Electrical Installation
6
Main Disconnect
Daktronics requires installation of a power disconnect switch with the display so all
ungrounded conductors can be disconnected near the point of power connection.
Locate the disconnecting means either in a direct line of sight from the display or so it
can be locked in the open position. This ensures that power is not reconnected while
service personnel work on the display.
Access Internal Components
The door of Fuelight
™
Petroleum Price displays is secured by two slotted fasteners.
1�
Release the slotted latches by gently turning them counter-clockwise with a flat-head
screwdriver.
2�
Open the left door using the knob attached to the display face.
3�
Open the right door by gently pushing it outward from inside of the display.
Note:
Smaller displays may only have one door.
4�
The driver and power supply(s) are attached inside the cabinet to the display’s
backsheet and their locations vary between display sizes. Refer to
approximate component locations.
TOP
TOP
TOP
TOP
Slotted Latch
Slotted Latch
Grounding
Stud
Driver
Power Supply
Knockouts
Model Number
Label
Figure 6:
Internal Component Locations
Grounding
FL-3000 and FL-4500 series displays do not require a local earth ground electrode�
The displays are designed so the most sensitive components are isolated and a local
earth ground electrode is not required and is no longer recommended.
The displays still require a safety ground from the electrical service panel for the primary
power wires to comply with national electric codes.
Please note that local earth ground electrode requirements for other Daktronics products
remain unchanged.
Power Installation
Install Daktronics Fuelight
™
displays using a two wire plus ground circuit. Connect the
ground from the circuit to the grounding stud within each display. Refer to
.
Do not connect neutral to ground at the disconnect or at the display as this violates
electrical codes and voids the warranty. Use a disconnect so that all ungrounded
conductors can be disconnected.
