If the switch remains open or fails to close at 110°F

this kit enables precise pressure regulation within an 8" to 11" WC adjustment range

Precision dimensions allow for accurate seating and consistent bolt loading during installation

The Mueller W04017 3/4" Tee is a professional-grade wrot copper solder joint fitting engineered to ASME B16

Trane SWT1276 Limit Switch If the switch remains openAs a seasoned tech, you know that keeping a furnace from over firing starts with a reliable safety circuit. The Trane SWT1276 is a professional grade 110 140F Auto Limit Switch designed to protect the secondary heat exchanger and surrounding components from thermal runaway. This OEM Trane replacement part features a fixed 140F high limit trip point and an automatic reset that closes the SPST normally closed (NC) circuit once the plenum temperature