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a. Manually open the damper fully (rotate
counterclockwise).
b. Using the Declutch button, rotate the universal shaft
adapter fully counterclockwise.
c. Mount the actuator to the damper box and shaft.
d. Tighten the two bolts on the centering clamp (8 mm
wrench; 70.8-88.5 lb-in. [8-10 Nm] torque). When the actuator
closes, the damper rotates CW 90 degrees to fully close.
4. If the damper rotates counterclockwise (CCW) to open, and
the angle of the damper open-to-closed is 45 or 60 degrees:
a. Manually open the damper fully (rotate
counterclockwise).
b. The actuator is shipped with the mechanical end-limits
set at 95 degrees. Adjust the two mechanical end-limit set
screws to provide the desired amount of rotation. Adjust the
two set screws closer together to reduce the rotation travel.
c. Tighten the two mechanical end-limit screws (Phillips #2
screwdriver; (26.5-31 lb-in. [3.0-3.5 Nm] torque).
d. Using the Declutch button, rotate the universal shaft
adapter fully counter-clockwise.
e. Mount the actuator to the VAV damper box and shaft.
f. Tighten the two bolts on the centering clamp (8 mm
wrench; 70.8-88.5 lb-in. [8-10 Nm] torque).
g. When the actuator closes, the damper rotates CW either
45 or 60 degrees to fully close.
Mount Controller
NOTE: The controller may be wired before mounting to a
panel or DIN rail. Terminal blocks are used to make all wiring
connections to the controller. Attach all wiring to the
appropriate terminal blocks (See "Wiring" on page 15). See
Fig. 6-Fig. 7 for panel mounting dimensions. See Fig. 8 on
page 12 for DIN rail mounting.
Panel Mounting
The controller enclosure is constructed of a plastic base plate
and a plastic factory-snap-on cover.
NOTE: The controller is designed so that the cover does not
need to be removed from the base plate for either mounting or
wiring. The controller mounts using four screws inserted
through the corners of the base plate. Fasten securely with
four No. 6 or No. 8 machine or sheet metal screws.
The controller can be mounted in any orientation. Ventilation
openings are designed into the cover to allow proper heat
dissipation, regardless of the mounting orientation.
4-13/16 (122)
4-1/8 (105)
1 1 1 1 1 1 1 2 2 2 2 2
3 4 5 6 7 8 9 0 1 2 3 4
6-1/4
159)
5-7/8
(149)
1 1
1 2 3 4 5 6 7 8 9 0 1 2
3/16 (4.5) PANEL MOUNTING HOLE (4X)
NOTE: CONTROLLER CAN BE MOUNTED IN ANY ORIENTATION.
Fig. 6. Panel mounting - controller dimensions in inches
(mm) for CVL4024NS-VAV1 only.
4-1/8
(105)
1 1 1 1 1 1 1 1 1 1 2
9 0 1 2 3 4 5 6 7 8 9 0
6-1/4
(159)
5-7/8
(149)
1 2 3 4 5 6 7 8
3/16 (4.5) PANEL
MOUNTING HOLE (4X)
NOTE: CONTROLLER CAN BE MOUNTED IN ANY ORIENTATION.
Fig. 7. Mounting - controller and actuator dimensions in
inches (mm) for CVL4022AS-VAV1 only.
DIN Rail Mounting (CVL4024NS-VAV1
only)
To mount the CVL4024NS-VAV1 controller on a DIN rail
[standard EN50022; 1-3/8 in. x 9/32 in. (7.5 mm x 35 mm)],
refer to Fig. 10 and perform the following steps:
1. Holding the controller with its top tilted in towards the DIN
rail, hook the two top tabs on the back of the controller onto
the top of the DIN rail.
2. Push down and in to snap the two bottom flex connectors of
the controller onto the DIN rail.
11
DEPTH IS 2-1/4 (57)
4-13/16 (122)
4-1/8 (105)
1 1 1 1 1 1 1 2 2 2 2 2
3 4 5 6 7 8 9 0 1 2 3 4
6-1/4
(159)
5-7/8
(149)
1 1
1 2 3 4 5 6 7 8 9 0 1 2
8-9/32
(211)
1-15/16
(49)
27/32
(21)
6-9/32
(159)
DEPTH IS
2-1/4 (57)
M28648
31-00083—02
M28649
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