Crestron CLT-2DIMU8-277 Manual

Crestron Ikke kategoriseret CLT-2DIMU8-277

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Side 1/2

Quick Start

Control up to eight channels of dimmed lighting using the Crestron®

CLX-2DIMU8-277 module. The CLX-2DIMU8-277 supports two 277

VAC line power inputs and can dim LED, incandescent, magnetic

low-voltage, electronic low-voltage, and 2-wire dimmable fluorescent

lighting loads. The CLX-2DIMU8-277 auto-detects the dimmed load

type and selects the appropriate operating mode for each channel.

The CLX-2DIMU8-277 pairs with the CLT-2DIMU8-277 terminal block to

facilitate simple wiring. The CLT-2DIMFLV8-277 ships separately from

the CLX-2DIMFLV8-277 to allow termination and testing of the field

wiring prior to the installation and setup of the CLX-2DIMFLV8-277.

The CLT-2DIMU8-277 and CLX-2DIMU8-277 install in a CAEN enclosure

as part of a complete Crestron centralized lighting control system.

Check the Box

Item Qty

CLX-2DIMFLV8-277 1

Cable, Interconnect (P/N 4500250) 1

Screw, 8-8B x 1/4 in., Pan Head, Phillips (P/N 2007277) 4

CLT-2DIMFLV8-277 1

Label, Terminal Block, CLT-2DIMFLV8, 277V, Left

(P/N 4524249)

Label, Terminal Block, CLT-2DIMFLV8, 277V, Right

(P/N 4524250)

Screw, 8-8B x 1/4 in., Pan Head, Phillips (P/N 2007277) 2

Installation Overview

Unless otherwise indicated, the lighting system specified in this guide

is modular, requiring assembly in the field by a licensed electrician in

accordance with all national and local codes.

If an assembled UL® Listed panel is required, Crestron offers this

service through its UL Listed panel shop. This includes complete

in-factory system configuration and assembly by Crestron for an

additional fee.

WARNING:

• The CLT-2DIMU8-277 and CLX-2DIMU8-277 may be powered

from multiple circuit breakers.

• A licensed electrician must mount the CLT-2DIMU8-277 and

CLX-2DIMU8-277 into the CAEN enclosure in accordance with all

national and local codes.

• When connecting to an arc fault breaker, ensure the load does

not exceed 1,000 watts total. Crestron certified breakers have a

2,000-watt limit.

CAUTION: This equipment is for indoor use only and needs to be air

cooled. Mount in a well-ventilated area. The ambient temperature

must be 32° to 104 °F (0° to 40 °C). The relative humidity must be 0%

to 90% (noncondensing).

IMPORTANT NOTES: When controlling magnetic low-voltage

transformers:

• Do not use a CLX-2DIMU8-277 module for switching or dimming

large magnetic transformers (>100 VA).

• Do not connect more than eight magnetic transformers on any

one output, regardless of lamp wattage.

• Do not hot plug transformers or add or remove bypass jumpers

while the output channel is energized.

• Do not mix magnetic and electronic transformers on the same

output channel.

Failure to follow the guidelines above can lead to damage of the

dimmer module and transformers.

CLT-2DIMU8-277 and CLX-2DIMU8-277 in a Single-Wide CAEN

Enclosure

Ground bus CLT- terminal

block

CLX- module

CLT-2DIMU8-277 and CLX-2DIMU8-277 in a Double-Wide CAEN

Enclosure

Ground bus

CLT- terminal block CLT- terminal blockCLX- modules

Install and Wire the Terminal Block

Install the Terminal Block

Install the CLT-2DIMU8-277 into the lowest available space in the

CAEN enclosure. Mount additional CLT-2DIMU8-277s into the spaces

above it in ascending order.

The CLT-2DIMU8-277 installs along the left side of a single-

wide enclosure and along the outside edges of a double-wide

enclosure. Refer to the CAEN Installation Guide (Doc. 5940) at

www.crestron.com/manuals for mounting information.

1. Turn the power OFF at the circuit breaker(s) or fuse panel(s).

2. Remove the backing from the terminal block label. Align the holes

on the label with the holes on the enclosure and attach the label

to the enclosure.

• Use the Left Terminal Block Label when mounting the

CLX-2DIMU8-277 into a single-wide CAEN enclosure or into

the left side of a double-wide CAEN enclosure

• Use the Right Terminal Block Label when mounting the

CLX-2DIMFLV8-277 into the right side of a double-wide CAEN

enclosure.

