US 12,474,076 B2
System and method for operating a compressor of an HVAC system
Ewin Ramster Melwin, Navi Mumbai (IN); Jeremy Ryan Smith, Park City, KS (US); Tejas Mahendra, Pune (IN); Pushpak Macchindra Doiphode, Thane (IN); Narendra Madhukar Jagtap, Pune (IN); Rahul Krushna Salunke, Aurangabad (IN); and Naveen Ramanagouda Patil, Pune (IN)
Assigned to TYCO FIRE & SECURITY GMBH, Neuhausen am Rheinfall (CH)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Mar. 30, 2023, as Appl. No. 18/128,803.
Claims priority of application No. 202221019315 (IN), filed on Mar. 31, 2022.
Prior Publication US 2023/0349583 A1, Nov. 2, 2023
Int. Cl. F25B 49/02 (2006.01); F24F 11/86 (2018.01); F24F 110/12 (2018.01)
CPC F24F 11/86 (2018.01) [F25B 49/022 (2013.01); F24F 2110/12 (2018.01); F25B 2500/19 (2013.01); F25B 2600/01 (2013.01); F25B 2600/0253 (2013.01); F25B 2700/171 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2106 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A heating, ventilation, and air conditioning (HVAC) system, comprising:
a variable capacity compressor; and
a controller communicatively coupled to the variable capacity compressor and configured to:
receive a call for conditioning from a non-communicating thermostat:
initialize operation of the variable capacity compressor in response to receipt of the call for conditioning:
receive data indicative of an operating parameter of the HVAC system;
determine an upper suction pressure limit of the HVAC system based on the data;
determine a lower suction pressure limit of the HVAC system based on the data;
determine a target suction pressure value, wherein the target suction pressure value is less than or equal to the upper suction pressure limit and is greater than or equal to the lower suction pressure limit; and
modulate operation of the variable capacity compressor such that a detected suction pressure of the HVAC system approaches the target suction pressure value.