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DIFF Subgroup
F24F 11/41

Defrosting; Preventing freezing

Introduced: January 2018

Full Title

Control or safety arrangements > for purposes related to the operation of the system, e.g. for safety or monitoring > Defrosting; Preventing freezing

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 2018.

Child Classifications

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  • F24F 11/42 of outdoor units since 2018 IPC+CPC Available in IPC and CPC
  • F24F 11/43 of indoor units since 2018 IPC+CPC Available in IPC and CPC