Installation Manual

2.0 Installation

CAUTION: The inverter is NOT reverse polarity pro-

tected. If this happens, the inverter will be damaged and

will not be covered under warranty.

Before connecting

the DC wires from the batteries to the inverter, verify

the correct battery voltage and polarity using a voltme-

ter. If the positive terminal of the battery is connected

to the negative terminal of the inverter and vice versa,

severe damage will result. If necessary, color code the

cables with colored tape or heat shrink tubing; RED for

positive (+), and BLACK for negative (-) to avoid polar-

ity confusion.

Info: The DC overcurrent device (i.e., fuse or circuit

breaker) must be placed in the positive (RED) DC cable

line between the inverter’s positive DC terminal and

the battery’s positive terminal (RED); as close to the

battery as possible.

DC Ground Wire

Route an appropriately sized DC grounding wire (GREEN or bare

wire) from the inverter’s DC Ground Terminal (see Figure 4, Item 17)

to a dedicated system ground. Recommended tightening torque is

45 in. lbs.

DC Negative Wire

Route an appropriately sized DC negative wire (BLACK) from the

negative terminal of the ﬁ rst battery string to the inverter’s negative

terminal (see Figure 16 for reference).

Battery Temperature Sensor

Connect the RJ11 connector end of the BTS to the ACCESSORY PORT

(see Figure 3, Item 11) on the inverter. Connect the other end of the

BTS to the negative terminal of the ﬁ rst battery string (in same place as

the negative DC wire above); refer to Figure 9 for the correct hardware

placement.

DC Positive Wire

Mount the DC fuse block and disconnect (or circuit breaker assembly)

as near as practical to the batteries, and then open the disconnect

(or circuit breaker).

WARNING: DO NOT close the DC fuse/DC disconnect (or

close the DC circuit breaker) to enable battery power to

the inverter at this time. This will occur in the Functional

Test after the installation is complete.

Route and connect an appropriately sized DC positive wire (RED) from

the DC fuse block (or circuit breaker assembly) to the inverter’s posi-

tive DC terminal.