Installation Instructions

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 2. Placing the Bays and Installing Internal/External Busbars Page 2-3
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PLACING AND SECURING LIST 1 AND LIST 11
POWER/DISTRIBUTION BAYS (WITHOUT PDSC)
Note: If you are installing List 2 and List 12 bays (with List 30, 31, or 32 PDSC), skip this
procedure and refer to “Placing and Securing List 2 and List 12 Power/Distribution
Bays (with PDSC)".
• PDSC = AC Input 'Power Distribution Service Cabinet'.
• Refer to Figure 2-1 through Figure 2-9 as this procedure is performed. Figure 2-1
provides a floor hole drilling pattern.
• Bays are typically placed next to each other and bolted together. Refer to the
previous Section, GENERAL REQUIREMENTS, for bay line-up recommendations.
Procedure
1) Remove all front Rectifier mounting position blank cover panels from each
Power/Distribution Bay to provide access to bay's floor mounting holes and
leveling feet. Cover panels will be re-installed in empty Rectifier mounting
positions after all Rectifiers are installed. To do so: Remove the screws and
ground washers securing the cover panel. Remove the cover panel.
Preparing the Bays
2) Remove the three rear cover panels from each Power/Distribution Bay. These
cover panels will be re-installed after all mounting and electrical connection
procedures have been completed. To do so:
Top Panel: Loosen the screws
securing the cover panel. Lift the cover panel until the screw heads clear the
keyhole slots. Remove the cover panel.
Lower Panels:
3) Remove the side cover panels from each Power/Distribution Bay (two per side)
as follows, if equipped. Note that you may leave the side cover panels on the
"outside side" of the two end bays.
Remove the screws and
ground washers securing the panel. Remove the panel.
a) Remove the rear-most side cover panel as follows: Remove the screws
and ground washers securing the side cover panel. Screws are accessible
from the rear of the bay through holes in the side channels. After removing
screws, pivot rear edge of cover panel outward, then slide cover panel
toward rear of bay to disengage tabs at the front of the cover panel from slots
in the bay.
b) Remove the front-most side cover panel as follows: Open the bay's front
door. Remove the screws and ground washers securing the side cover
panel. Screws are accessible from the front of the bay through holes in the
side channels. After removing screws, pivot front edge of cover panel
outward, then slide cover panel toward front of bay to disengage tabs at the
rear of the cover panel from slots in the bay.
1) Place bay(s) in position. Note that clearance holes for 1/4” bolts are provided in
the side rails of each bay. These holes are for bolting the bays together.
Placing and Securing the Bay(s)
2) Level bay(s) as required, using leveling feet in base plate. Adjust leveling feet so
that all bays are even at top, and bolt holes in the side of each bay line up with
holes in the adjacent bay(s).
3) Bolt all bays together. Use 1/4” hardware, six places per pair of bays. Use a
ground washer in two locations with the 1/4" hardware bolting two bays together.