Johnson Controls CD-W00-x0-2 Series Installation Guide

24-10864 -1,Rev.B

CD-W00-x0-2 Series Wall Mount CO2 and Temperature Transmitters

Installation Instructions	Part No. 24-10864-11, Rev. B
CD-W00-00-2, CD-W00-N0-2	Issued March 2016
	Refer to the QuickLIT website for the most up-to-date version of this document.

North American Emissions Compliance

United States

This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when this equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area may cause harmful interference, in which case users will be required to correct the interference at their own expense.

Canada

This Class (A) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.

Cet appareil numérique de la Classe (A) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Installation

IMPORTANT: The CD-W00-x0-2 Series Wall Mount CO2

and Temperature Transmitters are intended to provide an input to equipment under normal operating conditions. Where failure or malfunction of the transmitter could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the transmitter.

IMPORTANT : Le CD-W00-x0-2 Series Wall Mount CO2

and Temperature Transmitters est destiné à transmettre des données entrantes à un équipement dans des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du CD-W00-x0-2 Series Wall Mount CO2 Transmitters risque de provoquer

des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du CD-W00-x0-2 Series Wall Mount CO2 and

Temperature Transmitters.

!	CAUTION: Risk of Electric Shock.
	Disconnect the power supply before making
	electrical connections to avoid electric shock.
	MISE EN GARDE : Risque de décharge
	électrique.
	Débrancher l'alimentation avant de réaliser tout
	raccordement électrique afin d'éviter tout risque
	de décharge électrique.

CD-W00-x0-2 Series Wall Mount CO2 and Temperature Transmitters

Installation Instructions

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!	CAUTION: Risk of Property Damage.
	Do not apply power to the system before
	checking all wiring connections. Short circuited
	or improperly connected wires may result in
	permanent damage to the equipment.

MISE EN GARDE : Risque de dégâts matériels.

Ne pas mettre le système sous tension avant d'avoir vérifié tous les raccords de câblage. Des fils formant un court-circuit ou connectés de façon incorrecte risquent d'endommager irrémédiablement l'équipement.

!	CAUTION: Risk of Property Damage.
	Do not run low voltage cable in the same conduit
	or wiring troughs with high voltage wires.
	Running low and high voltage wires in the same
	conduit or wiring troughs may damage the
	equipment or cause system malfunction.

MISE EN GARDE : Risque de dégâts matériels.

Ne pas faire courir un câble basse tension dans les mêmes gaines ou goulottes électriques que des câbles haute tension. L'installation de fils basse tension et haute tension dans les mêmes gaines ou goulottes électriques risque d'endommager l'équipement ou de provoquer des dysfonctionnements du système.

IMPORTANT: Use copper conductors only. Make all wiring in accordance with local, national, and regional regulations. Do not exceed the CD-W00-x0-2 Series Wall Mount CO2 and Temperature Transmitters electrical

ratings. Exceeding transmitter electrical ratings can result in permanent damage to the transmitter and void any warranty.

IMPORTANT: When using multi-stranded wire cable, apply a cable ferrule to the cable end. If the distance between the sensor and the controller is over 3 meters (9.8 feet), use shielded cable. Connect the shield at the controller end of the cable.

Location Selection

When mounting wall model transmitters:

•Select a location that well represents the area of interest.

•Do not install the transmitter on the ceiling.

•Avoid placing the transmitter near heat and moisture sources, close to the discharge of the supply air ducts, and in direct sunlight.

Figure 1: Location Selection

Installing the Mounting Base and Cable

1.Open the transmitter by pulling outward on the paper tab that holds the cover and mounting base together (Figure 2).

Figure 2: Pull Outward on the Paper Tab

2.Pull the mounting base away from the cover, starting from the top.

3.Pull out approximately 6 in. (152 mm) of wire from the wall and insert the wire through the hole in the mounting base.

