HITACHI RAS-S35YHAB ‘S’ SERIES 3.5 kW Inverter Split System Air Conditioner


3.5 kW Cooling – 3.8 kW Heating Capacity

Indoor RAS-S35YHAB – Outdoor RAC-S35YHAB Single Phase

Wall Mounted Split System Reverse cycle. ‘S’ Series. R32 refrigerant

Frost wash works by freezing moisture on the surface of the indoor unit heat exchanger, capturing and then flushing away impurities that can build over time.


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Indoor RAS-S35YHA
Outdoor RAC-S35YHA
Refrigerant Type R32
Power Supply (Volts – Phase – Hz) 230-240 / 1 / 50
Cooling Capacity – Rated (Range) kW 3.5 (0.9 – 4.0)
Air Flow l/sec 189
Power Input (Range) kW 0.83 (0.25 – 1.4)
Efficiency – Rated W/W 4.22
Star Rating A 3.5
Heating Capacity – Rated (Range) kW 3.8 (0.9 – 4.8)
Air Flow l/sec 217
Power Input (Range) kW 0.83 (0.25 – 1.6)
Efficiency – Rated W/W 4.94
Star Rating A 5.0
Indoor Unit Dimensions (WxDxH) mm 780 x 280 x 230
Net Weight kg 8.5
Cooling airflow (Turbo/H/M/L) L/s
Cooling Sound Pressure (Hi / Med / Lo / Sleep) dBA(@spl) 43 / 36 / 26 / 25
Heating Sound Pressure (Hi / Med / Lo / Sleep) dBA(@spl) 44 / 36 / 27 / 26
Outdoor Dimensions (WxDxH) mm 792 x 600 x 299
Net Weight kg 37.5
Compressor Type  –
Fan Motor Output W
Cooling Sound Pressure dBA(@spl) 48
Heating Sound Pressure dBA(@spl) 50
Sound Power dBA(@spl) 62
Cooling Outdoor operating range °C -10 to 46
Heating Outdoor operating range °C -20 to 21
Pipe Size Pipe Sizes mm 6.35 / 9.52
Coupler Style  –
Minimum Length m 3
Maximum Length m 20
Pre Charge Length m 20
Additional Refrigerant g / m
Lift m 10

S-Series Premium Wall Mount with FrostWash Technology

Self-Cleaning Technology

The new Hitachi ‘S’ Series range of split systems offers many innovative features, from enhanced energy efficiency, to airflow control and ultra-quiet operation. FrostWash addresses an issue that had long stumped the air conditioning industry – how to effectively and efficiently clean the inside of room air conditioning units. With FrostWash, a revolutionary new cleaning technology, you can depend on cleaner, fresher air all year round.

Long Lasting Hygienic Air

Providing your indoor environment with fresher, cleaner air. Frost Wash achieves a 91% reduction of bacteria and 87% reduction of mould in your unit*. For the purest air quality, the S-Series also features an additional Nano-Titanium pre-filter as well as the unique Titanium Wasabi Air Purifying filter.

* Feature introduction based on RAS/RAC-S35YHAB. Tested by Kitasato Research Centre of Environmental Science. Test No. 2019_0154.

Premium Features

The S-Series comes with a suite of unique features such as built-in Motion Sensor with motion detect eco mode, Eco Sleep mode, leave home function and weekly scheduling capabilities.

Motion-detect Eco Mode allows the unit to adapt its temperature settings depending on people’s absence or presence – saving you power.

Boosted Energy Efficiency

Premium S-Series Hitachi Wall mounted split systems have increased energy efficiency and improved energy star ratings for even more power-saving operation.

The Eco Motion sensor can automatically detect if there are individuals occupying a room and if the room becomes vacant, your air conditioner will adjust the temperature accordingly to conserve energy.

FrostWash mode can be activated to keep the heat exchanger clean and reduce power usage even further.

Stylish Wireless Remote Control.

The S-Series comes with a stylish wireless controller which has a built-in feature – Power Consumption Tracking.

Monitor your air conditioner’s power usage, ensuring that there are no surprises when the electricity bill arrives.

Peace of Mind

With a six-year warranty* and backed by one of Australia’s largest manufacturers, Temperzone — you will always have peace of mind. * Applicable to S Series YHAB models only, purchased after 1st April 2021.

Optional Wifi Control for your Hitachi air conditioner

Installing the optional airCloud Home wifi controller module allows you to control your wall-mounted system using your smartphone or tablet.

Operate your system from home or remotely, adjusting temperature, fan speed and setting custom schedules.


3.5 kW Cooling
3.8 kW Heating

FROSTWASH Self-Cleaning Function

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