McDonnell & Miller RS-1-HP Sensor 30067439-890 this board provides the critical

this board provides the critical logic required for precise fan sequencing and blower motor management

If the vacuum is present but the SPST switch remains open

The SPST switch action is designed to open on temperature rise

the TC-5231 provides the rugged reliability required for mission-critical HVACR infrastructure

Verify that your motor has a 7/8" keyed shaft

McDonnell & Miller RS-1-HP Sensor 30067439-890 this board provides the criticalThe McDonnell & Miller RS 1 HP Sensor (Part #176199) is a professional grade single level high pressure remote sensor probe holder designed for critical liquid level monitoring in boilers and pressure vessels. Engineered by Xylem for industrial field service, this remote sensor probe holder features a robust 3 4" NPT tank connection and is housed in a NEMA 1 enclosure. Built to handle high pressure boiler sensor applications, the RS 1 HP supports