Brochure
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
334
1. The damper operating shaft should extend approximately 1-1/2 inches from
the damper assembly or duct side. Mount the drive shaft/coupler
➀
to
the damper operating shaft
➁
. Fasten the coupler to the damper operat-
ing shaft by tightening the two 3/8 inch square head set screws
➂
.
2. Determine the housing mounting orientation for the application.
3. Locate the housing hole position(s) for the control wiring of the actuator.
4. Make the necessary holes in the housing for the electrical fittings. All fit-
tings must be rated for use in NEMA 4X applications.
5. Install (if ordered with) the 2 mounting brackets
➃
to the housing using
the four 1/4-20 screws, washers, and nuts
➄
. Do not tighten.
6. Carefully slide the housing over the drive shaft.
7. Place the housing in the desired mounting position. Transfer the mounting
hole locations from the mounting bracket to the mounting surface.
8. Drill the 4 holes and fasten the brackets to the surface.
9. Install the anti-rotation strap to the housing in the correct location for the
actuator which is being used.
10. Mount the actuator to the drive shaft using the instructions for the actuator
being used. Finger tighten the nuts of the universal clamp. Make sure the
back of the actuator is parallel to the back of the housing.
11. The operating shaft must pass through the mounting clamp at least 3/8
of an inch. It must not extend beyond the front of the housing. Slide the
actuator/housing assembly in the mounting brackets to obtain the proper
position.
12. Tighten the mounting brackets to the housing. Verify that the back of the
actuator is still parallel to the back of the housing. Tighten the nuts on the
universal clamp.
13. Make all of the required electrical connections.
14. Test the actuator/damper operation.
15. Fasten the housing cover
➅
using the 6 swivel clamps.
ZS-300 Mounting Instructions
ZS-300 (-1, -5)
NEMA 4X, stainless steel, corrosion resistant enclosures for AM, GM, AF, and NF actuators
LF
AMB
GMB
GM
AF/NF
FM/SF
Anti-Rotation Strap Mounting Locations
1
2
3
4
5
6
Inner plate,
see detail below.
Swivel clamps (6)
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.










