Page 1
I N S T A L L A T I O N I N S T R U C T I O N S
Ceiling Tile Storage Kits
CMS491/492 Series
Page 2
CMS491/492
DISCLAIMER
Legrand | AV and its affiliated corporations and
subsidiaries (collectively “Legrand | AV”), intend to make this
manual accurate and complete. However, Legrand | AV makes
no claim that the information contained herein covers all details,
conditions or variations, nor does it provide for every possible
contingency in connection with the installation or use of this
product. The information contained in this document is subject
to change without notice or obligation of any kind. Legrand | AV
makes no representation of warranty, expressed or implied,
regarding the information contained herein. Legrand | AV
assumes no responsibility for accuracy, completeness or
sufficiency of the information contained in this document.
Chief® is a registered trademark of Legrand | AV Inc.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: A WARNING alerts you to the possibility of
serious injury or death if you do not follow the instructions.
CAUTION: A CAUTION alerts you to the possibility of
damage or destruction of equipment if you do not follow the
corresponding instructions.
WARNING: Failure to read, thoroughly understand, and
follow all instructions can result in serious personal injury,
damage to equipment, or voiding of factory warranty! It is the
installer’s responsibility to make sure all components are
properly assembled and installed using the instructions
provided.
WARNING: Failure to provide adequate structural strength
for this accessory can result in serious personal injury or
damage to equipment! It is the installer’s responsibility to
make sure the structure to which this accessory is attached
can support five times the combined weight of all equipment.
Reinforce the structure as required before installing the
component.
Installation Instructions
WARNING: Use this mounting system only for its intended
use as described in these instructions. Do not use
attachments not recommended by the manufacturer.
WARNING: For indoor use only.
WARNING: Never operate this mounting system if it is
damaged. Return the mounting system to a service center
for examination and repair.
IMPORTANT ! : The CMS491/492 has been designed to be
mounted recessed into a suspended ceiling secured by a
WireVice system.
IMPORTANT ! : The CMS491/492 has been designed to
support a single electrical receptacle or a double receptacle.
NOTE: Spacings - To ensure safe operation of the equipment
installed in the enclosure, per National Electric Code,
ANSI/NFPA 70, a minimum separation between power cords
and signal or communication cables may be required.
NOTE: It is the installer’s responsibility to ensure that the
enclosure is bonded to the ground in the switch box, in accordance with the National Electric Code, ANSI/NFPA 70 or
Canadian Electrical Code, CSA C22.1. A green grounding
screw is provided in the enclosure for the purpose, if required.
NOTE: This Cabinet System is for use with Listed ITE or
Audio/Video equipment only.
NOTE: When selecting a Listed 120 Vac Receptacle for use as
the main power source for the CMS Series boxes (to power the
A/V equipment), make sure that AC Receptacle is rated at least
15A and it is used in the building's AC branch circuit that is
connected to a circuit breaker rated at least 15A.
connect more than 12A from the 15A Receptacle, or 16A from the
20A Receptacle.
In the U.S., the equipment shall be installed per the applicable
requirements of the National Electrical Code, ANSI/NFPA 70.
In Canada, the equipment shall be installed per the applicable
requirements of the Canadian Electrical Code, CSA C22.1.
Do not
WARNING: Exceeding the weight capacity can result in
serious personal injury or damage to equipment! It is the
installer’s responsibility to make sure the combined weight of:
all components located in the complete accessory does
•
not exceed 100 lbs (45 kg).
Series component shelf may not exceed 25 lbs (22 kg)
per shelf;
(CMS491C/CMS492C models only) does not exceed
50 lbs (22 kg).
components attached to the CMS491/CMS492
• all
all components attached to the extension column,
•
2
NOTE:
The CMS491/492 Series consists of:
• CMS491 1x2 Standard Ceiling Box
• CMS491C 1x2 Ceiling Box with Column Drop
• CMS492 2x2 Standard Ceiling Box
• CMS492C 2x2 Ceiling Box with Column Drop
NOTE:
The CMS491C and CMS492C each accommodate a
Listed Chief CMS Series extension column (not included).
