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1. The heat pump unit has auto antifreeze program. When the unit is working normally, there will not be
freezing.
2. When the ambient temperature is minus, and the unit stops for over 3 hour, or the unit stops long term
when power off, the user is advised to drain all the water inside popes through the valve which connected to
water outlet to avoid frost crack.
3. If the unit is under off season, should cut off power and take the protection cover outside of unit when
necessary.
4. Before restart the unit which has drained out all the water inside, the user is advised to reinstall the unit
and adjust program, further more need complete check of the system.
5.4
NOTS for Anti-Freezing in Winter
The filter connected with pipes should be cleaned regularly to make sure the water inside systems clean,
