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Mitsubishi Electric PUHY-P168 User Manual

Mitsubishi Electric PUHY-P168
326 pages
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Table of Contents

Questions and Answers:

Mitsubishi Electric PUHY-P168 Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPUHY-P168
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Precautions

General Safety Warnings

Covers reading manuals, handling refrigerant leaks, and general warnings.

Installation and Electrical Safety

Details safe installation practices, cable usage, and electrical work requirements.

I Read Before Servicing

Tools, Materials, and Piping

Lists necessary tools, materials, and specifies piping requirements and handling.

Brazing, Vacuum, and Refrigerant Handling

Covers brazing, air tightness tests, vacuum drying, and refrigerant charging procedures.

Refrigerant Characteristics and Oil Notes

Explains refrigerant properties, composition, pressure, and notes on refrigerating machine oil.

II Restrictions

System Configuration and Cable Specifications

Defines system compatibility, maximum cable lengths, and types.

Switch Settings and Address Configuration

Details DIP switch functions and address settings for system components.

System Connection and Wiring Methods

Provides sample system connection diagrams and explains wiring methods.

Pipe Length and Size Specifications

Specifies allowable pipe lengths and sizes for various system configurations.

III Outdoor Unit Components

Component Identification and Diagrams

Identifies major components and shows refrigerant circuit diagrams for outdoor units.

Control and Power Systems

Details the control board, INV board, fan board, noise filter, and transformer box.

IV Remote Controller

MA and ME Remote Controller Functions

Compares functions and specifications of MA and ME remote controllers.

Group and Interlock Settings

Explains group settings, interlock settings, and using the built-in temperature sensor.

V Electrical Wiring Diagram

Outdoor Unit Wiring Diagram

Provides the detailed electrical wiring diagram for the outdoor unit.

Transmission Booster Wiring Diagram

Shows the electrical wiring diagram for the transmission booster.

VI Refrigerant Circuit

Refrigerant Circuit Diagrams

Illustrates refrigerant flow for PUHY-P72, P96, and P120 models.

Principal Parts and Functions

Explains the function and specifications of key refrigerant circuit components.

VII Control

Dipswitch Functions and Settings

Details DIP switch functions and factory settings for unit control.

Outdoor Unit Control Logic

Explains control methods, startup sequences, bypass control, and emergency operation modes.

Operation Mode Flowcharts

Provides flowcharts for indoor and outdoor unit operation modes.

VIII Test Run Mode

Test Run Preparation and Procedure

Outlines checks before and the method for performing a test run.

Refrigerant Adjustment and Data

Covers refrigerant amount adjustment, calculation formulas, and standard operation data.

IX Troubleshooting

Error Code Lists and Definitions

Lists and defines error codes, their causes, and troubleshooting steps.

Transmission and Component Troubleshooting

Details troubleshooting for transmission issues, components like sensors, valves, fans, and inverter modules.

X LED Monitor Display on the Outdoor Unit Board

Reading LED Monitor Displays

Explains how to interpret LED displays for various operating conditions and error codes.

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