Nexus 21 L-90 User manual

TV Lift System Model L-90
HTG Installation Instructions
Estimated Assembly time: 3 hours
Estimated Installation time: 1.5 hours
Nexus 21 Technical Support: 866.500.5438

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NOTE: You will find items 6 and 7 inside the “Nexus 21 Standard TV Mount” package.
Contact: [email protected]
Toll Free: [phone]
Phone: [phone]
Fax: [phone]
Revision: 6/29/16
Below is a parts list describing all of the items included in the Model L-90 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 at the above numbers. Please note that the approximate dimensions are included in many descriptions
for easier identification. You may also wish to refer to the Parts View diagram at the end of this document.
Parts List
1. Lift Column (5)2. Base Mount 3. Column Support Bracket (2)
(20 ½” x 2 ¾”) (27” x 3 ¼” x 6 ½”) (20 ¼” x 10 ¼” x 3 ¼”)
4. Screen Support 5. Control Box (2) 6. Screen Back Plate
(17 ½” x 11 ½” x 3 5/8”)(10 ½” x 3 ¾” x 1 ½”) (36” x 7 ¾”)
7. Vertical Mounting Bar (2) 8. Upper HTG Bracket 9. Lower HTG Bracket
(25 ½” x 1 5/8” x 1 5/8”) (19 7/8” x 2 3/8 x ¾”) (20”x 2 ¾” x ¾”)

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Parts List, continued
12. Cable Chain (2) 13. Upper Column Brace (2) 14. Lower Column Brace (2)
(27 7/8” x 1 ¾” x 1 ½”) (5 ¼” x 6”x 1”) (27 7/8” x 1 ¾” x 1 ½”)
15. Upper Chain Bracket 16. Lower Chain Bracket
(3 7/8” x 3 1/8” x 2 1/8”) (2 ¾” x 3 1/8” x 2 1/8”)
Cables –shown in wiring diagram on page 13 & 17
Motor Cables (5) –White, six-pin cable that plugs into the Lift Columns and Motor Cable slots on the Control
Boxes. There are three 2.5 Meter long and two 4.5 Meter cables.
Power Cable (2) –Plugs into electrical power and Control Box. Three feet long.
RF Cable –Plugs into RF Receiver and Control Box. One foot long.
Jumper Cable –Connects both Control Boxes.
TIP: You will need to install a power strip (not included) in the bottom of the cabinet to plug in the power cords from the Control Box, TV and any
other components included in the cabinet.
Hardware
17. Two (2) -- Screen Locks (Located in box with Part #6 & 7)
18. Four (4) -- 3/8”-16 x ¾” Button Head Machine Screw
19. Sixteen (16) -- #10 x ¾” Truss Head Wood Screw
20. Four (4) -- #10 x 1 ¾” Flat Head Wood Screw
21. Two (2) -- #6 x ¾” Round Head Wood Screw (Included in bag with RF handset)
22. Four (4) –5mm x 12mm Flat Head Machine Screws
23. Four (4) -- #8 x ¾” Flat Head Wood Screw (For IR Receiver and/or Backup Switch)
24. Twenty-two (22) -- 6mm x 20mm Flat Head Machine Screw
25. Fourteen (14) -- 6mm x 12mm Flat Head Machine Screw
26. Twenty (20) –6mm x 16mm Button Head Machine Screw
27.Four (4) –1 1/8” x 5/8” Square Multi-Mount Washers
28.Three (3) -- Allen Wrenches –3mm, 4mm and 7/32”
29.Four (4) -- Cable Zip Ties
30.Four (4) -- Wire Clips
31.Two (2) -- 6mm Hex Nuts
32. One (1) –Velcro Strip (4ft)

