壁挂炉正确的防冻措施:

　　Cb correct anti-freezing measures: 

　　家中长期无人时，可将壁挂炉及采暖系统中的水全部排空，并切断壁挂炉的水、电、气源，以保证整体系统安全。

　　Home empty for a long time, can send the cb and the water in the heating system all empty, and cutting off the water, electricity, gas source in cb, to ensure the safety of the whole system. 

　　Home in a short time (within a week) without the person, we will be hanging furnace heating temperature to low temperature operation state, the wall hanging furnace with the lowest temperature will be run, returned home after adjustment for the normal heating temperature.