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Installing the VVT Bypass Controller
5
Hold down the controller's damper release button and rotate the actuator clamp in the same direction that
closed the damper. Rotate the clamp until it stops, then rotate it back one notch.
6
Release the button.
7
Tighten the actuator clamp to the damper shaft by tightening the two M5 nuts.
8
Hold down the damper release button and rotate the damper from fully closed to fully open. If the 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.
Move stop
clamp if
necessary
9
Hold down the damper release button, rotate the damper to verify that it fully opens and closes, then release
the button.
10 Connect the filter tube provided to the controller's High connector. See figure below. Using 1/4" poly tubing,
connect the other end to a duct static pressure probe (part #39EK20462) located in the supply air duct
downstream of the bypass damper, but before the first branching of ductwork. See diagram in Installation
(page 6).
NOTE Tubing should be at least 2 feet long for stable airflow measurement.
11 Leave the controller's Low connector open for plenum return or to a room space if using ducted return.
VVT Bypass Controller
Installation and Start-up Guide
Carrier Proprietary and Confidential
8
CARRIER CORPORATION ©2017
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