Heavy-Duty Construction: Equipped with automatic overload protection and high-grade sleeve bearings to handle the thermal stresses of restricted duct systems

This 40 amp magnetic contactor operates on 208/240V coil voltage

Key Benefits Integrated Blow-off Control: Includes a factory-mounted bronze ball valve for rapid screen flushing and simplified maintenance

efficient ignition and long-term heat exchanger integrity

Precision Control: The 5 to 10 PSI spring range ensures accurate modulation for VAV air terminal unit recalibration

Dwyer Instruments ASG Generator R-134A Heavy-Duty Construction: Equipped with automaticThe Dwyer Instruments ASG Analog Signal Generator is a critical diagnostic tool for any HVACR contractor or building automation technician. This handheld, pocket sized device simplifies the troubleshooting of 0 10Vdc and 0 20mA circuits, providing a reliable source for calibrating transmitters, transducers, and actuators in the field. Built for efficiency, the ASG features an LED bar graph that gives you immediate visual confirmation of the signal