Identifying your wiring application
(most common):
NOTE: If the wiring in the wall box does not resemble any of these
configurations, consult an electrician.
WARNINGS AND CAUTIONS:
• Use this device with copper or copper clad wire only.
• Use only one (1) dimmer in a 3 or 4-way circuit. The switch(es) will turn the light on at the brightness level selected
at the dimmer.
• When multiple bulbs are used with one dimmer DO NOT mix bulb types. All bulbs shall be either LED; CFL or
incandescent. Using the same make/model of each bulb will enhance performance.
LED / CFL / MAGNETIC LOW VOLTAGE / INCANDESCENT SLIDE DIMMER
Single Pole or 3-Way
Cat. No. DSM1Ø – LED/CFL 450W (3.75A), MLV 1000VA, Incandescent 1000W
120VAC, 60Hz
INSTALLATION INSTRUCTIONS
Tools needed to install your Dimmer
Step 3
Changing the color of your Dimmer
If a color change kit is provided with your device, proceed with the following step
if you need to change the color. Otherwise, proceed with the "Installing Dimmer
by itself or with other devices" section.
In incandescent multi-dimmer installations, the
reduction of the dimmer’s capacity is required. Refer
to the chart for maximum load per dimmer. No derating
is required for use in dimmable CFL or dimmable LED
multi-dimmer installations.
Installing Dimmer by itself or with other devices
Step 2
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFFONOFF
ONOFF
ONOFF
ONOFF
ONOFF
WARNING:
TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF
POWER at circuit breaker or fuse and test that power is off before
wiring or servicing fixture!
Step 1
Single Pole
1. Line (Hot)
2. Neutral
3. Ground
4. Load
NOTE: For 3-Way applications, note that one of the screw terminals from the old
switch being removed will usually be a different color (Black) or labeled Common.
Tag that wire with electrical tape and identify as the common (Line or Load) in both
the dimmer wall box and 3-way wall box.
Preparing and connecting wires:
Strip gage
Cut
(if necessary)
5/8"
• Make sure that the ends of the wires from the wall
box are straight (cut if necessary).
• Remove 5/8" (1.6 cm) of insulation from each wire in
the wall box (shown).
• For Single-Pole Application, go to Step 4a.
• For 3-Way Application, go to Step 4b.
Single-Pole Wiring Application:
Step 4a
3-Way
1. Line or Load (See note below)
2. Neutral
3. Ground
4. First Traveler – note color
5. Second Traveler – note color
DI-000-DSM10-02A
Installing your Dimmer
NOTE: Use check boxes when Steps are completed.
√
WARNINGS AND CAUTIONS:
• TO AVOID FIRE, SHOCK, OR DEATH: TURN OFF POWER at circuit breaker or fuse and test that power is off
before wiring or servicing fixture!
• TO AVOID FIRE, SHOCK, OR DEATH: use with compatible dimmable LED and CFL bulbs, incandescent or 120V
halogen fixtures only. For a complete list of compatible LED and CFL bulbs refer to www.leviton.com/universal.
• To be installed and/or used in accordance with appropriate electrical codes and regulations.
• If you are unsure about any part of these instructions, consult an electrician.
• To avoid overheating and possible damage to this device and other equipment, DO NOT install to control a
receptacle, a motor or a transformer-operated appliance, or any other lighting sources than those specified.
3
2
4
1
5
3
2
1
4
Cap with
Wire Connector
Green
Ground
BlackRed
Red
Hot (Black)
Neutral (white)
Line
120VAC, 60Hz
Dimmer
MAXIMUM LOAD PER DIMMER FOR MULTI-DEVICE
Cat. No. Load Single Two
Devices
More than 2
Devices
DSM1
Ø
INC 1000W 800W 700W
DSM10 MLV 1000VA 800VA 700VA
DSM1
Ø
LED/CFL 450W (3.75A) 450W (3.75A) 450W (3.75A)
Black
Dimmer
Lead
3
2
1
4
Dimmer
Green
Dimmer
Lead
Red
Dimme
r
Leads
Slotted/Philips Screwdriver Electrical Tape Ruler
Pliers Pencil Cutters
LOC
OFF
ON
AB
LOC
OFF
ON
AB
Slide
Pot
Alignment
Arrow
Insert top tabs of the
color kit into the slots on
the top of the dimmer.
