Distech Controls VA-180GN Series Hardware Installation Manual page 3

Position the actuator to accommodate the wiring. Hold
the actuator in place while tightening the actuator U-
bracket bolt.
5. Tighten the U-bracket bolt using a 10 mm wrench (or 4 mm Allen
wrench) to 5 Nm (44 in-lbs) torque. See Figure 8.
6. Rotate the manual adjuster clockwise to manually extend the
actuator shaft until it covers the head of the valve stem See Figure
9.
7. Close the stem connection plate securely over the valve stem. See
Figure 10.
Figure 10.
8. Secure the stem connection plate by tightening the bolt, using a 10
mm wrench (or 4 mm Allen wrench). See Figure 11.
Figure 8.
Figure 9.
Figure 11.
The mounting is now complete.
Removing the actuator from a valve
1. Loosen the stem connection plate in the Valve Stem Coupling by
loosening the bolt, using a 10 mm wrench (or 4 mm Allen wrench).
2. Open the stem connection plate over the valve stem.
3. Manually retract the actuator shaft by turning the Manual Adjuster
counterclockwise until it reveals the head of the valve stem.
4. Loosen the U-bracket using a 10 mm wrench (or 4 mm Allen
wrench).
5. Completely open the bonnet connection U-bracket.
6. Push the valve stem to the fully retracted position. Then, slide the
actuator off the valve bonnet.
7. Remove the actuator from the valve, being careful not to damage
the valve stem.
8. Close the bonnet connection U-bracket.
Figure 12. Actuator with Cover Removed.
Plug-in space for...
A
Potentiometer VA-ASZ7.5.. (VA-180GNX024F only) or
Auxiliary switch VA-ASC10.51.
Plug-in space for...
B
Function module VA-AZX61.1 (VA-180GNX024P only), or
Auxiliary switch VA-ASC10.51
C LED (VA-180GNX024P only)
D DIP Switches (VA-180GNX024P only)
E Calibration Slot (VA-180GNX024P only)
F Connection Terminals
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