Rooftop Air Conditioning Unit

Rooftop air conditioning unit. Rooftop air conditioning unit，a simple and reliable duct air conditioning system，has been widely used in many comfort areas ，such as factory and supermarket．According to the operating mode of the unit, it is divided into single cooling, heat pump, single cooling + electric heating, single cooling + gas heating. In North America, due to the low price of electricity and sufficient gas source, units with more than 60 kW of cooling capacity are generally heated by electric or gas. At China, in view of the cost of use, it is generally preferred to use heat pump heating.

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Rooftop air conditioning unit

The system diagram of the roof air conditioning unit is shown in Figure 1. The system has the following advantages: the whole air conditioning system is an all-air system, which only contains two parts of the outdoor main unit and the indoor return air duct, the system is simple; the refrigerant takes over a short tube, and There is no energy loss in the process of air-to-air exchange of refrigerant in the traditional air conditioning system, and the system performance is higher; · No need for pumps, cooling towers, fan coils and other ancillary equipment, so the project cost is reduced, the installation period is shortened, and there is no leakage in the room.indoor airless fan and motor, quiet operation; host placed on the roof, no need for machine room, saving installation space, greatly improving the use rate of the building; can easily introduce fresh air without special new fans and new air ducts, fully Meet the high requirements of indoor air quality; all refrigerant connecting pipes are welded before leaving the factory, and have been rigorously tested, no welding on site, greatly reducing the possibility of refrigerant leakage, the system is more environmentally friendly; especially suitable for the transformation of air conditioning systems, only The original return air duct can be led to the roof connection host, and the replacement has been The host to the end of life is also very convenient, to relieve the user's worries.