JOHNSON Controls, a global leader in building technology and services, has introduced a new commercial heat pump, the York YSPA air-to-water reversible screw, to China. YSPA delivers the industry’s highest efficiency level and widest temperature range that lowers operating costs and carbon dioxide emissions, while increasing comfort. Its compact size makes it ideal for a variety of industries, including shopping malls, hotels and hospitals.

The new product is the only heat pump of its size in China – from 175 to 450 tonnes of cooling capacity – able to reach an energy efficiency ratio of 3.57. This efficiency level qualifies YSPA for Chinese Energy Level Grade 1, which is an environmental labelling programme that provides owners with a 10 per cent tax reimbursement. YSPA is more sustainable because its high efficiency reduces carbon footprint and it uses the refrigerant R134a.

YSPA is able to operate under a wide range of ambient temperature conditions – as low as -11° C for heating and as high as 52° C for cooling – making it suitable for a wide variety of climates. Stable leaving hot water temperatures of up to 55° C can be maintained by limiting defrost cycle frequency, duration and water temperature fluctuation.

Its innovative system is reliable and efficient during cooling, heating and the defrost operation. Design features include a middle pressure tank, step defrosting, ambient half-coil mounting design, cross functional hot gas injection and intelligent controls.