Table of Contents
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SERVICE MANUAL
Wireless type
Models
MSH-18RV -
MSH-24RV -
MSH-30RV -
MSH-18RV -
E1
MSH-24RV -
E1
•Refer to the Service Manual OB185 REVISED EDITION C when MSH-18RV-
with MXZ-32NV-
or MXZ-32NV-
E1
•Refer to the Service Manual OB227 REVISED EDITION-B when MSH-18RV-
with MXZ-32RV-
as multi system units.
E1
•Refer to the Service Manual OB254 when MSH-18RV-
multi system units.
· MUH-18RV -
( WH )
E1
· MUH-18RV -
· MUH-24RV -
( WH )
E1
· MUH-30RV -
( WH )
E1
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································6
4. NOISE CRITERIA CURVES ·······························8
5. OUTLINES AND DIMENSIONS ······················ 10
6. WIRING DIAGRAM ··········································13
7. REFRIGERANT SYSTEM DIAGRAM ··············17
8. PERFORMANCE CURVES ······························20
9. MICROPROCESSOR CONTROL ····················36
10. SERVICE FUNCTIONS·····································50
11. TROUBLESHOOTING ······································52
12. DISASSEMBLY INSTRUCTIONS·····················71
13. PARTS LIST······················································79
14. OPTIONAL PARTS···········································88
as multi system units.
E2
is connected with MXZ-32SV-
E1
Revision:
MUH-18RV-
has been added.
E2
MUH-18RV-
MUH-18RV-
E1
•Path of outdoor heat exchanger has changed.
is connected
E1
is connected
E1
E2
No. OB272
REVISED EDITION-A
E1
E2
E1
E1
as
E1
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Table of Contents
Related Manuals for Mitsubishi MSH-24RV
Summarization of Contents
Service Manual Overview
Technical Changes
Details modifications made to the models, including remote controller and path changes.
Part Names and Functions
Identifies and explains the components of the indoor and outdoor units.
Unit Specifications and Characteristics
Specifications
Lists detailed technical data, capacities, and electrical information for each model.
Noise Criteria Curves
Presents sound pressure level data across frequencies for different operating conditions.
Outlines and Dimensions
Provides physical measurements and installation space requirements for units.
System Diagrams and Performance Data
Wiring Diagram
Shows the electrical connections and component layout for the air conditioning system.
Refrigerant System Diagram
Illustrates the refrigerant flow and key components in cooling and heating modes.
Performance Curves
Illustrates operational characteristics like capacity and input based on temperature and conditions.
Operation Modes and Control Systems
Microprocessor Control
Explains the logic and features controlled by the unit's microprocessor, including "I FEEL CONTROL".
Service Functions
Covers special modes like compulsory defrost and timer short modes for servicing.
Troubleshooting and Maintenance
Troubleshooting
Provides guidance on identifying and resolving operational issues using flowcharts and check tables.
Disassembly Instructions
Details the step-by-step process for disassembling indoor and outdoor unit components.
Parts Identification and Options
Parts List
Lists all structural, functional, electrical, and accessory parts with part numbers and quantities.
Optional Parts
Describes optional accessories such as air cleaning and deodorizing filters.
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