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Mitsubishi Electric MUZ-AY35VG User Manual

Mitsubishi Electric MUZ-AY35VG
66 pages
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No. OBH931
PARTS CATALOG (OBB931)
SERVICE MANUAL
OUTDOOR UNIT
CONTENTS
1. TECHNICAL CHANGES ······························3
2. SERVICING PRECAUTIONS FOR UNITS
USING REFRIGERANT R32 ························· 4
3. PART NAMES AND FUNCTIONS ··················6
4. SPECIFICATION ········································7
5. NOISE CRITERIA CURVES ··························9
6. OUTLINES AND DIMENSIONS ··················· 10
7. WIRING DIAGRAM ··································· 12
8. REFRIGERANT SYSTEM DIAGRAM ··········· 18
9. PERFORMANCE CURVES ·························20
10. ACTUATOR CONTROL ····························· 36
11. SERVICE FUNCTIONS ······························37
12. TROUBLESHOOTING ······························· 38
13. DISASSEMBLY INSTRUCTIONS ·················58
Models
MUZ-AY25VG
-
E1
,
ET1
,
ER1
MUZ-AY35VG
-
E1
,
ET1
,
ER1
MUZ-AY42VG
-
E1
,
ET1
,
ER1
MUZ-AY50VG
-
E1
,
ET1
,
ER1
MUZ-AY25VGH
-
SC1
MUZ-AY35VGH
-
SC1
MUZ-AY42VGH
-
SC1
MUZ-AY50VGH
-
SC1
MUZ-AY25VG
MUZ-AY35VG
MUZ-AY42VG
MUZ-AY25VGH
MUZ-AY35VGH
MUZ-AY42VGH
Indoor unit service manual
MSZ-AY•VG, VGK, VGKP Series (OBH930, 932)
HFC
utilized
R32

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Mitsubishi Electric MUZ-AY35VG Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUZ-AY35VG
CategoryAir Conditioner
LanguageEnglish

Summary

Servicing Precautions for Units Using Refrigerant R32

Information on Servicing

Details on safety checks and procedures for working with flammable refrigerants.

Repairs to Sealed Components

Guidelines for servicing sealed refrigeration components safely.

Repair to Intrinsically Safe Components

Procedures for working on intrinsically safe components in flammable atmospheres.

Cabling Checks

Ensuring cabling is protected from adverse environmental effects and aging.

Detection of Flammable Refrigerants

Prohibits the use of open flames for refrigerant leak detection.

Leak Detection Methods

Guidelines for using electronic leak detectors with flammable refrigerants.

Removal and Evacuation Procedures

Steps for safe removal and evacuation of refrigerant from the system.

Charging Procedures

Additional requirements for charging refrigerant systems safely.

Specification

Wiring Diagram

Refrigerant System Diagram

Performance Curves

Actuator Control

Service Functions

Troubleshooting

Troubleshooting Cautions

Important safety precautions and checks before troubleshooting.

Troubleshooting Check Table

Table correlating symptoms, LED indications, and remedies.

Troubleshooting Criteria for Main Parts

Methods and criteria for checking key components like thermistors and motors.

Troubleshooting Flows

Step-by-step diagnostic flowcharts for various components and systems.

Test Point Diagram and Voltage Checks

Diagrams and procedures for checking voltages and test points on the inverter P.C. board.

Disassembly Instructions

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