iO HVAC Controls ZD-XXXX-BM Modulating Commercial Zone Damper, Rectangular, Bottom Mount

The ZD Series bottom mounted dampers are heavy-duty commercial modulating dampers. These 3-wire dampers provide application flexibility and allow for minimum position adjustment. The ZD Series dampers are used with the Z-2000 zone panel or Zone One modulating stand alone zoning system.  The thermostat is sold separately for stand alone systems, Z-2000-T.