Page 1
Single Pole (One location) or 3-Way (Multi-location)
Magnetic Low-Voltage Dimmer
Cat. No. TGM1Ø-1L (Lighted)
1000VA–120VAC, 60Hz
INSTALLATION INSTRUCTIONS
DI-000-TGM10-02A
Tools needed to install your Dimmer:
Slotted/Phillips Screwdriver Electrical Tape
Pliers Pencil
Cutters Ruler
Installing Dimmer by itself or with other devices:
If installing Dimmer in a single device application, proceed with the
INSTALLING YOUR DIMMER section. If installing Dimmer in a multidevice application, proceed as follows:
MULTI-DEVICE APPLICATION
NOTE: You only need to remove side sections if installing with other
dimmers or if it does not fit in wall box – not when installing with
mechanical switches.
When installing more than one dimmer, the side sections of the
mounting strap must be removed. Use pliers to carefully bend side
sections back and forth until they break off. The side sections
dissipate heat, so removing them requires a derating of the dimmer's
capacity (see chart).
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 lowvoltage lighting system. Transformer efficiencies will vary from
different manufacturers; consider 75% efficient as an example. Use
the chart to determine maximum bulb wattage for typical transformer
efficiency ratings.
INSTALLING YOUR DIMMER
NOTE: Use check boxes when Steps are completed.
WARNING: To avoid fire, shock, or death; TURN OFF
POWER at circuit breaker or fuse and test that power is off
before wiring!
Removing existing switch: Remove existing
wallplate and switch mounting screws. Carefully pull switch
from wall box. DO NOT remove wires attached to the switch
at this time.
Identifying your wiring application (most
common):
NOTE: If the wiring in the wall box does not resemble any of
these configurations, consult a qualified electrician.
Step 2
Preparing and connecting wires:
Step 4
Single-Pole Wiring Application:
Step 1
Step 3
WARNINGS & CAUTIONS:
•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 a qualified electrician.
•To avoid overheating and possible damage to this device and other equipment, do not install to
control a receptacle, fluorescent lighting, a motor- or a transformer-operated appliance.
• Use with magnetic low-voltage transformers, incandescent, or 120V halogen fixtures only. Use a
Leviton electronic low-voltage dimmer to control electronic (solid state) low-voltage transformers.
•Total minimum wattage must exceed 40VA.
WARNINGS & CAUTIONS:
• When magnetic low-voltage circuits are operated at a dim level, with all lamps inoperative, excess
current may flow through the transformer. To avoid possible transformer failure due to overcurrent, use
a transformer that incorporates thermal protection or a fuse at the primary windings.
• 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.
• Disconnect power at circuit breaker or fuse when servicing fixture.
• Use this device only with copper or copper clad wire. With aluminum wire use only devices marked
CO/ALR or CU/AL.
•Recommended to use with non-metallic wallplates.
Bend back and
forth to remove side
section
Remove
all inner
side
sections
Do not
remove
outer
side
sections
√
Step 5a
Insert wires
straight then twist
clockwise
Electrical
Tape
More than
Cat. No. Single Two Devices 2 Devices
TGM1
Ø
-1L 1000VA 800VA 700VA
MAXIMUM LOAD PER DIMMER FOR MULTI-DEVICE
Two More than
Rating Single Gang
2 Gang
1000VA 750W 600W 525W
MAXIMUM BULB WATTAGE AT 75% EFFICIENCY
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFFONOFF
ONOFF
ONOFF
ONOFF
ONOFF
2
4
3
1
2
4
1
5
3
3-Way
1. Line or Load
(See important
instruction below)
2. Neutral
3. Ground
4. First Traveler – note color
5. Second Traveler – note color
Single-Pole
1. Line (Hot)
2. Neutral
3. Ground
4. Load
IMPORTANT:
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.
Step 3 cont'd
• 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 5a.
• For 3-Way Application, go to Step 5b.
Cut
(if necessary)
Strip Gage
(measure bare wire here)
5/8"
(1.6 cm)
Black
Red
Neutral
Green
Ground
Red
This wire is used in 3-way installations only.
For single pole installations, do not remove this
insulating label.
4
3
1
2
Page 2
Connect wires per WIRING DIAGRAM as
follows:
Screw wire nuts on clockwise making sure no bare
conductors show below the wire connectors.
Secure each connector with electrical tape.
• Green dimmer Ground lead to Green or bare copper wire
in wall box.
• Black dimmer lead to any wall box wire removed from old
switch.
