the 100277952 is the manufacturer-designated direct replacement and is fully compatible with systems requiring the 100171899 part number

this auto reset limit switch is ideal for board mount applications where space is at a premium but reliability is non-negotiable

The integrated circuit breaker will trip to protect the 24 VAC secondary winding

this is an X-13 motor board designed for constant torque motors that use 24V discrete taps

effectively reducing operational vibration and noise

Williams P101600 Gasket 321702-401 the 100277952 is the manufacturer-designatedThe Williams P101600 Gasket is a critical OEM replacement part designed for integration within the combustion chamber and venting systems of Forsaire Counterflow Direct Vent Furnaces. For technicians servicing Williams wall furnaces, maintaining a gas tight seal is paramount to preventing CO leakage and ensuring the venting system operational integrity. This high temperature gasket is fabricated from industrial grade heat resistant material, capable