Pay in 4 interest-free payments of $8.69 Learn more
Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
OEM Thermal Calibration: Factory-set 140°F trip point provides accurate over-temperature protection matched to specific York heat exchanger tolerances
In a typical refrigeration or HVAC circuit
it monitors the heat exchanger for overheating symptoms and will automatically open the circuit to de-energize the gas valve if temperatures exceed the 140°F threshold
Once the water cools
Lennox 26H78 Rollout Switch OEM Thermal Calibration: Factory-set 140°FThe Lennox 26H78 Rollout Switch (catalog number 26H7801) is a critical safety component designed for furnace flame rollout protection. This OEM Lennox part is a manual reset, SPST (Single Pole Single Throw) configuration that actuates at a fixed temperature of 260 degrees F. When the switch senses excessive heat near the burner boxtypically caused by a cracked heat exchanger, blocked flue, or insufficient combustion airit breaks the 24V circuit to the
US$ 84.06
US$ 37.77
US$ 26.96
US$ 165.19
US$ 74.39