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Mitsubishi Electric PUMY-P48NKMU3 User Manual

Mitsubishi Electric PUMY-P48NKMU3
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TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT
No. OCH733
HFC
utilized
R410A
February 2020
Note:
This service manual
describes technical data of
the outdoor units only.
<Outdoor unit>
[Model Name]
Model name
indication
PARTS CATALOG (OCB733)
PUMY-P36NKMU3
PUMY-P48NKMU3
PUMY-P60NKMU3
PUMY-HP36NKMU1
PUMY-HP48NKMU1
PUMY-P36NKMU3-BS
PUMY-P48NKMU3-BS
PUMY-P60NKMU3-BS
Salt proof model
PUMY-P36NKMU3
PUMY-P48NKMU3
PUMY-P60NKMU3
PUMY-HP36NKMU1
PUMY-HP48NKMU1
PUMY-P36NKMU3-BS
PUMY-P48NKMU3-BS
PUMY-P60NKMU3-BS
[Service Ref.]
CONTENTS
1. SAFETY PRECAUTION
.....................................
2
2. OVERVIEW OF UNITS
.......................................
5
3. SPECIFICATIONS
............................................
10
4. DATA
.................................................................
12
5. OUTLINES AND DIMENSIONS
.......................
32
6. WIRING DIAGRAM
...........................................
33
7.
NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
.......
36
8. TROUBLESHOOTING
......................................
47
9. ELECTRICAL WIRING
...................................
125
10. REFRIGERANT PIPING TASKS
....................
130
11. DISASSEMBLY PROCEDURE
.......................
137
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

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Mitsubishi Electric PUMY-P48NKMU3 Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPUMY-P48NKMU3
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions for Mitsubishi Electric Air Conditioners

General Safety Guidelines

Essential safety practices for accessing and servicing equipment.

R410A Refrigerant Handling Cautions

Key precautions for using R410A refrigerant, including necessary tools and procedures.

Mitsubishi Electric Unit Specifications

Outdoor Unit Specifications

Detailed technical data for outdoor units, including power, capacity, dimensions, and refrigerant.

Outdoor Unit Specifications (HP Models)

Technical specifications for PUMY-HP series outdoor units, including power and capacity.

Mitsubishi Electric Unit Data and Selection

Cooling/Heating Unit Selection Flowchart

Flowchart for determining appropriate indoor and outdoor unit capacity for cooling/heating.

Capacity Calculation Flowchart (Over 100%)

Flowchart for selecting units when total indoor capacity exceeds outdoor capacity.

Mitsubishi Electric Unit Wiring Diagrams

Troubleshooting Mitsubishi Electric Air Conditioners

Pre-Test Run Checks

Ensures all installation and wiring are complete before initiating a test run.

Common Error Code Diagnostics

Guide to identifying and resolving common error codes detected by the system.

Electrical Wiring for Mitsubishi Electric Systems

Refrigerant Piping System for Mitsubishi Electric

Additional Refrigerant Calculation

Procedure for calculating and charging additional refrigerant based on piping and capacity.

Refrigerant Leakage Precautions

Precautions against refrigerant leakage and calculating concentration limits.

Disassembly Procedures for Outdoor Units

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