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Mount the Smart Damper. To minimize noise, the Damper should be installed as

near to the trunk line as is reasonable. Install the damper so that the motor is

upstream in the trunk. Be sure that the Power Pass Through box is easily

accessible for future service. Each end of the damper should be secured using at

least three screws spaced evenly around the circumference. Flex duct can be

secured using a zip tie.

WIRING

Wiring the Smart Damper. Using the correct polarity, plug the 24VAC 18/2AWG

coming from either the transformer or from the damper of a different zone.

Plug the red wire into the line (~) connector on one side of the Remote Power

Pass through and plug the 24V common into the common (dark grey) port by

stripping back 18/2AWG wire ~1/2", pressing the white levers, inserting the

exposed ends, and releasing the levers.

If there are more WCM, RTS, or WRMs repeat the process above and run the

power bus line to the next damper which must power a controller. If this is the

last controller that needs to be powered, put the cover back on the Smart

Damper PCB, and the installation is complete.

75F TECHNICAL SUPPORT

If you need more information, please visit www.75f.io/support. Here installers

will find instructional videos, installation guides, and more. You can also call

(651) 504.4175 if you need technical support.

www.75f.io

+1 (651) 998-4080