Code 3 SuperVisor TL for Chevy Impala - Manual (Page 9)

9
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 substan-
tial 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 environ-
ments or operated close to their capacity.
WARNING!
!
Route the wiring cable into the passenger compartment as shown in Figure 10. It is advisable to leave an extra loop of cable when
installing the light bar 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. The MR8 takedowns may be installed to a flasher. The fan should be wired to operate continuously whenever the
takedowns are in operation, either flashing or steady burn. Each light head is wired independently to allow complete flexibility of
control.
FIGURE 10