--SAVE THESE INSTRUCTIONS--
Page 3
Installation Instructions
DIMENSIONS
CMS491
CMS491/492
12.97
329.5
1.13
TILE INSERTION SPACE
8.67
220.1
28.6
1 REMOVABLE SHELF INCLUDED
2 SPACES TOTAL AVAILABLE
7.58
192.4
AVAILABLE
STORAGE HEIGHT
A
19.25
489.0
TILE WIDTH
B B
23.67
601.1
MOUNTING WIDTH
SECTION B-B
TOP SHELF SPACE
1.91
48.4
1.38
34.9
DOOR DROP
0-
0.25
6.4
SIDE TRIM EXTENSION
(MIN-MAX) DEPTH ADJUST
ELECTRICAL I NSTALL PLATE SPACE FOR
2.25
57.2
BOTTOM SHELF SPACE
A SINGLE GANG OUTLET1.
DUAL GANG OUTLET2.
PASS THROUGH FOR DUAL GANG3.
OUTLET ATTACHED TO 1/2" CONDUIT
0.88
22.2
TRADE CONDUIT SIZE 1/2"
METRIC CONDUIT SIZE 16mm
1.38
34.9
TRADE CONDUIT SIZE 1"
METRIC CONDUIT SIZE 27mm
DETAIL A
SCALE 1 : 2
1.73
44.0
TRADE CONDUIT SIZE 1-1/4"
METRIC CONDUIT SIZE 35mm
CMS491C
TILE INSERTION SPACE
12.97
329.5
1.13
28.6
1 REMOVABLE SHELF INCLUDED
2 SPACES TOTAL AVAILABLE
B B
8.67
220.1
7.61
193.3
AVAILABLE
STORAGE HEIGHT
A
PIPE DROP TRAVEL
MOUNTING WIDTH
SECTION B-B
19.25
489.0
TILE WIDTH
13.63
346.1
23.67
601.1
TOP SHELF SPACE
1.38
34.9
DOOR DROP
ELECTRICAL INSTALL PLATE SPACE FOR
A SINGLE GANG OUTLET1.
DUAL GAN G OUTLET2.
2.59
65.9
PIPE DROP
CENTER
5.02
1.91
48.4
127.5
PIPE DROP
MIN CENTER
SIDE TRIM EXTENSION
2.25
57.2
BOTT O M SHELF SPA CE
DETAIL A
SCALE 1 : 2
0.25
6.4
ELECTRICAL INSTALL PLATE SPACE FOR
A SINGLE GANG OUTLET1.
DUAL GAN G OUTLET2.
PASS THROUGH FOR DUAL GANG3.
OUTLET ATTACHED TO 1/2" CONDUIT
0.88 22.2
TRADE CONDUIT SIZE 1/2"
METRIC CONDUIT SIZE 16mm
1.38 34.9
TRADE CONDUIT SIZE 1"
METRIC CONDUIT SIZE 27mm
44.0
1.73
TRADE CONDUIT SIZE 1-1/4"
METRIC CONDUIT SIZE 35mm
3
Page 4
CMS491/492
DIMENSIONS
CMS492
Installation Instructions
A
24.97
634.3
CMS492C
0.25
TILE INSERTION SPACE
TILE INSERTION SPACE
6.4
23.69
601.7
MOUNTING
LENGTH
1 REMOVABLE SHELF INCLUDED
2 SPACES TOTAL AVAILABLE
7.60
192.9
AVAILABLE
STORAGE HEI G HT
1.13
28.6
5.02
19.25
489.0
TILE WIDTH
B B
23.67
601.1
MOUNTING W ID TH
SECTION B-B
TOP SHELF SPACE
23.67
601.1
A
19.25
489.0
TILE WIDTH
13.63
127.5
346.1
PIPE DROP TRAVEL
8.67
220.1
2.25
57.2
BOTTOM
SHELF SPACE
1.91
48.4
1.38
34.9
DOOR DROP
ELECTRICAL INST ALL PLATE SPACE FOR
A SINGLE GANG OUTLET1.
DUAL GANG OUTLET2.
