Mitsubishi Electric PEFY-P15VMS1(L)-E User Manual

Air-Conditioners
TECHNICAL & SERVICE MANUAL
Models
PEFY-P15VMS1(L)-E, PEFY-P40VMS1(L)-E
PEFY-P20VMS1(L)-E, PEFY-P50VMS1(L)-E
PEFY-P25VMS1(L)-E, PEFY-P63VMS1(L)-E
PEFY-P32VMS1(L)-E
For use with R410A, R407C, & R22
2007

Mitsubishi Electric PEFY-P15VMS1(L)-E Specifications

General

Brand	Mitsubishi Electric
Model	PEFY-P15VMS1(L)-E
Category	Air Conditioner
Language	English

Summary

Safety Precautions

General Safety Instructions

Covers crucial warnings and cautions for installation and electrical work.

Precautions for handling units for use with R410A

R410A Specific Handling Guidelines

Details necessary precautions for handling R410A refrigerant and related materials.

Specifications

General Unit Specifications

Provides detailed specifications including dimensions, weight, fan, and pipe sizes.

Electrical Component Specifications

Wiring Diagram

Internal Wiring Diagram

Illustrates the internal electrical connections and component layout within the control box.

Refrigerant System Diagram

Refrigerant Circuit Components and Flow

Details the refrigerant circuit, including components like expansion valves and thermistors.

Troubleshooting

Component Check Methods

Outlines procedures to check thermistors, fan motors, and linear expansion valves.

Linear Expansion Valve (LEV) Operation

LEV Operation Troubleshooting

Addresses troubleshooting for LEV circuit failures, locking, and abnormal noise.

Drain Mechanism and Float Switch Checks

DC Fan Motor Troubleshooting

Provides steps for diagnosing and resolving issues with the indoor unit fan motor.

Address Switch Setting

Voltage Test Points on Control Board

Identifies key test points for voltage measurements on the indoor unit's control board.

Dipswitch Settings (Factory)

Capacity Code and Model Settings

Address Setting (Rotary Switches)