Lochinvar & A.O. Smith 100208172 Rollout Switch 318973-401 the Trane CNT01537 is the

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

commercial

often used to verify both the initial pull of the inducer motor and the sustained static pressure during the heating cycle to ensure the system is venting safely

ensuring seamless compatibility with existing wall-mounted controls

specifically designed for these high-output commercial applications

Lochinvar & A.O. Smith 100208172 Rollout Switch 318973-401 the Trane CNT01537 is theThe 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