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030-1002
Dimmer Installation Instructions
Please Leave for Occupant
Electronic Low-Voltage Dimmer
VTELV-600M:
120 V~ 60 Hz 600 W
Companion Dimmer
VT-AD:
120 V~ 60 Hz 8.3 A 277 V~ 60 Hz 6 A
This Dimmer is used to control the primary side of electronic transformer-supplied low-voltage lighting, incandescent lamps, or a combination of the two.
Important Notes
Please read before installing.
1. To avoid overheating and possible damage to other equipment, do not use to control receptacles, fluorescent lighting fixtures, motor-operated or transformer-supplied appliances.
2. Some fixture manufacturers do not recommend dimming their solid-state transformers. To determine if a fixture can be dimmed, consult the fixture manufacturer.
3. Install in accordance with all national and local electrical codes.
4. The Electronic Low-Voltage Dimmer (Main Dimmer) requires a neutral wire for operation. If no neutral wire is present, contact a licensed electrician for installation.
5. A neutral wire is not necessary for the installation of the Companion Dimmer
(VT-AD).
6. The Main Dimmer must be wired on the load-side of a multi-location circuit.
7. When “no grounding means” exists within the wallbox, then the NEC
®
2008,
Article 404.9 allows a switch without a grounding connection to be installed as a replacement, as long as a plastic, noncombustible wallplate is used. For this type of installation, twist a wire connector onto the green ground wire of the
Dimmer or remove the green ground wire.
8. The Main Dimmer is not compatible with standard 3-way switches. Use only with a Companion Dimmer.
9. Companion Dimmers must be used in conjunction with a Main Dimmer in a
3-way/4-way application.
10. In any 3-way/4-way circuit, use only one Main Dimmer with up to four
Companion Dimmers.
11. Do not use where total load is greater than the rating indicated in the Derating
Chart below.
12. Operate between 32 °F (0 °C) and 104 °F (40 °C).
13. The Main Dimmer may feel warm to the touch during normal operation.
14. Recommended wallbox depth is 2.5 in (64 mm) minimum.
15. Maximum total wire length between all Vierti
® devices is 250 ft (76 m).
16. For new installations, install a test switch before installing the Dimmer or test with a breaker.
17. Do not paint the Main Dimmer or Companion Dimmer.
Multigang Installation
Vierti wallplates are available in one to six gang versions. When combining controls in a wallbox, the Main Dimmer must be derated; see the Derating Chart below.
Note: Companion Dimmers do not need to be derated.
Lutron Technical Support Center 1.800.523.9466 24 hrs / 7 days www.lutron.com
Preparing for Installation
1
Turn the Power OFF
• Turn the power OFF at the circuit breaker (or remove the fuse).
WARNING: Verify that power is
OFF before proceeding. Failure to turn power OFF could cause death or serious injury.
Remove Wallplate, Switch, and Wires from Switch
• Remove the wallplate and switch mounting screws.
• Carefully remove the switch from the wall.
• Examine and identify the wires.
• Disconnect wires from switch Only.
3 b
Check new installations for short or open circuits BEFORE installing the
Dimmer.
Proceed as follows:
1. Make certain that the power has been turned OFF at the circuit breaker or that the fuse has been removed.
2. Connect a standard switch as shown in the Test Switch Wiring Diagram below.
3. Turn the power ON at the circuit breaker box or replace the fuse.
4. Turn the switch ON.
If lights do not come on, there is a break in the wiring. If the breaker trips, there is a short in the wiring. If necessary, turn the power OFF at the circuit breaker box or remove the fuse, correct any wiring problems, and recheck the circuit.
5. After the problem has been corrected, remove the test switch before proceeding with the installation.
6. If a test switch is not available, use wire connectors to make appropriate connections to turn the lights on.
Test Switch Wiring Diagram
Check the Wiring
This Dimmer requires special wiring to control electronic low-voltage fixtures.
