Code 3 SuperVisor TL for 2007 Ford Expedition - Manual (Page 6)

6
Wiring Instructions
Larger wires and tight connections will provide longer service life for components. For high current wires it is
highly recommended that terminal blocks or soldered connections be used with shrink tubing to protect the
connections. Do not use insulation displacement connectors (e.g. 3M
® Scotchlock type connectors). Route
wiring using grommets and sealant when passing through compartment walls. Minimize the number of splices to
reduce voltage drop. High ambient temperatures (e.g. underhood) will significantly reduce the current carrying
capacity of wires, fuses, and circuit breakers. Use "SXL" type wire in engine compartment. All wiring should
conform to the minimum wire size and other recommendations of the manufacturer and be protected from moving
parts and hot surfaces. Looms, grommets, cable ties, and similar installation hardware should be used to
anchor and protect all wiring. Fuses or circuit breakers should be located as close to the power takeoff points as
possible and properly sized to protect the wiring and devices. Particular attention should be paid to the location
and method of making electrical connections and splices to protect these points from corrosion and loss of
conductivity. Ground terminations should only be made to substantial chassis components, preferably directly to
the vehicle battery. The user should install a fuse sized to approximately 125% of the maximum Amp capacity in
the supply line to protect against short circuits. For example, a 30 Amp fuse should carry a maximum of 24
Amps. DO NOT USE 1/4" DIAMETER GLASS FUSES AS THEY ARE NOT SUITABLE FOR CONTINUOUS
DUTY IN SIZES ABOVE 15 AMPS. Circuit breakers are very sensitive to high temperatures and will "false trip"
when mounted in hot environments or operated close to their capacity.
WARNING!
FIGURE 17
This Product contains high intensity LED devices. To prevent eye damage, DO NOT stare
into light beam at close range.
WARNING!
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Product Features
3-LED Optix lighthead options: Red, Blue, Amber, White;
Directional, Wide or Hybrid Optics;
Flashing or Steady Burn Control
Size: 50.00" long x 2.01" tall x 6.86" deep
Weight: 7.5 lbs
LED Fusing Considerations
Although the average current draw per module is very low, due to the type of circuit used to power each module, the instantaneous
peak current to a module can be significantly higher during low voltage conditions. To avoid prematurely blowing ATO style fuses or
tripping breakers it is recommended the following rule-of-thumb be used to size fuses or breakers. This is especially important in
lightbars with many LED modules running off a single fused source.
Minimum fuse size calculation: (See Wiring Diagram page 5)
For LED 12 volt electrical current only
.5 X (number of 3-LED modules being fused) = Total Electrical Current at 12.8 VDC
Route the wiring cable into the passenger compartment down the door post as shown in Figure 17 (passenger side shown) or as
otherwise desired (As stated before in the "Note" in Step 4 the cable can also be routed up above the headliner across and
down behind the plastic corner door post covers and under the dashboard. Refer to the service manual for the Ford
Expedition for detailed instructions as to how to remove the door post cover for access to route the cable). It is advisable to
leave an extra loop of cable when installing the lightbar to allow for future changes or reinstallations. Connect the black lead to a solid
frame ground (earth), preferably, the (-) or ground (earth) side of the battery, and the remaining power wires to the +12V terminal of the
battery, power switches, siren or RLS controller. Each lighthead is wired independently to allow complete flexibility of control.
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