Secondly, the strong rain and snow weather is bound to bring a wide range of cooling, so the defrosting and anti freezing of air source heat pump heating unit is also very important. When the main engine of pevo air source heat pump heating unit works, condensate will be generated. If the condensate drainage is not smooth enough, the equipment will freeze. Therefore, the unique jet enthalpy series air source heat pump heating unit adopts the unique jet enthalpy increasing + flash evaporation technology, which is specially designed for the climate in cold regions, and realizes the ultra wide operating environment from - 30 ℃ to 43 ℃. Through the air jet enthalpy increasing technology, the compressor can obtain heat efficiently in ultra-low temperature environment. Compared with the underfloor heating pump traditional unit, it can improve the heating capacity by 15%, and has unique snow resistance and freezing resistance The design is suitable for refrigeration and heating in areas above - 30 ℃. If the frosting of air source heat pump heating unit is serious, manual defrosting can be carried out by wire controller "forced defrosting".
With the national policy to promote coal to electricity, many people have responded to the call of the state, have abandoned coal from the air energy heat pump water heater, the northern rural "coal to electricity" use ultra-low temperature air energy heat pump heating, most of the users share a set of transformer, when the winter heating season, all ultra-low temperature air source heat pump heating units start at the same time, it is likely that instantaneous current will occur And causes the grid voltage to drop suddenly. When the power of the air source heat pump heating unit remains unchanged, the voltage will decrease and the current will increase. When the current protection value of the air source heat pump unit is exceeded, the control panel will stop the heat pump supplier compressor according to the set current protection value.
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