CMS441 - Unspecified Chief - Free user manual and instructions

Product Type	Ceiling mount enclosure system for projectors and AV equipment
Model	CMS441
Brand	Chief (Milestone AV Technologies)
Compatible Models	CMS491, CMS492, CMS491C, CMS492C
Maximum Total Weight Capacity	100 lbs (45 kg)
Maximum Shelf Weight Capacity	25 lbs (22 kg) per shelf (CMSUNV1/CMSUNV2)
Maximum Extension Column Weight Capacity	50 lbs (22 kg) (for CMS491C/CMS492C)
Ceiling Type	Suspended ceiling with 2' x 2' tiles
Support System	WireVice cable hanger system (4 cables)
Electrical Outlet Support	Single or double electrical receptacle (15A minimum)
Material	Steel (powder-coated)
Dimensions (CMS491)	1x2 ceiling tile opening (19-1/8" x 10-3/8" tile cutout)
Dimensions (CMS492)	2x2 ceiling tile opening (19-1/8" x 22-1/8" tile cutout)
Extension Column Thread	1-1/2" NPT or NPSM (ANSI/ASME B1.20.1 Schedule 40, 0.154" min wall)
Indoor Use Only	Yes
Safety Standards	Complies with National Electrical Code (ANSI/NFPA 70) and Canadian Electrical Code (CSA C22.1)
Included Accessories	Mounting hardware, cable locks, screws, electrical plate
Optional Accessories	Extension column, component shelves (CMSUNV1, CMSUNV2), security screw
Installation Tools Required	Phillips screwdriver, flathead screwdriver, hammer, drill, claw hammer, pencil
Product Series	CMS Series
Warranty	Standard Chief warranty (refer to manual)

Frequently Asked Questions - CMS441 Chief

What is the maximum weight capacity for the CMS441 ceiling box?

The total weight of all components inside the CMS441 must not exceed 100 lbs (45 kg). Each shelf supports up to 25 lbs (22 kg), and the extension column (if used) supports up to 50 lbs (22 kg).

Can I install the CMS441 in a solid concrete ceiling?

Yes, but you must use the provided concrete anchors (1/4" diameter, 1-3/8" deep pilot holes) and ensure the concrete is at least 1.75" (44.5mm) thick. Follow the support cable installation instructions carefully.

What type of ceiling tile fits the CMS441?

The CMS441 is designed for 2' x 2' suspended ceiling tiles. For the standard box, cut a tile to 19-1/8" x 10-3/8" (1x2) or 19-1/8" x 22-1/8" (2x2) for the CMS492.

How do I secure the extension column on the CMS441C?

Use a 1-1/2" NPT or NPSM threaded column (Schedule 40 steel or aluminum). Engage at least four threads and tighten using the provided screw (either #10-24 x 1/4" pan head or security screw with spinner).

Does the CMS441 include electrical outlets?

No, the box has a removable electrical plate to accommodate a single or double electrical receptacle (rated at least 15A). You must purchase and install the outlets separately, following local electrical codes.

Can I mount a projector directly to the CMS441?

Yes, the CMS441 can be used with the optional projector mount plate and extension column (models CMS491C/CMS492C). The mount plate slides into the box and allows adjustment to align the projector with the screen.

What tools are required for installation?

You will need a Phillips screwdriver, flathead screwdriver, hammer, drill, claw hammer, and pencil. For concrete ceilings, additional tools for setting anchors may be needed.

How do I adjust the cleat for different ceiling tile heights?

Loosen the screws along the side cleat, adjust the cleat up or down to match the tile thickness, then retighten the screws. For maximum adjustment, you can remove the cleat entirely to allow the enclosure to sit closer to the grid.

Is the CMS441 suitable for outdoor use?

No, the CMS441 is designed for indoor use only. Exposure to moisture or extreme temperatures could cause damage or safety hazards.

How do I ensure the mounting system is properly grounded?

A green grounding screw is provided inside the enclosure. Connect the ground wire of the branch circuit to this screw, following the National Electrical Code (ANSI/NFPA 70) or Canadian Electrical Code (CSA C22.1).

USER MANUAL CMS441 Chief

INSTALLATION INSTRUCTIONS

Technical line drawings of two computer case compartments labeled CMS491 and CMS492, showing internal components and mounting points (no text or symbols beyond labels)

Ceiling Tile Storage Kits

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 representation of warranty, expressed or implied, regarding the information contained herein. Milestone assumes no responsibility for accuracy, completeness or sufficiency of the information contained in this document.

Chief® is a registered trademark of Milestone 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 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.

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).

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: 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: 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: 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. 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--

DIMENSIONS

CMS491

CMS491C

DIMENSIONS

CMS492

CMS492C

LEGEND

	Tighten Fastener
	Apretar elemento 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 fissaggio
	Bevestiging losdraaien
	Desserrez les fixations
	Phillips Screwdriver
	Destornillador Phillips
	Kreuzschlitzschraubendreher
	Chave de fendas Phillips
	Cacciavite a stella
	Kruiskopschroevendraaier
	Tournevis à pointe cruciforme
	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

TOOLS REQUIRED FOR INSTALLATION

PARTS INCLUDED

OPTIONAL PARTS PER CUSTOM CONFIGURATION (NOT INCLUDED)

PREPARING FOR INSTALLATION

Installation Requirements

The CMS491/492 has been designed to be mounted recessed into a suspended ceiling consisting of 2' × 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 recommended dimensions of projector relative to target (see installation instructions included with the projector).

