This OEM Lennox replacement part is a normally closed limit control that functions on a temperature-dependent circuit: it is engineered to open when the internal cabinet or heat exchanger temperature reaches 180°F and automatically resets (closes) once the temperature drops to 150°F

this replacement knob retains the same physical dimensions and stem attachment for both the original series and the newer Lead-Free (LF) versions of the Watts 70A valves

Can this switch be used in a single-stage furnace

The TRR0465 is specifically designed for 120V primary circuits

Common Questions Is the Honeywell SP3000-2 compatible with older 193987GA sensors

Weil McLain 510-312-041 Aquastat Els PW 17895 This OEM Lennox replacement partThe Weil McLain 510 312 041 Aquastat is a mission critical hydronic temperature controller engineered for precise thermal regulation within Weil McLain boiler systems, including the EGH series. This OEM immersion controller utilizes an integrated capillary sensor to monitor the heating medium, providing high accuracy feedback to the burner and circulator circuits. With an adjustable temperature range of 100F to 240F, this unit ensures the system