US 11,885,524 B2
HVAC system using reheat from alternative heat source
Nicholas P. Mislak, Bel Air, MD (US); Ryan L. Snider, York, PA (US); and Karla D. Alvarez Cavazos, York, PA (US)
Assigned to Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed by Johnson Controls Technology Company, Auburn Hills, MI (US)
Filed on Oct. 13, 2020, as Appl. No. 17/069,681.
Claims priority of provisional application 62/916,675, filed on Oct. 17, 2019.
Prior Publication US 2021/0116136 A1, Apr. 22, 2021
Int. Cl. F24F 3/052 (2006.01); F24F 11/86 (2018.01); F24F 11/85 (2018.01)
CPC F24F 3/0525 (2013.01) [F24F 11/85 (2018.01); F24F 11/86 (2018.01)] 6 Claims
OG exemplary drawing
 
1. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
a refrigerant circuit configured to circulate a refrigerant to condition a first air flow within an air flow conduit in a reheating mode of the HVAC system;
an evaporator of the refrigerant circuit, wherein the evaporator is configured to place the refrigerant in a first heat exchange relationship with the first air flow to cool the first air flow in the reheating mode;
a reheat heat exchanger fluidly separate from the refrigerant circuit, wherein the reheat heat exchanger is configured to place a waste fluid in a second heat exchange relationship with the first air flow to reheat the first air flow cooled by the evaporator in the reheating mode;
a condenser of the refrigerant circuit, wherein the condenser is configured to place the refrigerant in a third heat exchange relationship with a second air flow to cool the refrigerant in the reheating mode; and
a reservoir fluidly coupled to the reheat heat exchanger and configured to store the waste fluid for supply to the reheat heat exchanger.