Air conditioners; humidifiers; dehumidifiers; air cooling apparatus; heat pumps; refrigerating machines and installations; refrigerator condensers; heat exchangers not being parts of machines; economizers, namely, devices for warming feed water in heating boilers; separators for the cleaning and purification of gases and liquids; heat accumulators; cooling evaporators; apparatus for heating, cooling, and air conditioning, namely, variable refrigerant flow heating and air conditioning units; duct-free HVAC units comprising indoor air handling units and corresponding outdoor condensing units; air handlers; energy and heat recovery ventilators; germicidal lamps for purifying air which use ultraviolet light; HVAC units; coils as parts of heating or cooling installations; hot air blowers; water coolers; electric coolers; water control valves for faucets; Regulating accessories for water supply, namely, metered valves; water cooling towers; evaporative air coolers; moisture control devices, namely, separators for the cleaning and purification of air, operating software and electronic controls therefor all sold as a unit; air conditioning apparatus comprised of units having casings, fans, cooling and heating coils sprayers, and pumps; refrigeration equipment, namely, food and beverage chilling units; Refrigerating appliances and installations; air conditioning apparatus; cooling units for industrial purposes; furnaces for industrial purposes