ELECTRICAL INSTALL PLATE SPACE FOR
A SINGLE GANG OUTLET1.
DUAL GANG OUTLET2.
PASS THROUGH FOR DUAL GANG3.
OUTLET ATTACHED TO 1/2" CONDUIT
0.88
22.2
TRADE CONDUIT SIZE 1/2"
METRIC CONDUIT SIZE 16mm
34.9
TRADE CONDUIT SIZE 1"
METRIC CONDUIT SIZE 27mm
DETAIL A
SCALE 1 : 2
1.73
44.0
TRADE CONDUIT SIZE 1-1/4"
METRIC CONDUIT SIZE 35mm
1.38
1 REMOVAB LE SHELF
INCLU DE D 2 SPA CES
24.97
634.3
8.67
220.1
TOTAL AVAILABLE
7.60
192.9
AVAILABLE
STORAGE HEIGHT
B B
23.67
601.1
MOUNTING WIDTH
SECTION B-B
TOP SHELF SPACE
48.4
1.91
9.40
238.9
PIPE DROP
TRAVEL
MOUNTING
2.69
68.3
PIPE DROP
MIN CENTER
2.25
57.2
BOTTOM
SHELF SPACE
23.69
601.7
LENGTH
DETAIL A
SCALE 1 : 2
ELECTRICAL INST ALL PLATE SPACE FOR
A SINGLE GANG OUTLET1.
DUAL GANG OUTLET2.
PASS THROUGH FOR DUAL GANG3.
OUTLET ATTACHED TO 1/2" CONDUIT
0.88
22.2
TRADE CONDUIT SIZE 1/2"
METRIC CONDUIT SIZE 16mm
1.38
34.9
TRADE CONDUIT SIZE 1"
METRIC CONDUIT SIZE 27mm
1.73
44.0
TRADE CONDUIT SIZE 1-1/4"
METRIC CONDUIT SIZE 35mm
4
Page 5
Installation Instructions CMS491/492
LEGEND
+
Tighten Fastener
Apretar element o de fijación
Befestigungsteil festziehen
Apertar fixador
Serrare il fissaggio
Bevestiging vastdraaien
Serrez les fixations
Loosen Fastener
Aflojar elemento de fijación
Befestigungsteil lösen
Desapertar fixador
Allentare il f issaggio
Bevestiging losdraaien
Desserrez les fixations
Phillips Screwdriver
Destornillado r Phillips
Kreuzschli tz schr aubendreher
Chave de fendas Phillips
Cacciavite a stella
Kruiskopschroevendraaier
Tournevis à pointe cruciforme
Pencil Mark
Marcar con lápiz
Stiftmarkierung
Marcar com lápis
Segno a matita
Potloodmerkteken
Marquage au crayon
Drill Ho le
Perforar
Bohrloch
Fazer furo
Praticare un foro
Gat boren
Percez un trou
Adjust
Ajustar
Einstellen
Ajustar
Regolare
Afstellen
Ajuster
Flathead Screwdriver
By Hand
A mano
Von Hand
Com a mao
A mano
Met de hand
A la main
Target of Projector
Punto de enfoque del proyector
Ziel des Projektors
Mira do projector
Punto di proiezione
Doel van de projector
Cible du projecteur
Remove
Quitar
Entfernen
Remover
Rimuovere
Verwijderen
Retirez
Hammer
Martillo
Hammer
Martelo
Martello
Hamer
Marteau
Security Wrench
Llave de seguridad
Sicherheitsschlussel
Chave de seguranca
Chiave di sicurezza
Veiligheidssleutel
Cle de securite
5
Page 6
CMS491/492
TOOLS REQUIRED FOR INSTALLATION
1/4”
optional
5/32”
PARTS INCLUDED
NOTE: Some items may vary depending on specific model number.
