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Mitsubishi Electric MUZ-GS24NAH-U1 User Manual

Mitsubishi Electric MUZ-GS24NAH-U1
110 pages
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PARTS CATALOG (OBB875)
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ··················· 10
5. WIRING DIAGRAM ··································· 12
6. REFRIGERANT SYSTEM DIAGRAM ··········· 21
7. DATA ······················································26
8. ACTUATOR CONTROL ····························· 57
9. SERVICE FUNCTIONS ······························58
10. TROUBLESHOOTING ······························· 59
11. DISASSEMBLY INSTRUCTIONS ················· 87
HFC
utilized
R410A
OUTDOOR UNIT
SERVICE MANUAL
No. OBH875
REVISED EDITION-B
Indoor unit service manual
MSZ-GS•NA, MSY-GS•NA Series (OBH874)
OBH875 REVISED EDITION-A is void.
Revision B:
• MUZ-GS09/12/15/18/24NA -
U1
,
MUZ-GS09/12/15/18/24NAH -
U1
,
MUZ-GS09/12/15/18/24NAHZ -
U1
,
MUY-GS09/12/15/18/24NA -
U1
,
MUZ-GS30/36NA2 -
U1
, MUZ-GS30/36NAH2 -
U1
and MUY-GS30/36NA2 -
U1
have been added.
MUZ-GS18/24/30/36NA MUZ-GS18/24/30/36NAH
MUZ-GS18/24NAHZ MUY-GS18/24/30/36NA
MUZ-GS30/36NA2 MUZ-GS30/36NAH2
MUY-GS30/36NA2
Models
MUZ-GS09NA -
U1
MUZ-GS18NAH -
U1
MUY-GS09NA -
U1
MUZ-GS12NA -
U1
MUZ-GS24NAH -
U1
MUY-GS12NA -
U1
MUZ-GS15NA -
U1
MUZ-GS30NAH -
U1
MUY-GS15NA -
U1
MUZ-GS18NA -
U1
MUZ-GS30NAH2 -
U1
MUY-GS18NA -
U1
MUZ-GS24NA -
U1
MUZ-GS36NAH -
U1
MUY-GS24NA -
U1
MUZ-GS30NA -
U1
MUZ-GS36NAH2 -
U1
MUY-GS30NA -
U1
MUZ-GS30NA2 -
U1
MUZ-GS09NAHZ -
U1
MUY-GS30NA2 -
U1
MUZ-GS36NA -
U1
MUZ-GS12NAHZ -
U1
MUY-GS36NA -
U1
MUZ-GS36NA2 -
U1
MUZ-GS15NAHZ -
U1
MUY-GS36NA2 -
U1
MUZ-GS09NAH -
U1
MUZ-GS18NAHZ -
U1
MUZ-GS12NAH -
U1
MUZ-GS24NAHZ -
U1
MUZ-GS15NAH -
U1
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Mitsubishi Electric MUZ-GS24NAH-U1 Specifications

General IconGeneral
RefrigerantR410A
Compressor TypeInverter
Hertz60 Hz
Cooling Capacity24, 000 BTU/h
Voltage208/230V
PhaseSingle
Operating Temperature (Cooling)14°F to 115°F

Summary

TECHNICAL CHANGES

SPECIFICATION

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

ACTUATOR CONTROL

SERVICE FUNCTIONS

TROUBLESHOOTING

Troubleshooting Cautions and Procedures

General safety, preparation, and procedural advice for troubleshooting.

Failure Mode Recall Function

Explains how to recall and interpret failure codes from the unit's memory.

Detailed Outdoor Unit Failure Mode Recall

Flow chart for diagnosing outdoor unit specific failure modes.

Outdoor Unit Failure Mode Recall Table

Table correlating LED blinking patterns to specific failure modes and remedies.

Troubleshooting Check Table

Comprehensive table linking symptoms, LED indications, abnormal points, and remedies.

Main Parts Troubleshooting Criteria

Resistance and voltage checks for key components like thermistors and compressor.

Troubleshooting Flowcharts

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

DISASSEMBLY INSTRUCTIONS

Removing the Cabinet (MUZ-GS09/12/15NA)

Step-by-step guide to removing the outer cabinet for small capacity models.

Removing the Cabinet (MUZ-GS18/24NA)

Cabinet removal procedure for medium capacity outdoor units.

Removing the Inverter Assembly and P.C. board (MUZ-GS18/24NA)

Steps to remove the inverter assembly and P.C. board for specific models.

Removing Inverter and Fuse P.C. Boards (Other Models)

Procedure for removing inverter and fuse P.C. boards for other models.

Removing Thermistors and Fan Motor (MUZ-GS18/24NA)

Instructions for removing temperature sensors and the outdoor fan motor.

Removing Compressor and 4-way Valve (MUZ-GS18/24NA)

Steps for removing the compressor and 4-way valve assembly.

Removing the Cabinet (MUZ-GS30/36NA)

Cabinet removal procedure for larger capacity outdoor units.

Removing Inverter and Fuse P.C. Boards (MUZ-GS30/36NA)

Steps to remove inverter and fuse P.C. boards for larger capacity models.

Removing Thermistors and Fan Motor (MUZ-GS30/36NA)

Procedure to remove temperature sensors and outdoor fan motor for larger units.

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