While a DPDT relay can theoretically handle the tasks of an SPDT

This technical component is engineered specifically for Reznor VR models and UDAP series unit heaters

Built to industrial standards

reducing false triggers caused by dust or pressure changes

For contractors requiring a dependable solution for site installations

Modine 5H0722750001 Pressure Switch 30067439-890 While a DPDT relay canThe Modine 5H0722750001 Pressure Switch is a critical safety component designed for high performance Modine unit heaters and commercial HVAC systems. This SPST pressure switch is factory calibrated to a . 78" WC (Water Column) set point, ensuring precise monitoring of the draft inducer blower. As a direct OEM replacement for 5H72275 1, this part facilitates a seamless drop in installation for technicians troubleshooting ignition failures or inducer