Then press the bottom
of the color kit in until it
snaps into place.
Press the side of the
color kit at either bottom
tab and pull forward to
release.
Align slide pot with
alignment arrow as
shown. Move the slide
bar of the color kit to the
bottom.
REMOVE
REPLACE
MAXIMUM BULB WATTAGE
Low-voltage dimmers are rated in Volt-Amps (VA). The maximum bulb wattage is
determined by the efficiency of the transformer in the low-voltage lighting system.
Transformer efficiencies will vary from different manufacturers; consider 80%
efficient as average. Use the chart to determine maximum bulb wattage for typical
transformer efficiency ratings.
MAXIMUM BULB WATTAGE AT 80% EFFICIENCY
Rating Single Two Gang More than 2
Gang
1000VA 800W 640W 560W
© 2014 Leviton Mfg. Co., Inc
Restore Power:
Restore power at circuit breaker or fuse.
Installation is complete.
Step 8
For Technical Assistance Call: 1-800-824-3005 (U.S.A. Only)
www.leviton.com
• Lights flickering
- Lamp has bad connection.
- Wires not secured firmly with wire connectors.
• CFL and LED flickers at low end of dimming range
- Increase the low end of the dimming range.
PROGRAMMING Section - setting minimum light level
• CFL or LED bulb flickers throughout dimming range
- Ensure the bulbs are marked dimmable.
- Please refer to recommended dimmable LED and CFL bulbs at
www.leviton.com/universal.
• Light does not turn ON
- Circuit breaker or fuse has tripped.
- Lamp is burned out.
- Lamp Neutral connection is not wired.
NOTE: If further information is needed in identifying the HOT wire in a
3-Way application, go to Leviton's website at www.leviton.com.
Step 4a cont'd
• Green or bare copper wall box wire to GREEN dimmer lead.
• Line Hot wall box wire to BLACK dimmer lead.
• Load wall box wire to RED dimmer lead.
• Remaining RED Dimmer lead should have a label affixed.
DO NOT REMOVE this label in a single pole application.
NOTE: If the insulating label is not affixed to the second RED lead use
electrical tape or a wire connector to cover.
Proceed to Step 5.
3-Way Wiring Application:
Step 4b
Dimmer Mounting:
TURN OFF POWER AT CIRCUIT BREAKER OR FUSE.
Step 7
Installation may now be completed
by carefully positioning all wires to
provide room in wall box for dimmer.
Mount dimmer into box with mounting
screws supplied.
Attach wallplate.
ON/OFF:
Press top of Decora Rocker
- Lights will turn ON.
Press bottom of Decora Rocker
- Lights will turn OFF.
BRIGHTEN & DIM:
Move slide bar
- Lights will BRIGHTEN or DIM.
• Restore power at circuit breaker or
fuse.
• Carefully holding dimmer, move
slider control lever to highest position
and press the top of the Decora
rocker. Lights should turn ON to
brightest level.
If lights does not turn ON, refer to
the TROUBLESHOOTING section.
Testing your Dimmer prior to mounting in the
wall box:
Step 6
Step 5
Dimmer Bulb Selector Switch:
Cat. No. DSM1Ø is pre-set at the factory with the bulb selector
switch set to Mode A (LED/MLV/Incandescent). For CFL bulb
applications the switch should be moved to Mode B (CFL). The
lamp selector slide switch also allows the user to adjust the
minimum light level when dimming. Information on this feature is
found under PROGRAMMING.
NOTE: See illustration for location of bulb selector switch.
