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Mitsubishi FDUA125VNPWVH User Manual

Mitsubishi FDUA125VNPWVH
117 pages
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(Split system, air to air heat pump type)
Manual No.'22
For Australian market only
PAC-SM-412
STANDARD INVERTER PACKAGED
AIR-CONDITIONERS
SERVICE MANUAL
CEILINING CASSETTE-4 WAY TYPE
FDT125VNPWVH
DUCT CONNECTED-HIGH STATIC
PRESSURE TYPE
FDUA125VNPWVH
DUCT CONNECTED-HIGH STATIC
PRESSURE TYPE
FDU125VNPWVH
CEILING SUSPENDED TYPE
FDE125VNPWVH

Table of Contents

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Mitsubishi FDUA125VNPWVH Specifications

General IconGeneral
BrandMitsubishi
ModelFDUA125VNPWVH
CategoryAir Conditioner
LanguageEnglish

Summary

Service Manual Overview

Operation Control Overview

Remote Control Operation

Explains wired and wireless remote control functions and components.

Wired Remote Control Functions

Operation Mode Switch Sequence

Details the sequence for switching operation modes using the remote.

CPU Reset Procedure

Explains how to reset the CPU using the remote control.

Power Failure Compensation

Describes auto-restart function after power source failure.

Indoor Control Operation

Auto Operation Mode

Explains automatic switching between cooling and heating based on temperature.

Outdoor Control Operations

Compressor Speed Control

Details upper and lower limits for compressor speed in different modes.

Maintenance Data

Microcomputer Circuit Diagnosis

Guide to diagnosing microcomputer circuit issues using self-diagnosis.

Troubleshooting Flowcharts

Step-by-step troubleshooting guidance for common issues.

Zone Control Installation (FDU/FDUA)

Zone Control System Outline

Illustrates system configurations for zone control with dampers.

Zone Control Duct Design

Guidelines for designing ductwork for zone control systems.

Relay and Transformer Installation

Details installation of relay parts and transformers for zone control.

Electrical Wiring Diagrams

Indoor Unit Wiring

Wiring details for various indoor unit types (Ceiling Cassette, Duct, etc.).

Outdoor Unit Wiring

Wiring diagram for the outdoor unit FDC125VNP-W.

Piping System Diagram

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