Title:
HEAT SOURCE UNIT AND REFRIGERATION DEVICE
Document Type and Number:
Japanese Patent JP2023092358
Kind Code:
A
Abstract:
To reduce a phenomenon, such as thermal stress action even when increasing frequency of a refrigerant amount detection operation.SOLUTION: A heat source unit (2) is connected to a utilization unit (5) to constitute a refrigerant circuit (10) performing a refrigeration cycle. The heat source unit (2) includes a compressor (21), a first heat exchanger (24), a receiver (26), a first flow passage (P1) and a first valve (V1). The compressor (21) compresses a refrigerant. The first heat exchanger (24) is used as a condenser for the refrigerant. The receiver (26) stores the refrigerant discharged from the first heat exchanger (24) during a normal operation in which the first heat exchanger (24) is used as the condenser. The first flow passage (P1) bypasses the first heat exchanger (24) and connects the discharge side of the compressor (21) and the receiver (26). The first valve (V1) opens/closes the first flow passage (P1). During a refrigerant amount detection operation for detecting a refrigerant amount in the refrigerant circuit, the first valve (V1) is opened.SELECTED DRAWING: Figure 4
Inventors:
KONDO AZUMA
SAKAE SATORU
TOMITA CHIHARU
UKITA KAZUKI
SAKAE SATORU
TOMITA CHIHARU
UKITA KAZUKI
Application Number:
JP2021207527A
Publication Date:
July 03, 2023
Filing Date:
December 21, 2021
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B41/20; F25B1/00; F25B49/02
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP