ADJUSTABLE AIR SENSING SWITCH
These switches are designed to replace a wide variety of air-sensing switches found in residential and light commercial applications, including furnaces, electronic air cleaners and humidifiers. Both models are provided with an SPDT switch that can be actuated by positive or negative pressure, or by pressure differential. Highly accurate, these switches are practically insensitive to temperature change with an opening temperature range of -40°F to 190°F. They are UL and CSA approved. Each switch is provided with mounting hardware and an adjustment tool for easy installation and calibration. Air sample line connectors will accept 1/8", 1/4" or 3/8" tubing. Electrical rating: 5 amp noninductive 120-277 VAC. 1 amp pilot duty 120 VA.