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sensor, the chart lists the absorption/float output voltages of the charger when batteries
are at 72° F (or when the sensor is not installed), and at cold (50° F) or hot (90° F) bat-
tery temperatures with the sensor installed:
Temperature Compensation Chart
Battery
Temperature
° F
° C
50
10
72
22.2
90
32.2
* Factory pre-set voltages without temperature compensation option installed
F) Equalize Timer Option
Some manufacturers of flooded lead-acid batteries recommend a charging process known
as equalization for extended battery life. This process involves occasionally charging a
wet lead-acid battery at a very high voltage for a short period of time in order to com-
pletely de-sulphate each of the battery plates, essentially equalizing their voltage. The
installer of the Phase Three charger may choose to wire in this option at the time of
installation.
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 oper-
ated 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 mini-
mum of 100 mA at 5V d.c.
CAUTION: Do not install the timer in an area requiring ingnition protected equip-
ment unless it has been certified to meet ignition protection requirements.
The equalization circuit of the Phase Three charger boosts output voltage to approxi-
mately 8 % above float voltage. Refer to the battery manufacturer's instructions when
deciding the appropriate time period setting for this voltage to achieve proper equaliza-
tion, 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:
P.O. Box 1306
Newport Beach,
California 92663
Output V d.c : 12 Volt Models
Charge
Float
Gel-Cell Lead Acid Gel-Cell Lead Acid Gel-Cell Lead Acid Gel-Cell Lead-Acid
14.4
14.6
14.0
13.8
14.0*
14.2*
13.6*
13.4*
13.7
13.9
13.3
13.1
www.newmarpower.com
Output V d.c : 24 Volt Models
Charge
Float
28.8
29.2
28.0
27.6
28.0*
28.4*
27.2*
26.8*
27.4
27.8
26.6
26.2
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: sales@newmarpower.com
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