Liebert UPS User Manual page 13

NOTES FOR GXT6000T / 10000T - 208X UPS ONLY
1. The installer must provide circuit breaker protection according to local codes.
The utility disconnect must be within sight of the UPS. Maintain service
space around the UPS or use flexible conduit.
2. The installer must provide output distribution panels, circuit breaker
protection, or emergency disconnect switches according to local codes.
Output circuits must not share a common conduit with input circuits or any
other wiring. IMPORTANT - Distribute any 120VAC loads evenly between L1
AND L2A. Do not connect loads between the output terminals L2-N or L2-
L2A. These are not standard voltages.
3. Refer to the manual provided with any optional battery cabinets.
4. The single-phase isolating output transformer is a separately derived source.
The output neutral is already bonded to ground on the output terminals with
a Bonding Jumper. No other bonding wire is needed. (see NEC 250-5d,
250-26, 250.91, 250.92)
5. Install an 8 AWG (10 mm
250-5d, 250-81, 250-83, table 250-94) grounding electrode conductor
between the grounded circuit conductor (neutral) and the nearest effectively
grounded metal structural member, nearest effectively grounded metal water
pipe, or other grounding electrode in the grounding electrode system. If the
grounding electrode conductor must be protected, non-metal conduit is
recommended. If metal conduit must be used, bond both ends of the conduit
to the grounding electrode conductor. Conduit is not an acceptable
grounding electrode conductor.
6. The utility may be derived from a single-phase or three-phase source. The
line to ground voltages are dependant upon the grounding of the utility and
do not affect the output voltages. Do not use a floating AC source.
2
) (75° C copper wire) (minimum size, see NEC
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