Mitsubishi Electric CITY MULTI PFFY-P12NRMU-E User Manual

TECHNICAL & SERVICE MANUAL
Air-Conditioners For Building Application
<Indoor unit>
2014
Models
PFFY-P06NRMU-E,PFFY-P08NRMU-E
PFFY-P12NRMU-E,PFFY-P15NRMU-E
PFFY-P18NRMU-E,PFFY-P24NRMU-E
PFFY-P06NEMU-E,PFFY-P08NEMU-E
PFFY-P12NEMU-E,PFFY-P15NEMU-E
PFFY-P18NEMU-E,PFFY-P24NEMU-E
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 ····11
7. TROUBLE SHOOTING·······················12
8. DISASSEMBLY PROCEDURE···········
17
Floor Standing Type
Series PFFY
For use with the R410A & R22
Exposed type
Concealed type

Mitsubishi Electric CITY MULTI PFFY-P12NRMU-E Specifications

General

Brand	Mitsubishi Electric
Model	CITY MULTI PFFY-P12NRMU-E
Category	Air Conditioner
Language	English

Summary

Series PFFY Floor Standing Type

Safety Precautions

Installation and Electrical Safety

Important safety points for installation and electrical work.

R410A Refrigerant Handling

Guidelines for handling R410A refrigerant and related system components.

Specifications

General Unit Specifications

Provides detailed technical specifications for the indoor units.

Electrical Parts Specifications

Lists electrical components and their specifications for the indoor units.

Wiring and System Diagrams

Wiring Diagram

Illustrates the electrical connections and wiring within the unit.

Control Box Internal Wiring

Refrigerant System Diagram

Depicts the refrigerant circuit and its main components.

Troubleshooting

Component Checking Procedures

Guides on checking various internal parts for proper function using a tester.

Linear Expansion Valve Operation

Linear Expansion Valve Troubleshooting

Details troubleshooting for common issues with the linear expansion valve.

Configuration and Settings

Indoor Unit Address Setting

Disassembly Procedures

Control Box Removal (Exposed Type)

Thermistor Removal (Gas and Liquid Piping)

Thermistor Removal (Intake Air)

Fan and Fan Motor Removal

Heat Exchanger Removal Procedure