The 146-31-010 (also referenced as 14631010) is an OEM air pressure switch manufactured for high-efficiency heating equipment. It functions as a crucial safety interlock that monitors draft/vent pressure to ensure proper combustion venting before allowing the appliance to fire.
pecifications
Calibration Range: 1.35" W.C. (Water Column)
Housing Material: Durable zinc/steel body with a flexible internal stainless steel diaphragm
Weight: ~0.16 lbs (72.57 g)
Compatibility: Designed specifically for Utica and Dunkirk Q90 series heating equipment
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