Mitsubishi Electric PUHZ-HRP100YHA User Manual

SERVICE MANUAL
No.OCH425
REVISED EDITION-D
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
R410A
October 2011
PUHZ-HRP71VHA
PUHZ-HRP100VHA
PUHZ-HRP100YHA
PUHZ-HRP125YHA
Note:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products
have <G> mark on the spec
name plate.
PARTS CATALOG (OCB425)
Outdoor unit
[Model names]
PUHZ-HRP71VHA
PUHZ-HRP100VHA
PUHZ-HRP100YHA
PUHZ-HRP125YHA
PUHZ-HRP71VHA2
PUHZ-HRP100VHA2
PUHZ-HRP100YHA2
PUHZ-HRP125YHA2
[Service Ref.]
PUHZ-HRP71VHA
PUHZ-HRP100VHA
PUHZ-HRP100YHA
PUHZ-HRP125YHA
PUHZ-HRP71VHA2
PUHZ-HRP71VHA2R1
PUHZ-HRP100VHA2
PUHZ-HRP100VHA2R1
PUHZ-HRP100VHA2R2
PUHZ-HRP100YHA2
PUHZ-HRP100YHA2R1
PUHZ-HRP125YHA2
PUHZ-HRP125YHA2R1
CONTENTS
1. TECHNICAL CHANGES ·······························2
2. REFERENCE MANUAL ································2
3. SAFETY PRECAUTION ·······························3
4. FEATURES ···················································7
5. SPECIFICATIONS ········································8
6. DATA ·····························································9
7. OUTLINES AND DIMENSIONS··················12
8. WIRING DIAGRAM ·····································14
9. WIRING SPECIFICATIONS ························20
10. REFRIGERANT SYSTEM DIAGRAM ········25
11. TROUBLESHOOTING ································27
12. FUNCTION SETTING ·································85
13. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ····92
14. EASY MAINTENANCE FUNCTION ·········102
15. DISASSEMBLY PROCEDURE ·················107
Revision:
• "11-10 FUNCTION OF
SWITCHES, CONNECTORS
AND JUMPERS" has been
modified in REVISED
EDITION-D. (See page 80)
• Some descriptions have been
modified.
• Please void OCH425
REVISED EDITION-C.

Mitsubishi Electric PUHZ-HRP100YHA Specifications

General

Brand	Mitsubishi Electric
Model	PUHZ-HRP100YHA
Category	Air Conditioner
Language	English

Summary

Technical Changes

Reference Manuals

Indoor Unit Service Manual Reference

Lists service manuals for various indoor units with their respective manual numbers.

Safety Precautions

R410A Refrigerant Safety Cautions

Specific safety precautions and procedures for working with R410A refrigerant, including tool usage.

Reusing R22 Pipes with R410A Safety

Guidelines and precautions for reusing R22 refrigerant pipes with new R410A units, covering procedures and checks.

Product Features

Chargeless Refrigerant System

Explains the pre-charged refrigerant system for simplified installation and improved reliability.

Refrigerant Leakage Detection Functionality

Notes the unit's capability to detect refrigerant leaks during long-term operation.

Unit Specifications

Technical Data

Refrigerant Charge Data (R410A)

Provides data on refrigerant charge amounts based on piping length for R410A.

Compressor Technical Data

Details technical specifications for the compressor, including winding resistance.

Unit Dimensions and Layout

Piping and Wiring Connection Directions

Explains the directions from which piping and wiring connections can be made to the unit.

Wiring Diagrams

M-NET Adapter Wiring Details

Shows the wiring connections and components for the M-NET adapter.

Wiring Specifications

Field Electrical Wiring Specifications

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

M-NET Wiring Method and Precautions

Provides guidelines and precautions for M-NET wiring, including grounding and cable types.

Refrigerant System Diagram

Refrigerant Recovery (Pump Down) Procedure

Describes the procedure for recovering refrigerant using the pump-down method.

Troubleshooting Guide

General Troubleshooting Overview

Provides a summary of error code displays and general actions for troubleshooting.

Self-Diagnosis Procedures

Guides on how to access and interpret self-diagnosis results from the remote controller.

Self-Diagnosis Action Table

A table detailing error codes, detected points, cases, and judgment/action steps for troubleshooting.

Checking Unit Parts

Details the procedure for checking various electrical components by measuring resistance.

Linear Expansion Valve Operation

Describes the operation summary and output signals of the linear expansion valve.

Linear Expansion Valve Coil Attachment and Detachment

Provides instructions on how to attach and detach the coil of the linear expansion valve.

Emergency Operation

Explains how to perform emergency operation in case of specific unit failures.

Test Point Diagram

Illustrates test points on the outdoor controller circuit board for voltage measurements.

Switches, Connectors, and Jumpers Functions

Details the functions of various switches, connectors, and jumpers on the circuit boards.

Function Settings

Unit Function Setting via Remote Controller

Guides on setting unit functions using the remote controller, covering various settings like power recovery and temperature detection.

Remote Controller Function Selection

Explains how to change remote controller settings like language, operation limits, and mode selection.

Operation Data Monitoring

Monitoring Operation Data Procedure

Explains how to access and view operation data through the remote controller's maintenance mode.

Request Code List for Monitoring

A list of request codes and their corresponding data descriptions for monitoring.

Easy Maintenance Functions

Maintenance Mode Operation

Details how to enter and operate the maintenance mode for checking unit data.

Refrigerant Leakage Detection Initial Settings

Explains the initial settings required to enable the refrigerant leakage detection function.

Disassembly Procedures

Service Panel and Top Panel Removal

Instructions for removing the service and top panels to access internal components.

Compressor Removal

Detailed procedure for removing the compressor, including refrigerant recovery.

Power Receiver Removal

Steps for removing the power receiver, including refrigerant recovery.