Hitachi RAK-25PSB User Manual

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ENGLISH
SPLIT TYPE AIR CONDITIONER
INDOOR UNIT/OUTDOOR UNIT
MODEL
RAK-18PSB/RAC-18WSB
RAK-25PSB/RAC-25WSB
RAK-35PSB/RAC-35WSB
INDOOR UNIT OUTDOOR UNIT
RAK-18PSB
RAK-25PSB
RAK-35PSB
RAC-18WSB
RAC-25WSB
RAC-35WSB
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 1~20
To obtain the best performance and ensure years of
trouble free use, please read this instruction manual
completely.
Bedienungsanleitung Seite 21~40
Lesen Sie diese Bedienungsanleitung vollständig
durch, um eine optimale Geräteleistung und einen
langjährigen störungsfreien Betrieb sicherzustellen.
Mode d'emploi Pages 41~60
Pour obtenir une efficacité optimale et garantir la fiabilité
de fonctionnement de votre télécommande pendant
de nombreuses années, veuillez lire attentivement et
entièrement cette notice.
Manuale di istruzioni Pagina 61~80
Per ottenere il massimo delle prestazioni e garantire
un utilizzo sicuro per anni, leggere questo manuale di
istruzioni nella sua integrità.
Manual de instrucciones Página 81~100
Para obtener un rendimiento óptimo y asegurarse
muchos años de uso sin problemas, lea detenidamente
este manual de instrucciones.
Manual de instruções Página 101~120
Leia este manual de instruções na íntegra para obter
um desempenho ideal e garantir o funcionamento sem
problemas da unidade ao longo dos anos.
Οδηγίες χρήσης Σελίδα 121~140
Για να έχετε την καλύτερη δυνατή απόδοση και να
διασφαλίσετε πολυετή χρήση χωρίς προβλήματα,
διαβάστε ολόκληρο το παρόν εγχειρίδιο οδηγιών.

Hitachi RAK-25PSB Specifications

General

Brand	Hitachi
Model	RAK-25PSB
Category	Air Conditioner
Language	English

Summary

Safety Precaution

Precautions During Installation

Guidelines for safe and correct installation of the air conditioner unit.

Precautions During Shifting or Maintenance

Safety measures before moving or servicing the air conditioner.

Precautions During Operation

Important safety rules to follow while the air conditioner is running.

Names and Functions of Each Part

Indoor Unit Components

Identification of key parts and features of the indoor air conditioning unit.

Outdoor Unit Components

Identification of key parts and features of the outdoor air conditioning unit.

About Outdoor Unit

Specific information and operational notes related to the outdoor unit.

Indoor Unit Indications

Temporary Switch

Functionality and usage of the manual operation switch on the indoor unit.

Indoor Unit Control Panel / Cleaning Unit

Installing Anti-Mold Wasabi Cassette

Open the Front Panel

Procedure for safely opening the front panel of the indoor unit.

Install the Anti-Mold Wasabi Cassette

Steps to correctly insert the anti-mold cassette into its designated location.

Installing Anti-Mold Wasabi Cassette

Close the Front Panel

Procedure for securely closing the indoor unit's front panel after installation.

Filter Cleaning Unit Operation Check

Preparation Before Operation

Install the Batteries

Guide on how to insert batteries into the remote controller.

Fix Remote Controller Holder

Instructions for mounting the remote control holder on a wall.

Preparation Before Operation

Set Calendar and Clock

Procedure for setting the current date and time on the air conditioner.

Names and Functions of Remote Controller

Names and Functions of Remote Controller

Key Buttons and Modes

Details on various function buttons like Powerful, Silent, Swing, and Mode selection.

Remote Controller Precautions

Important safety and handling guidelines for the remote control.

Various Functions

Auto Restart Control

Explanation of how the unit resumes operation after a power interruption.

Automatic Operation

Heating Operation

Defrosting

Dehumidifying Operation

Dehumidifying Function Details

Explanation of how the dehumidifying mode works and its effects.

Cooling Operation

Fan Operation

Clean (One Touch Clean) Operation

Filter Cleaning Operation (Automatic Operation)

Filter Cleaning Operation (Manual Operation)

Filter Cleaning Operation (Manual Operation)

Prohibiting Filter Cleaning Operation

Steps to disable the automatic filter cleaning feature.

Auto Swing Operation

Vertical Swing

Operation of the vertical airflow direction control.

