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007" opening is calibrated for very low-volume air applications
In high-use pneumatic lines
Test for continuity across the terminals with a multimeter
Temporary bypassing is only for diagnostic pinpointing by qualified technicians
If the system cools down and the switch closes
Reznor 170039 Gasket 007" opening is calibrated forThe Reznor 170039 Gasket is a critical top bottom flue wrapper gasket engineered specifically for high efficiency unit heaters. Designed to maintain a gas tight seal between the heat exchanger and the flue collector box, this OEM Reznor replacement part prevents combustion byproduct leakage, ensuring the unit maintains its rated AFUE performance. This high temperature insulating material is built to withstand extreme thermal cycling without