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Hitachi RAS-3.0TNESNH1 User Manual

Hitachi RAS-3.0TNESNH1
59 pages
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SERVICE MANUAL
HPS2017004HA

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Hitachi RAS-3.0TNESNH1 Specifications

General IconGeneral
Cooling Capacity3.0 kW
Heating Capacity3.6 kW
Outdoor Unit Weight28 kg
TypeSplit
Power Supply220-240 V, 50 Hz

Summary

Product Model Overview

Indoor Unit Model Types

Lists ducted, cassette, and floor ceiling indoor unit models.

Outdoor Unit Models

Lists various outdoor unit models.

Option List and Accessories

Wired Remote Controller Installation

Detailed guide for installing the wired remote controller, including accessories and wiring.

Wireless Remote Controller Introduction

Explains the functions of buttons and the LCD display on the wireless remote controller.

IR Receiver Installation and Function

Covers IR receiver parts, installation steps, and operational procedures.

Troubleshooting and Fault Diagnosis

Trouble Guide and Error Indicators

Provides a guide to identifying and resolving operational issues and interpreting error indicators.

Fault Code Reference

Comprehensive list and explanation of fault codes for indoor and outdoor units.

Component Checking and Maintenance

Refrigerant System Check Procedure

Outlines the steps for checking the refrigerant system using pressure gauges.

Parts Unit Inspection Methods

Details inspection procedures for specific components like fan motors and compressors.

Disassembly and Reassembly Procedures

Outdoor Unit Component Removal

Step-by-step instructions for disassembling and assembling outdoor unit components.

Indoor Unit Fan Motor Replacement

Step-by-step instructions for disassembling and replacing indoor unit fan motors.

Control Logic and Operational Modes

Fan Only Mode Logic

Describes the operational logic and running rules for the fan-only mode.

Cooling Mode Logic Rules

Explains the running rules for indoor fan, compressor, and outdoor fan in cooling mode.

Heating Mode Logic Rules

Details the running rules for indoor fan, compressor, and outdoor fan in heating mode.

Auto Mode Selection Logic

Describes how the system selects operating modes based on temperature difference.

Evaporator Low-Temperature Protection

Explains the protection mechanism for low evaporator temperatures during cooling.

Condenser High-Temperature Protection

Details protection mechanisms for high condenser temperatures in cooling and heating.

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