DI-000-DSM10-02A
LIMITED 5 YEAR WARRANTY AND EXCLUSIONS
Leviton warrants to the original consumer purchaser and not for the benefit of anyone else that this product at the time of its sale by Leviton is free of defects in materials and workmanship under normal and proper use for five years from the purchase date. Leviton’s only obligation is to correct
such defects by repair or replacement, at its option. For details visit www.leviton.com or call 1-800-824-3005. This warranty excludes and there is disclaimed liability for labor for removal of this product or reinstallation. This warranty is void if this product is installed improperly or in an
improper environment, overloaded, misused, opened, abused, or altered in any manner, or is not used under normal operating conditions or not in accordance with any labels or instructions. There are no other or implied warranties of any kind, including merchantability and fitness for
a particular purpose, but if any implied warranty is required by the applicable jurisdiction, the duration of any such implied warranty, including merchantability and fitness for a particular purpose, is limited to five years. Leviton is not liable for incidental, indirect, special, or consequential
damages, including without limitation, damage to, or loss of use of, any equipment, lost sales or profits or delay or failure to perform this warranty obligation. The remedies provided herein are the exclusive remedies under this warranty, whether based on contract, tort or otherwise.
FOR CANADA ONLY
For warranty information and/or product returns, residents of Canada should
contact Leviton in writing at Leviton Manufacturing of Canada Ltd to the
attention of the Quality Assurance Department, 165 Hymus Blvd, Pointe-
Claire (Quebec), Canada H9R 1E9 or by telephone at 1 800 405-5320.
3
2
4
2
3
4
5
Black
Screw
(common)
3-Way
Black
Dimmer
Lead
Dimmer
Green
Dimmer
Lead
Red
Dimmer
Leads
1
5
1
Green
Ground
BlackRed
Hot (Black)
Neutral (white)
Line
120VAC, 60Hz
Red
Black Screw
(common)
3-Way Dimmer
Move Slide
bar to Brighten
& Dim
Push
ON
Push
OFF
LED
Locator
Light
Connect wires per WIRING DIAGRAM as follows:
• Green or bare copper wall box wire to GREEN dimmer lead.
• Common (Line hot or Load) wire to BLACK dimmer lead.
• Remove insulating label and connect the first traveler wire to the RED dimmer
lead.
• Connect the second traveler wire to the remaining RED dimmer lead.
Proceed to Step 5.
Connect wires per WIRING DIAGRAM as follows:
Setting Minimum Light Level
1. Press bottom of Rocker to turn the dimmer OFF and move the slide bar
to the bottom.
2. Remove color kit (see Changing the color of
your Dimmer section on page 1).
3. Set the bulb selector switch to the LED/
Incandescent position (Mode A).
4. Press on/off actuator to turn load ON.
5. Set the bulb selector switch to the CFL
position (Mode B).
6.
Raise or lower the slide control level to
achieve the desired minimum light level.
7. Set the bulb selector switch back to LED/
Incandescent position (Mode A).
8. A momentary flash of the bulb will occur
confirming the new setting.
9. Press on/off actuator to turn load OFF.
10. Replace color kit (see Changing the color of
your Dimmer section on page 1).
NOTE: For dimmable CFL lamps you must return the bulb selector to the CFL
position (Mode B).
LOC
OFF
ON
AB
ON/OFF
Actuator
Slide
Bar
LED/Incandescent (Mode A): The selector switch is pre-set at the factory to this
mode. Use this mode for dimmable LED bulbs and incandescent/halogen bulbs. To
avoid flickering at the low end of the dimming range you can pre-set the minimum
light level. See PROGRAMMING to manually program the minimum light level.
CFL (Mode B): To be used for dimmable CFL bulbs only. In this mode the dimmer
provides a pre-set kick-start to aid the lamp in starting. To avoid flickering at the low
end of the dimming range you can pre-set the minimum light level.
See PROGRAMMING to manually program the minimum light level.
Locator Light Switch (LOC): The LED Locator Light will illuminate when the load
is OFF. To disable the Locator Light move the Locator Light Switch to the OFF
position.
LOC
OFF
ON
AB
Bulb Selector
Switch
Locator Light
Switch
OFF
ON
LOC
AB
Programming
OPERATION
Troubleshooting
