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Ensure your control board is outputting the correct voltage and that the thermocouple or flame sensor is functioning correctly during the ignition sequence
Collapsible pleated design allows for compact storage and easy installation into existing frames
depending on the specific model requirements of your York unit
10" WC (Water Column) trip point
Venstar VST4900 Thermostat 323080-701 Ensure your control board isThe Venstar VST4900 Thermostat is a professional grade digital programmable thermostat engineered for high performance climate management in residential and light commercial applications. Serving as the primary Venstar VST2900 replacement, this Slimline Series controller handles complex HVAC configurations, including 4 stage heating and 2 stage cooling. Technicians will find the non volatile memory critical for retaining program settings during power
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