WATERSTAGE™ (Air to Water) What is Automatic Defrosting Operation for? (Outdoor unit)

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Answer

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.

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To avoid this situation an automatic defrost operation is implemented. At this time the melted ice will come out of the unit.


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"WATERSTAGE" is a trademark of Fujitsu General Limited.