Velocity Boiler Works (Crown) 14-007 Vacuum Switch 326070-701 The clockwise (CW) rotation is

The clockwise (CW) rotation is calibrated for specific aerodynamic profiles to prevent turbulent airflow and excessive vibration that can lead to premature motor bearing failure

These plugs are standard for sealing access points in Bard wall-mount units

Featuring a 10x7 wheel size (nominally 10-5/8" diameter and 7-1/8" width) with a 1/2 inch bore

preventing backdrafts and ensuring consistent combustion regardless of outdoor wind conditions

Velocity Boiler Works (Crown) 14-007 Vacuum Switch 326070-701 The clockwise (CW) rotation isThe Velocity Boiler Works 14 007 Vacuum Switch is an essential safety component engineered for precise differential pressure monitoring in high efficiency heating systems. Known as a cross reference equivalent to Crown 14655005, this switch ensures the inducer motor is generating sufficient static pressure to safely vent combustion gases before the ignition sequence initiates. Built for durability in commercial and residential HVAC internal