Crestron CLTI-2DIMU8 Manual

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CLTI-2DIMU8/CLXI-2DIMU8

Terminal Block and Module

Installation Guide

Description

The Crestron

230 V, 2-Feed, 8-Dimmer Terminal Block and Module (CLTI-2DIMU8 and

CLXI-2DIMU8) are considered single entities and must be used together. They ship

separately to permit termination of the eld wiring to the terminal block (CLTI) prior to

installation of the module (CLXI). The terminal block is designed to terminate the circuit

feed (LINE and NEUTRAL) and distribute the controlled circuit (LOAD) to the xtures. The

module connects to the terminal block and performs dimming control of LED,

incandescent, magnetic low-voltage, or dimmable 2-wire uorescent lighting loads.

The maximum load is 2.5 A per channel; the maximum load is 20 A total for the

CLXI-2DIMU8. The CLXI-2DIMU8 accepts two 10 A feeds that can be different phases.

An oversize heat sink dissipates heat efciently. There are LEDs on the module to indicate

communication to a Cresnet

network, input power to the module, and output power to

the load.

The CLTI terminals and CLXI modules are shown in the following illustrations.

CLTI-2DIMU8 Terminal Block with Left- and Right-Side CLXI-2DIMU8 Labels

Additional Resources

Visit the product page on the Crestron website

(www.crestron.com) for additional information

and the latest rmware updates. Use a QR

reader application on your mobile device to

scan the QR image.

CLXI-2DIMU8 Module (Connects to a CLTI-2DIMU8)

Terminal Block and Module Layout for a Double-Wide Enclosure (CLTI-2DIMU8 and

CLXI-2DIMU8 Shown)

Ground bus

CLTI- terminal

block

CLXI- module

Ground bus

CLTI- terminal block CLTI- terminal blockCLXI- module

NOTE: Unless otherwise indicated, the lighting system specied in this guide is

modular, requiring assembly in the eld 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 conguration and assembly

by Crestron for an additional fee.

Terminal Block Installation and Field Wiring

Terminal block installation requires installation of the supplied adhesive label and the

terminal block. The adhesive label provides the labeling for each terminal in the terminal

block and is designed to accommodate installation into the left or right side of a cabinet.

Refer to the illustrations that follow for details.

WARNING: The CLXI-2DIMU8 may be powered from multiple circuit breakers.

NOTE: Both left-side and right-side adhesive wiring labels are provided. The left-side

labels are used in both single- and double-wide enclosures. The right-side labels are

used only in double-wide enclosures.

1. Remove the backing from the left- or right-side adhesive wiring label.

2. Apply the adhesive label by aligning the holes in the label with the holes on the

Crestron Automation Enclosure where the terminal block is to be mounted. The

wiring label lies beneath the terminal block.

3. Use the two supplied self-tapping Phillips pan head screws (8B x 1/4 in length) to

secure the terminal block to the Crestron Automation Enclosure.

CAUTION: Bypass jumpers are provided to allow testing of circuits and to protect

the module during installation. When properly secured by ve screws, each of the

two jumpers on the brown and red sections of the terminal block shorts the line in

to dim out so that the circuit is energized. Do not remove any 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.

Furthermore, the two jumpers on the blue sections of the terminal block tie the

neutral ins to the neutral outs. These jumpers should never be removed.

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

4. Turn off the circuit breakers.

5. Connect the circuit feed (line and neutral) and controlled circuit (load) wires to the

terminal block per the markings provided on the wiring label. Terminal blocks accept

one 2.5–6 mm

wire. Strip the wires to 12 mm (1/2 in). Tighten terminal blocks to

1 Nm.

6. Grounding terminal blocks are available in the cabinet for termination of ground

wires. Tighten to 4 Nm (2.5–6 mm

), 4.5 Nm (10 mm

), or 5.1 Nm (16–25 mm

7. Test each circuit for electrical faults by turning on each of the circuit breakers and

checking that the breakers do not trip and that power is delivered to the proper

loads.

Wiring the Terminal Block to the Feed and Load(s) (Single-Wide and Left-Side Double-Wide

Enclosures)

LINE 1

Connection from a

15 or 20 A circuit

breaker

Bypass

jumpers

Terminal

block

To loads

Left-side

wiring label

LINE 2

Connection from a

15 or 20 A circuit

breaker

Ground

bus

Module

location

label

NEUTRAL

GND

CLTI-2DIMU8 CLXI-2DIMU8

Specications

Specications are listed in the table below.

Installation

A licensed electrician must mount the terminal block and module into a Crestron

Automation Enclosure in accordance with all national and local codes.

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 10° to 40 °C (32° to 104 °F). The

relative humidity must be 0% to 90% (noncondensing).1

NOTE

: For 2-feed systems, the two input lines can be different phases.

NOTE: When connecting to an arc fault breaker, ensure the load does not exceed

1,000 W total. Crestron certied breakers have a 2,000 W limit.

IMPORTANT NOTES: When controlling magnetic low-voltage transformers:

• Do not use a CLXI-2DIMU8 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.

NOTE: Before using the CLXI-2DIMU8, ensure the device is using the latest rmware.

Check for the latest rmware for the CLXI-2DIMU8 at www.crestron.com/rmware. Load

the rmware onto the device using Crestron Toolbox™ software.

Install terminal blocks along the left side of single-wide enclosures and along the outside

edges (left and right sides) of double-wide enclosures. Install modules along the right side

of single-wide enclosures and side-by-side in the center of double-wide enclosures. When

installing modules and terminal blocks in a double-wide enclosure, be sure to invert the

units on the right side so that they can be properly wired. Refer to the illustrations that

follow when considering the location of terminal blocks and modules within an enclosure.

NOTE: Modules and terminal blocks must be installed into the lowest available spaces

and continue toward the top of the enclosure.

Terminal Block and Module Layout for a Single-Wide Enclosure (CLTI-2DIMU8 and

CLXI-2DIMU8 Shown)

* When connecting to a third-party arc fault breaker, ensure that the total load does not exceed 1,000 W

per feed.

SPECIFICATION DETAILS

Load Ratings

Dimmer Channels 8

Per Channel 2.5 A

Per Group Channels 1–4: 10 A

Channels 5–8: 10 A

Module Total 20 A*

Minimum Load 0 A

Dimming Modes Auto-load detection, forced reverse-phase, forced

forward-phase

Load Types LED, incandescent, magnetic low-voltage, electronic

low-voltage, 2-wire uorescent and nondimmable

lighting

Power Requirements One or two feeds (the same or different phases)

230 Vac, 50/60 Hz, single-phase

Environmental

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

Humidity 10% to 90% RH (noncondensing)

Heat Dissipation 12 Btu/h + (3.8 Btu/h x Load Current in A)

88 Btu/h at maximum load

Enclosure Gray metal with black heat sink, surface mount

module with two integral mounting anges;

Occupies 1 module space in a CAEN or CAENIB

enclosure

Voltage Limit for

SELV/PELV Circuits

24 V

Produkt Specifikationer

Mærke:	Crestron
Kategori:	Ikke kategoriseret
Model:	CLTI-2DIMU8

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