Title:
AIR CONDITIONING SYSTEM
Document Type and Number:
Japanese Patent JP2019143877
Kind Code:
A
Abstract:
To provide an air conditioning device capable of properly executing a pump-down operation in occurrence of refrigerant leakage.SOLUTION: A CPU 210 sucks a suction pressure Ps when a first prescribed time tp1 has passed from start of a pump-down operation, and determines whether the sucked suction pressure Ps is a second threshold pressure Pst2 or less. When the sucked suction pressure Ps is the second threshold pressure Pst2 or less (ST14-Yes), the CPU 210 terminates the pump-down operation. On the other hand, when the sucked suction pressure Ps is not less than the second threshold pressure Pst2, the CPU 210 determined whether a second prescribed time tp2 has passed from the start of the pump-down operation is determined. When the second prescribed time tp2 has not passed, the CPU 210 continues the pump-down operation. When the second prescribed time tp2 has passed, the CPU 210 terminates the pump-down operation.SELECTED DRAWING: Figure 3
Inventors:
NAKAJIMA TAKESHI
TAMURA HIDEYA
WATANABE MASATOSHI
OGATA KOJI
TOYA KOTARO
DEGUCHI TAKUMA
TAMURA HIDEYA
WATANABE MASATOSHI
OGATA KOJI
TOYA KOTARO
DEGUCHI TAKUMA
Application Number:
JP2018028626A
Publication Date:
August 29, 2019
Filing Date:
February 21, 2018
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
F25B1/00; F24F11/36; F25B49/02
Domestic Patent References:
| JP2015087071A | 2015-05-07 | |||
| JP2016090223A | 2016-05-23 | |||
| JP2013122364A | 2013-06-20 |