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SAFETY INFORMATION
SEVERE PERSONAL INJURY AND PROPERTY DAMAGE CAN RESULT FROM IMPROPER INSTALLATION
OR ASSEMBLY. READ THE FOLLOWING WARNINGS BEFORE BEGINNING:
WARNINGS:
1. Do not use this product for any application other than those specified by Nexus 21.
2. Do not exceed the weight capacity. This can result in serious personal injury or damage to the equipment. It is the installer’s
responsibility to ensure that the total combined weight of all attached components does not exceed that of the maximum
figure stated.
3. Follow all technical specifications and instructions during the installation.
4. Only use attachments/accessories specified by the manufacturer.
5. Close supervision is necessary when this system is being used by, or near, children, or disabled persons.
6. It is the responsibility of the installer to warn all potential users of the dangers of interfering with the mechanism during
operation.
7. Read all technical instructions fully before installation and use. It is the installer’s responsibility to ensure that all
documentation is passed on the users and read fully before operation.
8. Failure to provide adequate structural strengthening, prior to installation can result in serious personal injury or damage to
the equipment. It is the installer’s responsibility to ensure the structure to which the Lift System is affixed can support four
times the weight of the system.
9. Risk of electric shock. Do not attempt to open the Control Box.
10. To reduce risk of fire or electric shock, do not expose parts to rain or other liquids.
11. Protect the power cord from being walked on or pinched.
12. Keep all documentation.
13. Heed all warnings.
14. Clean only with a dry cloth.
15. Refer all service questions to Nexus 21 if the system does not operate normally.
Nexus 21 disclaims any liability for modifications, improper installations, or installations over the specified weight range. Nexus 21 will not be liable for
any damages arising out of the use of, or inability to use, Nexus 21 products. Nexus 21 bears no responsibility for incidental or consequential damages.
This includes, but is not limited to, any labor charges for the servicing of Nexus 21 products performed by anyone other than Nexus 21.
Nexus 21 intends to make this and all documentation as accurate as possible. However, Nexus 21 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 prior notice or obligation of any kind. Nexus 21 makes no representation of
warranty, expressed or implied, regarding the information contained herein. Nexus 21 assumes no responsibility for accuracy, completeness or
sufficiency of the information contained in this document.
LID HAZARD
TV HAZARD
CAUTION: Avoid contact with the TV and Lift
System during operation. Use with caution.
CAUTION: The lid of your enclosure must be
installed as described in the instructions, using the
HTG Bracket. Installing the enclosure lid in any
other fashion will create hazardous pinch points
that can cause serious personal injury.
CAUTION: FOR UNDER FLOOR
INSTALLATIONS ONLY: Do not, under any
circumstances, allow any person or pet to
position themselves underneath the TV at any
time.
UNDER FLOOR HAZARD

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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
type 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. The method of installation for each type of remote control is slightly different, so you should now identify which
type of remote you have by reading below, and then follow the instructions for that type of remote.
NOTE: If you will be using the Lift with a home control system (like the ones made by companies such as Crestron or
Control 4) the most common form of control is to WIRE IT DIRECTLY to the relays of your home control system. This
direct-wire method is called Integration by Contact Closure, and is accomplished by using the Backup Control Switch
(Height Limit Switch) that was supplied with the Lift System to connect the Lift to the control unit from your home control
system.
Before You Begin the Installation: Identify Your Control Type
IR (Infrared) –This control option allows you to utilize a 3rd party universal style remote control to raise and lower the
TV Lift. Your universal remote will “learn” the IR codes from the provided IR Handset, which will enable you to control the
lift. The universal remote will then communicate with the “eye” located on the IR Receiver via your 3rd party emitter (or
flasher). Instructions for mounting the IR controls are on page 12. Instructions for setting the TV Lift’s travel limit are on
Supplemental Page B.
NOTE: If you are NOT planning on using a 3rd party Universal Remote, switch to the RF setup. (There is no charge for swapping)
These are the parts included with IR controls:
Contact Closure Hardware IR Receiver/Height Limit Buttons IR Handset
RF (Radio Frequency) - This system utilizes a wireless remote control handset that sends a radio signal to the RF
Receiver. The radio signal can go through cabinet walls and does not require line-of-sight. Instructions for mounting the
RF controls are on page 13. Instructions for setting the Lift System travel limit are on Supplemental Page B.
TIP: Planning to integrate the TV Lift with your UNIVERSAL REMOTE CONTROL? The RF version of the Nexus 21 controls won’t do it.
Switch to IR.
These are the parts included with RF controls:
Height Limit Buttons RF Receiver RF Handset
Integration by Contact Closure –To direct-wire the TV Lift controls to a home control system (Crestron, Control 4,
AMX, etc.) you will use the Back-up Control Switch (Height Limit Switch). You won’t use any Nexus 21 receiver or handset
for this type of control because you will use the handset or control pad that comes with your home control system.
Instructions for setting up the System using Contact Closure are on “Supplemental Page C”.

