3
INSTALLATION
MOUNTING
Mount the unit in a DRY location. Allow at least 4 inches of clearance around it for adequate cooling.
POWER CONNECTION
The unit is supplied with 3 foot power leads. This should normally be adequate to connect to a
source of power. If you must extend the power leads, be sure to use at least a good quality
(typeTEW) AWG14 wire. The wire colours are
Red - Positive
Black - Negative
All connections should be made inside an appropriate junction box. Refer to the specifications table
for the correct sizing of the circuit breaker in the distribution panel.
A ground stud is provided to bond the chassis to local ground to reduce or eliminate EMI.
OUTPUT CONNECTIONS
Two Positive output terminals and two Negative output terminals are provided. Connect only one wire
to each terminal. Ensure that the total average load connected does not exceed the continuous
current rating of the unit.
LOAD SHARE OPTION
The units may be configured for load sharing if they are equipped with the optional output isolation
diodes. To confirm that your unit has these diodes, use an ohmmeter to measure the resistance
between the two positive output terminals. If the diodes are present the terminals will measure as not
connected. If the diodes are NOT present, the terminals will measure as a short circuit. Assuming
the output isolation diodes are present, connect one 4 foot piece of #14 AWG red wire to each
positive output terminal. Connect all the positive wires to a distribution bus, or connect them together,
and then connect from the common point to the load using the correct gauge of wire for the total
output capability of all the supplies running in parallel. Repeat this process for the negative terminals
using the same gauges of wire, but black in colour. These units should now load share. You can
confirm this by watching the output ammeters. A slight difference is negligible, however, if this is not
the case, you can increase the output voltage of the unit that is reading low using the output adjust
potentiometer.