This hot surface ignitor is engineered for localized heat concentration

The internal rubber seat poppet ensures a tight seal and consistent lock-up characteristics

Using it with higher-pressure refrigerants like R-410A may exceed the 500 psi limit and damage the internal calibration

this collector box ensures a reliable seal between the heat exchanger and the inducer motor assembly

suitable for driving large relay banks

Armstrong International C3484-1 Valve and Seat Els PW 17895 This hot surface ignitor isThe Armstrong International C3484 1 Valve and Seat is a critical replacement component engineered for high performance steam trap repair. Designed specifically for Float & Thermostatic steam traps, this hardened stainless steel assembly ensures a tight, leak proof seal to prevent live steam loss and maintain system efficiency. The C3484 1 is the direct OEM replacement for Armstrong B2, BI2, B3, and BI3 series traps operating at 15 PSI, as well as A5