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Assembly and Mounting Instructions –You Are Ready to Start
Step 1: Inventory the Parts List. Carefully inspect all items, making sure you have everything shown in the
Parts List.
Step 2: Verify the “Pigtail” cables are properly
seated on the top of the Lift Columns. Take the Lift
Columns (Part #1) and find the end with the short
black cable (this cable is called the “pigtail”). This end
will become the top of the Lift Column. Before you
begin assembly of the system, make sure this cable is
seated properly on all 5 Lift Columns. The rubber
gasket attached to the cable should be seated snugly
around the steel edge of the inner profile. IF THE
CABLE IS NOT PROPERLY SEATED IT MAY BE DAMAGED
DURING ASSEMBLY CAUSING LOSS OF POWER TO THE
LIFT COLUMN. As you assemble the lift the pigtails
should be oriented to face the back of the cabinet.
Step 3: Attach (3) Lift Column A’s to the Base Mount.
Mount one Lift Column A to the middle of the Base
Mount. Start by turning the Lift Column A over so the
top (the side with the Pigtail Cable) is on the floor.
Align the four countersunk holes in the center of the
Base Mount with the four threaded holes on the
bottom of the Lift Column A. Using the provided small
Hex Key and four (4) 6mm x 20mm Flat Head Machine
Screws, attach the Lift Column to the Base Mount.
Make sure the “Pigtails” are facing the rear of the
Base Mount (the side with bend).
NOTE: Do not tip or knock the Lift Columns over during assembly. This may damage and affect performance.

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Step 3 Continued:
Step 4a: Flip the Lift Column A’s over so the base
mount is on the ground.
Step 4b: Slide the (2) Lower Column Braces (Part #13) over the two outer Lift Column A’s.Make sure to
loosen the rubber bumpers all the way, to ensure ease of install.
NOTE: Make sure not to damage the Pigtails while sliding the Lower Column Braces onto the Lift Column A’s.

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Step 5a: Slide the (2) Upper Column Braces onto the (2) Lift Column B’s.Route the pigtails through the Upper
Column Braces and slide the brackets down the columns. Align the Upper Column Brace holes with the two
counter sunk holes on the back side of the Column Support Bracket. Using (4) 6mm x 12mm FHMS (two screws
per Lift Column), fasten the Upper Column Braces to the Column Support Brackets.
Step 5b: Fasten the bottom of each Lift Column B’s to each Column Support Bracket. Flip Lift Column Band
the Column Support Bracket over and align the four counter sunk holes with the four threaded holes on the
bottom of Lift Column B. Using (8) 6mm x 20mm FHMS Screw (4 screws per Lift Column) attach the bottom
of both Lift Column B’s to the Column Support Brackets.

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Step 5c: Apply the provided Wire Clips to the inside walls of the Column Support Brackets. Using (4) Wire
Clips (two per Column Support Bracket) peel the white paper and stick two Wire Clips on the inside walls of the
Column Support Brackets, half way down the bracket. These clips will be used for wire management.
Completed Upper Lift Assemblies Upper & Lower Lift Assemblies
Step 6a: Place the Upper Lift Assemblies onto the Lower Lift Assembly. The Upper Lift Assemblies will share
the mounting holes on top of the middle Lift Column Aof the Lower Lift Assembly. Position one Upper Lift
Assembly so it is resting on top of the middle and one of the outer Lift Column B’s of the Lower Assembly as
seen in the photos below.

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Step 6b: Attach both Upper Lift Assemblies to the outer two Lift Column A’s, of the Lower Lift Assembly:
Using (8) 6mm x 16mm BHMS Screws (4 screws per outer Lift Column A’s) fasten each Upper Lift Assembly to
the outer most Lift Columns A’s. NOTE: Do not fasten the center Lift Column A to the Upper Lift Assemblies, as
this will be completed in Step 7.
Step 7: Attach the Lower Chain Bracket (Part #16) and Upper Lift Assemblies to the middle Lift Column A.
Align the 4 holes on the Lower Chain Bracket and the 4 holes (2 from each Upper Lift Assembly) of the Upper
Lift Assemblies with the 4 threaded holes on the top of the middle Lift Column Aand attach using (4) 6mm x
16mm BHMS Screws. NOTE: Make sure to feed the Lift Column A “Pigtail” through the Lower Chain Bracket as
seen down below.

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Step 7 Continued:
Step 8: Temporally connect both upper Lift Column B’sto the Control Box (Part #8). Connect the two 4.5
meter Motor Cables to the pigtails of the two upper Lift Column B’s and connect the Control Box and IR or RF
Controls (depending on which controls you ordered) as shown in the wiring diagrams on pages 13 and 14.
NOTE: Make sure to plug the Motor Cables into ports 1 and 2 on the Control Box.
Step 9: Fully extend the upper Lift Columns. After
connecting the controls you must activate the two upper
Lift Columns by following the “Initialization” procedure:
1. Make sure the Lift Columns are in the fully retracted
position.
2. Using the wired Back Up Switch, press and hold the
down button (Triangle button without the raised dot)
for 5 seconds.
3. You should witness a slight up and down “jog”
movement from the lift columns. If you do not see
this movement, release the down button and repeat
step 2. Once you witness this “jog” movement, the Lift
Columns are synced and ready for use. Fully extend
the Lift Columns at this time.

