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System Efficiency: Enables fine-tuning of the throttling range to optimize burner firing rates and reduce fuel consumption
000 BTU/hr (Natural Gas)
The McDonnell & Miller 317350 (Model TC-U) is a specialized Test and Check Upper Valve designed to eliminate the need for full system drainage during low water cut-off testing
this electrochemical Oxygen (O2) replacement sensor is engineered for high-accuracy monitoring within a 0–25% volume range
Check resistance with a multimeter
Multi Products 2659D-S Actuator THPU32HP7Y System Efficiency: Enables fine-tuning ofThe Multi Products 2659D S Actuator is a heavy duty 120V square shaft actuator designed for precise damper control and ventilation automation in commercial and industrial HVACR environments. Engineered as the direct replacement for 2257, this unit features a unique square shaft with 4 flats, ensuring a slip free mechanical connection and stable mounting for high torque applications. Built with a zinc die cast housing and a robust metal geartrain, the
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