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Remove all rings, watches and other jewelry before servicing batteries.
•
Recycle used batteries. Spent or damaged batteries are environmentally unsafe. Refer to local codes for the
proper disposal of batteries.
•
A disconnect switch shall be provided by others for the AC input and AC output circuits.
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Risk of Electric Shock and Fire Hazard: replace fuse with the same type and rating.
CAUTION!
Risk of electric shock, do not remove panels or covers. There are no user serviceable
parts inside. Refer to qualified personnel.
1.4 External Battery Safety
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The power system requires an over-current protection device for the external batteries. Follow the local elec-
trical codes.
•
Ensure that the external battery connection is equipped with a disconnect.
WARNING!
The battery polarity must be correct or damage will result.
•
If the batteries are stored for extended periods before the installation, charge the batteries at least once
every three months to ensure optimum performance and maximum battery service life.
•
Refer to the battery manufacturer's recommendation to select the correct float and equalize charge voltage
settings. Failure to do so can damage the batteries. Verify that the battery charger's float and equalize set-
tings are correct.
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The batteries are temperature sensitive. During extremely cold conditions, a battery's charge acceptance
is reduced and requires a higher charge voltage. During extremely hot conditions, a battery's charge ac-
ceptance is increased and requires a lower charge voltage. To allow for changes in temperature, the battery
charger must be equipped with a temperature compensating system. For UPS configurations with rectifier,
refer to the rectifier manual for information about temperature compensation.
•
If the batteries appear to be overcharged or undercharged, first check for defective batteries and then verify
that the charger voltage settings are correct.
•
To ensure optimal performance, inspect the batteries according to the battery manufacturers recommenda-
tions. Check for signs of cracking, leaking, or unusual swelling. Some swelling is normal.
•
Check the battery terminals and connecting wires. Periodically clean the battery terminal connectors and re-
tighten them to the battery manufacturer's torque specifications. Coat the terminals with an approved battery
terminal coating such as NCP-2 or No-Ox.
•
Verify that the polarity of the cables are correct before connecting the batteries to the power module. The
polarity is clearly marked on the batteries. The battery breaker will trip and the rectifiers may be damaged if
the cables are connected with the wrong polarity.
•
Batteries are not provided and external battery cabinets are not part of this certification.
1.5 Utility Power Connection
Connecting to the utility must be performed by qualified service personnel only and must comply with local elec-
trical codes. The utility power connection must be approved by the local utility before the installation.
8
0260080-J0 Rev D
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