Note: Route the cable through the hole in the mounting base if possible. You can also bring the cable to the housing from above or below, but you have to break off the small plastic tab that covers the hole on top or bottom of the mounting base.

Note: Do not route the cable through the area marked NO CABLES on the mounting base (Figure 3). That space is taken up by the CO2 measurement module

when the cover is attached.

4.Align the mounting base on the wall, and confirm that the arrow imprinted on the mounting base is pointing up (Figure 3).

IMPORTANT: Proper orientation is important. Air must flow through the vents on the bottom and the top.

5.Secure the mounting base to the wall, using at least two field-supplied screws (Figure 3).

CD-W00-x0-2 Series Wall Mount CO2 and Temperature Transmitters Installation Instructions

2

UP

Figure 3: Route the Cable From Behind (Left)

and Mount the Wall Plate (Right)

Note: When you bring the cable through the wall, seal the cable opening. If left unsealed, the hole allows air from outside the room into the transmitter and affects the measurement readings. For example, fresh concrete binds CO2 and may cause low readings,

especially in new buildings.

Connecting the Cable to the Mounting Base

Connect the wires from the cable to the screw terminals on the mounting base. The terminal assignments are marked next to the screw terminals.

Maximum wire size is 2 mm2 (AWG 14).

1.Strip 1/4 in. (6.35 mm) of insulation from the ends of the power and output signal wires.

Note: To prevent a short circuit from occurring, make sure that the wires are stripped to the correct length and fully inserted into the terminal blocks. If using shielded cable, ensure that the shield is protected from contact with components on the top or bottom side of the printed circuit board. Failure to follow proper wiring procedures may cause the transmitter to fail.

2.Connect the wires to the mounting base screw terminals as shown in Figure 4.

Power Supply 24 VAC/DC (+)

Power Supply Common (-)

Signal Out 4 to 20 mA (+)

Signal Out 0 to 10 V (+)

Signal Common (-)

Temperature Sensor

Temperature Sensor Common

+CO2 4...20mA

+CO2 0...10 V

-CO2

t+

<![if ! IE]>

<![endif]>FIG:CO2_wrng

Figure 4: Screw Terminals

Note: The transmitter is capable of generating both voltage and current output. Each output has its own individual positive screw terminal.

Power Supply Requirements

The transmitter requires a 24 VAC/VDC, Class 2 power supply. Although the power input includes a halfwave rectifier, we recommend using a DC supply to avoid excessive current peaks.

Connections to a 24 VAC Power Supply

Connecting more than one transmitter to a single 24 VAC transformer forms a common loop and increases the risk of a short circuit. We recommend that you use a separate floating supply for each transmitter (see Figure 5).

CO2 Transmitter/	CONTROLLER
Module

24 VAC	Supply	24V	mA or V	Signal
	voltage		Common	output
		CO2 Transmitter/
			Module

24 VAC	Supply	24V	mA or V	Signal
	voltage		Common	output
				<![if ! IE]> <![endif]>FIG:conn sepac

Figure 5: Connecting Separate AC Supplies

(Recommended)

If several transmitters share a common transformer, always connect the transmitter common (-) to the same side of the transformer to maintain the polarity. A shared common line at the controller may cause a short circuit if the phase is not the same (Figure 6).

CO2 Transmitter/	CONTROLLER
Module

24 VAC	Supply	24V		mA or VA Signal
	voltage		Common	output	SHARED
					COMMON
		CO2 Transmitter/			LINE
			Module
	Supply	24V		mA or VA Signal
	voltage		Common	output	<![if ! IE]> <![endif]>:conn sngsev

<![if ! IE]>

<![endif]>FIG

Figure 6: Connecting One AC Supply to Several Transmitters (Not Recommended)

Completing the Installation

Install the cover on the mounting base:

1.Slide the bottom of the cover onto the tabs at the bottom of the mounting base.

2.Tilt the top of the cover toward the mounting base.

CD-W00-x0-2 Series Wall Mount CO2 and Temperature Transmitters Installation Instructions

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