Vertiv
| Liebert
®
NXL
™
500-750kVA UPS Installation Manual |
10
Once the equipment has been positioned and secured, connect the power cables as described
below (refer to the appropriate cable connection drawing in
1.
Verify that the UPS equipment is isolated from its external power source and all the UPS power isolators
are open. Check that these supplies are electrically isolated and post any necessary warning signs to
prevent their inadvertent operation.
2.
Open exterior and interior panels on the front of the I/O sections.
3.
Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in
the I/O sections.
4.
Make power connections and tighten the connections to the proper torque.
Ensure correct phase rotation.
5.
For control connection details, see
2.4 - Control Cable and Communication
6.
Close and secure the interior and exterior doors.
7.
Attach the cabinet EMI plates to the top of the UPS at each shipping split (625kVA or 750kVA only). See
8.
Attach the kick plates and filters to the bottom of the unit. See
Figure 2
Cabinet EMI plates - 625kVA and 750kVA only
WARNING
Failure to follow adequate grounding procedures can result in electric shock hazard to
personnel, or the risk of fire, should a ground fault occur.
All operations described in this section must be performed by properly trained and
qualified electricians or technical personnel. If any difficulties are encountered, contact
Vertiv. See the back page of this manual for contact information.
The grounding and neutral bonding arrangement must be in accordance with local and
national codes of practice.
WARNING
Risk of electrical shock. Can cause injury or death.
If the load equipment will not be ready to accept power on the arrival of the commissioning
engineer, ensure that the system output cables are safely isolated at their termination.
WARNING
Risk of electrical shock. Can cause injury or death.
When connecting the cables between the battery extremities to the circuit breaker, always
connect the circuit breaker end of the cable first.
NOTE
If fault bracing brackets were removed during installation, they MUST be replaced.
Note location
of larger cutouts.
Orient ground plate
as shown.
A
Mounting
Hardware
(Supplied)
Installed at Each Shipping Split
Detail A
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