LEGRAND CHIEF CMS491 Installation Instructions Manual

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. 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: 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 accord- ance 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. 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-- 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.

2 SPACES TOTAL AVAILABLE 1.38 34.9 DOOR DROP 1.13 28.6 TILE INSERTION SPACE 19.25 489.0 TILE WIDTH A 0-0.25 6.4 SIDE TRIM EXTENSION (MIN-MAX) DEPTH ADJUST ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. PASS THROUGH FOR DUAL GANG 3. OUTLET ATTACHED TO 1/2" CONDUIT 12.97 329.5 8.67 220.1 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 DETAIL A SCALE 1 : 2 23.67 601.1 MOUNTING WIDTH 1.91 48.4 TOP SHELF SPACE 2.25 57.2 BOTTOM SHELF SPACE 7.58 192.4 AVAILABLE STORAGE HEIGHT SECTION B-B 2.59 65.9 PIPE DROP CENTER 13.63 346.1 PIPE DROP TRAVEL 5.02 127.5 PIPE DROP MIN CENTER B B 1 REMOVABLE SHELF INCLUDED 2 SPACES TOTAL AVAILABLE ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. 1.38 34.9 DOOR DROP 19.25 489.0 TILE WIDTH 1.13 28.6 TILE INSERTION SPACE A 0.25 6.4 SIDE TRIM EXTENSION ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. PASS THROUGH FOR DUAL GANG 3. OUTLET ATTACHED TO 1/2" CONDUIT 8.67 220.1 12.97 329.5 0.88 22.2 TRADE CONDUIT SIZE 1/2" METRIC CONDUIT SIZE 16mm 1.73 44.0 TRADE CONDUIT SIZE 1-1/4" METRIC CONDUIT SIZE 35mm 1.38 34.9 TRADE CONDUIT SIZE 1" METRIC CONDUIT SIZE 27mm DETAIL A SCALE 1 : 2 23.67 601.1 MOUNTING WIDTH 1.91 48.4 TOP SHELF SPACE 2.25 57.2 BOTTOM SHELF SPACE 7.61 193.3 AVAILABLE STORAGE HEIGHT SECTION B-B

2 SPACES TOTAL AVAILABLE 0.25 6.4 TILE INSERTION SPACE 19.25 489.0 TILE WIDTH A 8.67 220.1 ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. PASS THROUGH FOR DUAL GANG 3. OUTLET ATTACHED TO 1/2" CONDUIT 24.97 634.3 23.69 601.7 MOUNTING LENGTH 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 DETAIL A SCALE 1 : 2 7.60 192.9 AVAILABLE STORAGE HEIGHT 1.91 48.4 TOP SHELF SPACE 2.25 57.2 BOTTOM SHELF SPACE 23.67 601.1 MOUNTING WIDTH SECTION B-B 2.69 68.3 PIPE DROP MIN CENTER 9.40 238.9 PIPE DROP TRAVEL 5.02 127.5 13.63 346.1 PIPE DROP TRAVEL B B 1 REMOVABLE SHELF INCLUDED 2 SPACES TOTAL AVAILABLE ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. 1.38 34.9 DOOR DROP 1.13 28.6 TILE INSERTION SPACE 19.25 489.0 TILE WIDTH 23.67 601.1 A 23.69 601.7 MOUNTING LENGTH ELECTRICAL INSTALL PLATE SPACE FOR A SINGLE GANG OUTLET 1. DUAL GANG OUTLET 2. PASS THROUGH FOR DUAL GANG 3. OUTLET ATTACHED TO 1/2" CONDUIT 24.97 634.3 8.67 220.1 0.88 22.2 TRADE CONDUIT SIZE 1/2" METRIC CONDUIT SIZE 16mm 1.73 44.0 TRADE CONDUIT SIZE 1-1/4" METRIC CONDUIT SIZE 35mm 1.38 34.9 TRADE CONDUIT SIZE 1" METRIC CONDUIT SIZE 27mm DETAIL A SCALE 1 : 2 7.60 192.9 AVAILABLE STORAGE HEIGHT 1.91 48.4 TOP SHELF SPACE 2.25 57.2 BOTTOM SHELF SPACE 23.67 601.1 MOUNTING WIDTH SECTION B-B Installation Instructions CMS491/492

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PARTS INCLUDED #2 Phillips 1/4” 5/32” optional OPTIONAL PARTS PER CUSTOM CONFIGURATION (NOT INCLUDED) 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 1 2 3 4 5 #2 Flathead NOTE: Some items may vary depending on specific model number. #10-24 x 1/4 Button Head Security Screw L Cable Lock (Wire Vice) E #10-24 x 1/4 Pan Head Machine Screw (2x) (4x) (4x) (4x) (4x) Chief CMS1RU Shelf Rack Adaptor (4x) D Install Box (CMS492 shown) A Component Shelf B Projector Mount Plate C #10-24 x 5/8 Pan Head Tapping Screw G (4x) #10-24 x 1” Pan Head Tapping Screw H .262 x 1 5/16 Eye Lag J 25 ft length Cable N Security Spinner F 1/4" x 2" Wire Anchor K 5/32” Security Key M (4x) #10-24 Thumb Nut I Installation Instructions CMS491/492 Projector Mount Plate Tile Side Trim P (4x) Hardware Bag #1 Hardware Bag #2

