Title:
ヒートポンプ装置
Document Type and Number:
Japanese Patent JP7211913
Kind Code:
B2
Abstract:
To provide a heat pump device capable of reliably determining the presence/absence of falling of a refrigerant temperature sensor installed in a refrigerant pipe.SOLUTION: A heat pump device calculates the difference between a temperature detected by a refrigerant temperature sensor 26 at the time when a heating operation stop instruction is issued and a temperature detected by the refrigerant temperature sensor 26 during a predetermined time t after the heating operation stop instruction is issued, and when the difference in temperature detected by the refrigerant temperature sensor 26 is less than or equal to a predetermined increase amount ΔT, assuming that the refrigerant temperature sensor 26 has fallen off from a refrigerant pipe, executes error processing for giving a notification on an abnormal state, so that it is possible to reliably determine whether the refrigerant temperature sensor 26 has fallen off from the refrigerant pipe regardless of an output value of the heating operation and an outside air temperature.SELECTED DRAWING: Figure 4
Inventors:
Satoshi Kaido
Hideho Fujita
Hideho Fujita
Application Number:
JP2019152439A
Publication Date:
January 24, 2023
Filing Date:
August 23, 2019
Export Citation:
Assignee:
Corona Co., Ltd.
International Classes:
F25B49/02; F24F11/32; F24F11/88; F25B1/00
Domestic Patent References:
| JP2016121840A | ||||
| JP10238912A | ||||
| JP2009109082A | ||||
| JP5093562A | ||||
| JP2016008739A |
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