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Hitachi RAS-25YHA2 User Manual

Hitachi RAS-25YHA2
20 pages
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HSILGNE
SPLIT TYPE AIR CONDITIONER
MODEL
RAS-25YHA2/RAC-25YHA2
RAS-35YHA2/RAC-35YHA2
INDOOR UNIT/OUTDOOR UNIT
INDOOR UNIT
Instruction manual Page 1~20
To obtain the best performance and ensure years of trouble free use, please read this instruction manual completely.
RAS-25YHA2
RAS-35YHA2
OUTDOOR UNIT
RAC-35YHA2
RAC-25YHA2

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Hitachi RAS-25YHA2 Specifications

General IconGeneral
CategoryAir Conditioner
TypeSplit System
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR410A
Power Supply220-240V, 50Hz
Indoor Unit Weight9 kg
Outdoor Unit Weight25 kg
Noise Level (Outdoor Unit)50 dB(A)
Outdoor Unit Dimensions (WxHxD)240 mm
Energy Efficiency Ratio (EER)3.50

Summary

SAFETY PRECAUTIONS

Installation Safety Guidelines

Essential safety measures and warnings to follow during the installation process of the air conditioner unit.

Handling and Maintenance Safety

Crucial safety precautions to observe when moving, maintaining, or operating the unit to prevent accidents.

OPERATING SAFETY PRECAUTIONS

COMPONENT IDENTIFICATION AND SPECIFICATIONS

Indoor Unit Parts Overview

Details the various components and functions of the indoor unit of the air conditioner.

Outdoor Unit Parts Overview

Identifies and explains the parts and functions of the outdoor unit of the air conditioner.

INDOOR UNIT INDICATORS AND CONTROLS

Indicator Lamps and Temporary Switch Functions

Explains the meaning of indicator lamps and the function of the temporary operation switch on the indoor unit.

REMOTE CONTROLLER GUIDE

Remote Control Operation and Button Functions

Describes how to operate the remote control and the function of each button for controlling the air conditioner.

OPERATING MODES AND FEATURES

Automatic Operation Mode Explanation

Details how the automatic operation mode selects heating or cooling based on room temperature.

HEATING OPERATION GUIDE

Defrosting Cycle Explanation

Describes the defrosting process that occurs during heating operation to remove frost from the outdoor unit.

DEHUMIDIFYING OPERATION GUIDE

Dehumidifying Function Mechanism

Explains how the dehumidifying function operates and its behavior in relation to room temperature.

COOLING OPERATION GUIDE

FAN OPERATION GUIDE

Auto Fan Speed in Cooling/Heating

Explains the automatic adjustment of fan speed during cooling and heating operations.

TIMER SETTING PROCEDURES

Setting OFF, ON, and ON/OFF Timers

Step-by-step instructions for programming the off-timer, on-timer, and combined on/off timer functions.

SLEEP TIMER SETUP AND MANAGEMENT

Sleep Timer Operation and Cancellation

Guide on setting the sleep timer, its effect on other timers, and how to cancel reservations.

AIR DEFLECTOR ADJUSTMENT AND REMOTE BATTERY REPLACEMENT

Adjusting Air Deflectors

Instructions on how to adjust the horizontal and vertical air deflectors for optimal air direction.

Replacing Remote Controller Batteries

Step-by-step guide for safely replacing batteries in the remote controller.

MAINTENANCE GUIDELINES

Air Filter Cleaning Procedure

Detailed steps for cleaning the air filter to maintain unit performance and save energy.

FRONT PANEL CLEANING

LONG OFF PERIOD MAINTENANCE

PRODUCT INFORMATION AND FUNCTIONAL DETAILS

Unit Capabilities and Performance Notes

Information on heating, cooling, and dehumidifying capabilities, and notes on functional aspects.

Additional Functional Explanations

Explanations on fan speed variations, protective circuits, and operation lamp behavior.

REGULAR INSPECTION AND SERVICE ASSISTANCE

Pre-Service Checks and Troubleshooting

Checklist for regular inspections and common issues to verify before contacting service.

After Sales Service and Warranty

Guidance on obtaining after-sales service and understanding warranty support for the unit.

OPERATIONAL PHENOMENA AND FAULT DIAGNOSIS

Understanding Normal Operating Sounds and Mist

Explains normal operating sounds and mist emission, and how to reduce odors.

Reporting Unit Failures to Support

Steps for contacting technical support when the unit fails to operate normally, including necessary information.

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