Precise Outdoor Reset: Enables the heating system to modulate output based on external air temperature

Durable Construction: Features high-grade steel and copper components designed for longevity in high-heat environments

While the internal spring range is 8-13 PSIG

Technical Reliability: The L6189C series is a professional-grade standard for high-limit temperature control in hydronic systems

specifically designed to support rotational motion and stabilize drive shafts in heavy-duty equipment

Browning BX123 Belt 319825-402 Precise Outdoor Reset: Enables theExperienced HVACR contractors know that a belt failure in a rooftop unit or heavy industrial blower means immediate downtime. The Browning BX123 Gripnotch Belt is the technician's choice for these high torque, demanding applications. Featuring a 126 inch outside diameter and a standard BX cross section, this belt uses a raw edge cogged construction that provides superior flexibility compared to traditional wrapped belts. This design allows it to wrap