Lochinvar & A.O. Smith 100208172 Rollout Switch 318973-401 it specifically replaces the Honeywell

it specifically replaces the Honeywell WV8840B5069 found in many A

commercial

and Johnstone Supply

the HK08ZZ030 offers a robust solution for restoring factory-standard HVAC automation

the Trane CNT01537 is the updated manufacturer part number and is functionally identical to the 1537 as a drop-in replacement

Lochinvar & A.O. Smith 100208172 Rollout Switch 318973-401 it specifically replaces the HoneywellThe Lochinvar & A. O. Smith 100208172 Rollout Switch is a critical safety component designed for manual reset operation in high efficiency gas fired boilers and water heaters. Rated at a 250F trip temperature, this flame rollout limit switch monitors the burner enclosure for abnormal thermal conditions. If combustion flames spill out of the heat exchangeroften due to a cracked heat exchanger, blocked venting, or a failing inducer motorthe switch opens