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Mitsubishi Electric MUH-09RV User Manual

Mitsubishi Electric MUH-09RV
186 pages
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SERVICE MANUAL
SPLIT-TYPE,AIR CONDITIONERS
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················4
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························7
4. INDOOR UNITS COMBINATION ·······················8
5. SPECIFICATION···············································13
6. NOISE CRITERIA CURVES···························· 19
7. OUTLINES AND DIMENSIONS ······················ 22
8. WIRING DIAGRAM ··········································28
9. REFRIGERANT SYSTEM DIAGRAM··············35
10. PERFORMANCE CURVES······························46
11. MICROPROCESSOR CONTROL···················102
12. SERVICE FUNCTIONS···································120
13. TROUBLESHOOTING····································122
14. DISASSEMBLY INSTRUCTIONS···················148
15. PARTS LIST····················································166
16. OPTIONAL PARTS·········································184
Wireless type
Models
MSC-07RV -
(
WH
)
· MU-07RV -
MSC-09RV -
(
WH
)
· MU-09RV -
MSC-12RV -
(
WH
)
· MU-12RV -
MSC-07RV -
(
WH
)
· MUH-07RV -
MSC-09RV -
(
WH
)
· MUH-09RV -
MSC-12RV -
(
WH
)
· MUH-12RV -
Multi system type
MSC-07RV -
(
WH
)
· MUX-10RV -
MSC-09RV -
(
WH
)
· MUX-18RV -
MSC-12RV -
(
WH
)
· MUX-24RV -
Inverter controlled multi system type
· MXZ-18RV -
· MXZ-32RV -
E1
E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
E1E1
No. OB227
REVISED EDITION-B
MSC-07RV -
MSC-09RV -
MSC-12RV -
E1
E1
E1
Revision:
MUX-10/18/24RV - has been added.
MXZ-18/32RV - has been added.
Noise criteria curves has been added.
Performance data has been added.
Specification has been partially modified.
Refrigerant system diagram has been partially
modified.
• Please void OB227 REVISED EDITION-A
E1
E1
NOTE: (Only MXZ-32RV - )
This manual describes technical data of MSC
type indoor unit .
For other indoor unit refer to the service manuals
No. OB229 REVISED EDITION-A of correspond-
ing models.
E1

Table of Contents

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Mitsubishi Electric MUH-09RV Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUH-09RV
CategoryAir Conditioner
LanguageEnglish

Summary

Technical Changes

Part Names and Functions

Indoor Unit Components

Details of the indoor unit's components and their functions, including filters and vanes.

Outdoor Unit Components

Details of the outdoor unit's components and their functions, including air inlet/outlet and piping.

Remote Controller

Explanation of the wireless remote controller's buttons, display, and operation modes.

Indoor/Outdoor Correspondence Table

Indoor Units Combination

Specifications

Indoor Unit Specifications

Technical specifications for indoor units including power supply, airflow, and motor details.

Outdoor Unit Specifications

Technical specifications for outdoor units including capacity, power, compressor, and fan motor.

Noise Criteria Curves

Outlines and Dimensions

Indoor Unit Dimensions

Mechanical dimensions and installation clearances for indoor units.

Wireless Remote Controller Dimensions

Dimensions of the wireless remote controller.

Outdoor Unit Dimensions

Wiring Diagrams

Indoor Unit Wiring Diagram

Electrical schematic for the indoor unit's wiring connections.

Outdoor Unit Wiring Diagram

Electrical schematics for outdoor units (MUH, MXZ series).

Refrigerant System Diagrams

Performance Curves

Capacity and Input Curves

Graphs showing cooling/heating capacity and input based on temperatures.

Outdoor Low Pressure and Unit Current (Cool Operation)

Performance curves for outdoor low pressure and current during cooling.

Capacity and Input Curves (Single Unit Combinations)

Performance curves for single indoor/outdoor unit combinations.

Frequency Performance Curves

Performance curves related to compressor operational frequency.

Detailed Performance Data

Microprocessor Control

Remote Controller and Indoor Unit Indicators

Explanation of remote controller functions and indoor unit indicators.

Operational Modes and Features

Detailed descriptions of COOL, DRY, FAN, HEAT, 'I FEEL CONTROL', timers, and emergency operations.

Inverter Multi System Control Logic

System organization, LEV control, operational frequency, protection, and sensors/actuators.

Service Functions

Defrosting Functions and Settings

Service procedures for compulsory defrosting and changing defrost settings.

Timer Short Mode and P.C. Board Modification

Service adjustments for timer modes and remote controller P.C. board modification.

Unit Type and Auto Restart Settings

Configuration for MU/MUH type switchover and auto-restart function.

Troubleshooting

Troubleshooting Preparation and Flow Charts

Safety precautions, preparation steps, and diagnostic flowcharts for common issues.

Troubleshooting Check Tables

Tables detailing symptoms, detection methods, and check points for indoor and outdoor units.

Disassembly Instructions

Indoor Unit Disassembly

Step-by-step instructions for disassembling the indoor unit.

Outdoor Unit Disassembly

Instructions for removing the cabinet and electrical parts of MU outdoor units.

Parts List

Indoor Unit Structural Parts

List of structural components for indoor units with part numbers.

Indoor Unit Electrical Parts

List of electrical components for indoor units with part numbers.

Outdoor Unit Structural Parts

List of structural components for MU outdoor units with part numbers.

Outdoor Unit Functional & Electrical Parts

List of functional and electrical parts for MU outdoor units.

Remote Controller and Accessories

List of remote controller and related accessory parts.

Optional Parts

Air Filters

Description and replacement information for air cleaning and deodorizing filters.

Piping and Connectors

Specifications for optional different-diameter pipes and connections.

Outlet Guide

Information on optional outlet guides for changing air discharge direction.

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