Hitachi RAS-25YHA / RAC-25YHA RAS-35YHA / RAC-35YHA INDOOR UNIT Maintenance, AIR Filter

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MAINTENANCE

CAUTION

Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply.

1. AIR FILTER

When the filter indicator lamp comes on, be sure to clean the filter. By doing so, the power rates aresaved. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will bereduced. Further, noise may occur. Be sure to clean the filter following the procedure below.

PROCEDURE

1 Open the front panel carefully and remove the filter.

2

Vacuum dust from the air filter using vacuum cleaner. If

there is too much dust, wash the filter with a detergent

and rinse it thoroughly. After that, dry it in the shade.

3

•

Set the filter with “FRONT” mark facing front, and slot

 

them into the original state.

 

•

After attaching the filters, push the front panel at three

arrow portions as shown in figure and close it.

CAUTION

•Do not wash with hot water at more than 40°C. The filter may shrink.

•When washing it, shake off moisture completely and dry it in the shade; do not expose it directly to the sun. The filter may shrink.

•Don’t operate the unit without filter. Fault may occur if you continue.

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Contents Indoor UNIT/OUTDOOR Unit Precautions During Installation Precautions During Shifting or MaintenancePrecautions During Operation Do not climb on the outdoor unit or put objects on itNames and Functions of Each Part Air outletTimer Lamp Orange Filter Lamp GreenOperation Lamp Yellow This lamp lights during operation Attaching the negative ion stick to the filter frameSignal emitting window/transmission sign Temperature buttonsReset buttons FAN Speed selector Auto Swing button Timer controlVarious Functions Automatic OperationHeating Operation AutoItaliano Français Deutsch English Dehumidifying OperationCooling Operation Italiano Français Deutsch EnglishFAN Operation HOW to SET the Timer OFF-TimerTime button Timer control button Italiano FrançaisHOW to SET the Sleep Timer HOW to Exchange the Batteries in the Remote Controller Adjusting the AIR DeflectorsSpanish Italiano Français Deutsch English Procedure MaintenanceAIR Filter Cleaning of Front Panel Maintenance AT Beginning of Long OFF PeriodTimer PROGRAMMING/SLEEP Timer Operation InformationCapabilities Various FunctionsAfter Sales Service and Warranty Check to see if the power plug is securely insertedRegular Inspection Check to see if the unit’s earth line has been connectedDetails, consult your sales agent Memo Memo Memo 447 a

RAS-25YHA / RAC-25YHA RAS-35YHA / RAC-35YHA INDOOR UNIT specifications

Hitachi RAS-25YHA and RAS-35YHA indoor units represent cutting-edge technology in the world of air conditioning, designed to offer efficient cooling and heating solutions for residential and commercial spaces. These models prioritize comfort, energy efficiency, and advanced functionalities, making them ideal choices for modern living environments.

One of the prominent features of the RAS-25YHA and RAS-35YHA models is their robust energy efficiency. These units utilize advanced inverter technology, which allows the compressor to adjust its speed based on the cooling or heating demands of the space. As a result, users benefit from lower energy consumption and reduced electricity bills, while maintaining optimal temperature levels.

The sleek and compact design of the indoor units ensures they blend seamlessly into various interior styles. The units are available in a range of colors, catering to diverse aesthetic preferences while maintaining a minimalist look. This design not only enhances the overall appearance of the space but also maximizes airflow performance.

Both models are equipped with Hitachi’s innovative filter technology, which works to purify the air inside the environment. The filters effectively capture dust, allergens, and other particles, ensuring that occupants breathe cleaner and healthier air. Regular filter maintenance is simple, which adds to the overall convenience of using these units.

Another key feature is the quiet operation of the RAS-25YHA and RAS-35YHA. With specially designed fan blades and sound-dampening technology, these indoor units produce minimal noise, allowing users to enjoy a peaceful atmosphere whether at home or in the workplace.

The user-friendliness of these air conditioning units is enhanced by a remote control and an intuitive interface. Users can easily adjust the settings, change the modes, and schedule operations according to their convenience.

In summary, the Hitachi RAS-25YHA and RAS-35YHA indoor units are exemplary models that showcase advanced air conditioning technology. With their energy-efficient inverter systems, sleek designs, effective air purification, quiet operation, and user-friendly controls, they are an excellent investment for those seeking reliable and efficient climate control solutions in their spaces.
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