BCFURNACE
773-033
+5% Tax • Shipping calculated at checkout.
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LENNOX PRESSURE SWITCH 2-STG 0.70" WC / 1.05" WC
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours

LENNOX PRESSURE SWITCH 2-STG 0.70" WC / 1.05" WC Air Pressure Switch, Air Proving
+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
This premium dual-stage air pressure switch is a vital safety component for high-efficiency two-stage gas furnaces. Acting as a combustion air-proving sensor, it monitors the vacuum pressure created by the inducer motor to ensure flue gases are properly venting before allowing the ignition sequence to begin. It features dual setpoints specifically calibrated for low-fire and high-fire cycles, ensuring your HVAC system operates at peak safety and efficiency. Ideal for resolving common heating issues like ignition failure or pressure switch lockout codes, this replacement part provides reliable performance for multi-stage residential heating units.
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