Antunes Controls 803112601 Pressure Switch Els PW 17895 it allows the unit to

it allows the unit to modulate firing rates based on accurate supply and return water temperature differentials

For 12-inch diaphragm models like the 243-12

A healthy Bard flame sensor should typically provide a steady reading above 1

typically signifying the inducer is creating the necessary vacuum

Antunes Controls 803112601 Pressure Switch Els PW 17895 it allows the unit toThe Antunes Controls 803112601 Pressure Switch (Model HGP A) is a high performance safety interlocking device engineered for industrial combustion systems and gas trains. This manual reset SPDT pressure switch is designed to monitor gas pressure and instantly break the electrical control circuit if levels rise above the adjusted setpoint. With a field adjustable range of 2 16" W. C. (50 400 mm W. C.), it provides precise high gas pressure limit