Unit Structural Parts Controller Indoor Unit Structural PartsIndoor Unit Heat Exchanger Indoor Unit Electrical Parts and Functional PartsInterlock Switchfan Nozzle AssemblySwitch Holder Bearing MountOptional Parts AIR Cleaning Filter ANTI-ALLERGY Enzyme FilterMSZ-GA25VA MSZ-GA35VAPage Specifications subject to change without notice
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MSZ-GA25VA, MSZ-GA35VA, MSZ-GA22VA specifications

The Mitsubishi Electronics MSZ-GA series encompasses a range of wall-mounted split systems, including the MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA models, designed to provide efficient heating and cooling solutions for a variety of environments. Renowned for their advanced technology and user-friendly features, these air conditioning units are a perfect match for residential and light commercial spaces.

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