FrostWash technology is a revolutionary heat pump cleaning technology only available with Hitachi Heat pumps. FrostWash effectively achieves a 91% reduction of bacteria and an 87% reduction of mould in your heat pump giving you better quality air.

The S Series Hitachi Heat Pumps equipped with FrostWash, a revolutionary heat pump cleaning technology removing dust, bacteria and mould from your unit for fresher air all year around.

FrostWash works by freezing the coil in the indoor unit, then it melts away the ice into the drainpipe removing dust, bacteria and mould. The indoor unit can get a build-up of unwanted nasties and FrostWash can clean these away for you.

Our 3.2kW and 6.0kW (heating) S Series Hitachi heat pumps come with a highly regarded Consumer Recommendation. Our 3.2kW has received a whooping 5-star heating rating ensuring fantastic energy efficiency for your heat pump system.

The S Series Heat pumps advanced air filtering system combines a Nano Stainless pre-filter with a Nano Titanium Wasabi air purifying filter to provide fresher, cleaner air. 

The filter is packed with a hybrid coating of Nano Titanium and wasabi solution which provides a powerful antibacterial, anti-mould, anti-allergen and deodorising effect, reducing bacteria and allergen levels.

The built-in heat pump motion sensor detects if a room has been empty for over 20 minutes and automatically switches to energy-saving Eco Mode. Come back into the room, and the system returns to normal.

Eco Mode efficiently delivers a slightly reduced temperature to help keep heat pump energy consumption to a minimum.

For the ultimate control, a premium wireless remote comes standard with S Series heat pumps or there is an optional wired wall controller, both give you fantastic added functionality.

Both have an advanced 7 day timer and power consumption tracking. You’ll have complete control over your schedule and heat pump power usage.

With the newly improved seamless fan control system, Hitachi heat pumps assure extremely quiet and smooth fan speed changes for even more comfort. At 20dBA our quietest heat pump noise level* is quieter than a soft whisper. (*RAS-E/S25YHAB sleep mode in heating)

S Series has all the fantastic features of the Standard E Series heat pumps and more:

– Eco mode
– Sleep mode
– Powerful mode
– 4-way directional airflow
– Leave home function
– Track power consumption
– 24/7 programmable timer
– Quiet operation 
– Efficient DC Inverter system
– Ultra low standby power

Installing the optional airCloud Home control module allows you to control your heat pump from your smartphone via the airCloud App. Turn your Hitachi heat pump on or off, adjust the temperature and fan speed and set custom schedules.

An industry leading 6 year parts and labour warranty covers Hitachi heat pumps for your home and office. This offers peace of mind that your heat pump will perform year after year.