Legrand MCD267 Universal Dimmer Installation guide

Brand: Legrand

Model: MCD267 Universal Dimmer

Category: Dimmers

Type: Installation guide

MCD267

Universal Dimmer

Specifications

Voltage ...............................................................120VAC, 60Hz

Operating Temperature .................32°F to 104°F (0°C to 40°C)

Maximum Load Rating ..................................................... 600W

Minimum Load Required ................................................... 25W

Load Type Compatibility ..............................................25-600W

Incandescent and quartz halogen lamps

The following are limited to a maximum load of 500W:

Magnetic low voltage transformers, dimming rated

electronic low voltage transformers, dimming

rated cold cathode neon ballasts, dimming rated

2-wire ﬂ uorescent(Advance MK X orequivalent)

and compact ﬂ uorescent ballasts

U.S. Patent 6,175,220. Other utility,

design, and foreign patents pending.

Installation Instructions

UNIT DESCRIPTION

The Miro™ MCD267 Universal Dimmer is mounted inside a wall box and framed

by an architectural screwless Miro wall plate (required and sold separately).

When used in conjunction with optional Miro MCD68 multilocation controllers,

the MCD267 offers control of a dimming circuit from multiple locations.

Load Types

Use the Miro Universal Dimmer for these load types (at 120V):

• Incandescent and quartz halogen lamps (25-600W)

• Dimmable magnetic or electronic low voltage transformers (25-500W)

• Dimmable cold cathode, neon ballasts (25-500W)

• Dimmable, 2-wire ﬂ uorescent (Advance MK X or equivalent) and compact

ﬂ uorescent ballasts (25-500W)*

* Lamps must be burned in to manufacturer’s speciﬁ cations before use.

See “Fluorescent Setup” for conﬁ guration information.

Do not mix different load types on the same dimmer.

Do not use with ﬂ uorescent ﬁ xtures other than those listed

Derating

When more than one dimmer is installed in a multi-gang box, it is necessary to

reduce the maximum load on each dimmer:

• For a dimmer in either end position of a multi-gang box, reduce its maximum

load by 100W.

• For a dimmer in a central position of a multi-gang box, reduce its maximum

load by 200W.

CAUTION

To reduce the risk of

overheating and possible

damage to other equipment,

do not install to control

a receptacle, or a motor-

operated appliance.

CAUTION

Aﬁ n de réduire le risque de

surchauffe et la possibilité

d’endommager d’autres

matériels, ne pas installer

pour commander une prise

ou un appareil à moteur.

INSTALL IN COMPLIANCE WITH ALL APPLICABLE CODES AND

STANDARDS.

Failure to follow these instructions may cause personal

injury or equipment damage.

INSTALLATION

For ease of installation, use in a wall box that is at least 2

” deep.

1. Disconnect power to circuit by turning circuit breaker OFF before installation.

2. Remove existing cover plate and switch.

3. Temporarily attach the steel subplate for the

Miro cover plate to the wall box.

4. Pull the wiring through the new Miro subplate.

5. Strip existing wires 1/2”. If two wires will be

connected to the same terminal on a Miro device, both

wires must be the same gauge (12AWG or 14AWG).

6. ...select your application to continue...

Single Location Application

7. Wire the LINE (black), NEUT (white), and GND supply wires to the

correspondingly marked screw terminals and wire the load (black) wire to the

LOAD terminal, according to Figure 1.

LOAD

LINE

GND

Wire Legend

Ground

Line

Neutral

NEUT

Figure 1: Single location wiring

MCD267

DIMMER

CAUTION

TURN THE POWER OFF AT THE CIRCUIT BREAKER

BEFORE INSTALLING THE DEVICE.

Install only using a UL Listed Miro cover plate and subplate

assembly. If you do not have the proper Miro subplate for your

application, obtain one from any supplier of Miro devices.

Steel

subplate

Wall box

GND

LOAD

LINE

GND

REMOTE

MCD68

Multilocation

Controller

MCD267

DIMMER

Supply

Wires

Load

Wires

12AWG

14AWG

between

Miro

devices

Wire Legend

Traveler

Ground

Line

Neutral

NEUT

Connect traveler wire (red) between the

REMOTE terminals on each device in the circuit.

Max. traveler wire 200' (60m).

Figure 2: Two location wiring

Two Location Application

Use with one Miro MCD68 multilocation controller.

DO NOT WIRE WITH CONVENTIONAL SWITCHES

AS PART OF a 3-WAY or 4-WAY SWITCHING CIRCUIT.

7. Install the MCD267 dimmer and the MCD68 controller, following the wiring

diagram in Figure 2. The dimmer can go in either location. Use a 3-wire

and ground cable to wire between devices. (In existing 3-way switched

installations this wire is already in place.) The MCD68 requires a ground. Be

sure to verify the ground connection.

Three or More Location Application

Use with two or more Miro MCD68 multilocation controllers, for multilocation

control.

DO NOT WIRE WITH CONVENTIONAL SWITCHES

AS PART OF a 3-WAY or 4-WAY SWITCHING CIRCUIT.

