DEVICE FOR ASSESSING CORRESPONDENCE RELATIONSHIP OF FREEZING SYSTEM, FREEZING SYSTEM, AND PROGRAM
|Numéro de publication||2020/121363|
|Statut||Délivré - en vigueur|
|Date de dépôt||2018-12-10|
|Date de publication||2020-06-18|
|Propriétaire||HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)|
AbrégéThis freezing system is configured so that it is possible to quickly and reliably assess a correspondence relationship between an outdoor unit and an indoor unit. Therefore, this device (10, 80) for assessing a correspondence relationship of a freezing system comprises: an outdoor unit start-up part (12) for starting up a freezing cycle of a target outdoor unit, which is at least one outdoor unit; an expansion valve control unit (82) that sets expansion valves (62) in a plurality of indoor units to an opened state when the target outdoor unit starts up, and that, when a change occurs in a refrigerant-related temperature in any indoor unit, sets the expansion valve (62) of the corresponding indoor unit to a closed state; and a correspondence relationship assessment unit (14) that assesses that the target outdoor unit and the indoor unit of which the expansion valve (62) was closed are connected when a prescribed change occurs in a refrigerant pressure in the target outdoor unit.
Classes IPC ?
- F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
- F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
- F25B 13/00 - Compression machines, plants or systems, with reversible cycle
- F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems