Mitsubishi Electric MSZ-GE50VA-A1 User Manual

CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 3
3. SPECIFICATION ················································ 5
4. NOISE CRITERIA CURVES ······························ 9
5. OUTLINES AND DIMENSIONS ·······················11
6. WIRING DIAGRAM ·········································· 12
7. REFRIGERANT SYSTEM DIAGRAM ············· 14
8. SERVICE FUNCTIONS ··································· 15
9. MICROPROCESSOR CONTROL ··················· 17
10. TROUBLESHOOTING ····································· 25
11. DISASSEMBLY INSTRUCTIONS ···················· 45
SPLIT-TYPE AIR CONDITIONERS
SERVICE MANUAL
INDOOR UNIT
PARTS CATALOG (OBB531)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
Models
MSZ-GE22VA
-
A1
MSZ-GE50VA
-
A1
MSZ-GE22VAD
-
A1
MSZ-GE50VA2
-
A1
MSZ-GE25VA
-
A1
MSZ-GE50VAD
-
A1
MSZ-GE25VAD
-
A1
MSZ-GE60VA
-
A1
MSZ-GE33VA
-
A1
MSZ-GE60VAD
-
A1
MSZ-GE35VA
-
A1
MSZ-GE71VA
-
A1
MSZ-GE35VA2
-
A1
MSZ-GE71VAD
-
A1
MSZ-GE35VAD
-
A1
MSZ-GE80VA
-
A1
MSZ-GE42VA
-
A1
MSZ-GE80VA2
-
A1
MSZ-GE42VAD
-
A1
MSZ-GE80VAD
-
A1
No. OBH531
REVISED EDITION-E
Please void OBH531 REVISED EDITION-D.
MSZ-GE22VA
MSZ-GE22VAD
MSZ-GE25VA
MSZ-GE25VAD
MSZ-GE33VA
MSZ-GE35VA
MSZ-GE35VA2
MSZ-GE35VAD
MSZ-GE42VA
MSZ-GE42VAD
MSZ-GE50VA
MSZ-GE50VA2
MSZ-GE50VAD
Revision E:
• MSZ-GE22VAD-
A1
has been added.
Outdoor unit service manual
MUZ-GE·VA Series (OBH532)
MXZ-A·VA Series (OB447)
MXZ-8A140A (OC316)
MXZ-B•VA (OBH567)

Mitsubishi Electric MSZ-GE50VA-A1 Specifications

General

Cooling Capacity	5.0 kW
Power Supply	220-240 V, 50 Hz
Weight (Outdoor Unit)	35 kg
Outdoor Unit Weight	35 kg
Type	Split System
Outdoor Unit Dimensions (HxWxD)	550 x 780 x 285 mm
Power Source	220-240V

Summary

Technical Changes

Part Names and Functions

Specification

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Service Functions

8-1. Timer Short Mode

Shortens timer setting time for service operations.

8-2. P.C. Board Modification for Individual Operation

Modifies P.C. boards for multi-unit operation.

8-3. Auto Restart Function

Manages automatic unit restart after power interruption.

Microprocessor Control

9-1. Cool Operation

Details the operation procedure for cooling mode.

9-2. Dry Operation

Details the operation procedure for dry mode.

9-3. Heat Operation

Details the operation procedure for heat mode.

9-4. Fan Operation

Details operation procedure for fan-only mode.

9-5. Auto Change Over Auto Mode Operation

Explains automatic switching between COOL and HEAT modes.

9-6. Auto Vane Operation

Controls horizontal vane movement and modes.

9-7. Timer Operation

Details how to set and release timers.

9-8. Weekly Timer Operation

Allows setting weekly ON/OFF timers for operations.

9-9. i-save Operation

Allows saving and recalling custom settings.

9-10. Emergency/Test Operation

Provides procedures for emergency and test operations.

9-11. 3-Minute Time Delay Operation

Explains the compressor protection time delay.

Troubleshooting

10-1. Cautions on Troubleshooting

Safety and general precautions before troubleshooting.

10-2. Failure Mode Recall Function

Recalls and displays memorized abnormal conditions.

10-3. Instruction of Troubleshooting

Provides a flowchart for diagnosing issues.

10-4. Troubleshooting Check Table

Lists symptoms, conditions, and remedies for faults.

10-6. Troubleshooting Flow (Fan Motor)

Step-by-step guide for fan motor issues.

10-7. Test Point Diagram and Voltage

Shows test points and voltages for diagnostics.

B Check of Remote Controller and Indoor Electronic Control P.C. Board

Checks remote control and indoor PC board for issues.

C Check of Indoor P.C. Board and Indoor Fan Motor

Diagnoses issues with PC boards and fan motor.

D How to Check Miswiring and Serial Signal Error

Guides on diagnosing miswiring and serial signal errors.

E Check of Installation of the Horizontal Vane

Checks correct installation of the horizontal vane.

F Electromagnetic Noise Enters into TV Sets or Radios

Addresses issues with electromagnetic noise interference.

Disassembly Instructions

1. Removing the Panel

Step-by-step guide for removing the front panel.

2. Removing the Indoor Electronic Control P.C. Board and the Room Temperature Thermistor

Procedures for removing the main control board and thermistor.

3. Remove the Indoor Power P.C. Board, the Indoor Terminal P.C. Board, and the Electrical Box

Steps to remove power board, terminal board, and electrical box.

4. Removing the Nozzle Assembly

Instructions for removing the nozzle assembly.

5. Removing the Vertical Vane Motor Unit

Steps for removing the vertical vane motor.

6. Removing the Horizontal Vane Motor

Steps for removing the horizontal vane motor.

7. Removing the Water Cut, the Indoor Fan Motor, the Indoor Coil Thermistor, and the Line Flow Fan

Guide to remove water cut, fan motor, thermistor, and fan.

2. Removing the Indoor Electronic Control P.C. Board, the Power Monitor Receiver SW P.C. Board and the Indoor Terminal P.C. Board

Steps to remove control board, monitor board, terminal board.

3. Removing the Indoor Electrical Box

Procedures for removing the indoor electrical box.

4. Removing the Nozzle Assembly

Instructions for removing the nozzle assembly.

5. Removing the Vertical Vane Motor Unit

Steps for removing the vertical vane motor.

6. Removing the Horizontal Vane Motor

Steps for removing the horizontal vane motor.