For suction line protection or burnout cleanup

Precise Safety Ratings: Engineered with a 150 PSI relief pressure and a 210°F temperature setting to prevent catastrophic tank failure

The interval is set using the onboard pins

and 480V industrial power systems

If the draft exceeds 0

Weil McLain 591-391-795 Wiring Harness Els PW 17895 For suction line protection orThe Weil McLain 591 391 795 Wiring Harness is a specialized OEM replacement component engineered for high efficiency boiler systems. This harness serves as the primary electrical interface between the automatic vent damper motor and the ignition sensing control module. For service contractors, this part is critical for ensuring the safe sequencing of the combustion process, specifically preventing the burner from firing until the damper has reached