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Daikin Europe Extends Heat Pump Inverter Chiller Series


Daikin Europe NV has introduced a new EWYD-BZ air cooled heat pump inverter chiller series – available in ‘standard’ and ‘low noise’ (6.5dBA reduction) models which provide ideal solutions for comfort cooling applications and are also an ideal replacement for conventional boilers.

The new Daikin heat pump series has an extensive capacity range (cooling capacity from 250 to 580 kW) and comes in 13 sizes, which can be combined to suit even the largest commercial office, retail and wholesale complexes and hotel cooling and/or heating applications. Furthermore, the innovative use of inverter driven and single screw compressors generates considerable savings in annual energy costs in both heating and cooling operations. The units also utilise R-134a refrigerant – the most efficient and environmentally conscious refrigerant currently available for screw compressors.

Inverter boost extends operating range

Unlike many contemporary chiller systems that lose heating capacity in colder temperatures – just when it is needed most – Daikin EWYD-BZ chillers can fully match a building’s thermal load, even in ambient temperatures down to -12 0C. The inverter boosts the compressor to match the required thermal load resulting in substantial energy and cost savings in heating mode compared to a traditional heat pump and gas boiler system. This advantage also applies in cooling mode where once again, inverter control allows a boost in capacity when it is needed most in higher outdoor temperatures. Thus, there is no need to oversize installations, adding to the significant cost savings offered by the new series.


EWYD-BZ units are energy efficient, both in cooling and heating modes, with excellent EER, ESEER and COP values and are also designed for easy connection to building automation and management systems. Other major heat pump advantages include a partial heat recovery option, low current inrush on start up by virtue of the use of inverters, an optimum unit power factor and optimised defrost cycles.

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