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Common Questions What is the primary function of the variable pitch on the Lennox 53J96
Heat Resistance: Constructed from high-temperature alloys to resist oxidation and thermal stress
This is the manufacturer-recommended direct replacement
This component serves as the direct replacement for Trane RLY1003
Efficient Condensate Removal: Equipped with a timed electric condensate drain and centrifugal separator for zero-moisture carryover
Williams 7735 Limit Switch 321042-401 Common Questions What is theThe Williams 7735 Limit Switch is a critical OEM replacement part designed for high temperature safety regulation in Williams Forsaire Counterflow top vent furnaces. Engineered with a 330F fixed temperature setpoint and a 5 inch insertion depth, this high limit safety control ensures the combustion chamber does not exceed safe operating parameters. When air temperature reaches the 330F threshold, the switch opens the electrical circuit to the gas