This SPDT (Single Pole Double Throw) controller features a liquid-filled sensing element with a 1 3/8" x 2 1/4" coiled bulb and capillary

For applications involving sea water or corrosive fluids

the S1-015-04361-001 is the manufacturer-designated direct replacement

this component (also identified as part number 102515-01) ensures that exhaust gases are properly contained within the collector box before being vented through the inducer motor

or rapid "running out" of hot water

Lennox 87W50 Motor 326058-755 This SPDT (Single Pole DoubleThe Lennox 87W50 Motor is a high efficiency 3 4 HP 208 230V programmable blower motor designed specifically for precision air delivery in residential and light commercial HVAC systems. This OEM Lennox replacement motor utilizes advanced constant torque or constant airflow logic to maintain optimal static pressure performance across varying ductwork conditions. As a programmed blower motor, it arrives factory calibrated with specific performance