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Notice! This UPS158 strobe power supply, like all Whelen components, can be installed in many different types of vehicles. The
guidelines for the installation of this product are written so that no matter what vehicle is being used, the installation and
operation of the UPS158 will be simple and straight forward.
Selecting a mounting location...
The most common choice for a mounting area would be a trunk or similar compartment. However, due to the wide variety of
vehicles onto which the UPS158 could be installed, this is not always possible. The following guidelines will help the installer
select an acceptable alternative:
•
The UPS158 should be mounted on a metal surface to aid heat dissipation. Be sure that this surface is not one that
either generates or is exposed to excessive heat during normal operation of the vehicle.
•
Do not select a location where the UPS158 will be exposed to potential damage from any unsecured or loose
equipment in the vehicle.
•
Be sure the area selected will not allow the UPS158 to be exposed to water!
•
When routing the UPS158’s wires, it is important to choose a path that will keep these wires away from excessive
heat and from any vehicle equipment that could compromise the integrity of the wires (ex. trunk lids, door jams,
etc.).
•
When the best mounting location has been determined, securely fasten the UPS158 to its mounting surface using
the supplied hardware.
WARNING: The Strobe Light Power Supply is a high voltage device. Do not touch or remove tube assembly
in strobe light head assemblies while in operation. Wait 10 minutes after disconnecting the unit from its
power source before starting work or troubleshooting on power supply or system.
Caution:
As it will be necessary to drill holes into the mounting surface, the installer MUST be sure that
no vehicle components or other vital parts could be damaged by the drilling process. Check both sides of
the mounting surface before drilling begins!
1.
Position the UPS158 in its proposed mounting location to ensure that it fits properly. With the UPS158 in place, insert an
awl or other suitable tool into the mounting screw area of the power supply and scribe the areas that are to be drilled.
2.
Remove the UPS158 from its mounting area and, using a drill bit sized for a #10 sheet metal screw, drill a hole in each of
the areas scribed in the previous step.
3.
Return the UPS158 to its mounting location and using the supplied #10 sheet metal screws, mount the UPS158 onto its
mounting surface.
Wiring your UPS158...
1.
Locate the two, 3 position Power Connectors included with your UPS158 and plug them into the port indicated in Fig. 1.
Splice the two RED wires together and extend to the the vehicle battery.
WARNING: All customer supplied wires, that connect to the positive (+) terminal of the battery, must be
sized to supply at least 125% of the maximum operating current, and fused “at the battery” to carry the
load!
2.
Connect the extended wire to a fuse block (customer supplied) and then to the POSITIVE terminal on the battery.
NOTE! Although a 30 amp fuse (customer supplied) is required to be used in the fuse block, do not install the fuse until
all of the wire connections are completed.
3.
Splice the two BLACK wires together and extend to the vehicle battery. Connect the extended wire to the factory chassis
ground adjacent to the battery.
4.
Refer to Fig. 2 for wiring information for the Control Connectors and for the Pattern Selection Connectors.
5.
As indicated in Fig. 2, there is a provision in the Power Connectors for a wire (VIOLET) to activate Hi Power/Low Power
strobe operation. If this feature is desired, locate the VIOLET wires included with your power supply and, with the Power
Connectors disconnected from the power supply, insert the pinned end of the VIOLET wires into position 3 of each of the
Power Connectors. Refer to Fig. 2 for wiring information.
