Hitachi RAK-25RXB User Manual

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SPLIT TYPE AIR CONDITIONER
INDOOR UNIT
MODEL
This room air conditioner is only for consumer usage.
Do not use for preservation of foods, animals, plants, precision machines, art, medicine or such.
Instruction manual
Page 1~10
To obtain the best performance and ensure years of
trouble free use, please read this instruction manual
completely.
RAR-6N1
RAK-35RXB
RAK-50RXB
RAK-25RXB
RAK-18QXB
RAK-25RXB
RAK-18QXB
RAK-35RXB
RAK-50RXB

Hitachi RAK-25RXB Specifications

General

Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Energy Efficiency Class Cooling	A++
Energy Efficiency Class Heating	A+
Refrigerant	R32
Power Supply	220-240V, 50Hz
Indoor Unit Weight	9 kg
Type	Split System

Summary

SAFETY PRECAUTIONS

Precautions During Installation

Instructions for safe installation to prevent damage or injury.

Precautions During Shifting or Maintenance

Safety guidelines for moving or servicing the unit to avoid hazards.

Precautions During Operation

Essential safety measures to follow while the air conditioner is running.

INDOOR UNIT DETAILS

Names and Functions of Indoor Unit Parts

Identifies and explains the components of the indoor unit.

INDOOR UNIT INDICATIONS AND CONTROLS

Indoor Unit Indicator Lamps

SETTING CALENDAR AND CLOCK

CALENDAR AND CLOCK SETTING NOTES

REMOTE CONTROLLER LAYOUT AND FUNCTIONS

Room Temperature Setting Buttons

Start/Stop Button Function

Fan Speed Selector Button

ECO Button Usage

REMOTE CONTROLLER FUNCTION BUTTONS

POWERFUL Operation Button

ONE TOUCH CLEAN Button

LEAVE HOME Button

ECO SLEEP TIMER Button

ON/OFF Timer Buttons

Mode Selector Button

How to cycle through different operation modes (Auto, Heat, Cool).

SILENT Button

WEEKLY TIMER Buttons

AIR CONDITIONER FUNCTIONS

Auto Restart Control

Automatic Operation Mode

How the unit selects operation mode based on room temperature.

HEATING OPERATION GUIDE

DEHUMIDIFYING OPERATION GUIDE

COOLING OPERATION GUIDE

POWERFUL OPERATION MODE

SILENT OPERATION MODE

ECO OPERATION MODE

ECO OPERATION WITH SENSOR

LEAVE HOME OPERATION

CLEAN (ONE TOUCH CLEAN) OPERATION

ONCE TIMER (ON/OFF TIMER) OPERATION

ECO SLEEP TIMER OPERATION

ECO SLEEP TIMER AND ON TIMER COMBINATION

To set ECO SLEEP TIMER and ON TIMER

How to combine ECO sleep timer with ON timer for automated operation.

WEEKLY TIMER OPERATION SETUP

How to Set Up a Weekly Timer

Steps to select modes and set programs for the weekly timer.

WEEKLY TIMER OPERATION CONFIGURATION

Setting a Weekly Timer Program

Details on setting specific programs within the weekly timer.

Selecting the Day of the Week for Timer

How to choose specific days for setting timer programs.

WEEKLY TIMER OPERATION MODES

Selecting and Managing Weekly Timer Modes

Instructions on selecting and managing weekly timer modes.

WEEKLY TIMER OPERATION COPYING

Copying Timer Schedules Between Days

Steps to copy timer schedules between days.

WEEKLY TIMER OPERATION DELETION

Deleting Weekly Timer Data

Instructions on deleting specific program reservations or entire days.

WEEKLY TIMER OPERATION CANCELLATION

Deleting One Day's Reservation

Specific steps to delete a day's timer reservations.

Deleting Mode A or Mode B Reservations

Steps to delete all reservations for a selected mode (A or B).

INFO FUNCTION USAGE

Checking Temperature Around Remote Controller

Checking Monthly Power Consumption

OPERATION MODE LOCK FUNCTION

MAINTENANCE PROCEDURES

1. AIR FILTER CLEANING

Instructions for cleaning the air filter to maintain performance and save energy.

AFTER SALES SERVICE AND WARRANTY SUPPORT

Troubleshooting Checks Before Service Request

Troubleshooting guide for common issues before requesting service.