Liebert RMKIT18-32 Quick Start Guide
ADJUSTABLE RACK-MOUNT KIT INSTALLATION
This kit contains parts needed to mount several different models of Uninterruptible Power Supplies (UPS)
and Battery Cabinets into EIA310-D Standard 4-Post Racks that are 18" to 32" deep. The weight limit
per pair of Adjustable Rack-Mounting Brackets is 250 pounds (113 kg). Parts included are: (2) Rear
Bracket Members, (2) Front Bracket Members, (2) Inner Bracket Members, (16) M4 x 8 mm Machine
Screws, and (12) M5 x 12 mm Machine Screws. Tools needed for installation are: a Phillips Screwdriver
and a 7 mm Wrench. The Adjustable Rack-Mounting Brackets feature Retaining Latches to prevent
users from inadvertently sliding the UPS or Battery Cabinet out of the Rack.
1. Unpack (2) Rack-Mounting Bracket Assemblies and
mounting hardware from this kit. Bracket
Assemblies are interchangeable between left-hand
or right-hand. Remove Inner Member of each
Bracket Assembly as shown in Figure 1 by
extending it to its outermost position, depressing
the Retaining Latch and then pulling Inner Member
from Bracket Assembly.
2. Determine the height position inside the Rack
Enclosure where you want to mount the UPS or
Battery Cabinet. (CAUTION: REDUCE RISK OF
TIPPING THE RACK ENCLOSURE BY PLACING
UPS OR BATTERY CABINET IN THE LOWEST
POSSIBLE RACK POSITION.) Install Rear
Member of each Bracket Assembly into Rack
Enclosure with (2) M5 Screws provided in this kit.
(See Figure 2) Return flanges on Bracket
Assembly fit to the inside of Rack Mounting Rails.
Insert Screws loosely (finger-tight) into top and
bottom holes of return flange on Rear Member.
Extend Bracket Assembly by sliding Front Member
forward until it touches the front Rack Mounting
Rail. Insert (2) M5 Screws loosely (finger-tight) into
top and bottom holes of return flange on each Front
Member. Make sure Bracket Assemblies are at the
same mounting height on all (4) Rack Mounting
Rails.
3. Locate (8) M4 Screws and (8) M4 Nuts from
hardware pack in this kit. Each Nut has a locking,
nylon insert that begins gripping the Screw when it
is halfway tight. Make sure to tighten Nut and
Screw completely to assure locking action. Fasten
Rear Member and Front Member together using (4)
Screws and (4) Nuts per Bracket Assembly as
shown in Figures 3A and 3B. For maximum
support, locate fasteners for each Bracket
Assembly as far apart as possible, depending on
rack depth, while still joining both Members (See
Figures 3A and 3B). Check alignment of Bracket
Assemblies and TIGHTEN ALL SCREWS FROM
STEPS 2 AND 3.
RETAINING
LATCHES
INNER
MEMBERS
FRONT RACK
MOUNTING
M5
SCREWS
M4 NUTS
18" RACK
DEPTH
Figure 1
REAR RACK
MOUNTING
Figure 2
M4
SCREWS
M4 NUTS
Figure 3A
RETURN
FLANGES
REAR
MEMBERS
FRONT
MEMBERS
M5
SCREWS
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ADJUSTABLE RACK-MOUNT KIT INSTALLATION
4. Prepare the UPS or Battery Cabinet (the
"equipment") for rack mounting by following
instructions in the equipment's user manual. The
equipment may require additional parts to be added
or parts to be removed for rack mounting. After it is
prepared, lay equipment in rack-mounting position.
Fasten Inner Members from Step 1 to the
equipment on both sides as shown in Figure 4 with
(8) M4 Screws provided in this kit. Make sure
Retaining Latch is near the rear of the equipment
as shown (See Figure 4).
5. (CAUTION: LIFTING EQUIPMENT INTO RACK
MAY BE A TWO-PERSON JOB, DEPENDING ON
WEIGHT OF EQUIPMENT. SEE EQUIPMENT'S
USER MANUAL.) Insert the equipment, with Inner
Members attached from Step 4, into Bracket
Assemblies by inserting top and bottom edges of
Inner Members into the top and bottom, curved
tracks of Front Members and sliding the equipment
into Rack (See Figure 5A). Ends of Inner Members
are tapered to allow rear of the equipment to be
angled upward before insertion, if space allows.
Then the rear, bottom edges of Inner Members can
be placed into front edge of bottom tracks, and the
front of the equipment can be tipped up into
horizontal position to insert the top edges of Inner
Members before sliding the equipment into Rack
(See Figure 5B). The equipment should move
smoothly into Bracket Assemblies. If not, recheck
alignment of Front and Rear Members from Steps 2
and 3.
6. Secure front of the equipment to Rack Mounting
Rails to prevent the equipment from sliding out of
position. If securing holes are provided on front of
the equipment that align with the center holes on
return flange of Front Members, you can use the
extra (4) M5 Screws provided in this kit to secure
the equipment. Otherwise, the equipment should
be secured to front of Rack Mounting Rails with (4)
customer-supplied fasteners.
Part Number 202827 2/14 Rev. 1
M4 NUTS
32" RACK
DEPTH
M4
SCREWS
FRONT
UPS OR
BATTERY
CABINET
Figure 3B
UPS OR
BATTERY
CABINET
Figure 4
Figure 5A
Figure 5B
M4
SCREWS
M4 NUTS
RETAINING
LATCH
M4
SCREWS
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