10
D
ymax ZIP™ Shutter User Guide
NOTE:
The ZIP Shutter will close automatically in the timed mode or it will stay open until you release
the Foot Switch or Actuate Button in the manual mode.
7.
Close the ZIP Shutter to end the cycle.
Maintenance
Check and Adjust Curtain Drive-Belt Tension
Figure 13. Belt Tension Adjustment
Dymax recommends that the ZIP Shutter's Curtain Drive-Belt's tension be checked at least once every
three months. Follow the instructions below to check the Curtain Drive-Belt's tension.
1.
Turn off and disconnect the Lamp Reflector Housing from the external AC source.
2.
Remove the
ZIP Shutter
from the Flood Lamp Reflector Housing and place it on the bench, bottom-
side up.
3.
Remove the screws that attach the ZIP Shutter's bottom panel.
4.
Very lightly press in the center of the Curtain Drive Belt with a finger; the Belt should deflect no more
than ¼" to ⅜".
5.
If deflection exceeds this value, tighten the Curtain Drive Belt by adjusting the Tension Screw in the
back of the
ZIP Shutter
.
NOTE:
Make sure that both belts are tightened equally.
6.
Replace the bottom cover and secure it with its screws.
7.
Place the ZIP Shutter back on the Flood Lamp Reflector Housing and re-position it.
8.
Reconnect the cables and plug the AC cord into wall socket.
