H) Temperature Compensation Sensor; I) Ac Input Wiring - NewMar 12-1800IC Installation & Operation Manual

A separate Battery Integrator is required for each additional battery bank to be charged.
Contact the factory for more information.

H) Temperature Compensation Sensor

The nominal output voltages for the charger (which are discussed later in this manual) are
ideal for a battery at about 72° F. However, the ideal charging voltage will vary according to
temperature. Higher battery temperature requires a lower charging voltage and vice versa.
Therefore, the inverter/charger is equipped with a temperature sensor which automatically
raises and lowers output voltage according to the temperature sensed on the battery post.
A 20 foot sensor cable has been factory-installed and is routed through the access port at
the bottom of the compartment (along with the remote panel in-line plug assembly).
The sensor must be securely attached to the negative post of the battery. A 3/8" ring termi-
nal on the end is provided for this purpose.
CAUTION: Failure to install the temperature sensor properly may result in overcharging or
undercharging of the batteries. Extreme overcharge may cause severe damage or exploding
batteries and fire.

I) AC Input Wiring

The inverter/charger is designed for hardwire AC input only. The AC input serves two func-
tions:
1) It provides power for the internal battery charger whenever external AC is available.
2) It allows routing of an external AC source through the inverter/charger so that, by
use of a built-in automatic transfer switch, AC is available directly from the unit at all
times either from the inverter or shore/generator power.
AC input wires are located in the left-hand compartment on the unit front. Do not confuse
the AC input wires and the AC output wires, also located in the same compartment. (Refer to
Figure 3 on the following page for input and output wiring locations.) Applying AC from an
external source to the AC output wires will cause severe damage and void the warranty.
AC input wiring for the inverter/charger must be routed through a 30 amp fuse or circuit
breaker on an AC distribution panel with proper safety/earth chassis ground in accordance
with all applicable local codes and ordinances.
Internal AC wires are 10 AWG and color-coded as follows:
115V Models
Black.....................Brown...............................Hot
White.....................Blue..................................Neutral
Green.....................Green/Yellow Stripe.........Ground (safety, earth)
P.O. Box 1306
Newport Beach,
California 92663
230V models
www.newmarpower.com
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: sales@newmarpower.com
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