#2 Flathead
#2 Phillips
Installation Instructions
12345
P
(2x)
Projector Mount Plate
Tile Side Trim
A
Install Box
(CMS492 shown)
Hardware Bag #1 Hardware Bag #2
D
#10-24 x 1/4
Pan Head
Machine Screw
M
5/32” Security Key
E
#10-24 x 1/4
Button Head
Security Screw
(4x)
H
#10-24 x 1”
Pan Head
Tapping Screw
F
Security
Spinner
B
Component
Shelf
G
#10-24 x 5/8
Pan Head
Tapping Screw
(4x)
(4x)
I
#10-24
Thumb Nut
(4x)
J
.262 x 1 5/16
Eye Lag
C
Projector Mount Plate
K
1/4" x 2"
Wire Anchor
OPTIONAL PARTS PER CUSTOM CONFIGURATION (NOT INCLUDED)
(4x)
(4x)
L
Cable Lock
(Wire Vice)
(4x)
N
25 ft length
Cable
Conduit Connectors
Flexible Conduit 1/2”, 1” or 1-1/4”
3” x 2” Switch Box
(2” deep)
Raco #420 or equiv.
Electrical
Outlet
Outlet Box Cover
Zip Ties
Chief
CMS1RU
Shelf Rack
Adaptor (4x)
6
Page 7
Installation Instructions CMS491/492
PREPARING FOR INSTALLATION
Installation Requirements
The CMS491/492 has been designed to be mounted recessed
into a suspended ceiling consisting of 2’ x 2’ ceiling tiles and
secured by a Wire Vice system.
NOTE: Regarding location selection for models CMS491C/
CMS492C: The design of the projector mount plate/ceiling AV
enclosure system does not require pre-measurement of the
mount location other than choosing the tile placement of the
enclosure. If you are pre-measuring for projector mount
location be sure to consider the items below.
• Dimensional offset of the display/projector relative to
column (due to mount and interface).
• For projectors: any r ecommended dimensions of
projector relative to target (see installation instructions
included with the projector).
Figure 1
SUPPORT CABLE INSTALLATION
WARNING: Failure to provide adequate structural
strength for this component can result in serious personal
injury or damage to equipment! It is the installer’s
responsibility to make sure the structure to which this
component is attached can support five times the combined
weight of all equipment. Reinforce the structure as required
before installing the component.
Solid Concrete Ceiling Structure
WARNING: Anchors must be installed into structurally
sound solid concrete with a minimum thickness of 1.75"
(44.5mm) or greater. Installation into hollow concrete block,
mortar, or concrete that exhibits cracking, spalling, or other
defects may result in failure of anchor and serious personal
injury or damage to equipment!
1
Drill 1/4" diameter x 1-3/8" deep pilot hole at each marked
cable anchor support location (See Figure 3). Ensure hole
is at least 2-1/2" from nearest concrete edge. Remove
debris from hole.
Preparing Framework
Remove one 2’ x 2’ tile from ceiling.
1
Move/reconfigure existing wires or conduit if obstructing
2
location.
Pre-install cable hanger system.
3
x 4
15º
15º
Solid Concrete Ceiling Structure
K
1
3
N
2
1/4"
Figure 3
2
Tap anchor (K) into each hole to a depth of at least 1"
(25mm) (See Figure 3).
4
WARNING: Failure to properly set anchor may result in
failure of anchor and serious personal injury or damage
to equipment!
Figure 2
Examine ceiling structure (solid concrete, wood or steel
truss) above kit to be installed to identify four support
cable anchor locations. Each location should be
approximately 15º outside of support holes in kit
assembly. Mark locations with a pencil.
3
Using claw portion of hammer, set each anchor (K) by
pulling it out of hole approximately 1/4" (6.4mm). (See
Figure 3)
Insert portion of manufactured loop on cable (N)
4
through hole in anchor (K) (See Figure 3). Insert end
of cable (N) through loop. Repeat for 3 remaining
support locations.
7
Page 8
CMS491/492
Installation Instructions
Wood Ceiling St ructure
WARNING: Anchors must be installed into wood with a
minimum thickness of 1-1/2" (38.1 mm) or greater.
1
Drill 5/32" diameter x 2" deep hole at each marked cable
anchor support location (See Figure 4). Remove debris
from hole.
Wood Ceiling Structure
J
1
5/32"
Figure 4
N
32
Installing Electrical Box and Outlets
Determine desired location for installing electrical outlets
within box.
