Full Product Manual

975-0772-01-01 13
Installation
3. Install a DC-rated fuse on the positive battery terminal.
Alternatively, install a DC-rated circuit breaker that connects to
the positive battery terminal.
The fuse (or circuit breaker must have an Ampere Interrupting
Capacity (AIC) that exceeds the short-circuit current available
from the battery. For guidance, see “Cold Cranking Amps /
AIC” on page 11.
4. When configuring for heavy loads (see Figure 5), install a
battery selector switch and connect it to the DC-rated fuse (or
circuit breaker).
5. On the inverter side, attach the connectors of the positive and
negative cables into the cabling terminals of the inverter.
Note: Make a secure connection. Loose connectors cause
excessive voltage drop and may cause overheated wires and
melted insulation.
Note: The red terminal is positive (+) and the black terminal is
negative (–). Power connections to the PurePower 1800
inverter must be positive to positive and negative to negative.
6. Attach the connector on the positive cable to the DC-rated fuse
(or circuit breaker) which is connected to the positive terminal
of the battery.
When configuring for heavy loads (see Figure 5), attach the
connector on the positive cable to the battery selector switch
that is already connected to the DC-rated fuse (or circuit
breaker).
Note: Make a secure connection. Loose connectors cause
excessive voltage drop and may cause overheated wires and
melted insulation.
ELECTRICAL SHOCK AND FIRE HAZARD
Install a DC-rated fuse (and fuse holder) on the positive battery
terminal. Note that the PurePower 1800 inverter does not come
with a DC-rated fuse (or circuit breaker) to safely withstand the
short-circuit current batteries can produce.
Failure to follow these instructions will result in death or serious
injury.
DAMAGE DUE TO REVERSE POLARITY
Do not connect positive cables to negative terminals (and vice-
versa) as this will blow a fuse in the inverter and may permanently
damage the unit. Damage caused by a reverse polarity connection
is not covered by your warranty.
Failure to follow these instructions can damage the unit and/or
damage other equipment.
PurePower 1800.book Page 13 Monday, December 12, 2016 5:06 PM