Mitsubishi Electric MXZ-2HA50VF - User Manual

Models
MXZ-2HA40VF
-
E1
,
ET1
,
E2
MXZ-2HA50VF
-
E1
,
ET1
,
E2
MXZ-3HA50VF
-
E1
,
ET1
,
E2
HFC
utilized
R32
SERVICE MANUAL
OUTDOOR UNIT
PARTS CATALOG (OBB828)
Indoor unit service manual
MSZ-HR•VF Series (OBH822)
CONTENTS
1. TECHNICAL CHANGES ······························3
2. SAFETY PRECAUTION ······························· 3
3. PART NAMES AND FUNCTIONS ················13
4. SPECIFICATION ······································ 14
5. NOISE CRITERIA CURVES ························17
6. OUTLINES AND DIMENSIONS ··················· 18
7. WIRING DIAGRAM ··································· 20
8. REFRIGERANT SYSTEM DIAGRAM ··········· 24
9. PERFORMANCE CURVES ························27
10. ACTUATOR CONTROL ····························· 36
11. SERVICE FUNCTIONS ······························ 37
12. TROUBLESHOOTING ······························· 41
13. DISASSEMBLY INSTRUCTIONS ·················66
MXZ-2HA40VF
MXZ-2HA50VF
Revision A:
• MXZ-2HA40/50VF-
E2
and
MXZ-3HA50VF-
E2
have been added.
OBB828 is void.
No. OBH828
REVISED EDITION-A

Summary

Safety Precautions

2-1. Always Observe for Safety

Before obtaining access to terminal, all supply circuits must be disconnected.

2-2. Cautions Related to New Refrigerant

Cautions for units utilizing refrigerant R32.

[1] Warning for service

Guidelines and warnings for servicing air conditioners.

[2] Cautions for service

Specific precautions to be taken during service operations.

[4] Cautions for Unit Using R32 Refrigerant

Important precautions when working with R32 refrigerant systems.

Specifications

MXZ-2 HA40 VF Model Specifications

MXZ-2 HA50 VF Model Specifications

MXZ-3 HA50 VF Model Specifications

Wiring Diagram

MXZ-2 HA40 VF;2 HA50 VF Wiring Diagrams

MXZ-3 HA50 VF Wiring Diagrams

Refrigerant System Diagram

MXZ-2 HA40 VF;2 HA50 VF Refrigerant Diagram

Diagram showing refrigerant flow and components for twin units.

MXZ-3 HA50 VF Refrigerant Diagram

Performance Curves

Cooling Capacity and Input Curves (MXZ-2 HA40 VF;50 VF)

Heating Capacity and Input Curves (MXZ-2 HA40 VF;50 VF)

Service Functions

Automatic Line Correcting Function

Troubleshooting

Troubleshooting Cautions and Failure Mode Recall

General safety, procedures, and memorizing abnormal conditions.

Troubleshooting Check Tables

Detailed tables linking symptoms, indications, conditions, and remedies.

Troubleshooting Flows and Component Checks

Step-by-step guides for diagnosing common issues and checking parts.

Disassembly Instructions

Component Removal Procedures

Compressor and Fan Motor Removal

Mitsubishi Electric MXZ-2HA50VF Specifications