CPC Main Group
F25D 21/00 Defrosting; Preventing frosting; Removing condensed or defrost water (removing ice or water from heat-exchange apparatus in general F28F17/00; heating arrangements specially adapted for transparent or reflecting areas H05B3/84)
5 direct subcodes
Child Classifications
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- F25D 21/02 Detecting the presence of frost or condensate
- F25D 21/04 Preventing the formation of frost or condensate
- F25D 21/06 Removing frost (defrosting cycles F25B47/02)
- F25D 21/14 Collecting or removing condensed and defrost water; Drip trays