Installation
3–16
5. Install a fuse and fuse holder in the cable that will be used for the
positive side of the circuit. Install the fuse as close to the battery as
possible. For the correct fuse type and size, see “DC Fuses” on
page 3–14.)
6. For each cable, place the cable connector (ring terminal or box lug)
on the appropriate cabling terminal on the inverter’s DC end (positive
on red; negative on black), and then install the lock washer and nut
that are supplied. Tighten the nut to a torque of 9–10 foot pounds (12–
13 Nm). See Figure 3-4.
7. Place the two plastic terminal connector covers (boots) over the
cabling terminals and attach each boot with two screws (supplied).
8. Attach the connector on the negative cable to the negative battery
terminal. Make a secure connection. Loose connectors cause
excessive voltage drop and may cause overheated wires and melted
insulation.
9. Before proceeding, make sure that the cable you have just installed
connects the negative terminal of the inverter to the negative terminal
of the battery.
10. Connect the cable from the positive (red) terminal of the PROwatt
3000 to the positive terminal of the battery.
This is the last cable connection. A spark is normal when you make it.
11. If you have installed a battery selector switch, use it to select one of
the batteries or battery banks.
CAUTION: Reverse Polarity
Power connections to the PROwatt 3000 must be positive to
positive and negative to negative.
A reverse polarity connection (positive to negative) 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.
WARNING: Explosion or Fire
Do not complete the next step if flammable fumes are present.
Explosion or fire may result. Thoroughly ventilate the battery
compartment before making this connection.
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