Carrier VAV Zone II Installation And Startup Manual page 16

Installing the VAV Zone II
CAUTIONS
You must use the screws, anti-rotation slot's bushings, and o-rings that are shipped with the VAV Zone II.
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Overtightening the screws so that the controller and actuator cannot move may damage the unit.
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Hold down the VAV Zone II's actuator release button and rotate the actuator clamp in the same direction that
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closed the damper. Rotate the clamp until it stops, then rotate it back one notch.
Release the button.
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Tighten the actuator clamp to the damper shaft by tightening the two M5 nuts.
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Hold down the actuator damper release button and rotate the damper from fully closed to fully open. If the
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damper traveled less than 90 degrees, do the following to set the actuator's fully open position:
a) Loosen the appropriate stop clamp screw. See figure below.
b) Move the stop clamp until it contacts the
edge of the actuator cam.
c) Tighten the screw.
VAV Zone II Controllers
Installation and Start-up Guide
12
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