Mitsubishi Electric MSZ-HR35VF-ET1 User Manual

Models
MSZ-HR25VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
,
ER3
,
ET3
MSZ-HR35VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
,
ER3
,
ET3
MSZ-HR42VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
,
ER3
,
ET3
MSZ-HR50VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
,
ER3
,
ET3
MSZ-HR60VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
MSZ-HR71VF -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
,
E3
MSZ-HR25VFK -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
MSZ-HR35VFK -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
MSZ-HR42VFK -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
MSZ-HR50VFK -
E1
,
ER1
,
ET1
,
E2
,
ER2
,
ET2
MSZ-HR60VFK -
E1
,
ER1
,
ET1
MSZ-HR71VFK -
E1
,
ER1
,
ET1
INDOOR UNIT
Outdoor unit service manual
MUZ-HR∙VF Series (OBH823)
MXZ-HA∙VF Series (OBH828)
PARTS CATALOG (OBB822)
CONTENTS
1. TECHNICAL CHANGES ······························3
2. PART NAMES AND FUNCTIONS ··················4
3. SPECIFICATION ········································5
4. NOISE CRITERIA CURVES ··························7
5. OUTLINES AND DIMENSIONS ·····················9
6. WIRING DIAGRAM ··································· 11
7. REFRIGERANT SYSTEM DIAGRAM ··········· 18
8. SERVICE FUNCTIONS ······························ 19
9. MICROPROCESSOR CONTROL ················· 22
10. TROUBLESHOOTING ······························· 26
11. DISASSEMBLY INSTRUCTIONS ················· 45
SERVICE MANUAL
MSZ-HR25VF
OBH822 REVISED EDITION-G is void.
Revision H:
• MSZ-HR25/35/42/50VFK -
E2
,
ER2
,
ET2
and MSZ-HR25/35/42/50VF -
E3
,
ER3
,
ET3
have been added.
No. OBH822
REVISED EDITION-H

Mitsubishi Electric MSZ-HR35VF-ET1 Specifications

General

Heating Capacity	3.6 kW
Refrigerant	R32
Indoor Unit Weight	9 kg
Power Supply	220-240 V, 50 Hz
Outdoor Unit Noise Level	50 dB(A)

Summary

Specification

Wiring Diagram

Refrigerant System Diagram

Service Functions

Timer Short Mode Settings

PC Board Modification for Multi-Unit Operation

Microprocessor Control

Emergency and Test Operation Procedures

Troubleshooting

Troubleshooting Precautions

Important safety and procedural notes before starting troubleshooting.

Failure Mode Recall Functionality

Recalls and displays memorized abnormal conditions for diagnosis.

Troubleshooting Flowcharts and Guidance

Step-by-step diagnostic flowcharts for various unit issues.

Troubleshooting Check Table

A table correlating operation indicator patterns with faults and remedies.

Main Parts Troubleshooting Criteria

Criteria for checking specific components like thermistors and fan motors.

Troubleshooting Flow for Fan Motor and P.C. Board

Detailed flowcharts for diagnosing indoor fan motor and P.C. board issues.

Test Point Diagrams and Voltage Specifications

Diagrams showing test points and expected voltages on control boards for diagnosis.

Disassembly Instructions

Disassembly for HR25-50VF Models

Disassembly for HR25-50VFK Models

Disassembly for HR60-71VF Models

Disassembly for HR60-71VFK Models