Before starting, make sure that the wires shown below are available in your wallbox. If these wires are not available in your wallbox, contact a licensed electrician to have them installed.
All wiring must comply with national and local electrical codes.
Required Wires for Main Dimmer
To electronic low-voltage load
Wire to load
(to brass on Main Dimmer)
Neutral (to silver on Main Dimmer)
Traveller 2 (or live if single
location) to black on Main Dimmer.
Traveller 1 (to blue on Main
Dimmer, if Companion Dimmer is used)
All ground wires must be properly connected to green wire on Dimmers.
From Companion
Dimmer Wallbox
Live
120 V~ 60 Hz
Neutral
Electronic
Low-Voltage Load
Prepare the Dimmer for Installation
• The Dimmer has a pre-installed Vierti wallplate. Remove the wallplate before proceeding with the installation.
• The Dimmer has a pre-installed front module containing LEDs. Before proceeding with the installation, grab the module and pull it straight out. Removing the Front Module will expose the mounting holes.
Do not remove outside sections.
Breaking side sections
Each control has inside section removed.
Middle control has two side sections removed.
Required Wires for First Line-Side Companion Dimmer (Multi-Location only)
To Next Control
Traveller 1 (to blue on
Companion Dimmer)
Traveller 2 (to brass on
Companion Dimmer)
Grasp the wallplate at top and pull forward to remove.
Derating Chart
Dimmer Type
VTELV-600M
No Sides
Removed
600 W
Maximum Load
1 Side
Removed
500 W
2 Sides
Removed
400 W
Live (to black on
Companion Dimmer)
From Distribution Panel
Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299 U.S.A.
Made and printed in U.S.A. 9/08 P/N 030-1002 Rev. A
Neutral wires are not connected to
Companion Dimmer
All ground wires must be properly connected to green wire on Dimmers.
Grasp the front module on each side and pull to remove.
Wire the Main Dimmer and Companion Dimmer(s)
Important Wiring Information
When making wire connections, follow the recommended strip lengths and combinations for the supplied wire connector.
Note: All wire connectors provided are suitable for copper wire only. For aluminum wire, consult an electrician.
Wire Connector:
Use to join 12 AWG (2.5 mm 2 ) or 14 AWG (1.5 mm 2 ) ground wire to 18 AWG (0.75 mm 2
Dimmer wire.
)
Trim or strip wallbox wires to the length indicated by the strip gauge on the back of the Dimmer.
Twist wire connector tight.
Push-In Terminals: Insert wires fully.
Note: Push-in terminals are for use with 14 AWG (1.5 mm 2 ) solid copper wire only. DO NOT use stranded or twisted wire.
or
Screw Terminals: Tighten securely.
Screw terminals are for use with
12 AWG (2.5 mm 2 ) or 14 AWG
(1.5 mm 2 ) solid copper wire only.
DO NOT use stranded or twisted wire.
• For installations involving more than one control in a wallbox, refer to Multigang
Installation before beginning.
5a - Single-Pole Wiring
Before beginning, make absolutely sure that the power is OFF!
Wiring the Main Dimmer (Only the Main Dimmer is used in this installation.)
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect the live supply wire (120 V~), disconnected from the removed switch, to this screw.
3. Brass screw: Connect the other wire (disconnected from the removed switch -
Dimmed Live) going to the black wire of the electronic low-voltage transformer, to this screw.
4. Blue screw: Tighten the blue screw. The blue screw is not used in a single- pole circuit.
5. Silver screw: Connect the neutral wire in the wallbox to this screw.
Main Dimmer Blue Screw
Brass Screw
Silver Screw
Black Screw
Live
Neutral
Green Wire
Single-Pole Wiring Diagram
Black
Silver
Dimmed Live
Brass
Blue
Green Wire
Electronic
Low-Voltage Load
Go to step 6.
5b - 3-Way Wiring (Two Locations)
Before beginning, make absolutely sure that the power is OFF!
Wiring the Companion Dimmer on the line-side.
