Pay in 4 interest-free payments of $246.91 Learn more
Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
Its durable construction is built to withstand the corrosive environment of high-efficiency 90%+ AFUE furnace systems
Corrosion Resistance: The high-grade plastic body construction protects against environmental degradation in diverse mechanical rooms
High Differential Pressure: Supports a maximum opening differential pressure (MOPD) of up to 38 bar with a 10W AC coil
Featuring a DPST (Double-Pole Single-Throw) switch mechanism
This "short cycling" is frequently caused by a dirty or failing furnace flame sensor that cannot maintain a consistent signal to the control board
McDonnell & Miller 157S-R-M Pump Controller 30067439-890 Its durable construction is builtThe McDonnell & Miller 157S R M (Part Number 177306) is a heavy duty, float operated low water cut off and pump controller designed for commercial and industrial steam boilers. This unit features an integral water column and alternate tappings to simplify installation on various boiler configurations. The 157S R M is functionally identical to the 172817, utilizing a snap acting SPDT switch that eliminates the need for mercury while providing reliable
