Installation Manual

General Purpose
Fan
Incandescent
120 V~ Halogen
Low-Voltage
Fluorescent
Channel
Dimmer
Switch
Dual Incandescent Dimmer/Switch
MA-L3S25
Rated at 120 V~ 60 Hz 300 W Incandescent load and 2.5 A Switch load
English
Lutron Electronics Co., Inc.
7200 Suter Road
Coopersburg, PA 18036-1299, U.S.A.
Made and printed in U.S.A.
11/10 P/N 030-1409 Rev. A
030-1409
030-1409
Important Notes - Please read before installing.
1. Only use dimmer with permanently installed incandescent or 120 V~ halogen fixtures. To avoid overheating
and possible damage to other equipment, do not use to control receptacles, fluorescent lighting fixtures,
low-voltage lighting fixtures, motor-driven appliances, or transformer-supplied appliances.
2. Use switch to control any permanently installed lighting or fan load. Check power requirements for all attached
heating devices as they may exceed the power limits shown in the capacity chart.
3. Install in accordance with all national and local electrical codes.
4. DO NOT install compact fluorescent (Energy Saver) lamps in the dimmer circuit. These lamps may only be installed
in the switch circuit.
5. Dimmer and switch require separate wires in the wallbox for each load.
6. Do not use for loads operated from two or more locations (3-way or 4-way).
7. When no “grounding means” exist within the wallbox then the NEC
®
2008, Article 404.9 allows a control without a
grounding connection to be installed as a replacement, as long as a plastic, noncombustible wallplate is used. For
this type of installation, cap or remove the green ground wire on the control and use an appropriate wallplate such
as Claro® or Satin Colors® series wallplates by Lutron®.
8. For new installations, install a test switch before installing the control.
9. Protect control from dust and dirt when painting or spackling.
10. Unit will not operate with less than 40 W of load installed on dimmer.
11. It is normal for the control to feel warm to the touch during operation.
12. Clean control with a
soft damp cloth only
. Do not use any chemical cleaners.
13. Operate between 32 °F (0 °C) and 104 °F (40 °C)
14. Recommended wallbox depth is 2.5 in (64 mm) minimum.
Multigang Installation
When combining controls in a wallbox, remove all inner side
sections before wiring (see below). Use pliers to bend each
side section up and down until it breaks off. Repeat for each
side section to be removed. Reduction of control capacity is
also required. Refer to chart below for maximum capacity.
Do Not remove outside sections
Inside sections are
removed from each
control
Dimmer/Switch Capacity Chart
Break Side Sections
Side sections are
removed from both
sides of middle control
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 warran-
ty 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 INSTAL-
LATION. 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. Lutron, Claro, Satin Colors, and Maestro 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.
UL is a registered trademark of Underwriters Laboratories Inc.
© 2010 Lutron Electronics Co., Inc.
?
Technical Assistance
If you have questions concerning the installation or operation of this product, call the
Lutron
Technical Support Center. Please provide exact model number when calling.
U.S.A. and Canada (24 hrs/7days)
1.800.523.9466
Other countries (8am – 8pm ET)
+1.610.282.3800
Fax [phone]
http://www.lutron.com
ON
OFF
ON
OFF
ON
OFF
Installation
For installations involving more than one control in a wallbox, refer to
Multigang Installation before beginning.
Separate wires are required in the wallbox for each circuit.
1
Turning Power OFF.
• Turn power OFF at circuit breaker (or remove fuse).
2
Removing Wallplate and Switch.
• Remove the wallplate and switch mounting screws.
• Carefully remove switch from wall (do not remove wires).
3
Verifying Application.
• This control controls two loads independently. Independent wires must
be provided for each load.
5
Wiring the Control.
• Connect the tagged wire
removed from the feed side
of the switch to the black
screw terminal on the Control
labeled Live.
• Connect one of the remaining
wires controlling an incandes-
cent/halogen load to the top
brass terminal labeled
Dimmer.
• Connect the remaining wire
removed from the switch to
the remaining brass screw
terminal on the Control
labeled Switch.
• Use wire connectors to con-
nect the green ground wire
on the Control to the bare
copper or green ground wire
in the wallbox, and to cap
any unused wires. See wire
connector bag for installation
instructions.
Lutron Technical Support Center 1.800.523.9466 24 hrs / 7 days www.lutron.com
• Tag the wire that is connected
to the feed side of the switch
(the side with the breakoff fin).
