Mitsubishi Electric PUH-P71YHA User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES
.................................
3
2. REFERENCE MANUAL
..................................
4
3. SAFETY PRECAUTION
..................................
5
4. FEATURES
......................................................
8
5. SPECIFICATIONS
...........................................
9
6. DATA
.............................................................
11
7. OUTLINES AND DIMENSIONS
....................
15
8. WIRING DIAGRAM
.......................................
19
9. WIRING SPECIFICATIONS
..........................
23
10. REFRIGERANT SYSTEM DIAGRAM
...............
28
11. TROUBLESHOOTING
...................................
30
12. FUNCTION SETTING
....................................
66
13. DISASSEMBLY PROCEDURE
.....................
73
14. PARTS LIST
..................................................
82
15. RoHS PARTS LIST
.......................................
88
No.OC379
REVISED EDITION-F
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
SPLIT-TYPE, AIR CONDITIONERS
R410A
April 2012
Outdoor unit
[Model names]
PU-P71VHA PUH-P71VHA
PU-P71YHA PUH-P71YHA
PU-P100VHA PUH-P100VHA
PU-P100YHA PUH-P100YHA
PU-P125YHA PUH-P125YHA
PU-P140YHA PUH-P140YHA
PU(H)-P71VHA(1).UK PU(H)-P71VHA#2.UK
PU(H)-P71YHA
(1).UK PU(H)-P71YHA#2.UK
PU(H)-P100VHA
(1).UK PU(H)-P100VHA#2.UK
PU(H)-P100YHA
(1).UK PU(H)-P100YHA#2.UK
Note:
• This manual describes only
service data of the outdoor
units.
• RoHS compliant products
have <G> mark on the spec
nameplate.
• For servicing of RoHS com-
pliant products, refer to the
RoHS Parts List.
Revision:
• PU(H)-P125/140YHAR4.UK
have been added in
REVISED EDITION-F.
• Some descriptions have
been modified.
• Please void OC379
REVISED EDITION-E.
[Service Ref.]
Service Ref. is on page 2.

Mitsubishi Electric PUH-P71YHA Specifications

General

Brand	Mitsubishi Electric
Model	PUH-P71YHA
Category	Air Conditioner
Language	English

Summary

Technical Changes

Reference Manual

Indoor Unit Service Manuals

Lists service manuals for indoor units.

Technical Data Book

Provides technical data for various models.

Safety Precautions

Always Observe for Safety

General safety instructions before accessing terminals.

Cautions Related to New Refrigerant

Cautions for units utilizing R410A refrigerant.

Features

Specifications

Data

Refilling Refrigerant Charge (R410A : kg)

Refilling refrigerant charge data by piping length.

Compressor Technical Data

Compressor technical data including winding resistance.

Outlines and Dimensions

Wiring Diagram

Wiring Specifications

Field Electrical Wiring (Power Wiring Specifications)

Field electrical wiring specifications for power.

Separate Indoor Unit/ Outdoor Unit Power Supplies

Power supply patterns for separate indoor/outdoor units.

Indoor – Outdoor Connecting Cable

Specifications for indoor-outdoor connecting cables.

M-NET Wiring Method

Method for M-NET wiring, including grounding and noise.

Refrigerant System Diagram

Troubleshooting

Troubleshooting Summary

Summary of error displays and service actions.

Check Points Under Test Run

Points to check before performing a test run.

How to Proceed Self-Diagnosis

Procedures for self-diagnosis and error code retrieval.

Self-Diagnosis Action Table

Action table for self-diagnosis error codes.

Troubleshooting of Problems

Table of common problems and their solutions.

How to Check the Parts

Procedures for checking internal parts.

How to Check the Components

Checking thermistors with resistance charts.

Test Point Diagram

Diagram showing test points on the outdoor controller board.

Emergency Operation

Procedures for emergency operation.

Function of Switches, Connectors and Jumpers

Details on switches, connectors, and jumpers.

Function Setting

Unit Function Setting by the Remote Controller

Setting unit functions using the wired remote controller.

Disassembly Procedure

Parts List (non-RoHS compliant)

RoHS Parts List