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Step 10a: Attach the Screen Support (Part #4) to
the upper right Lift Column. Using (4) 6mm x 16mm
BHMS Screws fasten the Screen Support to the right
upper Lift Column. Do not attach the left upper Lift
Column, as this will be performed in Step 14b.
Step 10b: Fasten the Upper Chain Bracket (Part #15)
to the Screen Support (Part #4). Align the four holes
on the Upper Chain Bracket with the four holes on the
Screen Support and the four threaded holes on the top
of the Lift Column. Using (4) 6mm x 16mm BHMS Screws
fasten the Upper Chain Bracket and Screen Support to
the top of the left upper Lift Column.
NOTE: Make sure to feed the “Pigtail” of the Lift Column
through the Upper Chain Bracket.

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Step 11: Temporarily connect the lower three Lift Columns to Control Box A. Using (3) 2.5 Meter Motor
Cables, connect the three lower Lift Columns to Control Box A. Refer to the wiring diagram down below for IR
Controls or the following page for RF Controls.

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Step 12: Fully extend the lower Lift Columns. After connecting the controls you must activate the three lower
Lift Columns by following the “Initialization” procedure:
1. Make sure the Lift Columns are in the fully retracted position.
2. Using the wired Back Up Switch, press and hold the down button (Triangle button without the raised
dot) for 5 seconds.
3. You should witness a slight up and down “jog” movement from the lift columns. If you do not see this
movement, release the down button and repeat step 2. Once you witness this “jog” movement, the
Lift Columns are synced and ready for use. Fully extend the Lift Columns at this time.
Step 13: Attach the upper and lower Cable Chains
to the Lower Cable Chain Bracket. Using (2) 6mm x
20mm FHMS Screws and (2) 6mm Nuts attached both
Cable Chains to the Lower Cable Chain Bracket.

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Step 14: Attach the upper Cable Chain to the Upper Cable Chain Bracket. Lower the upper Lift Columns, so
the Upper Cable Chain Bracket is accessible. Using (2) 5mm x 12mm FHMS Screws fasten the upper Cable Chain
to the Upper Cable Chain Bracket. The Cable Chain will bend into a U-Shape.
Step 15: Route the upper two 4.5 Meter Motor Cables through the upper Cable Chain: Extend the upper two
Lift Columns, as this will aid in routing the Motor Cables. Disconnect the two upper Motor Cables from the
Control Box and route each cable down through the Cable Chain.

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Step 16 Continued:
NOTE: Place a Zip Tie around the two upper Motor Cables, as this will aid in identifying them later.
Step 17: Connect the Lower Cable Chain to the Lower
Cable Chain Bracket. Using (2) 5mm x 12mm FHMS
Screws attach the Lower Cable Chain to the Lower Cable
Chain Bracket. Once connected continue routing the
upper Motor Cables through the lower Cable Chain.

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Step 18a: Route the lower right 2.5 Meter Motor Cable through the lower Cable Chain. Route the Motor
Cable through the hole on the Column Support Bracket. Next, slide the Motor Cable through the Wire Clips on
the inside walls of the Column Support Bracket (previously install in step 5). Then route the Motor Cable
through the second hole on the Column Support Bracket. Last, route the Motor Cable through the lower Cable
Chain.
Step 18b: Route the lower center 2.5 Meter Motor
Cable through the lower Cable Chain.

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Step 18c: Route the lower left 2.5 Meter Motor Cable
through the lower Cable Chain.Route the Motor Cable
through the hole on the Column Support Bracket. Next,
slide the Motor Cable through the Wire Clips on the
inside walls of the Column Support Bracket (previously
install in step 5). Then route the Motor Cable through
the second hole on the Column Support Bracket. Last,
route the Motor Cable through the lower Cable Chain.
NOTE: Place a Zip Tie around the lower three 2.5 Meter Motor Cables and a Zip Tie around the upper two 4.5
Meter Motor Cables. This will aid in identifying which Motor Cables go to which Lift Columns. It is critical to not
mix up the Motor Cables and accidently plug the upper Lift Columns into the same Control Box as the lower Lift
Columns.

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Step 19: Attach the Lower HTG Bracket the rear of
the left Column Support Bracket. Using (2-5) 6mm x
12mm FHMS Screws fasten the Lower HTG Bracket
to the rear of the left Column Support Bracket.
Step 20a: Attach the Upper HTG Bracket to the Lower HTG Bracket. Slide the Upper HTG Bracket down into
the Lower HTG Bracket and position the bracket so the top of the bracket is flush to ½” from the bottom side
of the lid material. Using (2-5) 6mm x 12mm FHMS Screws fasten the Upper HTG Bracket to the Lower HTG
Bracket.