7. Install the MCD267 dimmer and the MCD68 controllers, following the wiring

diagram in Figure 3. The dimmer may be in any position in the circuit. Use a

3-wire and ground cable to wire between devices. (In existing 3-way switched

installations this wire is already in place.) Be sure to verify the ground

connection.

Finishing the Installation

8. Using the instructions provided with the Miro cover plates, attach each of

the Miro devices to their associated metal subplate and to the wall box, then

attach the Miro cover.

9. Switch the circuit breaker ON.

10. Make sure the LED on the MCD267 dimmer is lit. There is no LED on the

MCD68 controller.

GND

REMOTE

Load

Wires

Wire Legend

Traveler

Ground

Line

Neutral

GND

LOAD

LINE

GND

REMOTE

MCD68

Multilocation

Controller

MCD267

DIMMER

Supply

Wires

12AWG

14AWG

between

Miro

devices

MCD68

Multilocation

Controller

NEUT

Connect traveler wire (red) between the

REMOTE terminals on each device in the circuit.

Max. traveler wire 200' (60m).

Figure 3: Wiring for 3 or more locations

Fluorescent Setup

If the dimmer will operate 2-wire ﬂ uorescent or compact ﬂ uorescent loads, a

special conﬁ guration step is required; if not, skip ahead to “Operation.”

1. Press and hold

until the LED ﬂ ashes yellow (about 2 seconds).

2. Release

then press the top of the device paddle ( ) until LED brieﬂ y ﬂ ashes

red.

3. Press and hold until the LED changes to green (about 2 seconds).

4. To reconﬁ gure the dimmer to control non-ﬂ uorescent loads, repeat the above

steps 1-3, but press the bottom of the device paddle (

) rather than in step

2; the LED brieﬂ y ﬂ ashes green to conﬁ rm the cancellation of ﬂ uorescent

operation.

OPERATION

Tap once Fade the load to its last-used level

Tap twice Full bright

—

— Press and hold Increase the present level

Tap once Fade the circuit to OFF

—

— Press and hold Decrease the present level

Note: The dimmer may feel warm to the touch during normal operation.

When you

see

in the

instructions,

touch the top

of the switch

as directed.

When you

see

in the

instructions,

touch the

bottom of

the switch as

directed.

Replacing Lamps

When a lamp must be replaced, use the Air Gap Isolation feature for safety. This

feature is only available at the dimmer, which can be identiﬁ ed by its status LED.

(The MCD68 Multilocation Controllers do not have an LED and can not operate

this feature.)

To activate the feature from the dimmer:

Press

FIRMLY, so that the paddle clicks and latches in. Make sure the status

LED is extinguished, indicating that it’s safe to relamp.

To release and return to normal operation, press

Power Fail Memory

After a power failure, all Miro devices automatically return to the state that they

were in immediately prior to loss of power.

CLEANING

Clean only using a cloth dampened with water and a little mild detergent.

Use of solvents or hydrocarbon-based cleaners may cause permanent damage

TROUBLESHOOTING

With one or more MCD68 multilocation controllers in the circuit, the dimmer

works, but the multilocation controllers don’t function.

LINE and LOAD connections might be reversed. Check to make sure the

connections are correctly terminated at the dimmer.

The MCD68 Multilocation Controllers require a ground connection. Check to

make sure the ground wires are securely connected.

The light level changes without pressing any switches, or the dimmer does not

respond when I press its switch.

There may be a problem with the traveler wire. Remove power from the

circuit. Disconnect all traveler wires from the dimmer’s Remote terminals.

Restore power. If the dimmer now operates the load properly, the problem

is with the traveler wire. It may be too long or may be shorted to another

conductor.

The Dimmer does not work and the status LED is ﬂ ashing red

• at 1Hz (5 times in 5 seconds):

The dimmer has detected an unsuitable load or a load below 25 watts.

To clear the fault condition, tap

and wait for the LED to turn green.

Disconnect power, check the load, restore power and try again.

Warranty Information

Manufacturer warranties its products to be free of defects in materials and

workmanship for a period of five (5) years. There are no obligations or liabilities

on the part of manufacturer for consequential damages arising out of, or

in connection with, the use or performance of this product or other indirect

damages with respect to loss of property, revenue or profit, or cost of removal,

installation or reinstallation.

03871r2 9/2007

• at 2Hz (10 times in 5 seconds):

The dimmer has detected an overload condition and has shut down.

To clear the fault condition, tap and wait for the LED to turn green.

Disconnect loads in excess of rated load and try again.

• at 3Hz (15 times in 5 seconds):

The dimmer has detected a short-circuit condition and has shut down.

To clear the fault condition, tap

and wait for the LED to turn green.

Remove power, rectify the short-circuit condition, restore power and try again..

2800 De La Cruz Blvd.

Santa Clara, CA 95050

Phone: 800.879.8585

www.wattstopper.com

Please

Recycle

1061 South 800 East

Orem, UT 84057

Phone: 800.555.9891

www.vantagecontrols.com

Watt Stopper Customers contact: Vantage Customers contact:

Legrand MCD267 Universal Dimmer Installation guide

Brand: Legrand

Model: MCD267 Universal Dimmer

Category: Dimmers

Type: Installation guide

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Legrand MCD267 Universal Dimmer Installation guide

Legrand MCD267 Universal Dimmer Installation guide

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