making it ideal for precision air and water regulation

77" WC (water column) trip point

verify the actual pressure at the switch's reference ports

including high-capacity units ranging from PV30 to PV400

potentially allowing contaminants into the rest of the pneumatic loop

Modine 5H0750300004 Pressure Switch 30067439-890 making it ideal for precisionEnsure your Modine unit heater performs at peak efficiency with this Modine 5H0750300004 Pressure Switch. As a veteran grade OEM replacement part, this SPST pressure switch is factory calibrated to a . 40" WC setpoint, providing critical safety monitoring of the inducer motors draft. When your heater throws a diagnostic codetypically a one flash or two flash LED signal on the integrated control boardit often indicates a failure in the combustion air