TV Lift System Model L-75i Installation Instructions
Contact: Support@Nexus21.com Toll Free: (866) 500-5438 Phone: (480) 951-6885 Fax: (480) 951-6879 Revised: 03/02/17 Below is a parts list describing all of the items included with the Model L-75i Lift System. Before beginning assembly and installation, please make sure that you have all items included on the list. If any parts are missing or damaged, please contact Nexus 21. Our contact information is shown at the top of this page.
Parts List, continued Control Box Lid Support Brackets (2) Cable Tracks (2) Vertical Mounting Bars (2) (10 ½” x 3 ¾” x 1 ½”) (14” x 2 ¾”) (Short – Upper, Long – Lower) (7 ½” x 30”) Top Beam Support Assorted Hardware Pack (22” x 5 5/8”) Cables & Other Parts o o o o o o Motor Cables (3) – Black cable with white, six-pin plugs. Use these cables to connect the Lift Columns to the Control Box (using slots #1, #2, and #3 on the Control Box).
SAFETY INFORMATION SEVERE PERSONAL INJURY AND PROPERTY DAMAGE CAN RESULT FROM IMPROPER INSTALLATION OR ASSEMBLY. READ THE FOLLOWING WARNINGS BEFORE BEGINNING: TV HAZARD CAUTION: Avoid contact with the TV and Lift System during operation. Use with caution. LID HAZARD CAUTION: The lid of your enclosure must be installed as described in the instructions, using the Steel Threaded Tapered Pins.
Types of Controls for Nexus 21 Lift Systems All Nexus 21 Lift Systems come standard with a wireless remote control and receiver. We offer a choice of two different types of remotes: IR and RF (both of which are explained in detail below). Our standard control type is RF, so unless you specifically requested the IR version when you made your purchase, you probably received the RF controls with this Lift System.
Assembly and Mounting Instructions – DETAILED STEPS Preparing the Enclosure Box BEFORE BEGINNING, PLEASE READ THE SAFETY NOTICE ON THE FIRST PAGE OF THIS DOCUMENT The Enclosure Box for the TV and Lift System should be constructed of materials no less than ¾” thick. We recommend a high-grade plywood or combi-core material. The back and top of the enclosure are the parts that must be able to support the weight of the lift and TV, so MDF or particle board materials are not suitable for use in this project.
Table of Contents This Lift Model consists of three major systems, the Upper Actuation System, the Center Actuation System and the TV Mounting System. This instruction manual will cover how to build, install and wire the Lift.
Assembling & Installing the Upper Actuation System For these steps, you will need the following parts: (2) Bayonet Sleeves (2) Lift Columns (Labeled A & B) Rear Support Bracket Top Beam Support (1) Cable Management Track (6) 6mm x 12mm BHMS (8) 6 x 40mm FHMS Screws (2) 5mm x 12mm FHMS (8) 10 x ¾” THWS Screws Step 1: Attach the Upper Cable Track Bracket to the Rear Support Bracket using (2) 6 x 12 mm BHMS screws.
Step 4: Slide the tabs of the Rear Support Assembly down into the welded metal sleeve on each Lift Column. Step 5: Using a rubber mallet, tap each of the Bayonet Sleeves into the welded metal sleeves of each Lift Column until they are flush with the top of the metal sleeve on the Lift Columns. Step 6: Center the Top Beam Support on the top panel on the interior of the enclosure.
Step 7: Using a 7/32” Drill Bit, drill out all (8) mounting holes for the Top Beam Support. Step 8: Now place the Top Beam Support on the top panel on the exterior of the enclosure, aligning it with the (8) drilled holes.
Step 10: Level each Lift Column horizontally within the enclosure, then fasten the Rear Support Bracket to the back panel of the enclosure using (8) 10 x ¾” THWS Screws. Step 11: Attach the Upper Cable Management Track to the Center Cable Track Bracket on the Rear Support Assembly using (2) 5mm x 12mm FHMS. Ensure the Upper Cable Management Track bends initially then hangs. The Upper Lift Columns are now successfully installed.
Assembling the Center Actuation System For these steps, you will need the following parts: Center Riser Bracket (1) Lift Column (Labeled C) Center Cable Track Bracket Bayonet Bracket (8) 6mm x 20mm FHMS (4) 5 x 12mm FHMS Screws Small Hex Key and 5mm Hex Key Rubber Mallet (Not Included) Step 12: Slide the Bayonet Bracket into the welded metal sleeves of the Center Lift Column C.
Installing the Center Actuation System For these steps, you will need the following parts: Center Actuation System (8) 6mm x 20mm FHMS (4) 5 x 12mm FHMS Screws (1) Cable Management Track Small Hex Key and 5mm Hex Key Step 15: Attach the Center Actuation System to Upper Actuation System using (8) 6 x 20mm FHMS Screws. After the Center Actuation System has been attached fasten the screws for the Top Beam Support.