3. Align the CLT-2DIMU8-277 with the terminal block label. The

colors on the CLT-2DIMU8-277 match the colors on the terminal

block label. Secure the CLT-2DIMU8-277 to the enclosure using

two 8-8B x 1/4 in. screws. The wiring label lies beneath the

terminal block.

CAUTION: Bypass jumpers are provided to test the circuits and to

protect the module during installation. When properly secured by

five screws, the jumpers on the black and red sections of the terminal

block short (connect) the line in to the dim out so that the circuit is

energized. Do not remove the bypass jumpers until all feed and load

wiring has been completed, the circuit has been tested for electrical

faults, and the module has been installed. Refer to “Module Installation

and Wiring” for details.

Do not remove the two jumpers on the white sections of the terminal

bock that tie the neutral in and neutral out wires.

Wire the Terminal Block

Connect the feed (Line and Neutral) and the load (controlled circuit)

wires to the terminal block. For 2-feed systems, the two power feeds

can be different phases. Follow the labeling on the wiring label.

NOTE: Use copper conductors only, rated 75 °C or greater.

When connecting wires:

• Use 14-10 AWG wire.

• Strip wire to 1/2 in (13 mm).

• Tighten the terminal blocks to 9 in-lb.

Connect the Ground wires to the ground bus inside the enclosure:

• Strip wire to 1/2 in (13 mm).

• Tighten 14-10 AWG wire to 35 in-lb.

• Tighten 8 AWG wire to 40 in-lb.

• Tighten 6-4 AWG wire to 45 in-lb.

Connect the Feed and Load wires to the CLT-2DIMU8-277

LINE 1

Line power from a

15 or 20 A circuit

breaker

N IN 1

Neutral from the

circuit breaker

N IN 2

Neutral from the

circuit breaker

GND

Ground from the

circuit breaker

Bypass

jumpers

Terminal

block

Dim and

Neutral to

loads

Left-side

wiring label

LINE 2

Line power from a

15 or 20 A circuit

breaker

Ground

bus

Module

location

label

NOTE: When wiring the terminal block on right-side double-wide

enclosures, the connection points on the label are reversed.

Test the Terminal Block Wiring:

1. Turn the power ON at the circuit breaker(s) or fuse panel(s).

2. Verify that the circuit breakers do not trip.

3. Verify that the power is delivered to the proper loads.

4. Repeat Steps 1-3 for the other circuit breaker(s) or fuse panel(s).

Install and Wire the Dimming Module

The dimming module installs along the right side of a single-wide

CAEN enclosure and side-by-side in the center of a double-wide CAEN

enclosure. Install the CLX-2DIMU8-277 next to the CLT-2DIMU8-277

and in the lowest available space. Refer to the CAEN Installation Guide

(Doc. 5940) at www.crestron.com for mounting information.

CAUTION: The module contains electrostatic sensitive devices (ESDs);

the unit must be handled from the metal chassis. Do not touch the PC

board or components.

NOTE: Install the modules after the enclosure has been completely

wired. Refer to “Install the Terminal block” for details.

Install the Dimming Module

1. Turn the power OFF at the circuit breaker(s) or fuse panel(s).

2. Secure the dimming module to the enclosure using four

8-8B x 1/4 in. screws.

• The wires on the CLX-2DIMU8-277 should exit and face the

left when installing in a single-wide CAEN enclosure or on the

left side in a double-wide CAEN enclosure.

• The wires on the CLX-2DIMU8-277 should exit and face the

right when installing on the right side in a double-wide CAEN

enclosure

3. Connect the prestripped wires from the module to the terminal

block. Each wire exits the module directly in line with, and is the

same color as, the terminal to which it should be connected.

Wires are prestripped to 1/2 inch (13 millimeters). Tighten to

9 in-lb.

NOTE: The CLX-2DIMU8-277 is powered from the LINE 1

connection.

Wiring the Terminal Block to the Module

(Single-Wide and Left-Side Double-Wide Enclosures)

Black from breaker

White from panel

Red to loads

White to loads

Install the Module Interconnect Cable (Optional)

If multiple modules are installed within an enclosure, use the module

interconnect cable (supplied) to pass control system communication

to the module. The illustration that follows shows the area within a

double-wide enclosure where the corners of four modules meet.

NOTE: One wire on the module interconnect cable may be a different

color from the rest. The color has no bearing on its orientation during

installation.

Using Module Interconnect Cable to Wire One Module to Another

Module interconnect

cable attached

Connection

not made

CLT-2DIMU8-277/CLX-2DIMU8-277

Terminal Block and Module

Produkt Specifikationer

Mærke:	Crestron
Kategori:	Ikke kategoriseret
Model:	CLT-2DIMU8-277

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