Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 Direct Replacement: Seamlessly replaces the

Direct Replacement: Seamlessly replaces the F602-03WGR without requiring piping modifications

It should be independently supported and pitched to the 3/8" drain to prevent backpressure or condensate load on the valve internals

to accurately sense and limit the pressure entering the compressor crankcase

For 750mV thermopile systems

eliminating the need for complex field balancing or alignment

Lochinvar & A.O. Smith 100277755 Pressure Switch 321142-301 Direct Replacement: Seamlessly replaces theThe Lochinvar & A. O. Smith 100277755 Pressure Switch is a mission critical component engineered for precise atmospheric monitoring in high efficiency boilers and water heaters. Calibrated to a . 95" WC (Water Column) set point, this OEM replacement pressure switch ensures the inducer fan is generating the correct static pressure before allowing the ignition sequence to proceed. As a veteran grade HVAC induction switch, it is designed to prevent