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it monitors the venturi pressure across the combustion blower to ensure the heat exchanger is properly vented before allowing the ignition sequence to proceed
non-positional design allows for versatile mounting inside any control panel
Always verify the orifice size and gas pressure at the manifold when installing
Calibrated specifically for liquid propane (LP) gas flow requirements to prevent over-firing
Schneider Electric (Barber Colman) AL-171 Air Valve Els PW 17895 it monitors the venturi pressureThe Schneider Electric (Barber Colman) AL 171 Solenoid Air Valve is a reliable 120 Vac industrial component engineered for precise pneumatic signal control in HVACR and fluid power systems. Featuring an durable plastic open frame design, this 0. 3 scfm valve is built for vertical mounting in NEMA 1 environments, handling operating pressures up to 30 psi. As a primary HVAC solenoid air valve replacement, the AL 171 provides seamless continuity for
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