Winter central air conditioning how to prevent freezing
A1: In winter, when the temperature in the mainframe room is below 0℃, anti-freezing measures should be taken for the mainframe, chilled water pump, and cooling water pump piping system.
1, the host of anti-freezing: the host condenser, evaporator import and export valves closed, waterproof valve and venting valve open, and then the use of compressed air or nitrogen will be blown out of the residual water;
2, water pump and pipeline antifreeze: keep the freezing/cooling water valve and pipeline open, the lowest...