How to maintain induction heating equipment in cold winter?

When the induction heating equipment is used in the cold winter, the key point of protection is antifreeze. We all know that after the minor cold, it will be the season of nine cold days and freezing weather! So how to prevent freezing of induction heating equipment in winter in the north?
The following 2 points should be kept in mind:
1. It is necessary to keep the circulating water pump in a normally open flow state, and antifreeze measures such as heat preservation and heat tracing for each pipeline are in place.
2. If the water pump does not keep running normally, you can drain the water in the out-of-service equipment after get off work every day, and be sure to blow out the water inside with a water gun to prevent freezing.