US 12,078,390 B2
Reheat operation for heat pump system
Stephen Blake Pickle, Norman, OK (US); Kerry Lyman Shumway, Norman, OK (US); Thinh Huy Nguyen, Oklahoma City, OK (US); and Bradford Graham Briley, Norman, OK (US)
Assigned to TYCO FIRE & SECURITY GMBH, Schaffhausen (CH)
Filed by Johnson Controls Technology Company, Auburn Hills, MI (US)
Filed on Sep. 1, 2023, as Appl. No. 18/241,314.
Application 18/241,314 is a continuation of application No. 17/344,675, filed on Jun. 10, 2021, granted, now 11,747,053.
Prior Publication US 2023/0408154 A1, Dec. 21, 2023
Int. Cl. F25B 13/00 (2006.01); F24F 3/00 (2006.01); F25B 30/02 (2006.01)
CPC F25B 13/00 (2013.01) [F24F 3/001 (2013.01); F25B 30/02 (2013.01); F25B 2313/027 (2013.01); F25B 2313/0292 (2013.01); F25B 2313/0316 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat pump system, comprising:
a refrigerant circuit comprising a compressor, a first heat exchanger, a second heat exchanger, a reheat heat exchanger, a modulating valve, a reversing valve, and a drain conduit,
wherein the reversing valve is configured to receive refrigerant from the compressor and to adjust between a first configuration to direct the refrigerant from the compressor toward the modulating valve and a second configuration to direct the refrigerant from the compressor toward the first heat exchanger,
wherein the modulating valve is configured to apportion the refrigerant received from the reversing valve between a first flow path extending from the modulating valve to the second heat exchanger and a reheat flow path extending from the modulating valve to the reheat heat exchanger, and
wherein the drain conduit extends from the reheat flow path toward the compressor.