... 3. Scroll compressor 4. R22,R407C,R134a HWAC Series Air Cooled Water Chiller Features:1. Suitable Buildings: High-grade apartments, duplex ... as well as office buildings, restaurants, shops, etc. 2. Reliable and Energy Saving: multi refrigerant circuits, they can work separately or ... ; 4. Easy Installation: the outside unit is cooled by air; and can be installed on the balcony, rooftop or the ground ...