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Mitsubishi Electric PURY-P450YLM-A(1) User Manual

Mitsubishi Electric PURY-P450YLM-A(1)
434 pages
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AIR CONDITIONER
2015
Service Handbook
PURY-P200, P250, P300, P350, P400, P450, P500YLM-A(1)
PURY-P400, P450, P500, P550, P600, P650, P700, P750, P800, P850, P900YSLM-A(1)
PURY-EP200, EP250, EP300, EP350, EP400, EP450, EP500YLM-A
PURY-EP500, EP550, EP600, EP650, EP700, EP750, EP800, EP850, EP900YSLM-A
Model

Table of Contents

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Mitsubishi Electric PURY-P450YLM-A(1) Specifications

General IconGeneral
SeriesPURY-P
RefrigerantR410A
Sound Pressure Level (Outdoor Unit)62 dB(A)
Power Supply380-415V, 50Hz
Operating Temperature Range (Cooling)-5 to 46 °C
Operating Temperature Range (Heating)-15°C to 24°C

Summary

Safety Precautions

General Precautions

Essential safety precautions to be followed before installing or operating the unit.

Check Before Servicing

Preparation for Piping Work

Details on preparing piping for system installation, including materials and handling.

Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil

Guidance on handling piping materials, refrigerants, and oils, emphasizing safety and compatibility.

Working with Refrigerant Piping

Procedures for working with refrigerant piping, including brazing and testing.

Precautions for Wiring

Safety precautions and guidelines for electrical wiring work to prevent hazards.

Restrictions

System Configurations

Summarizes compatible indoor units for different outdoor units and system capacity limits.

Types and Maximum Allowable Length of Cables

Specifies cable types and maximum lengths allowed for transmission and remote controller wiring.

Restrictions on Refrigerant Pipes

Specifies restrictions on refrigerant pipe length, size, and BC controller connection methods.

Major Components, Their Functions and Refrigerant Circuits

External Appearance and Refrigerant Circuit Components of Outdoor Unit

Details the external appearance and lists the refrigerant circuit components of the outdoor unit.

Outdoor Unit Refrigerant Circuit Diagrams

Provides schematic diagrams illustrating the refrigerant circuits within the outdoor units.

Functions of the Major Components of Outdoor Unit

Describes the functions of the main components found in the outdoor unit.

Electrical Components and Wiring Diagrams

Outdoor Unit Electrical Wiring Diagrams

Presents the electrical wiring diagrams for the outdoor unit, showing connections between components.

Control

Outdoor Unit Control

Covers the overview, rotation control, initial control, and various operational modes of the outdoor unit.

Test Run

Read before Test Run

Outlines essential checks for refrigerant leaks, loose connections, and power supply before starting a test run.

Test Run Method

Step-by-step guide for performing test runs on the system using MA and ME remote controllers.

Operation Characteristics and Refrigerant Charge

Explains key operation characteristics and the importance of correct refrigerant charge for system performance.

Evaluating and Adjusting Refrigerant Charge

Guides on evaluating and adjusting refrigerant charge, including overcharge and undercharge symptoms.

Troubleshooting Using Error Codes

Troubleshooting Based on Observed Symptoms

Refrigerant Control Problems

Details problems related to refrigerant control, including capacity issues and operational anomalies.

Troubleshooting Inverter Problems

Provides solutions and troubleshooting steps for various inverter-related issues and component checks.

Measures for Refrigerant Leakage

Details procedures for identifying, repairing, and managing refrigerant leaks in the system.

LED Status Indicators on the Outdoor Unit Circuit Board

LED Status Indicators Table

Provides a comprehensive table detailing LED status indicators, their displays, and associated meanings.

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