Mitsubishi Electronics service manual MSZ-GA22VA MSZ-GA25VA MSZ-GA35VA, Contents

Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OB378

SERVICE MANUAL

Wireless type

Models

MSZ-GA22VA MSZ-GA25VA MSZ-GA35VA

-E1

-E1

-E1

(WH)

(WH)

(WH)

CONTENTS

Indication of model name MSZ-GA22VA - E1 MSZ-GA25VA - E1 MSZ-GA35VA - E1

1.TECHNICAL CHANGES ··············

2.PART NAMES AND FUNCTIONS··········

3.SPECIFICATION··················

4.NOISE CRITERIA CURVES ·············

5.OUTLINES AND DIMENSIONS ···········

6.WIRING DIAGRAM ················

7.REFRIGERANT SYSTEM DIAGRAM ········

8.SERVICE FUNCTIONS ··············

9.TROUBLESHOOTING···············

10.DISASSEMBLY INSTRUCTIONS··········

11.PARTS LIST···················

12.OPTIONAL PARTS················

NOTE:

This service manual describes technical data of the indoor units.

•As for outdoor units MUZ-GA25VA- E1 , MUZ-GA35VA- E1 , MUZ-GA25VAH- E1 and MUZ-GA35VAH- E1 , refer to service manual OB379.

•As for outdoor units MXZ-3A54VA- E1 , MXZ-4A71VA- E1 and MXZ-4A80VA- E1 , refer to service manual OB377.

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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.

One of the standout features of the MSZ-GA series is the innovative INVERTER technology. This system intelligently adjusts the compressor speed, ensuring that the units operate at optimal efficiency. By maintaining a consistent temperature without constant on/off cycling, this technology significantly reduces energy consumption, leading to lower electricity bills and a reduced carbon footprint.

Another major aspect of these models is their powerful yet quiet operation. The units are designed with advanced noise-reduction technology, allowing them to function at low sound levels, making them ideal for bedrooms and living rooms where disturbances should be kept to a minimum. With noise levels as low as 19 dB(A), users can enjoy a peaceful indoor environment even while the system is running.

Additionally, the MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA models feature an elegant and compact design, which easily integrates into any interior decor. Their sleek and minimalist aesthetics do not compromise on performance, making them a favorite among homeowners and designers alike.

The series also comes with a user-friendly remote control, enabling easy temperature adjustments and settings from across the room. For added convenience, these models include a programmable timer feature, allowing users to set the system to operate according to their schedules. This flexibility not only enhances comfort but also optimizes energy usage.

Moreover, the MSZ-GA series incorporates a powerful air filtration system that helps improve indoor air quality. Featuring a washable anti-allergy enzyme filter, these units capture dust and allergens, making the air cleaner and healthier for occupants.

With a focus on energy efficiency, quiet operation, and advanced air purification, the Mitsubishi Electronics MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA represent an excellent choice for anyone seeking reliable and effective climate control solutions. Whether heating or cooling, these models ensure maximum comfort while minimizing energy usage and environmental impact.