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Mitsubishi Electric PUHZ-SW50VHA User Manual

Mitsubishi Electric PUHZ-SW50VHA
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SERVICE MANUAL
R410A
Outdoor unit
[Model Name]
PUHZ-SW40VHA
PUHZ-SW50VHA
PUHZ-SW50VKA
[Service Ref.]
PUHZ-SW40VHA
PUHZ-SW40VHAR1
PUHZ-SW50VHA
PUHZ-SW50VHAR1
PUHZ-SW50VKA
PARTS CATALOG (OCB525)
CONTENTS
TECHNICAL CHANGES ····································2
1. REFERENCE MANUAL ·································3
2. SAFETY PRECAUTION ································· 4
3. FEATURES ····················································· 8
4. SPECIFICATIONS ·········································· 8
5. DATA ·····························································10
6. OUTLINES AND DIMENSIONS ··················· 12
7. WIRING DIAGRAM ······································14
8. WIRING SPECIFICATIONS ·························· 16
9.
REFRIGERANT SYSTEM DIAGRAM
·············17
10. TROUBLESHOOTING ·································19
11. DISASSEMBLY PROCEDURE ···················· 65
Revision:
•Added
PUHZ-SW50VKAand
PUHZ-SW50VKA-BSin
REVISEDEDITION-C.
•Somedescriptionshave
beenmodified.
Salt proof model
PUHZ-SW40VHA-BS
PUHZ-SW50VHA-BS
PUHZ-SW50VKA-BS
PUHZ-SW40VHA-BS
PUHZ-SW40VHAR1-BS
PUHZ-SW50VHA-BS
PUHZ-SW50VHAR1-BS
PUHZ-SW50VKA-BS
Note:
•Thismanualdescribes
servicedataoftheoutdoor
unitsonly.
•PleasevoidOCH525
REVISEDEDITION-B.
No. OCH525
REVISED EDITION-C
July 2015
SPLIT-TYPE,AIRTOWATERHEATPUMP
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Mitsubishi Electric PUHZ-SW50VHA Specifications

General IconGeneral
Heating Capacity16.0 kW
RefrigerantR410A
Dimensions (Outdoor Unit)943 x 950 x 330 mm
Weight (Outdoor Unit)72 kg
EER (Cooling)3.04 W/W
COP (Heating)4.0

Summary

TECHNICAL CHANGES

Service Reference and Function Updates

Details model service reference changes and the addition of an Energy Monitor function.

REFERENCE MANUAL

Indoor Unit Service Manual Listings

Lists indoor unit service manuals for various models with their corresponding manual numbers.

SAFETY PRECAUTIONS

General Safety Rules

Essential safety rule to disconnect power before accessing terminals.

R410A Refrigerant Handling Guidelines

Specific safety guidelines for R410A refrigerant, including piping preparation and tool usage.

Refrigerant Piping and Tool Safety

Precautions for reusing R22 pipes, pipe thickness, flare dimensions, and specific R410A tools.

MODEL SPECIFIC PRECAUTIONS

Salt Proof Type "-BS" Model Installation

Installation guidelines for salt-proof models to maintain performance, especially near coastal areas.

FEATURES

Chargeless System Explanation

Details the chargeless system and its advantages for installation and unit reliability.

DATA

Refrigerant Charge and Compressor Data

Information on refrigerant charge amounts based on piping length and compressor technical specifications.

WIRING SPECIFICATIONS

Field Electrical Wiring Guidelines

Power wiring specifications for outdoor units, including circuit rating and wire size requirements.

TROUBLESHOOTING

General Troubleshooting Guide

Summary of self-diagnosis check codes and actions for recurring or non-recurring troubles.

Self-Diagnosis Action Table

Detailed table linking check codes to specific faults and recommended service actions.

DISASSEMBLY PROCEDURE

Outdoor Unit Component Removal Steps

Step-by-step procedures for removing major components of the outdoor unit.

Component Removal Visual Aids

Visual guides illustrating the process of disassembling and removing various parts.

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