Mitsubishi Electric CITY MULTI PDFY-P80VM-A 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 CITY MULTI PDFY-P80VM-A Specifications

General

Model	PDFY-P80VM-A
Series	CITY MULTI
Cooling Capacity	8.0 kW
Heating Capacity	9.0 kW
Refrigerant	R410A
Power Supply	220-240V, 50Hz
Dimensions (Indoor Unit)	1100 x 450 x 320 mm

Summary

Safety Precautions

Installation and Electric Work Safety

Critical safety guidelines for unit installation and electrical connections.

R407C Refrigerant Handling Precautions

Specific safety measures for working with R407C refrigerant and associated piping.

Technical Specifications

General Unit Specifications

Table detailing electrical, physical, and performance specifications.

Electrical Parts Specifications

Wiring Diagrams

Wiring Diagram for PDFY-P20 to P80VM-A

Wiring Diagram for PDFY-P100 and P125VM-A

Troubleshooting and Component Checks

Component Resistance Checks

Procedures for checking thermistors, transformer, LEV, and fan motor resistance.

Troubleshooting Symptoms and Countermeasures

Lists common symptoms and their corresponding check points and countermeasures.

Disassembly Procedures

Control Box Disassembly

Thermistor Removal (Liquid, Intake Air, Gas)

Fan Motor and Component Removal

Heat Exchanger Removal