Xantrex Freedom EX 4000 Installation Manual page 34

Basic Installation Procedures
ELECTRICAL SHOCK HAZARD
Tighten the nuts on the DC terminals properly. Loose
n
connections cause excessive voltage drop and may
cause overheated wires and melted insulation.
Do not over-tighten the nut on the DC input terminals
n
because damage to the DC input terminals may result.
Use a torque screwdriver to tighten the nut to a
maximum torque of 80 in-lb (9 N-m) of force.
Failure to follow these instructions can result in death,
serious injury, or equipment damage.
REVERSE POLARITY
Check cable polarity at both the battery and the
n
Freedom EX 4000 before making the final DC
connection. Positive must be connected to positive;
negative must be connected to negative.
Reversing the positive and negative battery cables will
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blow a fuse in the Freedom EX 4000 and void your
warranty.
Failure to follow these instructions can result in equipment
damage.
Figure 18 48V DC Cable Connections
1
2
3
1 serrated 48V DC terminal bolt flange nut
2 cable ring lug
3 48V DC terminal
4 DC knockout hole
5 DC cable with heat shrink insulation covering the lug stem
NOTE: The DC cable lug stem must be fully insulated with the heat shrink.
12. Before proceeding, double check that the cable you have
just installed connects the positive DC terminal of the
inverter/charger/converter to the disconnect/battery
selector switch, fuse holder, and that the other end of the
fuse holder is connected to the positive terminal of the
battery.
32
WARNING
NOTICE
5
FIRE HAZARD
Do not complete the next step if flammable fumes are
present. Explosion or fire may result if the disconnect/battery
selector switch is not in the off position. Thoroughly ventilate
the battery compartment before making this connection.
Failure to follow these instructions can result in death,
serious injury, or equipment damage.
13. Route the negative cable through the left side strain relief
clamp and connect the cable from the negative post of the
battery to the negative 48V DC terminal of the
inverter/charger/converter.
14. Fasten the DC terminal nut (set aside earlier) to the
terminal bolt. Tighten the nut to a torque of 8–9 N-m (71–
80 in-lb ) of force. Do not overtighten. Make the connection
snug enough so the cable lug does not move around on the
DC terminal. Center it through the DC knockout hole and
do not let it touch the edge.
15. If applicable, connect the DC output cables. See 12V DC
Output Cables on page 33.
16. Replace the wiring compartment cover by tightening the
captive nut panel screw. See the following electrical
shock hazard warning.
ELECTRICAL SHOCK HAZARD
4 Use a torque screwdriver to tighten the captive nut panel
screw to 5 in-lb (0.56 N-m) torque of force to ensure a proper
ground connection and a required tool access to the wiring
compartment.
Failure to follow these instructions can result in death,
serious injury, or equipment damage.
WARNING
WARNING
Freedom EX 4000 Installation Guide