Mitsubishi Electric PUY-SP48YKA 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-SP48YKA Specifications

General

Brand	Mitsubishi Electric
Model	PUY-SP48YKA
Category	Air Conditioner
Language	English

Summary

SAFETY PRECAUTION

Cautions Related to New Refrigerant

Cautions for units utilizing refrigerant R410A, focusing on preparation and repair steps.

Preparation before Repair Service

Details required tools, protectors, ventilation, and power disconnection for safe repair.

Precautions During Repair Service

Safety measures during repair, like avoiding wet hands and touching live parts.

Refrigerant Piping Work Cautions

R410A Piping Work Guidelines

Guidelines for R410A refrigerant piping, emphasizing exclusive tools and specific dimensions.

Pipe Thickness Specifications for R410A

Specifies required pipe thickness for R410A compared to R22, with a table of dimensions.

Flare Cutting and Nut Dimensions for R410A

Details flare cutting and flare nut dimensions for R410A to ensure airtightness and strength.

Technical Data

Refilling Refrigerant Charge Data

Table showing refrigerant charge (kg) required based on piping length for specific models.

Compressor Winding Resistance Data

Wiring Specifications

Field Electrical Wiring Details

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

Wiring Installation Precautions

Refrigerant System Diagram

Refrigerant Circuit Schematic

Schematic illustrating the refrigerant flow, components like compressor, heat exchanger, and thermistors.