公开(公告)号：EP4227603A1

公开(公告)日：2023-08-16

申请号：EP22156342.2

申请日：2022-02-11

Applicant: Danfoss A/S

Inventor： LARSEN, Lars Finn Sloth ,  LUCKMANN, Ejnar ,  MOOS, Hans

IPC: F25B5/02 ,  F25B49/00 ,  F25D29/00 ,  F25B49/02

Abstract: A method for operating a vapour compression system (1) is disclosed. A cut-in temperature, a high temperature alarm limit and a high temperature alarm delay time are set. A maximum acceptable relative decay value is derived, based on the high temperature alarm limit and the high temperature alarm delay time. The vapour compression system (1) is operated while monitoring a temperature inside a refrigerated volume and continuously deriving a weighted mean temperature prevailing inside the refrigerated volume, during a moving time window of a predefined length. In the case that the weighted mean temperature inside the refrigerated volume exceeds the cut-in temperature, a timer is started, and a delay time is derived, based on the weighted mean temperature and the maximum acceptable relative decay value. A warning is generated when the timer reaches the derived delay time.