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. Installation Requirements 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). SUPPORT CABLE INSTALLATION Solid Concrete Ceiling Structure 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. 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! WARNING: Failure to properly set anchor may result in failure of anchor and serious personal injury or damage to equipment! 2 4 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. Tap anchor (K) into each hole to a depth of at least 1" (25mm) (See Figure 3). 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) through hole in anchor (K) (See Figure 3). Insert end of cable (N) through loop. Repeat for 3 remaining support locations. 1 Preparing Framework Remove one 2’ x 2’ tile from ceiling. 1 Move/reconfigure existing wires or conduit if obstructing location. 2 Pre-install cable hanger system. x 4 15º 15º 3 1/4" Figure 3 Solid Concrete Ceiling Structure 1 2 3 4 N K 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. Figure 1 Figure 2 Installation Instructions CMS491/492

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. 1 STEEL TRUSS Ceiling Structure N 1 WARNING: Anchors must be installed into wood with a minimum thickness of 1-1/2" (38.1 mm) or greater. CAUTION: Injury may occur on sharp edges. Carefully discard the removable tabs. Wood Ceiling Structure Drill 5/32" diameter x 2" deep hole at each marked cable anchor support location (See Figure 4). Remove debris from hole. 1 Fully thread eye lag (J) into each hole (See Figure 4). 2 Route end of cable (N) through eye lag (J) and then through cable loop (See Figure 4). Repeat for 3 remaining support locations. 3 5/32" J N 3 2 1 Figure 4 Figure 5 Installing Electrical Box and Outlets Box Sidewall Electrical Install Option Determine desired location for installing electrical outlets within box. Box sidewall install option Projector mount plate install option 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. 1 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. 2 Figure 6 Figure 7 Figure 8 Wood Ceiling Structure

accompanying one-piece electrical plate to outlet box configuration. 3 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. 4 Attach complete outlet box configuration to projector mount plate as shown below in figure 12. Secure by re-attaching nuts removed in Step 1. 5 Projector Mount Plate Electrical Install Option Remove break away panel from projector mount plate. 2 Remove attached electrical plate from underside of projector mount plate. Save nuts for reinstall. 1 Figure 9 Figure 10 Figure 12 Figure 11 Cleat adjustment for various tile heights Loosen screws along side cleat, adjust and retighten as needed to accommodate for tile height. 1 Figure 13 Placing CMS491/492 into Ceiling Structure Rotate and drop box to gently rest into place onto drop ceiling framework. 2 Carefully insert box through opening. Note angled back edges design which allow box to fit through 2’ x 2’ opening. 1 chamfered corners for easy clearance Figure 14 Figure 15 CAUTION: Avoid sharp edges. NOTE: Remove the cleat entirely to allow the enclosure to be mounted closer to the tile grid frame. Loosen and adjust Installation Instructions CMS491/492

component shelf at two different heights. The following instructions refer to installing the Listed accessories CMSUNV1 and CMSUNV2. 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. 2 3 4 5 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). Component Shown Below Component Shown Above 1 Position shelf (with component attached) into box and hook four corner slots onto the posts of the shelf supports. 3 Hand tighten nuts (I) to secure shelf in place. 4 Attach one #10-24 thumb nut (I) to each threaded post. 2 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. Figure 17 Figure 19 Figure 18 Ceiling Frame Figure 20 Remove adjacent ceiling tiles as needed to access cable attachment locations. 1 Installing Cable to Box Frame Figure 16 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 entirely and evenly by all four support cables, but not so tight as to distort ceiling tile framework. 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). (N) (L) 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.

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). 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). 1 Once into position, drop plate down onto mounting rails. 2 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. 3 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. Projector Mount Plate and Extension Column Installation OPTIONAL: Install the electrical outlets as outlined in the Installing Electrical Box and Outlets section of this instruction manual. Figure 23 Figure 24 Finish Install Site 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” 1 Finish frame assembly by opening four latches in door panel dropping panel down. Slide tile (cut to size) into location. 2 Push panel assembly back into place and rotate latches to lock position. 3 Figure 22 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 Installation Instructions CMS491/492 Figure 21

profile to match to the screen (make sure to adjust the resolution settings and aspect ratio of the projector to desired settings) 5 Secure extension column by one of the following methods (See Figure 25): 4 NOTE: Security spinner (F) is designed to spin, even when screw is tight. 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. 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). 6 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. 7 Figure 25 (D) B A (E) (F) Installation Instructions CMS491/492 1 2

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 8800-003096 Rev01 2019 Legrand | AV www.legrandav.com 08/19 Installation Instructions CMS491/492