• If connecting a fan, fluores-
cent, low-voltage or other
non-incandescent/halogen
load, note which switch and
corresponding screw terminal
controls it and mark this wire
to be installed on the switched
channel in step 5. Failure to do
so may damage the load and
control.
Identify Side with
Break-off fin
Tag
Brass
screws
Black
screw
Green
Wire
Tag
Ground
Wire
6
ON
OFF
ON
OFF
ON
OFF
7
Turning Power ON.
• Turn power ON at circuit breaker
(or replace fuse).
Operation
Light Level Tap Button
• Tap once when lights are off -
Lights brighten smoothly to preset intensity.
• Tap once when lights are on -
Lights dim smoothly to off.
• Tap twice quickly -
Lights brighten rapidly to full intensity.
• Press and hold when unit is on -
Activates delayed fade to off mode. As the tap
button is held, the LEDs will begin to flash. The
first flashing LED represents a 10 second fade to
OFF. Each additional flashing LED represents an
additional 10 seconds of delay before lights fade
OFF (up to 60 seconds delay).
Light Level LEDs
• Indicates approximate light
level.
LEDs may not change with each
press.
Press to increase light level
Press to decrease light level
Troubleshooting
Symptoms
Light does not work or no LEDs
turn on.
Top and bottom buttons control
wrong loads.
Dimmer and Switch behave errati-
cally.
Tap button does not work at
brightest level.
Possible Causes
• Light bulbs burned out.
• Breaker is off or tripped.
• Dimmed Channel not connected to load.
• Front Accessible Service Switch (FASS) on Control
is pulled out to the OFF position.
• Wires going to the two brass screws are reversed.
• Live wire is connected to the dimmer screw. Fix wiring
error to ensure FASS removes power to both loads.
• Load is less than 40 W.
FASS
TM
- Front Accessible
Service Switch
Important Note: To replace a bulb, remove power by
pulling the FASS switch out on the Dimmer/Switch. For any
procedure other than routine bulb replacement, power
must be disconnected at the main electrical panel.
Brass
Brass
Live
Black
Neutral
Tag
Ground
Light
120 V~
60 Hz
To learn about the Advanced Features of
Maestro
®
Dimmers including locked pre-
set and adjustable fade times, please visit:
www.lutron.com/maestro/advfeatures
or call the
Lutron Technical Support
Center
at 1.800.523.9466.
Dimmer
Switch
Important Wiring Information
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.
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.
OR
Switch Tap Button
• Tap once when unit is OFF -
Controlled load turns ON.
• Tap once when unit is ON -
Controlled load turns OFF.
LED - Glows brightly when the load
is ON or glows softly as a night light
when load is OFF.
The Switched Channel is UL ® listed for use with all magnetic fluorescent ballasts and with select electronic fluores-
cent ballasts.Please call the
Lutron
Technical Support Center at 1.800.523.9466 for an up to date listing.
Note: This control is rated for fan and lighting loads only.
Load
Incandescent
120 V~ Halogen
No Sides
Removed
300 W
1 Side
Removed
250 W
2 Sides
Removed
200 W
Light or Fan
Fixture(s)
For new
construction go
to step 5.
Trim or strip
wallbox wires to
the length indi-
cated by the
strip gauge on
the back of the
control.
Wire Connector:
Use to join one 14 AWG (1.5 mm
2
) or
12 AWG (2.5 mm
2
) ground wire with one
18 AWG (0.75 mm
2
) control ground wire.
Twist wire
connector
tight.
Mounting Control(s) to Wallbox.
• Form wires carefully into wallbox, mount and align control(s).
• Install the wallplate(s).
Note: Do not overtighten mounting
screws.
Snap on Claro
wallplate.
Start screws.
Align control and
tighten screws.
4
Disconnecting Switch Wires.
Important Note: Your wall switch may have two wires attached to the
same screw (see illustrations below for examples). Tape these two
wires together before disconnecting. When wiring, connect wires to
the Control the same way they were connected to the switch.
Screw Terminals:
Turn screws to loosen.
Push-in Terminals:
Insert screwdriver.
Pull wire out.
One wire in the push-
in terminal and one to
the screw.
One continuous wire
to the screw.
2.5 A
300 W
2.0 A
250 W
1.5 A
200 W
To verify the control is correctly wired, test to make sure that the dimmer and switch are working
properly on the correct load. If any unexpected behavior occurs, check the troubleshooting guide.
WARNING: Before proceeding, verify
that power to the switch is
OFF. Otherwise, death or
serious injury could result.