Mitsubishi Electric PUY-SP42YKA User Manual

SERVICE MANUAL
No.OCH644
SPLIT-TYPE AIR CONDITIONERS
R410A
November 2017
Outdoor unit
[Model Name]
PUY-SP42VKA
PUY-SP48VKA
PUY-SP36YKA
PUY-SP42YKA
PUY-SP48YKA
[Service Ref.]
PUY-SP42VKA.TH(-T/-D/-N)
PUY-SP48VKA.TH(-T/-D/-N)
PUY-SP36YKA.TH(-T/-D/-N)
PUY-SP42YKA.TH(-T/-D/-N)
PUY-SP48YKA.TH(-T/-D/-N)
PARTS CATALOG (OCB644)
CONTENTS
1. REFERENCE MANUAL ································· 2
2. SAFETY PRECAUTION ································· 2
3. SPECIFICATIONS ·········································· 6
4. DATA ······························································· 7
5. OUTLINES AND DIMENSIONS ··················· 10
6. WIRING DIAGRAM ······································ 11
7. WIRING SPECIFICATIONS ·························· 13
8.
REFRIGERANT SYSTEM DIAGRAM ············· 18
9. TROUBLESHOOTING ································· 20
10. FUNCTION SETTING ··································· 77
11.
MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ····89
12. EASY MAINTENANCE FUNCTION ············· 99
13. DISASSEMBLY PROCEDURE ··················· 103
Revision:
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Mitsubishi Electric PUY-SP42YKA Specifications

General

Brand	Mitsubishi Electric
Model	PUY-SP42YKA
Category	Air Conditioner
Language	English

Summary

Safety Precaution

Cautions Related to New Refrigerant

Cautions for units utilizing refrigerant R410A, focusing on new refrigerant handling.

Service Tools

Precautions When Reusing Existing R22 Refrigerant Pipes

Flowchart and guidelines for reusing existing R22 refrigerant pipes for R410A systems.

Cautions for Refrigerant Piping Work

Thickness of Pipes

Specifies required pipe thickness for R410A refrigerant systems.

Dimensions of Flare Cutting and Flare Nut

Details specific dimensions for flare cutting and nuts for R410A compatibility.

Tools for R410A

Lists exclusive tools required for R410A refrigerant work and compatibility with other refrigerants.

Specifications

Data

Refilling Refrigerant Charge (R410A : kg)

Table detailing refrigerant charge amounts based on piping length for various models.

Compressor Technical Data

Provides winding resistance data for the compressor at 20°C.

Standard Operation Data

Outlines and Dimensions

Wiring Diagram

M-NET Adapter

Details the M-NET adapter connection and symbols for communication and power.

Model Select

Explains switch positions for model selection for different units.

Wiring Specifications

Field Electrical Wiring (Power Wiring Specifications)

Details power wiring specifications for outdoor unit models, including circuit ratings and wire sizes.

1:1 System Electrical Wiring

Illustrates the electrical wiring configuration for a 1:1 system between indoor and outdoor units.

Refrigerant System Diagram