Figure 6
Projector mount plate
install option
Box sidewall
install option
Box Sidewall Electrical Install Option
Remove two-piece electrical plate from box sidewall.
1
Save screws for re-attachment. Break away inner portions
of plate halves. Attach a pair of outlets to an electrical box,
then attach plate halves to outlet box configuration.
Fully thread eye lag (J) into each hole (See Figure 4).
2
Route end of cable (N) through eye lag (J) and then
3
through cable loop (See Figure 4). Repeat for 3
remaining support locations.
Steel Truss Ceiling Structure
Route end of cable (N) over truss at marked cable anchor
1
support location and then through cable loop. (See
Figure 5) Repeat for 3 remaining support locations.
STEEL TRUSS
Ceiling Structure
1
N
Figure 5
CAUTION: Injury may occur on sharp edges. Carefully
discard the removable tabs.
Insert tab on bottom edge of electr ical plate into opening
2
on side wall of box. Rotate to flatten against box, and
affix plate to box by re-using screws removed in Step 1.
Figure 8
Figure 7
8
Page 9
Installation Instructions CMS491/492
Projector Mount Plate Electrical Install Option
Remove attached electrical plate from underside of
1
projector mount plate. Save nuts for reinstall.
Remove break away panel from projector mount plate.2
CAUTION:
Avoid sharp
edges.
Figure 9
Attach a pair of outlets to an electrical box, then attach
3
accompanying one-piece electrical plate to outlet box
configuration.
Figure 10
Cleat adjustment for various tile he ights
Loosen screws along side cleat, adjust and retighten as
1
needed to accommodate for tile height.
Figure 13
Loosen and adjust
NOTE: Remove the cleat entirely to allow the enclosure to be
mounted closer to the tile grid frame.
Placing CMS491/492 into Ceiling Str ucture
If outlet box configuration is attached to wiring/conduit
4
prior to box attachment, remove two-piece electrical plate
from box sidewall, feed configuration through large
opening. Then re-attach two-piece plate to close around
conduit.
Figure 11
Attach complete outlet box configuration to projector
5
mount plate as shown below in figure 12. Secure by
re-attaching nuts removed in Step 1.
Figure 12
Carefully insert box through opening. Note angled back
1
edges design which allow box to fit through 2’ x 2’ opening.
Figure 14
chamfered corners
for easy clearance
2
Rotate and drop box to gently rest into place onto drop
ceiling framework.
Figure 15
9
Page 10
CMS491/492
Installation Instructions
Installing Cable to Box Frame
Remove adjacent ceiling tiles as needed to access cable
1
attachment locations.
2
Attach cables as shown (figure 17) using cable locks (L) to
secure cable, adjusted to proper length - allowing box to
be level, and NOT RESTING ON CEILING FRAMEWORK .
(N)
(L)
Figure 16
5
Secure CMS491/492 assembly in place by feeding
#10-24 x 5/8 pan head tapping screws (G) through holes
as shown and tighten until secure against ceiling tile
framing (2 screws each on opposite sides of the
assembly).
Figure 18
Ceiling
Frame
Adding Components
NOTE: The CMS491/CMS492 box is designed for attaching a
component shelf at two different heights. The following
instructions refer to installing the Listed accessories CMSUNV1
and CMSUNV2.
WARNING: Exceeding the weight capacity can result in
serious personal injury or damage to equipment! It is the
installer’s responsibility to make sure the weight of all
components attached to the CMS491/CMS492 Series
component shelf, does not exceed 25 lbs (22 kg) per shelf.
Attach component to shelf prior to install. Component may
1
be attached either on top of shelf or below shelf.
Attach components per component manufacturer
recommended method(s).
Figure 19
Figure 17
WARNING: Not properly supporting box with cable hanger
system may lead to serious injury or death.
CAUTION: Failure to properly tension cables (N) may
result in damage to ceiling tile framework.
3
Thread each cable (N) completely through cable lock (L)
corresponding hole in corner of CMS491/492 frame, and
completely through opposite side of cable lock (L)
(see figure 17).
