2.3.1 Mounting the Panel
CAUTION: Check building plans and other relevant documents to determine whether mounting
the Liebert AC8 at the selected location might cause cutting or otherwise damaging electrical
or communication wiring or pipes.
To mount the panel:
1. Mark the wall for the cutout to accommodate the panel, using the back of the unit as a
template.
2. Drill a pilot hole for the saw blade, if required.
3. Use the saw to cut out the marked section of the wall (if not new construction).
4. Rest the Liebert AC8 in the wall and mark where mounting screws will be inserted into the wall
studs or other support member.
5. Remove the panel and drill the holes for the mounting screws or wall anchors. Clean up the
debris.
6. Reverse the slide direction of the rectangular access doors on the top and bottom of the
Liebert AC8. Leaving the doors as shipped from the factory prevents them from being opened
when the panel is flush mounted in a wall.
7. Attach any field-supplied mounting hardware.
8. Reinsert the assembly into the wall.
9. Insert and tighten the screws or wall anchors.
2.4 Connect Power to the Liebert AC8
The Liebert AC8 must be supplied with 115VAC or 230VAC; the power supplied must match the rating of
the unit’s Transformer Module. For information, consult your local dealer, Liebert representative or the
Liebert Worldwide Support Group.
The Liebert AC8 must be installed on a branch circuit protected by a certified 15A overcurrent device.
WARNING! Check that power is removed from wires prior to installation.
CAUTION: The Liebert AC8 is designed for use on properly grounded (earthed) 115VACor
230VAC power, 60Hz or 50Hz. The ground wire for the power lead must be wired to the earth
ground terminal (stud located next to the 24VAC terminal block).
This equipment is intended to be installed by a qualified and certified electrician who must
review and approve customer supplied wiring and circuit breakers, verify correct input and
grounded (earthed) connections to ensure compliance with technical standards and national
and local electrical codes.
WARNING! Be sure that the Power On/Off switch is set to OFF before installing any wiring to
this unit. The switch is in the top left corner of the unit, just below the battery pack.
Vertiv | Liebert® AC8 User Manual | 14
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