Calibrating and Synchronizing the Actuation Systems For these steps, you will need the following parts: (2) 2000mm Motor Cables (1) 2500mm Motor Cable Control Box Power Cord Wired Backup Switch (2) #10 x 1 ¾” FHWS Screw In order to calibrate and synchronize the systems together, you will need to mount your Control Box to the enclosure. We recommend mounting the Control Box on the left side of the enclosure to make cable management easier.
Step 20: Connect the Wired Backup Switch to either port A1 or A2 on the Control Box. Note: You may use the bag labeled Extension Pack to increase the length of the Wired Backup Switch for easier use or to remotely mount it. Step 21: Press and hold the button without the raised dot on the Wired Backup Switch for 10 seconds. You should see a slight movement from the lift system but do not release the button until 10 seconds have elapsed.
Managing the Motor Cables Now that the lift has been calibrated and extended it will be easier to fish the Motor Cables through their respective Cable Management Tracks. Step 22: Before doing this however, ensure the Lift System is level relative to the enclosure by placing a level on the top of the Center Riser Bracket. Note: If your lift is not level, you may need to check the level of the Upper Columns again.
Step 26: Take the Motor Cable connected to port 2 and connect it to the Upper Left Lift Column’s pigtail. Step 27: Take the Motor Cable connected to port 3, fish it through the Lower Cable Management Track, and connect it to the Center Lift Column’s pigtail. You have successfully connected and managed the Lift Systems cabling. Re-Calibrate & Re-synchronizing the Lift System After the Motor Cables are routed and re-connected to each column you will need to reinitialize them again.
Assembling the TV Support System For these steps, you will need the following parts: (2) Top Support Brackets (2) Lift Columns (Labeled A & B) Screen Support Screen Back Plate (6) 6mm x 12mm BHMS (4) 3/8”-16 ¾” BHMS 38 Step 29: Attach both Top Support Brackets to the Screen Support using (6) 6 x 12mm BHMS Screws. As long as the Top Support Brackets are in-line, you can use any set of holes. Adjustments will be covered in a later section.
Installing the TV Support System For these steps, you will need the following parts: TV Support System (4) 6 x 20mm BHMS Step 31: Attach the TV Support System to the Center Lift Column using (4) 6 x 20mm BHMS. Once again making sure the pigtail for the Center Lift Column is facing the back panel of the enclosure. You have successfully installed the TV Support System.
Preparing the TV & Adjustments For these steps, you will need the following parts: Lower Cable Track Bracket Vertical Mounting Bars Front Cover Lid Plate (5) 6 x 12mm BHMS Screws (4) 6 x 12mm FHMS Screws TV Mounting Hardware Before you mount the TV to the Lift System you will need to know more about adjustability of the lift.
B Irregular/Obstructed Back Diagram “B” installation procedure: 1) Place the flat screen TV face down on a protected surface. 2) Position the Vertical Mounting Bars equidistant from the bottom and top of the TV, with the slots facing toward the top of the TV. 3) Using the four (4) spacers needed, (4) Square Multi-Mount washers and the TV mounting screws selected from the bag, attach and tighten the hardware.
Step 45: Attach the Lower Cable Track Bracket to the Lower Cable Track using (2) 5 x 12mm FHMS. Step 37: Attach the Lower Cable Track Bracket to the Right Top Support Bracket using (3) 6 x 12mm BHMS Screws. Note: Ensure the Lower Cable Management Track does not have any slack, but is not so tight that it deforms the radial bend at the top of it. Step 38: Attach the Front Cover to the Center Riser Bracket using (2) 6 x 12mm BHMS Screws.
Installing the Lid & Lid Stabilization Assembly For these steps, you will need the following parts: (4) Shoulder Bolt (4) ½” Nylon Spacers (4)Lid Stabilization Springs (4) Brass Threaded Inserts Your Lid Important Info: You must have your TV mounted when installing your lid as the additional weight from the TV may cause the lid to shift throwing all measurements off.
Step 43: Mark and drill (4) ½” holes on your Lid Material: Hold your lid piece (your ceiling cut-out piece) up to the Lid Plate (which you have already installed on the Lift, and is now hanging out of the ceiling). The Lid Plate has 4 holes that are used to attach your lid piece. Mark the position of the holes on your lid piece. Drill four holes ½” deep using a 1/2” drill bit.
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Please follow this procedure if you would like to limit the distance that your TV Lift extends. To set your Travel Limit with IR Controls: If you want the lift system to always go to its full extension, do NOT use the Height Limit Insert. Simply leave it unplugged and the system will always travel to the full extension. To limit the travel, follow the procedure below: 1. Using the IR Receiver, run the lift system to the ideal height limit position and stop it there. 2.
Ports A1 & A2 are interchangeable To Power Outlet Height Limit Insert Note: Read page (26) prior to inserting.
Ports A1 & A2 are interchangeable To Power Outlet Height Limit Insert Note: Read page (26) prior to inserting.
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