Smith 100165854 Pilot Assembly is a direct replacement component engineered for high-efficiency natural gas water heaters

Using a genuine OEM Lennox 72L87 ensures that the motor remains within its designated torque range

and GCS series equipment without field modifications

Field-tested for durability in extreme environments

Manual Override: Includes a Hand-Off-Auto (HOA) switch for easier commissioning and troubleshooting without software commands

Tjernlund Products PS1505 Prover Switch 328140-751 Smith 100165854 Pilot Assembly isThe Tjernlund Products PS1505 Prover Switch is a critical safety interlock designed specifically for Tjernlund Auto Draft inducers. As a veteran grade fan proving safety switch, it monitors vacuum pressure within the fan housing to verify that the inducer is operating at peak performance before allowing the burner circuit to fire. This SPST air pressure switch features a non adjustable set point of 0. 05" 0. 02" W. C. (increasing vacuum), ensuring