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Mitsubishi Electric MU-A09WV User Manual

Mitsubishi Electric MU-A09WV
158 pages
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SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················6
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························8
4. INDOOR UNITS COMBINATION ·······················9
5. SPECIFICATION···············································10
6. NOISE CRITERIA CURVES···························· 17
7. OUTLINES AND DIMENSIONS ······················ 20
8. WIRING DIAGRAM ··········································25
9. REFRIGERANT SYSTEM DIAGRAM··············32
10. PERFORMANCE CURVES······························45
11. MICROPROCESSOR CONTROL·····················84
12. SERVICE FUNCTIONS···································102
13. TROUBLESHOOTING····································104
14. DISASSEMBLY INSTRUCTIONS···················129
15. PARTS LIST····················································144
16. OPTIONAL PARTS·········································157
Wireless type
Models
MSC-A07WV -
(
WH
)
· MU-A07WV -
MSC-A09WV -
(
WH
)
· MU-A09WV -
MSC-A12WV -
(
WH
)
· MU-A12WV -
MSC-A07WV -
(
WH
)
· MUH-A07WV -
MSC-A09WV -
(
WH
)
· MUH-A09WV -
MSC-A12WV -
(
WH
)
· MUH-A12WV -
Multi system type
Models
MSC-A07WV -
(
WH
)
· MUX-A10WV -
MSC-A09WV -
(
WH
)
· MUX-A19WV -
MSC-A12WV -
(
WH
)
· MUX-A20WV -
· MUX-A25WV -
· MUX-A26WV -
Inverter-controlled multi system Model
· MXZ-A18WV -
E1
E1
E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
MSC-A07WV -
MSC-A09WV -
MSC-A12WV -
E1
E1
E1
No. OB307
REVISED EDITION-A
HFC
utilized
R410A
SPLIT-TYPE, AIR CONDITIONERS
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Revision:
MXZ-A18WV - have been added.
MSC-A07/09/12WV - Part No.
.
have changed.
VARISTOR (NR11& NR12)
E02 336 385 E02 749 385
Please void OB307.
E1
E1
Indication of
model name
Remote
controller
OB307A1.qxp 03.2.19 3:56 PM Page 1

Table of Contents

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Mitsubishi Electric MU-A09WV Specifications

General IconGeneral
Cooling Capacity2.5 kW
Cooling Capacity (BTU)9, 000 BTU
Heating Capacity3.2 kW
Power Supply220-240 V, 50 Hz
RefrigerantR32
Air Flow (Indoor)510 m³/h

Summary

Technical Changes and R410A Refrigerant Information

Model Series Updates

Details changes and updates across MSC, MU, MUX, and MXZ model series.

R410A Refrigerant Introduction

Essential information on R410A refrigerant, including precautions and property comparison.

Unit Components and Specifications

Indoor and Outdoor Unit Parts Identification

Identifies key parts of the indoor and outdoor units, including filters, vanes, and panels.

Comprehensive Unit Specifications

Detailed technical specifications for indoor and outdoor units, covering electrical, mechanical, and refrigerant data.

System Diagrams, Compatibility, and Curves

Indoor/Outdoor Unit Compatibility

Lists valid combinations of indoor and outdoor units for multi-system configurations.

Refrigerant System and Wiring Diagrams

Illustrates refrigerant flow and electrical wiring for various unit configurations.

Performance Curves and Data

Graphs detailing unit capacity, input, low pressure, current, and noise levels.

Control Systems and Operation

Microprocessor Control Modes

Explains various control modes like COOL, DRY, HEAT, I FEEL CONTROL, TIMER, and FAN operations.

Inverter and Protection Controls

Details on inverter control, fan motor, vane control, and protection mechanisms like discharge temperature protection.

LEV and Defrosting Control

Procedures for LEV control, operational frequency, and heat defrosting control logic.

Troubleshooting and Disassembly

Troubleshooting Procedures and Checklists

Guides for diagnosing and resolving common issues, including check tables and flowcharts.

Disassembly Instructions (Indoor Unit)

Step-by-step procedures for disassembling indoor unit components like panels, PC boards, and motors.

Disassembly Instructions (Outdoor Unit)

Step-by-step procedures for disassembling outdoor unit components like cabinets, motors, and compressors.

Parts List

Indoor Unit Parts List

List of structural, electrical, and functional parts for indoor units with part numbers.

Outdoor Unit Parts List

List of structural, electrical, and functional parts for outdoor units with part numbers.

Accessories and Optional Parts

List of accessories and optional parts, including filters and different-diameter pipes.

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