C) Proper Load Sizing; D) Operation With Engine; E) Operation As A Dc Power Supply; Vi) Specifications - NewMar PT-14W Installation And Operation Manual

While the output regulation of the charger will minimize battery gassing and water loss, monthly checks
of the electrolyte level (for wet lead acid batteries) are still strongly recommended. Some water loss is
an inevitable aspect of the charging process, and maintaining the correct electrolyte level in your
batteries is the most important thing you can do to assure their maximum performance and long life.
C) Proper Load Sizing
The Phase Three Charger is rated for continuous duty (e.g., model PT‐14W is rated at 14 amps
continuous, PT‐25 at 25 amps continuous, etc.). While the charger cannot be damaged by overloads that
exceed this continuous rating, excessive load demands may draw battery voltage down faster than the
charger can resupply it. If battery voltage continues to drop and the output current is at maximum while
the charger is in service, check to see that your average DC loads are not exceeding the charger's rated
output. If they are, you may wish to consider adding another charger in parallel to provide sufficient
power for your requirements. (See section III‐E, Multiple Unit Parallel Wiring.)
D) Operation with Engine
It is perfectly acceptable to allow the charger to remain on when the engine is started and while it is
running. The current limit feature of the Phase Three Charger will protect against any damage due to the
high current demands of engine cranking. Output diodes will prevent any back‐feed of current into the
charger from the alternator while the engine runs.
As the alternator starts to charge the battery, the charger output will decrease. When the battery
voltage exceeds the rated output voltage of the charger it will shut off and stay off as long as the
batteries are in this high state of charge. If the battery voltage should drop below the charger's rated
output voltage it will automatically return to service.
E) Operation as a DC Power Supply (stand‐alone DC power source)
Most battery chargers are not suitable for powering electronic devices directly, without a battery
attached to the output, as the high ripple and pulsing DC output (i.e., rectified AC output) can interfere
with the operation of the device. However, this charger employs a circuit that produces an extremely
well‐filtered DC output. Therefore it is able to power virtually any DC powered device (within the unit's
rating) without the battery attached in‐line (if, for instance, the battery must be removed for any
purpose and AC is still available). All but the most sensitive DC powered electronic devices will function
as normally as if powered by a battery. In addition, the current limiting circuitry enables the charger to
handle the high start‐up surges associated with inductive loads.
VI) SPECIFICATIONS
Model
Input VAC (50‐60 Hz.):
Input Amps @ Full Load:
@ 115 VAC
@ 230 VAC
P.F. Rating:
Output Voltage (Nominal):
Output Amps (Continuous):
PT‐14W PT‐25W
85‐264 90‐132 or 85‐264
180‐264
2.8
1.4
.95@230V
12
14
PT‐24‐8W
6.5 2.8
4 1.4
.7 .95@230V
12 24
25 8
PT‐24‐13W
90‐132 or
180‐264
6.5
4
.7
24
13