The 180 PSI setting is the standard industry benchmark for R-22

Common Questions: Is this compatible with 24V low-voltage control systems

A healthy signal should read 1

As a Uni-Kit model (SP-199-60)

and auxiliary heat signal simultaneously

York S1-363-93521-705 Heat Exchanger R-410A The 180 PSI setting isThe York S1 363 93521 705 Heat Exchanger is a critical 5 tube furnace component designed for precise compatibility with specific York, Luxaire, and Coleman gas fired heating units. Engineered to handle high thermal stress, this replacement heat exchanger ensures efficient heat transfer and combustion gas isolation within the HVAC primary heat exchanger assembly. Given the structural requirements of multi stage and single stage furnaces, the S1 363