This SPDT high gas pressure switch features an adjustable range of

Can this be used for standard air conditioning

the 174810 relay prevents short-cycling

311619A is identical to 311619A/U

the 0556003 is the designated updated replacement for the L100XL-3-150

White-Rodgers 1F85U-42PR Thermostat Els PW 17895 This SPDT high gas pressureThe White Rodgers 1F85U 42PR is a versatile 80 Series universal programmable thermostat engineered for high performance control across a wide range of HVAC configurations. Supporting up to 4 Heat 2 Cool heat pump stages or 2 Heat 2 Cool conventional systems, this unit provides the flexibility professional contractors require for diverse residential and light commercial job sites. It features a high contrast 5 inch backlit display for superior