US 11,719,453 B2
System and method for heating and cooling
Masahiro Oka, Osaka (JP); Junichi Shimoda, Osaka (JP); Takashi Shimamura, Osaka (JP); Yuuji Yamada, Osaka (JP); Hideyuki Nakagawa, Houston, TX (US); Hiroyuki Imada, Osaka (JP); David Palazzolo, Houston, TX (US); Joseph Kelly Hearnsberger, Katy, TX (US); Sriram Venkat, Katy, TX (US); Chris Bellshaw, Houston, TX (US); and John Clements, Atlanta, GA (US)
Assigned to Daikin Industries, Ltd., Osaka (JP); and Daikin Manufacturing Company, L.P., Waller, TX (US)
Filed by Daikin Industries, Ltd., Osaka (JP); and Daikin Manufacturing Company, L.P., Waller, TX (US)
Filed on Mar. 1, 2021, as Appl. No. 17/189,208.
Application 17/189,208 is a division of application No. 16/250,900, filed on Jan. 17, 2019, granted, now 10,948,208.
Claims priority of provisional application 62/619,824, filed on Jan. 21, 2018.
Prior Publication US 2021/0180818 A1, Jun. 17, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F24F 11/46 (2018.01); F24F 1/08 (2011.01); F24F 1/32 (2011.01); F24F 3/06 (2006.01); F24F 11/64 (2018.01); F24F 11/65 (2018.01); F24F 11/80 (2018.01); F24H 3/00 (2022.01); G05B 19/042 (2006.01); F25B 30/02 (2006.01); F25B 49/02 (2006.01); F25B 13/00 (2006.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01); F24F 110/22 (2018.01); F24F 140/30 (2018.01); F24F 140/50 (2018.01); F24F 140/60 (2018.01)
CPC F24F 11/46 (2018.01) [F24F 1/08 (2013.01); F24F 1/32 (2013.01); F24F 3/065 (2013.01); F24F 11/64 (2018.01); F24F 11/65 (2018.01); F24F 11/80 (2018.01); F24H 3/00 (2013.01); F25B 13/00 (2013.01); F25B 30/02 (2013.01); F25B 49/02 (2013.01); G05B 19/042 (2013.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01); F24F 2110/22 (2018.01); F24F 2140/30 (2018.01); F24F 2140/50 (2018.01); F24F 2140/60 (2018.01); F24F 2221/54 (2013.01); F25B 2313/0233 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/2513 (2013.01); G05B 2219/2614 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An HVAC system for providing conditioned air to a structure:
an outdoor unit configured to operate a compressor at variable speeds;
a plurality of indoor units configurable to provide conditioned air to the structure, wherein the plurality of indoor units comprises:
a ducted indoor unit comprising a first expansion valve for controlling refrigerant flow; and
a ductless indoor unit comprising a second expansion valve for controlling refrigerant flow; and
a gas furnace.