When temperatures hit the 210°F ceiling

significantly reducing energy waste in variable primary flow systems

The Weil McLain 511-624-510 is a high-precision pressure differential switch engineered specifically for residential and light commercial hydronic heating systems

Durable Construction: Heavy-duty bronze body resists corrosion and mineral buildup common in steam heating applications

preventing nuisance shutdowns and intermittent combustion issues

Johnson Controls M9108-AGD-2 Actuator R-410A When temperatures hit the 210°FThe Johnson Controls M9108 AGD 2 is a robust non spring return direct coupled actuator engineered for precise control of dampers and valves in commercial HVAC systems. Operating on 24VAC or 24VDC power, this unit provides 70 lb in torque (8 Nm), making it an ideal replacement for medium sized air handling units and zone control applications. It features floating or ON OFF control logic and includes an integrated 135 ohm potentiometer for feedback or