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect the live wire (120 V~), disconnected from the removed switch, to this screw.
3. Brass screw: Connect wire (Traveller 2 - note wire color) to this screw.
4. Blue screw: Connect wire (Traveller 1 - note wire color) to this screw.
Wiring the Main Dimmer on the load-side.
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect wire (Traveller 2) coming from the brass screw of the Companion Dimmer to this screw.
3. Brass screw: Connect the other wire (disconnected from the removed switch - Dimmed Live) going to the black wire of the electronic lowvoltage transformer to this screw.
4. Blue screw: Connect wire (Traveller 1) coming from the blue screw of the Companion Dimmer to this screw.
5. Silver screw: Connect the neutral wire in the wallbox to this screw.
Live
Line-Side
Companion
Dimmer
Black
2
Tr aveller
Blue
Brass
Green Wire
Load-Side
Main
Dimmer
Black
Silver
Brass
Green Wire
Blue
Dimmed Live
Electronic
Low-Voltage Load
Traveller 1
Neutral
Go to step 6.
5c - 4-Way Wiring (Three to Five Locations)
Before beginning, make absolutely sure that the power is OFF!
Notes:
• Only one location can be a Main Dimmer. The other locations must be
Companion Dimmers with up to four Companion Dimmers in an installation.
• The Companion Dimmer does not have a silver screw (no neutral required).
Wiring the first Companion Dimmer on the line-side.
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect the live wire (120 V~) (disconnected from the removed switch) to this screw.
3. Brass screw: Connect wire (Traveller 2) from this screw to the black screw of the next (middle) Companion Dimmer (note wire color).
4. Blue screw: Connect wire (Traveller 1) from this screw to the blue screw of the next (middle) Companion Dimmer (note wire color).
Wiring the middle Companion Dimmer(s).
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect the wire coming from the brass screw of the previous line-side Companion Dimmer (see above) to this screw.
3. Brass screw: Connect a wire from this screw to the black screw of the next load-side Companion Dimmer or the Main Dimmer (note wire color).
4. Blue screw: Connect the wire coming from the blue screw of the first
Companion Dimmer to this screw. This wire will then continue to the blue screw of the Main Dimmer or next load-side Companion Dimmer.
Wiring the Main Dimmer.
1. Connect the green ground wire to the bare or green ground wire in the wallbox.
2. Black screw: Connect the wire coming from the brass screw of the middle
Companion Dimmer(s) to this screw.
3. Brass screw: Connect the other wire (disconnected from the removed switch -
Dimmed Live) going to the black wire of the electronic low-voltage transformer to this screw.
4. Blue screw: Connect the wire coming from the blue screws of the first and middle Companion Dimmer(s) to this screw.
5. Silver screw: Connect the neutral wire in the wallbox to this screw.
Live
Line-Side
Companion
Dimmer
Black
2
Tr aveller
Blue
Brass
Blue
Green Wire
Middle
Companion
Dimmer
Black
2
Tr aveller
Blue
Brass
Green Wire
Load-Side
Main
Dimmer
Black
Silver
Black
Blue
Brass
Green Wire
Dimmed Live
Electronic
Low-Voltage Load
Traveller 1 Traveller 1
Neutral
Go to step 6.
Mount the Dimmer or Companion Dimmer(s) to the Wallbox
• Form wires carefully into the wallbox, mount and align Dimmer (or
Companion Dimmer).
• Install the front module and the wallplate.
Note: Do not overtighten mounting screws.
Turn Power ON
Snap on wallplate.
Plug in front module.
• Turn the power ON at the circuit breaker (or replace the fuse).
Dimmer Operation
Turning the System On/Off
Turn the system on by pushing the Front Accessible Service Switch (FASS
TM
) up.
Pulling the FASS switch down removes power from the load.
Note: The FASS switch is not used during normal operation.
Troubleshooting
Symptom
Light does not turn on and no
LEDs light up.