• Red dimmer lead without insulating label to remaining wall
box wire.
• Remaining Red dimmer lead should have Red insulation
label affixed.
NOTE: If insulating label is not affixed to Red lead, use a
small wire nut or electrical tape to cap off.
•Proceed to Step 6.
3-Way Wiring Application:
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, if within such five year period the product is returned prepaid, with proof of purchase date, and a description of the problem to Leviton Manufacturing Co., Inc., Att: Quality Assurance Department, 59-25 Little
Neck Parkway, Little Neck, New York 11362-2591. 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.
Connect wires per WIRING DIAGRAM as follows:
Screw wire nuts on clockwise making sure no bare
conductors show below the wire connectors. Secure each
connector with electrical tape.
NOTE: Control can be installed on either the Load or
Line side of the 3-way circuit.
• Green dimmer Ground lead to Green or bare copper
wire in wall box.
• Black dimmer lead to tagged (common) wall box wire
identified when removing old switch.
• Remove Red insulating label from Red lead.
• Any Red dimmer lead to any of the remaining wall box
wires.
• Remaining Red dimmer lead to remaining wall box wire.
Testing your Dimmer prior to completely
mounting in wall box:
Dimmer Mounting:
TURN OFF POWER AT CIRCUIT BREAKER OR FUSE.
Step 7
Restore Power: Restore power at circuit breaker or
fuse. Installation is complete.
OPERATION
NOTE: On the lighted models, indicator light will illuminate when
the dimmer is in the OFF position to facilitate access in the dark.
NOTE: If using the dimmer in a 3-way application, the lights will
turn ON at brightness set on dimmer's touch pad. The lighting can
be controlled from either the dimmer or the switch location.
TROUBLESHOOTING
• Lights Flickering
- Lamp has a bad connection.
- Lamp power is less than 40VA.
- Wires not secured firmly with wire connectors.
• Light does not turn ON and ON/OFF LED does not turn ON
- Circuit breaker or fuse has tripped.
- Lamp is burned out.
- Lamp Neutral connection is not wired.
For non-standard wiring applications, refer
to Wire Nut and Conductor Size Chart
DI-000-TGM10-02A
Step 5b
Hot (Black)
Neutral (White)
Load
Dimmer
3-Way Switch
Red
Black
Green
Ground
Green
Ground
Black
White
Red
Line
120VAC, 60Hz
Common
Terminal
(Black Screw)
(PRIMARY SIDE OF
MAGNETIC LOW-VOLTAGE
TRANSFORMER)
}
TOP
ON
ON
OFF
OFF
ON
ON
Step 6
Hot (Black)
Neutral (White)
Load
Black
Green
Ground
Black
White
Red
Line
120VAC, 60Hz
Red
Insulating
Label
Dimmer
(PRIMARY SIDE OF
MAGNETIC LOW-VOLTAGE
TRANSFORMER)
}
TOP
Step 8
WIRE NUT / # OF CONDUCTOR
COMBINATION CHART
1- #12 w/ 1 to 3 #14, #16 or #18
2- #12 w/ 1 or 2 #16 or #18
1- #14 w/ 1 to 4 #16 or #18
2- #14 w/ 1 to 3 #16 or #18
Black
Red
Neutral
Green
Ground
Red
Tag
4
5
3
1
2
Step 5b
con’t
ON/OFF:
Move toggle handle up – Lights will
turn ON.
Move toggle handle down – Lights will
turn OFF.
BRIGHTEN :
Touch top touch pad – Lights will
BRIGHTEN.
DIM:
Touch bottom touch pad – Lights will
DIM.
CLEANING:
To clean touch plate, wipe it with a
clean damp cloth using clean water
only, dry thoroughly.
Step 5a
con’t
Insert wires
straight then twist
clockwise
Electrical
Tape
PRODUCT INFORMATION
•For technical assistance, contact us at
1-800-824-3005
• Visit our website at
www.leviton.com
Touch Pad
Single-Pole Wiring Application:
•Position all wires to provide room in wall box for device.
• Par tially secure device using long mounting screws provided.
• Restore power at circuit breaker or fuse.
•Move toggle handle up. Lights should turn ON. If lights do not turn ON,
touch top touch pad to brighten the lights. Lights should brighten.
If lights still do not turn ON, refer to the TROUBLESHOOTING
section.
NOTE: Dress wires with a bend as shown in diagram to relieve stress
when mounting device.
• Installation may now be
completed by firmly tightening
mounting screws.
• Attach wallplate.
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