Schneider Electric (Barber Colman) AV-390 Valve linkage 30067439-890 This unit is designed for

This unit is designed for CCW rotation when viewed from the lead/hub end

it stabilizes the negative pressure within the venting system

Its unique "HH" core technology is specifically formulated to remove wax from low-temperature systems

A humming sound usually indicates the coil is energized but the plunger is mechanically stuck due to debris or a worn spring

Common Questions Does this kit work with the smaller 1/2" VG7000 valves

Schneider Electric (Barber Colman) AV-390 Valve linkage 30067439-890 This unit is designed forThe Schneider Electric (Barber Colman) AV 390 Valve linkage is a critical sub assembly designed for field integration of gear train actuators with VB 7XXX and VB 9XXX series valve bodies. This specialized AV 390 common parts kit includes a high precision cam, plunger, and stem extension kit, providing the essential mechanical interface required for effective fluid control in commercial HVACR systems. As a veteran grade valve linkage sub assembly, it