Johnson Controls-Hitachi Air Conditioning has launched the Centrifugal Chiller VG and S Series, capable of providing high energy-efficient cooling solutions for Hong Kong. Both the VG and S Series use R513a refrigerant (GWP 573) and an environment-friendly R1234ze refrigerant with ultra-low Global Warming Potential (GWP <1), helping Hong Kong further reduce its greenhouse gas emissions.

Describing their mission, Karvin Lo, Director and General Manager of Johnson Controls-Hitachi Air Conditioning Hong Kong, said, “We are entering a new era of low GWP refrigerants in HVAC (Heating, Ventilation and Air Conditioning) solutions. This is particularly relevant to Hong Kong’s transition towards long-term carbon neutrality by 2050. Providing low-carbon HVAC solutions to our customers in Hong Kong is core to our mission as we remain committed to helping all our customers embrace decarbonisation and combat climate change.”

The Direct-drive VSD Centrifugal Chiller VG Series features a gearless direct-drive two-stage compressor, eliminating the mechanical loss of speed-increasing gears found in conventional compressors. This design enhances efficiency and energy savings.

The Centrifugal Chiller S Series features proprietary centrifugal two-stage compression technology and optimizes the use of low-temperature cooling water to enhance performance, allowing the minimum inlet temperature to reach 12°C.