US 12,352,483 B1
HVAC line set analyzer system
Brandon Mallory, Queen Creek, AZ (US); and Douglass Macalister, Glendale, AZ (US)
Assigned to MalHack Tool Design, LLC, Queen Creek, AZ (US)
Filed by MalHack Tool Design, LLC, Queen Creek, AZ (US)
Filed on Apr. 18, 2024, as Appl. No. 18/638,839.
Int. Cl. F25B 41/40 (2021.01); F25B 49/02 (2006.01)
CPC F25B 49/02 (2013.01) [F25B 41/40 (2021.01); F25B 2500/01 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/21 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of analyzing an HVAC line set, the method comprising:
coupling a base unit of an HVAC line set analyzer system to an end of tubing of an HVAC line set;
coupling a remote unit of the HVAC line set analyzer system to an opposing end of the tubing of the HVAC line set;
purging and equalizing temperature of the HVAC line set in response to flowing air through the HVAC line set until a temperature sensor in the base unit and a temperature sensor in the remote unit are within a predetermined range from each other;
measuring a length of the HVAC line set in response to pressurizing the HVAC line set by the base unit and measuring a pressure drop created in the HVAC line set by the base unit; and
determining a number of 90-degree bends of the HVAC line set in response to the base unit flowing air through the HVAC line set to establish a static pressure and calculating a difference between a measured static pressure and an expected static pressure.