Profile: R S Y (Air Conditioning) Ltd. is a supplier of industrial central heating systems, industrial ventilation, refrigeration equipment, heat pump systems, and air conditioning units. Our air source heat pumps extract heat from the outdoors, and can work in temperatures as low as minus 15 degrees, to deliver constant low temperature warmth to areas around buildings. Our air conditioning units are cassettes, ducted, wall mounted, floor/ceiling, and ceiling/wall. All units can be installed as single splits, multi-splits, VRF, and VRF Systems.