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cross-threading
PD515142 is the cross for 51-22858-01
and 321894-706
this specific model is calibrated for 125 PSI system protection
the system enters a safety lockout after a single trial
Lennox 71W49 Rollout Switch 326010-701 cross-threadingThe Lennox 71W49 Rollout Switch is a critical safety component designed for high temperature detection within the burner vestibule of Lennox gas furnaces. This manual reset rollout switch features an SPST (Single Pole Single Throw) configuration and is calibrated to open at a fixed temperature of 210 degrees Fahrenheit. Engineered as a direct replacement part, the 71W49 monitors for flame rollout conditionsoften caused by cracked heat exchangers or
US$ 18.95
US$ 317.33
US$ 18.99
US$ 131.00
