Rooftop HVAC Units (rooftop air conditioning unit) is a large and medium-sized overall air-conditioning equipment with its own cooling source and air cooling. It is widely used in the temperature and humidity of large and medium-sized factories and workshops where it is inconvenient to install waterway systems and areas where water resources are scarce And cleanliness and other parameters adjustment.

Its refrigeration, heating, humidification, air supply, air purification, electrical control, etc. are assembled in a horizontal cabinet, and because it is mostly installed on the roof, it is called a rooftop air conditioning unit. Mainly in the Middle East, South America and other regions.

Rooftop air conditioning units can be divided into: single cooling type, electric heating type, constant temperature and humidity type, constant temperature and humidity clean type, heat pump type and other types.