Mitsubishi Electric Series PDFY User Manual

TECHNICAL & SERVICE MANUAL
Air-Conditioners For Building Application
<Indoor unit>
PDFY-P20VM-A,PDFY-P63VM-A
PDFY-P25VM-A,PDFY-P71VM-A
PDFY-P32VM-A,PDFY-P80VM-A
PDFY-P40VM-A,PDFY-P100VM-A
PDFY-P50VM-A,PDFY-P125VM-A
2001
Models
Ceiling Concealed Built-in
Series PDFY
CONTENTS
SAFETY PRECAUTIONS ·························1
1. FEATURES············································3
2. PART NAMES AND FUNCTIONS ········4
3. SPECIFICATION ···································6
4. OUTLINES AND DIMENSIONS············8
5. WIRING DIAGRAM ·····························10
6. REFRIGERANT SYSTEM DIAGRAM ····12
7.TROUBLE SHOOTING························13
8. DISASSEMBLY PROCEDURE···········18
For use with the R407C & R22

Mitsubishi Electric Series PDFY Specifications

General

Brand	Mitsubishi Electric
Model	Series PDFY
Category	Air Conditioner
Language	English

Summary

SAFETY PRECAUTIONS

Before Installation and Electric Work

Crucial steps before starting installation and electrical work.

General Installation and Handling Warnings

Important safety warnings for installation and handling procedures.

Precautions for R407C Refrigerant

R407C Refrigerant Handling and System Precautions

PART NAMES AND FUNCTIONS

SPECIFICATIONS

General Unit Specifications

Electrical Components Specifications

WIRING DIAGRAM

Wiring Diagram (Models PDFY-P20-P80VM-A)

Wiring Diagram (Models PDFY-P100-P125VM-A)

REFRIGERANT SYSTEM DIAGRAM

TROUBLE SHOOTING

Component Checking Procedures

Guides on how to test various components for faults.

Thermistor Characteristics and LEV Operation

LEV Operation and Troubleshooting

DISASSEMBLY PROCEDURE

Control Box Disassembly Procedure

Step-by-step guide to safely remove and disassemble the control box.

Thermistor Disassembly (Liquid & Intake)

Drainpan Disassembly Procedure

Thermistor Disassembly (Gas Piping)

Fan and Fan Motor Disassembly Procedure

Heat Exchanger Disassembly Procedure