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Mitsubishi Electric MUZ-GL15NA User Manual

Mitsubishi Electric MUZ-GL15NA
76 pages
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HFC
utilized
R410A
INDOOR UNIT
SERVICE MANUAL
No. OBH733
REVISED EDITION-J
Indoor unit service manual
MSZ-GL•NA, MSY-GL•NA Series (OBH732)
MUZ-GL18/24NA
MUZ-GL18/24NAH
MUY-GL18/24NA
PARTS CATALOG (OBB733)
OBH733 REVISED EDITION-H is void.
Revision J:
A warning when opening or closing the valve has
been added.
CONTENTS
1. TECHNICAL CHANGES ······························3
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ·····················7
5. WIRING DIAGRAM ·····································9
6. REFRIGERANT SYSTEM DIAGRAM ··········· 21
7. DATA······················································ 24
8. ACTUATOR CONTROL ····························· 39
9. SERVICE FUNCTIONS ······························ 40
10. TROUBLESHOOTING ······························· 41
11. DISASSEMBLY INSTRUCTIONS ················· 65
OUTDOOR UNIT
Models
MUZ-GL09NA
-
U1
,
U2
,
U8
MUZ-GL09NAH
-
U1
,
U2
,
U8
MUY-GL09NA
-
U1
,
U2
MUZ-GL12NA
-
U1
,
U2
MUZ-GL12NAH
-
U1
,
U2
MUY-GL12NA
-
U1
,
U2
MUZ-GL15NA
-
U1
,
U2
MUZ-GL15NAH
-
U1
,
U2
MUY-GL15NA
-
U1
,
U2
MUZ-GL18NA
-
U1
MUZ-GL18NAH
-
U1
MUY-GL18NA
-
U1
MUZ-GL24NA
-
U1
,
U2
MUZ-GL24NAH
-
U1
MUY-GL24NA
-
U1
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Mitsubishi Electric MUZ-GL15NA Specifications

General IconGeneral
CategoryAir Conditioner
ModelMUZ-GL15NA
TypeSplit System
Cooling Capacity15, 000 BTU/h
Heating Capacity16, 000 BTU/h
Voltage208/230V
RefrigerantR410A
Outdoor Noise Level50 dB(A)
Power Supply208/230V, 60Hz
EER (Cooling)11.7
Operating Temperature (Cooling)14° to 115° F

Summary

Safety and Refrigerant Handling

Preparation and Precautions for Repair

Steps for preparing and precautions during air conditioner repair.

Technical Specifications and Diagrams

Technical Changes and Part Identification

Details on model updates and identification of unit parts.

Unit Specifications

Technical data including capacity, power, and dimensions.

Outlines and Dimensions

Physical dimensions and required installation space.

Wiring Diagram

Electrical connection diagrams for various models.

Refrigerant System Diagram

Visual representation of the refrigerant circuit for models.

Refrigerant Piping and Charge Specifications

Max. piping length, height difference, and refrigerant charge.

Operation Data and Performance Curves

Standard operational data and cooling/heating performance curves.

Operation and Maintenance

Actuator Control and Sensor Relations

Control logic for actuators based on sensor readings.

Service Functions

Procedures for defrost and pre-heat control settings.

Troubleshooting and Diagnostics

Troubleshooting Overview and Cautions

General guidelines and safety for troubleshooting.

Failure Mode Recall Function

Procedure to recall and interpret error codes.

Troubleshooting Check Table

Table mapping symptoms to LED indications and remedies.

Troubleshooting Flowcharts

Step-by-step diagnostic flows for key components.

Test Point Diagram and Voltage Checks

Diagrams for checking electrical points and voltage values.

Disassembly Instructions

Model-Specific Disassembly Procedures

Step-by-step guides for disassembling various unit models.

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