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Installing a Parallel Configuration
A parallel configuration is when two Truecharge2 Battery Chargers are
coupled together to increase the output capacity. For example, a 40-amp
Truecharge2 Battery Charger can be connected with another 40-amp
Truecharge2 Battery Charger for a combined 80-amp capacity charger. This
configuration is possible only with the use of the optional remote panel.
Parallel configuration can only be done when the following conditions are
met:
•
Two Truecharge2 Battery Chargers must have the same output
voltage rating. Never parallel a 24-volt charger with a 12-volt
charger.
•
Both Truecharge2 Battery Chargers must connect to a
Truecharge2 Remote Panel.
•
Both Truecharge2 Battery Chargers must be correctly installed.
Installing a parallel configuration:
1.
Follow the installation sequence (from steps 1 through 4) for a single
unit - “Installing the Truecharge 2 Battery Charger” on page 16.
2.
In “Step 4: Installing AC Wiring” on page 21, make sure that the two
AC input lines come from the same circuit branch, that is, both AC
input lines should have a common circuit breaker.
3.
Designate a primary charger and a secondary charger between the two
chargers. Remember that only the primary charger or remote panel can
be used to configure and operate the parallel system.
4.
Connect the primary charger’s battery bank 1 to the secondary
charger’s battery bank 1. Do the same for battery banks 2 and 3.
NOTE
: A maximum of three battery banks can be connected to a
parallel-configured charger system.
5.
Leave any unused DC output/s unconnected.
6.
Connect the remote panel’s communications cable to the primary
charger’s remote port and to the remote panel’s primary port. Do the
same for the secondary charger.
7.
Connect the BTS (or battery temperature sensor’s) cable plug to the
primary charger’s BTS port. Then connect the BTS’s sensor to the
battery.
NOTE
: If you have two BTSs, you may connect the two separate cable
plugs to each of the battery chargers’ BTS ports. You may then
connect each of the sensors to two separate batteries. However, during
operation, the BTS that is detecting a higher temperature will be used
for battery temperature compensation.
DAMAGE TO THE BATTERY CHARGER
Do not parallel Truecharge2 Battery Chargers together without a
Truecharge2 Remote Panel (part number: 808-8040-01).
Failure to follow these instructions can damage the unit and/or
damage other equipment.
TC2 204060 Series BattChg Owners Guide.book Page 25 Friday, July 8, 2011 11:44 AM