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Key Benefits: Balance Ported Design: Compensates for fluctuating head pressures to provide precise superheat control even at low load conditions
Featuring a 1-1/8" ODF solder connection and a full 1-1/8" port size
A failing switch often results in ignition lockout or "pressure switch stuck open" error codes
Energy Efficiency: Enables the control board to make micro-adjustments to fan speed and staging
ensuring your HVAC control system receives accurate data for staging and modulation
Williams 9303 Extension 326070-701 Key Benefits: Balance Ported Design:The Williams 9303 Extension is a professional grade 24 inch vent extension kit engineered specifically for direct vent gravity wall furnaces. This heavy duty galvanized steel vent extension is the standard solution for HVAC installers dealing with deep wall penetrations where standard venting falls short. It is designed for use with wall thicknesses ranging from 15 inches to 24 inches, ensuring a secure and code compliant flue path from the furnace to
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