The rolled steel construction and Open Air Over (OAO) enclosure ensure optimal heat dissipation

and NS-ATP7002-0 sensors without requiring extensive rewiring

70" WC Calibration: Specifically tuned to Armstrong’s blower and inducer performance curves

This 1 1/4" NPT gas valve features a rugged aluminum body and NBR seals

Secure Fitment: Engineered to match the specific shaft profiles of Penn control series

Trane SWT3246 Pressure switch 322838-753 The rolled steel construction andFor field technicians and contractors managing critical furnace diagnostics, the Trane SWT3246 Pressure Switch is the direct OEM replacement engineered for precise combustion air monitoring. This single pole single throw (SPST) switch is factory calibrated with a high accuracy 1. 15" WC set point, ensuring the inducer motor generates the necessary vacuum before allowing the ignition sequence to proceed. Designed with a standard 1 4" barb connection,