Adjust cable tension until CMS491/492 frame is supported
4
entirely and evenly by all four support cables, but not so
tight as to distort ceiling tile framework.
Component
Shown Above
Attach one #10-24 thumb nut (I) to each
2
threaded post.
3
Position shelf (with component attached) into box and
hook four corner slots onto the posts of the shelf supports.
Component
Shown Below
Figure 20
10
4
Hand tighten nuts (I) to secure shelf in place.
Page 11
Installation Instructions CMS491/492
Finish Install Site
1
Pre-cut a ceiling tile to fit inside the drop panel framework
SIZE:
CMS491: 19 1/8” x 10 3/8”
CMS492: 19 1/8” x 22 1/8”
NOTE: If installing models CMS491C/492C cut ceiling tile to fill
gaps around mounting plate. Install tile trim (P) on edges of tile
that touch mounting plate, and fold trim tabs over tile.
(see Figure 21). Install tile with trim attached AFTER installing
projector mount plate.
Fold trim tabs
over tile
Ceiling tile
Figure 21
Finish frame assembly by opening four latches in door
2
panel dropping panel down. Slide tile (cut to size) into
location.
Projector Mount Plate and Extension Column
Installation
NOTE: The following instructions refer to installing Models
CMS491C and CMS492C, or installing the Listed accessories
CMS441 and CMS442 into Models CMS491 and CMS492,
respectively.
OPTIONAL: Install the electrical outlets as outlined in the
Installing Electrical Box and Outlets section of this
instruction manual.
1
Install four 10-24 x 1" screws (H) into projector mount
plate (2 at each end), and install projector mount plate
into position inside box (see Figure 23).
Figure 23
Figure 22
3
Push panel assembly back into place and rotate latches
to lock position.
Once into position, drop plate down onto mounting rails.2
WARNING: Exceeding the weight capacity can result in
serious personal injury or damage to equipment! It is the
installer’s responsibility to make sure the combined weight
of all components attached to the CMS491C/CMS492C
extension column, does not exceed 50 lbs (22 kg).
3
Install 1-1/2" NPT or NPSM following ANSI/ASME
B1.20.1 (Schedule 40, 0.154" minimum thickness steel or
aluminium - ASTM B221) threaded extension column
(not included) into extension column support until tight,
with a minimum of four threads engaged.
Figure 24
1 1
Page 12
Installation Instructions CMS491/492
4
Secure extension column by one of the following
methods (See Figure 25):
A. Install one 10-24 x 1/4" Phillips pan head screw (D)
into extension column support, tightening firmly
against column.
B. OPTIONAL: Install one 10-24 x 1/4" button head
security screw (E) through security spinner (F) into
column support, tightening firmly against column.
NOTE: Security spinner (F) is designed to spin, even when
screw is tight.
Figure 25
(D)
A
B
(F)
(E)
5
Install and power the projector to generate the image
profile to match to the screen (make sure to adjust the
resolution settings and aspect ratio of the projector to
desired settings)
6
Move the mount plate as required to adjust the image
to the target screen (note that the CMS491C/
CMS492C enclosure may be moved within the tile to
aid in location of the mount plate).
7
Tighten the four screws on both ends of the mount plate,
and the four screws on the sides of the CMS492C
projector mount plate to secure the projector position
within the enclosure.
1 2
Page 13
CMS491/492
Installation Instructions
13
Page 14
Installation Instructions CMS491/492
1 4
Page 15
CMS491/492
Installation Instructions
15
Page 16
CMS491/492
Installation Instructions
8800-003096 Rev01
2019 Legrand | AV
www.legrandav.com
08/19
USA/International A 6436 City West Parkway, Eden Prairie, MN 55344
P 800.582.6480 / 952.225.6000
F 877.894.6918 / 952.894.6918
Europe A Franklinstraat 14, 6003 DK Weert, Netherlands
P +31 (0) 495 580 852
F +31 (0) 495 580 845
Asia Pacific A Office No. 918 on 9/F, Shatin Galleria
18-24 Shan Mei Street
Fotan, Shatin, Hong Kong
P 852 2145 4099
F 852 2145 4477
Loading...