Air source heat pumps not only have requirements for refrigeration, but also have requirements for heating energy efficiency. Some low-temperature models also require testing at -12 °C, which is a dual-operating design with higher energy efficiency requirements.
The air source heat pump unit can realize two functions in one set. It provides “cold source” for the system in summer and “heat source” for the system in winter. Traditionally, the central air conditioner is used for heating in the summer. The heating method of the gas boiler is larger than that of the heat pump unit, and the cost of the air source heat pump system is lower than that of the gas boiler and the central air conditioner.
Economics of operating costs
In the winter heating, the heat pump technology is used, and a small amount of electric drive compressor is used to drive a large amount of heat from the air to link the low-temperature heating end heating, and the operation is energy-efficient. In general, the thermal efficiency (energy efficiency ratio) in winter heating can reach 2.5-3.0, and the heat production efficiency is extremely high, which is one of the most efficient ways to save heating.
The air source heat pump unit is cooled in winter and heated in winter. Compared with the summer central air conditioning and cooling winter gas boiler heating method, the annual operating cost is lower than that of the gas boiler plus central air conditioning system. The summer air conditioning heat pump unit and the air cooling unit central air conditioner The operating costs are almost equal. The heating air source heat pump unit in winter saves more than 40% of the operating cost of the gas boiler.
In addition, the air source heat pump has a wider operating range, especially when heating, the ordinary air conditioner will attenuate in the -5 ° C environment, and the low temperature air source heat pump can operate in the ambient temperature range of -30 ° C ~ 43 ° C.