WATERSTAGE™ (Air to Water) What is Automatic Defrosting Operation for? (Outdoor unit)
With low outdoor temperature in combination with high air humidity water turns into ice crystals due to a low surface temperature at the heat exchanger . If this increases to much, this will reduce the efficiency.
- To avoid this situation an automatic defrost operation is implemented. At this time the melted ice will come out of the unit.
- "WATERSTAGE" is a trademark of Fujitsu General Limited.