Mitsubishi Electric PUHZ-RP140VHA User Manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. REFERENCE MANUAL··································2
2. SAFETY PRECAUTION··································3
3. FEATURES ·····················································7
4. SPECIFICATIONS···········································8
5. DATA ·····························································10
6. OUTLINES AND DIMENSIONS····················15
7. WIRING DIAGRAM·······································18
8. WIRING SPECIFICATIONS ··························21
9. REFRIGERANT SYSTEM DIAGRAM ··············26
10. TROUBLESHOOTING ··································29
11. FUNCTION SETTING····································85
12. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ············91
13. DISASSEMBLY PROCEDURE ···················101
14. PARTS LIST ················································123
No.OC334
R410A
June 2005
Outdoor unit
[model names]
PUHZ-RP35VHA
PUHZ-RP50VHA
PUHZ-RP60VHA
PUHZ-RP71VHA
PUHZ-RP100VHA
PUHZ-RP125VHA
PUHZ-RP140VHA
PUHZ-RP100YHA
PUHZ-RP125YHA
PUHZ-RP140YHA
[Service Ref.]
PUHZ-RP35VHA
PUHZ-RP50VHA
PUHZ-RP60VHA
PUHZ-RP71VHA
PUHZ-RP100VHA
PUHZ-RP125VHA
PUHZ-RP140VHA
PUHZ-RP100YHA
PUHZ-RP125YHA
PUHZ-RP140YHA
• This manual describes only
service data of the outdoor
units.
PUHZ-RP60VHA
PUHZ-RP71VHA
OC334-1.qxp 05.5.26 6:09 PM Page 1

Mitsubishi Electric PUHZ-RP140VHA Specifications

General

Brand	Mitsubishi Electric
Model	PUHZ-RP140VHA
Category	Air Conditioner
Language	English

Summary

REFERENCE MANUAL

INDOOR UNIT’S SERVICE MANUAL

Lists service manuals for various indoor units.

TECHNICAL DATA BOOK

Provides technical data book information.

SAFETY PRECAUTION

CAUTIONS RELATED TO NEW REFRIGERANT

Details safety precautions when using R410A refrigerant.

CHANGED POINT

Discusses changes and precautions when reusing existing R22 refrigerant pipes.

FEATURES

CHARGELESS SYSTEM

Explains the system with pre-charged refrigerant for piping length at shipment.

SPECIFICATIONS

STANDARD OPERATION DATA

Presents standard operation data for different unit models.

DATA

REFILLING REFRIGERANT CHARGE (R410A : kg)

Provides data on refrigerant charge amounts based on piping length.

COMPRESSOR TECHNICAL DATA

Lists technical data for compressors, including winding resistance.

NOISE CRITERION CURVES

Shows noise criterion curves for various outdoor units at different frequencies.

OUTLINES AND DIMENSIONS

Minimum installation space for outdoor unit

Illustrates minimum required installation space around outdoor units.

WIRING DIAGRAM

WIRING SPECIFICATIONS

FIELD ELECTRICAL WIRING (power wiring specifications)

Specifies field electrical wiring requirements and circuit ratings for outdoor units.

SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES

Details connection patterns for separate indoor and outdoor unit power supplies.

INDOOR – OUTDOOR CONNECTING CABLE

Specifies requirements for indoor-outdoor connecting cables, including length and wire size.

M-NET WIRING METHOD

Provides guidelines for M-NET wiring, including precautions for electromagnetic noise.

REFRIGERANT SYSTEM DIAGRAM

TROUBLESHOOTING

TEST RUN AND PRELIMINARY CHECKS

Covers checkpoints before test runs and procedures for performing test runs.

SELF-DIAGNOSIS AND ERROR CODE INTERPRETATION

Explains self-diagnosis procedures, error codes, and how to interpret system displays and indicators.

COMPONENT AND SYSTEM DIAGNOSTICS

Details methods for checking parts, components, switches, and performing emergency operations.

COMMUNICATION AND WIRING ISSUES

Addresses troubleshooting for M-NET communication errors and wiring problems.

FUNCTION SETTING

UNIT FUNCTION SETTING BY REMOTE CONTROLLER

Details how to set various unit functions using the wired remote controller.

FUNCTION SELECTION VIA WIRELESS REMOTE CONTROLLER

Guide for selecting functions using a wireless remote controller, including mode and setting adjustments.

REMOTE CONTROLLER FUNCTION SELECTION MODES

Explains how to change settings like language, function limits, and display options via remote controller.

MONITORING OPERATION DATA

ACCESSING AND MONITORING OPERATION DATA

Instructions on how to access and monitor operation data using the remote controller's maintenance mode.

REQUEST CODE LIST FOR DATA MONITORING

A comprehensive list of request codes and their corresponding data for monitoring operation parameters.

DISASSEMBLY PROCEDURE

PARTS LIST

STRUCTURAL PARTS

Lists structural components for PUHZ-RP35VHA and PUHZ-RP50VHA models, including part numbers and quantities.

FUNCTIONAL PARTS

Lists functional components for PUHZ-RP35VHA and PUHZ-RP50VHA models, including part numbers and quantities.