As a veteran-grade combustion control part

Common indicators include hard starts

The SWT1652 is an automatic reset switch

which often indicates an insufficient refrigerant charge or a restriction in the liquid line

Can this be used for sequential control

Velocity Boiler Works (Crown) 14-007 Vacuum Switch 319848-301 As a veteran-grade combustion controlThe Velocity Boiler Works 14 007 Vacuum Switch is an essential safety component engineered for precise differential pressure monitoring in high efficiency heating systems. Known as a cross reference equivalent to Crown 14655005, this switch ensures the inducer motor is generating sufficient static pressure to safely vent combustion gases before the ignition sequence initiates. Built for durability in commercial and residential HVAC internal