US 12,270,564 B2
Air conditioner
Yuji Inada, Fuji (JP); and Ken Miura, Fuji (JP)
Assigned to Carrier Japan Corporation, Tokyo (JP)
Filed by Carrier Japan Corporation, Tokyo (JP)
Filed on Mar. 15, 2023, as Appl. No. 18/184,247.
Application 18/184,247 is a continuation of application No. PCT/JP2020/034967, filed on Sep. 15, 2020.
Prior Publication US 2023/0221030 A1, Jul. 13, 2023
Int. Cl. F25B 49/02 (2006.01); F24F 1/06 (2011.01); F24F 11/65 (2018.01); F25B 41/30 (2021.01); F25B 41/39 (2021.01)
CPC F24F 11/65 (2018.01) [F24F 1/06 (2013.01); F25B 41/30 (2021.01); F25B 49/022 (2013.01); F25B 41/39 (2021.01); F25B 2313/0314 (2013.01); F25B 2600/025 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/21171 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An air conditioner comprising:
an outdoor unit including a compressor, an outdoor heat exchanger, an outdoor fan, an outdoor expansion valve, and a control unit which controls an operation of the compressor;
an expansion valve kit including an indoor expansion valve;
at least one air-handling unit including an indoor heat exchanger and an indoor fan; and
a controller which operates the indoor expansion valve, wherein
the control unit or the controller adjusts, when a parameter value indicating a change in temperature of air blown out of the indoor fan or a parameter value indicating a change in temperature of air sucked by the indoor fan is not within a range defined by a first threshold and a second threshold smaller than the first threshold, each of an opening degree of the indoor expansion valve and a change period of the opening degree or each of an operation frequency of the compressor and a change period of the operation frequency.