and LGB series units

High Flow Capacity: Minimizes pressure drop to maintain optimal refrigerant velocity and motor cooling efficiency

The unit features pre-punched mounting slots designed for standard sheet metal screws

Ensure all safeties are closed before condemning the board

which is required for specific tank insulation thicknesses to ensure the sensing element remains in the top 6 inches of the water column

Maxitrol M520B-3/4 Gas Valve 320720-756 and LGB series unitsThe Maxitrol M520B 3 4 is a specialized 3 4" NPT Modulating Gas Valve engineered for technical precision in negative pressure (pull through) and indirect fired atmospheric burner applications. As a core component of the Selectra electronic gas flame modulating system, this valve provides instantaneous, non fluctuating temperature control without the need for mechanical butterfly valves or motors. Built with a corrosion resistant brass valve body and a