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Mitsubishi Heavy Industries SKM25ZF-S User Manual

Mitsubishi Heavy Industries SKM25ZF-S
127 pages
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Manual No. '06 • SCM-T-052
INVERTER MULTI-SPLIT SYSTEM
ROOM AIR-CONDITIONER
(Air to air heat pump type)

Table of Contents

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Mitsubishi Heavy Industries SKM25ZF-S Specifications

General IconGeneral
BrandMitsubishi Heavy Industries
ModelSKM25ZF-S
CategoryAir Conditioner
LanguageEnglish

Summary

GENERAL INFORMATION

Specific features

Details on piping length, connectable units, and indoor unit capacities.

How to read the model name

Explanation of the model naming convention used for the air conditioner units.

SELECTION DATA

Specifications

Detailed technical specifications for indoor and outdoor units.

Range of usage & limitations

Operational limits and conditions for indoor and outdoor air temperatures.

Exterior dimensions

Detailed physical dimensions for indoor and outdoor units.

Piping system

Diagrams and specifications for the refrigerant piping system.

Selection chart

Charts for selecting capacities and correcting performance based on temperatures.

ELECTRICAL DATA

Electrical wiring

Wiring diagrams and component identification for indoor and outdoor units.

OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

Operation control by remote control

Details on functions and operations of the wireless and wired remote controls.

Unit ON/OFF Button Operations

Instructions for operating the unit using the ON/OFF button on the unit itself.

Drain Motor Forced Operation

Procedure for forced operation of the drain motor for specific unit types.

Power Blackout Auto Restart Function

Explanation of the auto-restart function after power interruptions.

Flap Control Functions

How to control the air direction flap using the remote control.

Comfortable Timer Settings

Guidance on setting the comfortable timer for operations.

Cooling Operation Control

Details on capacity control and mode switching for cooling operations.

Heating Operation Control

Details on capacity control and mode switching for heating operations.

Automatic Operation Outline

How the unit automatically determines operation mode based on temperatures.

Determining Operating Mode

Logic for determining the cooling, heating, or fan-only operating modes.

External Control & Input Signal

Using external signals for controlling unit operation and inputs.

Operation Permission/Prohibition Control

Managing unit operation permissions and prohibitions via jumper wires and signals.

Control and Protection Functions

Details on various protective functions and controls for safe operation.

APPLICATION DATA

Safety Precautions for Installation

Critical safety warnings and precautions for installation work.

Indoor Unit Installation

Procedures for installing wall-mounted and ducted indoor units.

Remote Control Installation

Instructions for installing the wired remote control unit.

Outdoor Unit Installation

Guidelines for selecting the location and installing the outdoor unit.

Electrical Wiring Procedures

Instructions for connecting power lines and crossover wires.

Refrigerant Piping Installation

Details on piping limits, diameters, connections, and charging.

Test Run and Handling Instructions

Steps for conducting test runs and explaining operation to customers.

Wired Remote Control & Super Link Adapter Installation

Installation of optional wired remote control and SC-AD-E adapter.

Optional Parts Installation (Ducted Type)

Installation guides for optional parts for ducted indoor units.

MAINTENANCE DATA

Troubleshooting and PCB Checks

Procedures for diagnosing issues before replacing the printed circuit board.

Indication of Self-Diagnosis

Interpreting error codes and indicators for self-diagnosis.

Inspection Procedures for Troubleshooting

Detailed steps for inspecting sensors, motors, and circuits during troubleshooting.

Servicing Procedures

Steps for evacuation, refrigerant charge, and recovery.

REFRIGERANT PIPING INSTALLATION AND SERVICING MANUAL FOR AIR CONDITIONERS USING R410A

R410A Refrigerant Overview

Introduction to R410A refrigerant, its characteristics, and regulations.

Refrigerant Piping Installation Procedures

Guidelines for selecting materials, processing pipes, and brazing.

Tools and Procedures for Installation, Removal, Servicing

Required tools and steps for R410A system installation and servicing.

Refrigerant Recovery Procedures

Steps and tools needed for recovering R410A refrigerant.

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