4011-IF: Round 24VAC 2 Position Spring Return Damper

Spec SheetT-720 Installation Instruction
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The Young Regulator 4011 round 2-position 24V motorized damper is ideal for zone control, outside
air, air intake, and exhaust air vents. The 4011 features a hysteresis synchronous motor that has a “lost motion” drive to protect the gear train from closing shock.

Damper is whisper quiet.

The 4011-IF includes our Interface Board that simplifies field wiring.