US 11,668,505 B2
HVAC heating system and method
Charles A. Cluff, Zionsville, IN (US); Jun Pyo Lee, Zionsville, IN (US); Sathish R. Das, Indianapolis, IN (US); and Charles A. Seymour, Clayton, IN (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Appl. No. 16/755,021
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Oct. 3, 2018, PCT No. PCT/US2018/054132
§ 371(c)(1), (2) Date Apr. 9, 2020,
PCT Pub. No. WO2019/074738, PCT Pub. Date Apr. 18, 2019.
Claims priority of provisional application 62/570,292, filed on Oct. 10, 2017.
Prior Publication US 2020/0348062 A1, Nov. 5, 2020
Int. Cl. F25B 49/02 (2006.01); F25B 31/00 (2006.01)
CPC F25B 49/022 (2013.01) [F25B 31/002 (2013.01); F25B 2313/008 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/2115 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of heating a component within a heating, ventilation and air conditioning (HVAC) system comprising:
maintaining a non-heating condition of the HVAC system component when the HVAC system component is in a non-operational state;
determining when the HVAC system component will switch from the non-operational state to an operational state, the determination based on a threshold parameter being met; and
operating a heating device from the non-heating condition to a heating condition to heat the HVAC system component from a temperature to a target temperature suitable for the operational state of the HVAC system component;
wherein determining when the HVAC system component will switch from the non-operational state to the operational state comprises monitoring ambient temperature of the environment surrounding the HVAC system component relative to a known lockout temperature threshold of the heating system.