Mounting And Installation - Distech Controls DA-044N Series Hardware Installation Manual

Figure 5. Setting the Direction of Rotation.

Mounting and Installation

Damper Shaft Sizes
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The minimum damper drive shaft length is 3/4-inch (20 mm).
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Observe the service envelope around the actuator as shown in
Figure 35.
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Detailed mounting instructions are included with each actuator.
1/2-inch Ø: 3/8-inch Ø:
Actuators come with Use the shaft insert supplied
a factory installed for any 3/8-inch (8 to 10mm)
1/2-inch shaft guide.. diameter shaft
If shaft size is 1/2-
inch, proceed with
Figure 9.
For all damper shafts with the exception of the 1/2-inch
round shaft: Remove
installation.
When using a 3/8-inch shaft: Remove factory installed 1/2-inch guide.
See Figure 6.
Figure 6. Removing 1/2-inch Ø shaft guide for 3/8-in or 5/8-in shaft.
5/8-inch Ø
1/2-inch Ø guide before
Figure 7. 3/8 Ø inch shaft, see Figure 2, Item f.
1. A 3/8-inch shaft adapter is provided in actuator package.
2. Hold the shaft insert so that the raised tabs are inserted last when
placing the insert into the back of the actuator.
3. Proceed to Figure 9.
When using a 5/8-inch shaft:
Figure 8. 5/8 Ø inch shaft.
1. Remove factory installed 1/2-inch guide. See Figure 6.
2. Mount actuator to shaft per Figure 9.
Figure 9. Mounting Actuator to Damper Shaft.
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