The building area of the air source heat pump heating project of Hebei Huashang Printing Plant is about 18000 square meters. In response to the policy of clean energy heating in the northern region, the system uses Kcalin air source heat pump and terminal fan coil to realize the winter heating and summer cooling requirements of the printing plant's office environment, realizing clean energy heating, replacing the traditional coal-fired boiler heating method, with good heating effect in winter, high comfort and no air pollutants, Realize zero pollution and obvious energy conservation and environmental protection benefits. The project was completed and officially put into use in October 2018.