Wind Mode Operation

Horizontal Auto Swing Operation

Control of the horizontal airflow direction.

Wind Mode Operation

Comfort Airflow Operation

Using the sensor to direct airflow towards or away from people.

Eco Sensor Operation

Starting Eco Sensor Operation

Steps to activate the energy-saving sensor mode.

Canceling Eco Sensor Operation

Steps to deactivate the energy-saving sensor mode.

Ion Mist Operation

Starting Ion Mist Operation

How to activate the ion mist feature.

Canceling Ion Mist Operation

How to deactivate the ion mist feature.

Powerful Operation

Starting Powerful Operation

Procedure to initiate the maximum power mode.

Canceling Powerful Operation

Procedure to stop the maximum power mode.

Silent Operation

Starting Silent Operation

Procedure to activate the silent mode.

Canceling Silent Operation

Procedure to stop the silent mode.

Leave Home (LH) Operation

Continuous Operation

Operating the Leave Home function without a set duration.

Day Timer Operation

Setting the Leave Home function for a specific number of days.

Once Timer (On/Off Timer) Operation

Off Timer

Setting a future time for the unit to switch off.

On Timer

Setting a future time for the unit to switch on.

On/Off Timer

Setting future times for both switching on and off.

Eco Sleep Timer Operation

Start Eco Sleep Timer Operation

Steps to activate the energy-saving sleep timer.

Cancel Eco Sleep Timer Operation

Steps to deactivate the energy-saving sleep timer.

Eco Sleep Timer Operation

Set Eco Sleep Timer and On Timer

Combining ECO Sleep Timer with an ON Timer for automatic start/stop.

Weekly Timer Operation

How to Set a Weekly Timer

Step-by-step guide for programming weekly timer settings.

Weekly Timer Operation

Set Timer Reservations

Configuring ON/OFF times and temperatures for weekly programs.

Weekly Timer Operation

Activate or Deactivate Weekly Timer

Enabling or disabling the weekly timer function.

Setting Non-Active Weekly Timer

Procedure to turn off the weekly timer function.

Weekly Timer Operation

How to Copy and Paste Weekly Timer Data

Method for duplicating timer settings between days.

Weekly Timer Operation

Delete Weekly Timer Data

Procedures for removing specific timer programs or days.

Weekly Timer Operation

Delete One Day Reservation

Removing all timer settings for a specific day.

Delete Mode A or Mode B

Removing all timer settings for an entire mode (A or B).

Info Function

Check Temperature Around Remote Controller

Displaying the ambient temperature detected by the remote.

Check Monthly Power Consumption

Viewing historical energy usage data on the remote display.

Retrieve Current Calendar and Clock

Syncing the unit's clock and date from the indoor unit.

Operation Mode Lock

Locking Operation Modes

Steps to lock Heating, Cooling, or Dehumidifying modes.

Unlocking Operation Modes

Steps to unlock previously locked operation modes.

Maintenance

Maintenance of Dust Box

Instructions for cleaning the dust collection box.

Maintenance (continued)

Maintenance of Micro Mesh Stainless Filter

Procedure for cleaning the air filters.

Maintenance (continued)

Maintenance of Dust Catcher

Instructions for cleaning the dust catcher component.

Maintenance (continued)

Maintenance of Ion Mist Unit

Procedure for cleaning the ion mist generator.

Understanding the Operating Mechanism

Heating Capability

How the unit provides heat and factors affecting its performance.

Cooling, Dehumidifying and Dry Cool Capabilities

How the unit cools, removes moisture, and operates in dry mode.

The Ideal Ways of Operation

Troubleshooting

Filter Cleaning Operation Issues

Common problems and solutions related to the filter cleaning system.

Troubleshooting

Anti-Mold Wasabi Cassette Issues

Troubleshooting specific problems related to the anti-mold cassette.

General Troubleshooting Checks

Basic checks to perform before seeking service for operational issues.

Troubleshooting

Cases Not Indicating Malfunction

Normal operational sounds and phenomena that do not signal a fault.

Troubleshooting

Contact Sales Agent Immediately

When to seek professional service for persistent or serious issues.

Maintenance for Long-Term Storage

Steps to prepare the unit for extended periods of non-use.

Regular Inspection

Earth Line and Mounting Frame Checks

Verifying correct earth connection and stability of the mounting frame.

Inspection and Maintenance

Professional Maintenance Inspection

Why and when to request expert maintenance services.