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Mitsubishi Electric CITY MULTI PURY-P234TGMU-A User Manual

Mitsubishi Electric CITY MULTI PURY-P234TGMU-A
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Models PUHY-P72, P96, P108, P126, P144TGMU-A
PUHY-P168, P192, P204, P216, P234TGMU-A
PURY-P72, P96, P108, P126, P144TGMU-A
PURY-P168, P192, P204, P216, P234TGMU-A
Service Handbook
AIR CONDITIONERS CITY MULTI
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Service Handbook PUHY-P72, P96, P108, P126, P144TGMU-A
PUHY-P168, P192, P204, P216, P234TGMU-A
PURY-P72, P96, P108, P126, P144TGMU-A
PURY-P168, P192, P204, P216, P234TGMU-A
Issued in Oct. 2005 HWE05020
New publication effective Oct. 2005.
Specifications subject to change without notice.
Service Handbook
PURY-P72, P96, P108, P126, P144,P168, P192, P204, P216, P234TGMU-A
PUHY-P72, P96, P108, P126, P144,P168, P192, P204, P216, P234TGMU-A

Table of Contents

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Mitsubishi Electric CITY MULTI PURY-P234TGMU-A Specifications

General IconGeneral
BrandMitsubishi Electric
ModelCITY MULTI PURY-P234TGMU-A
CategoryAir Conditioner
LanguageEnglish

Summary

Service Handbook

General Safety Precautions

Essential safety guidelines and warnings before installing or servicing the unit to prevent injury or death.

Precautions for Handling Units with R410A

Specific safety measures and precautions when working with R410A refrigerant and related components.

Before Installing the Unit

Important considerations and warnings before proceeding with the installation of the unit.

Electrical Work and Installation Procedures

Guidelines for performing electrical work, including grounding, wiring, and safe handling during installation.

Before the Test Run

Crucial steps and precautions to take before conducting the initial test run of the unit.

Read Before Servicing

Restrictions

Remote Controller

MA and ME Remote Controller Functions and Specifications

Compares functions and specifications of MA and M-NET (ME) remote controllers, and provides selection criteria.

Group and Interlock Settings via ME Remote Controller

Procedures for group settings and interlock settings with LOSSNAY units using the ME remote controller.

Interlock Settings via MA Remote Controller

Steps for performing LOSSNAY interlock settings, searching, and deleting interlock configurations.

Electrical Wiring Diagram

Outdoor Unit Wiring Diagrams

Provides detailed electrical wiring diagrams for PUHY and PURY outdoor units across various models.

BC Controller Wiring Diagrams

Illustrates electrical wiring diagrams for different BC controller models (CMB-P104NU-G, CMB-P105NU-G, etc.).

Control

Outdoor Unit Dipswitch Functions

Details the functions and factory settings of dipswitches (SWU, SW1, SW2, SW3, SW4, SW5) on the outdoor unit.

Outdoor Unit Control Logic

Explains initial control, start-up control, bypass control, and compressor frequency control for PUHY and PURY units.

Defrost Operation Control

Describes the logic for starting, stopping, and handling problems during defrost operations for PUHY and PURY units.

Test Run Mode

Items to Check Before Test Run

Pre-test run checks including refrigerant leak, insulation resistance, valve status, and phase sequence.

Test Run Method

Step-by-step guide on how to perform a test run using the MA deluxe remote controller.

Troubleshooting

Check Code Lists

A comprehensive list of error codes, their definitions, and the affected units (outdoor, indoor, BC controller, etc.).

Troubleshooting Refrigerant Leaks

Procedures for identifying and repairing refrigerant leaks in extension pipes and outdoor units during cooling/heating.

LED Monitor Display on Outdoor Unit Board

Table of LED Codes

Comprehensive table mapping SW settings to display codes (LD1-LD8) for monitoring unit status and errors.

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