Preparing Framework

① Remove one 2' x 2' tile from ceiling.
② Move/reconfigure existing wires or conduit if obstructing location.
③ Pre-install cable hanger system.

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 15° outside of support holes in kit assembly. Mark locations with a pencil.

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.

② Tap anchor (K) into each hole to a depth of at least 1" (25mm) (See Figure 3).

WARNING: Failure to properly set anchor may result in failure of anchor and serious personal injury or damage to equipment!

③ Using claw portion of hammer, set each anchor (K) by pulling it out of hole approximately 1/4" (6.4mm). (See Figure 3)

④ Insert portion of manufactured loop on cable (N) through hole in anchor (K) (See Figure 3). Insert end of cable (N) through loop. Repeat for 3 remaining support locations.

Wood Ceiling Structure

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.

② Fully thread eye lag (J) into each hole (See Figure 4).
③ Route end of cable (N) through eye lag (J) and then through cable loop (See Figure 4). Repeat for 3 remaining support locations.

Steel Truss Ceiling Structure

① Route end of cable (N) over truss at marked cable anchor support location and then through cable loop. (See Figure 5) Repeat for 3 remaining support locations.

Installing Electrical Box and Outlets

Determine desired location for installing electrical outlets within box.

Box Sidewall Electrical Install Option

① Remove two-piece electrical plate from box sidewall. 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.

CAUTION: Injury may occur on sharp edges. Carefully discard the removable tabs.

② Insert tab on bottom edge of electrical plate into opening on side wall of box. Rotate to flatten against box, and affix plate to box by re-using screws removed in Step 1.

Hand installing or adjusting a metal bracket component, showing internal circular holes and mounting holes (no text or symbols)

Projector Mount Plate Electrical Install Option

① Remove attached electrical plate from underside of projector mount plate. Save nuts for reinstall.
○ Remove break away panel from projector mount plate.2

Line drawing of a hand using a tool to cut or mark a piece on a flat surface, labeled 'Figure 9' (no text or symbols on the diagram itself)

CAUTION: Avoid sharp edges.

③ Attach a pair of outlets to an electrical box, then attach accompanying one-piece electrical plate to outlet box configuration.

Technical line drawing of a wall-mounted electrical socket assembly (no text or symbols)

④ If outlet box configuration is attached to wiring/conduit 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.

Technical line drawing of a mechanical assembly with a coiled spring and mounting base (no text or symbols)

⑤ Attach complete outlet box configuration to projector mount plate as shown below in figure 12. Secure by re-attaching nuts removed in Step 1.

Illustration of a hand using a tool to cut a die into a tray, labeled 'Figure 12' (no text on diagram itself)

Cleat adjustment for various tile heights

① Loosen screws along side cleat, adjust and retighten as needed to accommodate for tile height.

NOTE: Remove the cleat entirely to allow the enclosure to be mounted closer to the tile grid frame.

Placing CMS491/492 into Ceiling Structure

① Carefully insert box through opening. Note angled back edges design which allow box to fit through 2' x 2' opening.

② Rotate and drop box to gently rest into place onto drop ceiling framework.

Technical line drawing of a mechanical assembly with no visible text or symbols

Installing Cable to Box Frame

① Remove adjacent ceiling tiles as needed to access cable attachment locations.

Illustration of a person installing or adjusting a ceiling-mounted device (no text or symbols visible)

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.

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).
④ Adjust cable tension until CMS491/492 frame is supported entirely and evenly by all four support cables, but not so tight as to distort ceiling tile framework.

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).

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.

① Attach component to shelf prior to install. Component may be attached either on top of shelf or below shelf. Attach components per component manufacturer recommended method(s).

② Attach one #10-24 thumb nut (l) to each threaded post.
③ Position shelf (with component attached) into box and hook four corner slots onto the posts of the shelf supports.

Illustration of hands installing a window frame on a metal panel, with an inset showing a mechanical clamp (no text or symbols)

④ Hand tighten nuts (I) to secure shelf in place.

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.

② Finish frame assembly by opening four latches in door panel dropping panel down. Slide tile (cut to size) into location.

Line drawing of a device with an open lid and internal components, labeled as Figure 22 (no text or symbols on the diagram itself)

③ Push panel assembly back into place and rotate latches to lock position.

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).

Illustration of hands installing or adjusting a device panel inside a rack (no text or symbols visible)

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.

Technical line drawing of a mechanical assembly with a rotating component (no text or symbols)

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.

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.

CHIEF®

Our Mounts. Your Vision.

Chief, a products division of Milestone AV Technologies

8800-002680 Rev00

©2014 Milestone AV Technologies

www.chiefmfg.com

11/14

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P 800.582.6480 / 952.225.6000

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P [phone]

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