Daktronics Galaxy AF-3080 Series, Display Manual

Page: 18 / 107

2.3 Ventilation Requirements
Reference Drawings:
Shop Drawing; AF-3080-24x***-68B............................ Drawing B-163291
Shop Drawing; AF-3080-8/16x***-68B......................... Drawing B-163293
Fans, mounted in the back sheets toward the top of the display, allow for ventilation.
Maintain a minimum distance of 3" (7.62 cm) below the sign to maintain proper
airflow. Refer to the appropriate
Shop Drawing for additional information.
If the sign cabinet is completely enclosed:
•
Provide 6 square inches of unobstructed opening per module to ensure
adequate cooling.
•
Make allowances to compensate for the percentage of material covering the
openings in the structure.
•
For adequate cooling, the cabinet may require forced ventilation. If the
enclosed cabinet must use forced ventilation, it must ventilate at a rate of 10
cubic feet per minute per module (10.64" x 10.64" active area).
Failure to comply with these requirements voids the Galaxy sign warranty.
2.4 Lifting the Sign
The top of the sign has eyebolts to lift the unit. Do not exceed the rated load of the
eyebolts. Refer to the information at the end of this section labeled Eyebolts to
determine the allowable load of the eyebolts shipped with the sign.
Figure 8 on the right illustrates both the correct (left example) and the incorrect
(right example) method of lifting a sign. Lift the sign as shown on the left, with the
lifting bar.
Use every lifting point provided .
Figure 8: Lifting the Sign
Do not attempt to
permanently support the
sign by the eyebolts
.
If you remove the eyebolts,
adequately seal the holes
using 13 bolts and sealing
washers, ½ inch in size. Be
sure to silicone along the
threads to ensure water does
not enter the sign.
Mechanical Installation
2-2