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Note: The equalization process is not recommended for sealed valve regulated or gel-
cell batteries.
The equalize circuit (connector located inside the PT charger) should be wired through a
manual or electric timer which provides a closed contact when engaged and an open circuit
when timed out (SPST — Single Pole Single Throw). Do not use a manually operated switch
for activating the equalize circuit. This is because unless the charger is reverted to a safe
float voltage in a timely manner, the batteries will almost certainly be damaged or destroyed.
The timer should be a 0-12 hour type, capable of carrying a minimum of 100 mA at 5V d.c.
CAUTION: Do not install the timer in an area requiring ingnition protected equipment
unless it has been certified to meet ignition protection requirements.
The equalization circuit of the Phase Three charger boosts output voltage to approximately 8
% above float voltage. Refer to the battery manufacturer's instructions when deciding the
appropriate time period setting for this voltage to achieve proper equalization, while ensuring
batteries are not damaged by increased battery temperature. This installation should only
be performed by a qualified technician.
Installing the timer requires a mating connector with dual wires which are plugged into a
jack on the internal charger function circuit board. The connector/wire assembly is available
from NEWMAR. Request part number 873-3716-0, CFB Equalize 2 pin assembly. Proceed
with the installation as follows:
(Caution: Ensure a.c. input has been disconnected before proceeding)
1) Remove the five screws on the front panel and two screws on each side of the unit.
2) Remove the small cover plate on the lower end of the front panel. This will expose the fan
assembly which is held in place by two guides attached to the main cover.
3) Lift and slide the fan assembly completely out of the charger.
4) Remove the main cover from the charger base, taking care not to bend the two jacks on
the right side of the charger out of position.
5) Locate the two-pin header labeled "J2" on the top of small charger function circuit board
which is located on the right side of the charger. Insert the mating connector and route the
two control wires through the u-shaped cutout on the top right side of the main cover as-
sembly.
6) Replace the charger cover assemblies.
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U.S.A. HEADQUARTERS
P.O. Box 1306, Newport Beach, CA 92663
Phone: 714-751-0488 Fax: 714-957-1621
E-Mail: sales@newmarpower.com
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