CHIEF CMS491, CMS492 User Manual
INSTALLATION INSTRUCTIONS
Ceiling Tile Storage Kits
CMS491/492 Series
CMS491/492
DISCLAIMER
Milestone AV Technologies and its affiliated corporations and
subsidiaries (collectively “Milestone”), intend to make this
manual accurate and complete. However, Milestone 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. Milestone
makes no repres entation of warranty, expressed or implied,
regarding the i nform ation contained herein. Milestone assumes
no responsibility for accuracy, completeness or sufficiency of
the information contained in this document.
Chief® is a regist ered tra demark of Mil estone AV Technologies.
All rights reserved.
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 equip men t if you do not follow the
corresponding instructions.
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: Ambient Temperature - The manufacturer's maximum
ambient temperature is 120°F (49°C) and minimum ambient
temperature is 40°F (4°C) so that the installer is able to
determine acceptability of use of accessories and components
in the operating environment.
NOTE: Spacings - To ensure safe operation of the equipment
installed in the enclosure, per National Electric Code,
ANSI/NFPA 70 Article 725.136(D)(1), a minimum separation of
6mm (0.25 in.) between power cords and signal or communication cables must be maintained.
WARNING: Failure to read, thoroughly understand, and
follow all instruc tions can result in serious personal injury,
damage to equipment, or vo iding of factory warranty! It is the
installer’s responsibility to make sure all components are
properly assembl ed and installed using the instruct ions
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 weig ht of all equipment.
Reinforce the structure as required before installing the
component.
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).
• all components attached to the CMS491/CMS492
Series component shelf may not exceed 25 lbs (22 kg)
per shelf;
• all components attached to the extension column,
(CMS491C/CMS492C models only) does not exceed
50 lbs (22 kg).
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. Do not
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.
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--
2
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 ATTACH ED 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 SPACE
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
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
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
Destornillador Phil lips
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
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