Description
The A.J. Antunes 804112106 Dual Pressure Switch is a control part that is installed in the HVAC system to detect and react to the presence of high and low air or gas pressure levels. It measures pressures between 2-14 inch on the low side and 10 and 50″ WC on the high side which can be utilized as safety for combustion or ventilation. It is fitted on air handlers or furnaces commercially and is connected to control circuitry to either interrupt or allow operation at preset pressure levels.
