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Mitsubishi Electric PURY-P400YHM-A User Manual

Mitsubishi Electric PURY-P400YHM-A
352 pages
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Service Handbook
AIR CONDITIONERS
Models
PURY-(E)P200, P250, (E)P300, P350, P400YHM-A
PURY-EP400, (E)P450, (E)P500, (E)P600YSHM-A
PURY-P650,P700,P750,P800YSHM-A

Table of Contents

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Mitsubishi Electric PURY-P400YHM-A Specifications

General IconGeneral
SeriesPURY
Cooling Capacity (kW)40.0
Heating Capacity (kW)45.0
RefrigerantR410A
Power Supply380-415V, 50Hz
Operating Temperature Range (Cooling)-5 to 46°C
Operating Temperature Range (Heating)-20 to 15.5°C

Summary

Service Handbook

AIR CONDITIONERS

Mitsubishi Electric Air Conditioners Service Manual.

Safety Precautions

Installation Safety

Guidelines for safe installation to prevent injury or unit damage.

Handling and Environment

Precautions for handling, modifications, and unusual environments.

Refrigerant Leak Handling

Actions to take in case of a refrigerant leak.

Electrical Safety

Requirements for electrical work and circuit protection.

Precautions for R410A Handling

Refrigerant Piping and Materials

Guidelines for selecting and preparing piping for R410A systems.

Refrigerant Charging and Handling

Proper procedures for charging and handling R410A refrigerant.

Before Unit Installation

Installation Location Precautions

Warnings about installing the unit in hazardous or unsuitable locations.

Installation and Electrical Work Precautions

Grounding and Wiring Safety

Proper grounding and wiring practices to prevent electrical hazards.

Before Test Run

Pre-Test Run Procedures

Essential steps before initiating the unit's test run.

Operation Restrictions

Prohibitions during operation to prevent damage or hazards.

I Read Before Servicing

II Restrictions

System Configuration Compatibility

Details on compatible indoor and outdoor unit combinations and capacities.

III Outdoor Unit Components

IV Remote Controller

Group and Interlock Settings

Procedures for setting up groups and interlocking units with LOSSNAY.

V Electrical Wiring Diagram

Outdoor Unit Wiring Diagram

Detailed electrical wiring diagram for the outdoor unit.

VI Refrigerant Circuit

VII Control

VII Control -11- Emergency Operation Mode

Problems with the Outdoor Unit

Causes and procedures for emergency operation due to outdoor unit issues.

VIII Test Run Mode

Pre-Test Run Checks

Essential items to check before performing a test run.

Refrigerant Amount Adjustment

Procedures for checking and adjusting refrigerant amount.

IX Troubleshooting

Error Code Lists

Comprehensive list of error codes and their definitions.

Troubleshooting Principal Parts

Step-by-step troubleshooting for key components like sensors and valves.

Refrigerant Leak Detection

Procedures for locating and addressing refrigerant leaks.

X LED Monitor Display on the Outdoor Unit Board

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