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When using air source heat pump hot and cold water units should pay attention to what issues?
The use of air-source heat pump chiller units should meet the following principles: 1 more suitable for small and medium summer hot summer and cold areas of public buildings; 2 summer hot and cold winter areas should be used to heat load selection, less than the capacity of cold water cooled Unit is available; 3 In cold area, it is not advisable to use it when the coefficient of winter operation is lower than 1.8 or when it has centralized heat source and gas source Note: The coefficient of operation in winter = the unit heat output (KW) in winter outdoor air- Unit input power ã€Explanation】 This section presents the economical and reasonable application of air source heat pump, energy-saving operation of the basic principles: 1. Compared with water-cooled units, air-source heat pump high power consumption, the price is high, but it has the heating function. In the hot summer and cold winter zone where the heat source is not concentrated, it is more suitable for the hot and cold winter areas, especially for the cooling and heating of the units and the cooling and heating loads in summer and winter of the building and air-conditioning units in the area, Economical, rational use of electricity considerations, daytime use of medium and small public buildings most suitable; 2. In the hot summer and warm winter area, due to the small amount of heat required and heating time is short, the heat required to select the air source heat Winter heating, less than the amount of cold water in summer to make up for the use of water-cooled units, saving investment and operating costs; 3. The use of cold regions must consider the unit economy and reliability, when the outdoor temperature at the end of the operating conditions, COP at the end of the heating, loss of energy-saving advantages of heat pump units should not be used.