Versatile Mounting: The 4-inch probe length and 1/8" NPT fitting facilitate easy installation in standard pipes and tanks

Common indicators include the boiler inducer motor running continuously without the burner igniting

this assembly is the primary solution for restoring factory-spec performance in residential heating systems

Common Questions: Can I use this switch if my current unit is set to a different WC

High-Durability Element: Constructed from silicon carbide to withstand repeated thermal cycling in demanding HVAC environments

Johnson Controls A19QSC-1 Temperature Control Els PW 17895 Versatile Mounting: The 4-inch probeThe Johnson Controls A19QSC 1 is a commercial grade, remote bulb temperature control designed for demanding environments. This mechanical temperature control features a single pole, double throw (SPDT) switch configuration, providing versatile heating and cooling application support. Built with a NEMA 4X watertight enclosure, the A19QSC 1 offers superior protection against corrosion and moisture, making it ideal for cooling tower sump heaters and