Light turns on and Dimmer works, but Companion Dimmer does not work.
LEDs scroll up and down.
Dimmer appears to work (LEDs light up) but light does not turn on.
Dimmer works properly, then shuts off.
Possible Cause
• The FASS switch on the Dimmer or
Companion Dimmer(s) is pulled down to the off position.
• Breaker is OFF or tripped.
• Dimmer is miswired. Check wiring.
• Wire connected to the blue screw terminal on the Dimmer is not the same wire connected to the blue screw terminal on the Companion
Dimmer. Check wiring.
• Dimmer has encountered an error condition. Call Lutron Technical
Support.
• The Dimmer terminal wires connected to the black and brass screws are reversed. Switch the wires.
• Lamps burned out.
• Dimmer is overloaded or load type is wrong. Check the load.
System On FASS Switch System Off
Important Notice:
To replace lamps, power may be conveniently removed by pulling the FASS switch down on the Dimmer or any Companion Dimmer. For any procedure, other than routine lamp replacement, power must be turned OFF at the main electrical panel.
Dimmer Functions
Touch here for full light output
Background LEDs:
Glow dimly
Touch here for 50% light output
Touch here to toggle
On/Off
Light Level LEDs:
Shows current light level
Status LED:
On = Blue, white, or green
Off = Orange
Worldwide Technical and Sales Assistance
For questions concerning the installation or operation of these products, call the
Lutron Technical Support Center. Please provide the exact model number when calling.
1.800.523.9466 (U.S.A., Canada, and the Caribbean)
Other Countries call +1.610.282.3800
Fax +1.610.282.6311
Visit our web site at www.lutron.com
Touch and hold for delayed fade to off. As this region is held, an LED will begin to flash, and the lights will begin to fade off with a 30 second delay.
Advanced Programming Mode
The following Vierti Dimmer settings can be modified using the Advanced
Programming Mode:
High/Low End Trims
LED Brightness
Sound Off/On
Delayed Fade Wait Time
Off Fade Time
On Fade Time
Locked Preset
Consult Application Note #205 on how to use the Advanced Programming Mode.
Please visit www.lutron.com/vierti or call Lutron Technical Support.
Limited Warranty
(Valid only in U.S.A., Canada, Puerto Rico, and the Caribbean.)
Lutron will, at its option, repair or replace any unit that is defective in materials or manufacture within one year after purchase. For warranty service, return unit to place of purchase or mail to Lutron at 7200
Suter Rd., Coopersburg, PA 18036-1299, postage pre-paid.
THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS WARRANTIES, AND THE IMPLIED WARRANTY
OF MERCHANTABILITY IS LIMITED TO ONE YEAR FROM PURCHASE. THIS WARRANTY DOES NOT
COVER THE COST OF INSTALLATION, REMOVAL OR REINSTALLATION, OR DAMAGE RESULTING
FROM MISUSE, ABUSE, OR DAMAGE FROM IMPROPER WIRING OR INSTALLATION. THIS WARRANTY
DOES NOT COVER INCIDENTAL OR CONSEQUENTIAL DAMAGES. LUTRON’S LIABILITY ON ANY
CLAIM FOR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE MANUFACTURE, SALE,
INSTALLATION, DELIVERY, OR USE OF THE UNIT SHALL NEVER EXCEED THE PURCHASE PRICE OF
THE UNIT.
This warranty gives you specific legal rights, and you may have other rights, which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, or limitation on how long an implied warranty may last, so the above limitations may not apply to you.
This product is covered under one or more of the following U.S. patents: 5,017,837; 5038,081;
5,248,919; 5,510,679; 6,169,377; 7,190,125, D563,901, and corresponding foreign patents. U.S. and foreign patents pending. Lutron and Vierti are registered trademarks and FASS is a trademark of Lutron
Electronics Co., Inc. NEC is a registered trademark of National Fire Protection Association, Quincy,
Massachusetts.
© 2008 Lutron Electronics Co., Inc.
