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Mitsubishi Electric MSZ-GA22VA - E1 User Manual

Mitsubishi Electric MSZ-GA22VA - E1
36 pages
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CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM················8
8. SERVICE FUNCTIONS ······································9
9. TROUBLESHOOTING······································10
10. DISASSEMBLY INSTRUCTIONS·····················24
11. PARTS LIST······················································27
12. RoHS PARTS LIST···········································31
13. OPTIONAL PARTS···········································34
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS Parts List.
SERVICE MANUAL
Wireless type
Models
MSZ-GA22VA -
MSZ-GA22VA -
MSZ-GA22VA -
MSZ-GA25VA -
MSZ-GA25VA -
MSZ-GA25VA -
MSZ-GA35VA -
MSZ-GA35VA -
MSZ-GA35VA -
E3
E2
E1
E3
E2
E1
E3
E2
E1
No. OB378
REVISED EDITION-C
INDOOR UNIT
Outdoor unit service manual
MUZ-GA·VA Series (OB379)
MXZ-A·VA Series (OB377)
MXZ-8A140VA1 (OC316)
Revision C:
• 3.SPECIFICATION has been corrected.
Please void OB378 REVISED EDITION-B.
OB378C--1.qxp 07.3.30 8:35 AM Page 1
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Mitsubishi Electric MSZ-GA22VA - E1 Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMSZ-GA22VA - E1
CategoryAir Conditioner
LanguageEnglish

Summary

1. TECHNICAL CHANGES

2. PART NAMES AND FUNCTIONS

Indoor Unit Components Overview

Identifies and illustrates the main parts of the indoor unit.

3. ACCESSORIES AND REMOTE CONTROLLER

Remote Controller Operation and Features

Explains the functions, buttons, and operation of the remote controller.

4. SPECIFICATION

Indoor Unit Performance Data

Details electrical data, dimensions, and performance metrics for indoor units.

5. NOISE CRITERIA CURVES

Sound Level Characteristics

Presents octave band sound pressure levels for different fan speeds and functions.

6. OUTLINES AND DIMENSIONS

Indoor Unit Dimensions and Installation Space

Provides detailed measurements and required clearances for indoor unit installation.

7. WIRING DIAGRAM

Indoor Unit Wiring Schematic

Illustrates the electrical connections within the indoor unit.

8. REFRIGERANT SYSTEM DIAGRAM

Refrigerant Flow Diagram

Shows the path of refrigerant in cooling and heating modes.

9. SERVICE FUNCTIONS

Timer Short Mode

Explains how to shorten timer settings for service purposes.

PC Board Modification for Individual Operation

Details how to modify the P.C. board for multi-unit control.

Auto Restart Function

Describes the unit's behavior after a power failure.

10. TROUBLESHOOTING

Troubleshooting Cautions

Provides essential safety and preparatory steps before troubleshooting.

Troubleshooting Procedures and Battery Replacement

Outlines diagnostic steps and how to replace the remote controller batteries.

Failure Mode Recall Function

Details how to recall and diagnose memorized failure modes.

Troubleshooting Flowcharts and Tables

Visual guides and tables for diagnosing unit issues based on symptoms.

Test Point Diagram and Voltage References

Provides diagrams and voltage references for electronic component testing.

11. DISASSEMBLY INSTRUCTIONS

Panel and Electrical Box Removal

Step-by-step guides for removing the unit's panel and electrical box.

Motor and Fan Removal Procedures

Instructions for disassembling the vane motor, fan motor, and line flow fan.

12. PARTS LIST (non-RoHS compliant)

Indoor Unit Parts Identification

Lists and diagrams structural, electrical, and heat exchanger parts.

13. RoHS PARTS LIST (RoHS compliant)

RoHS Structural Parts and Accessories

Lists structural, accessory, and controller parts, highlighting RoHS compliance.

RoHS Electrical Parts and Heat Exchanger

Lists electrical and heat exchanger parts, highlighting RoHS compliance.

14. OPTIONAL PARTS

Air Cleaning Filter and Quick Clean Kit

Information on optional filters and cleaning kits for the unit.

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