Electrical Installation
7
Electrical Installation
Only qualified individuals should perform power routing and termination to the display.
It is the electrical contractor's responsibility to ensure that all electrical work meets or
exceeds local and national codes. Improper installation could result in serious damage
to the equipment and could be hazardous to personnel.
Verify the existing disconnect switch (circuit breaker) has a rating that will handle the
Galaxy
®
eCCB display and the remaining sign load. If the rating of the branch circuit and
or disconnect switch is exceeded then a new disconnect switch and possibly additional
branch circuits may be required.
1�
Disconnect power to the display.
2�
Remove the bottom two modules from the second column on the left side of the
display with a
1
/
8
″ hex head wrench. A component layout is shown in
.
3�
Locate the latch fastener on the module. It is centered in the third row of LEDs from
the top of the module. Refer to
. Turn the
wrench a quarter turn counter-clockwise.
4�
Gently tip the top of the module outward slightly.
Then lift the module upward to disengage the tabs
at the bottom of the module from the slots on the
display's face sheet.
5�
Disconnect the signal cables and unplug the power
cable by squeezing the tabs on the sides of the plug
head and pulling it out. Refer to
.
6�
Remove the cover from the access panel on the
display's back sheet with a
1
/
4
″ nut driver.
7�
Reach through the access hole and remove the
power termination junction box cover on the rear of
the display and remove.
8�
Use a
3
/
16
″ nut driver to remove the term panel cover.
Light
Detector
Wi-Fi
Router
Controller
Thermostat
Power
Term
Panel
Power
Supply
Power
Supply
Fan
Fan
Fan
Fan
Fan
Figure 7:
Component Layout - 3x8 Display
Figure 8:
Remove Modules
Figure 9:
Disconnect Cables
