Distech Controls VA-024ZS Series Hardware Installation Manual page 3

Override handle Override handle at
at position 0. position 1.
Figure 6. Manual Override Handle Position.
Start-Up
When the manual override handle is at the "0" position, the output shaft
is retracted if the actuator is normally open, or extended if normally
closed. See Figure 7.
When the Manual Override handle is rotated to position 1, the reverse
is true. See Figure 8.
Check the wiring and the position indication.
Service Envelope
Minimum access space recommended: 8 inches (200 mm) above the
actuator.
NOTE:
The "0" and "1"
position markings
are intended for
reference only and
not stroke
measurement.
(A) Allow handle to turn counterclockwise to retract spindle.
(B) Turn handle clockwise to extend spindle.
Figure 7. Normally Open (VA-024ZSO Series).
(A) Allow handle to turn counterclockwise to extend spindle.
(B) Turn handle clockwise to retract spindle.
To avoid damage to actuator, DO NOT manually assist
spring return.
Figure 8. Normally Closed (VA-024ZSC Series).
Troubleshooting
Check the wiring for the proper connections.
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