Resilient Design: Specifically manufactured to maintain structural and electrical integrity in harsh outdoor environments

the switch utilizes a high-integrity silicone diaphragm capable of handling air and combustion by-products that are non-corrosive to silicone

For LP conversions or specific LP-fired boilers

With the furnace off

you must use a model like the TRR00825 or a multi-tap transformer with appropriate primary windings

Carrier LH39WD020 Pilot Orifice Els PW 17895 Resilient Design: Specifically manufactured toAs an HVAC technician, you know that precise gas flow is the difference between a clean burning system and constant service calls. The Carrier LH39WD020 Pilot Orifice is a genuine OEM replacement part designed for high performance gas furnace ignition systems. This specific pilot burner orifice is engineered with a calibrated aperture to ensure the exact metered flow of gaswhether natural gas or propanerequired to maintain a stable and reliable pilot