Install Instructions

ManualsBrandsVeris ManualsCO2 SensorsAnalog Air Quality Sensor for CO2, Humidity, & Temperature w/ LCD Display, Transmitter

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.

NOTICE

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classied locations.

•

Read and understand the instructions before installing this product.

• Turn o all power supplying equipment before working on it.

• The installer is responsible for conformance to all applicable codes.

If this product is used in a manner not specied by the manufacturer, the protection

provided by the product may be impaired. No responsibility is assumed by the

manufacturer for any consequences arising out of the use of this material.

Installation Guide

Air Quality

Product Identication

Product Overview

The CW2 Series of air quality sensors for living space is a exible multi-sensor platform for use with BAS controllers

designed to accept 4 to 20mA, 0 to 5Vdc or 0 to 10Vdc outputs. CW2 Series sensors are available with three user

interface options: touchscreen, LCD with three buttons and blank. CO2 and temperature sensors are included with

all CW2 Series air quality sensors. Models with VOC sensors and relative humidity sensors are also available.

* Replaceable 1% with NIST certicate, 2% with NIST certicate and 2% elements available.

** VOC only availble with temperature transmitter option

*** For analog non-display, non-RH, models with RTD/thermistor order from CWE2 line.

CW2 Series

Wall Mounted Air Quality Sensors

Specications

OPERATING ENVIRONMENT

Input Power Class 2; 20 to 30 Vdc, 24 Vac, 50 to 60 Hz

Analog Output Selectable 4 to 20 mA, 0 to 5 V, 0 to 10 V

Operating Temp. Range 0 to 50 °C (32 to 122 °F)

Operating Humidity Range 0 to 95% RH non-condensing

Housing Material High-impact ABS plastic

Terminal Block Torque 0.5 to 0.6 N-m (0.37 to 0.44 in-lbf)

CO2 TRANSMITTER

Sensor Type Non-dispersive infrared (NDIR), diusion sampling

Output Range 0 to 2000/5000 ppm (selectable)

Accuracy ±30 ppm ±3% of measured value

Repeatability ±20 ppm ±1% of measured value

Response Time <60 seconds for 90% step change

VOC TRANSMITTER OPTION

Sensor Type Solid state

Output Range 0 to 100% AQI for VOC

Accuracy ±15% of measured value

Output Scale 0 to 1,000 ppb of total VOC (TVOC)

CW2Txxxx CW2Lxxxx CW2Xxxxx

CW2

User Interface Output RH Accuracy* Temperature VOC Sensor

T = Color touchscreen

L = 3-button LCD display

X = None***

A = Analog output 2 = 2%

X = None***

A = Transmitter

C = 1000 PT RTD

D = 10K T2 thermistor

H = 10K T3 thermistor

K = 10K curve G/11K shunt

M = 20K NTC thermistor

N = 1.8K TAC thermistor

V = NDIR CO/VOC**

= None

Summary of content (9 pages)

PAGE 1
Installation Guide Air Quality CW2 Series CW2Txxxx CW2Lxxxx CW2Xxxxx The CW2 Series of air quality sensors for living space is a flexible multi-sensor platform for use with BAS controllers designed to accept 4 to 20mA, 0 to 5Vdc or 0 to 10Vdc outputs. CW2 Series sensors are available with three user interface options: touchscreen, LCD with three buttons and blank. CO2 and temperature sensors are included with all CW2 Series air quality sensors.
PAGE 2
CW2 Series Installation Guide Specifications (cont.) Level Ventilation Recommendation TVOC (ppb) Greatly increased >610 20 to 61% Significantly increased 200 to 610 10 to 20% Slightly increased 100 to 200 5 to 10% Average 50 to 100 0 to 5% Target value 0 to 50 AQI Table* >61% RH TRANSMITTER OPTION HS Sensor Thin-film capacitive, replaceable Accuracy ±2% from 10 to 80% RH @ 25°C (77 °F) Hysteresis 1.
PAGE 3
CW2 Series Installation Guide Dimensions 115 (4.5) 85 (3.3) 24 (0.9) Functions The CW2 Series sensor measures CO2, VOC (if equipped), RH (if equipped) and temperature in a room and provides analog outputs to a controller. Installation 1. Remove the cover from the base at the bottom of the device. 2. Position the sensor base vertically on the wall 1.35 m (4.5 ft.) above the floor with the “UP” arrow facing upward. Locate away from windows, vents and other sources of draft.
PAGE 4
CW2 Series Installation Guide Installation (cont.) 4. Mount the backplate onto the wall using the screws provided. Six screw holes available. Use a minimum of two for secure mounting. 5. Connect the wires to the screw terminals. Do not over-tighten the screws. Wiring for models with temperature transmitter:.
PAGE 5
CW2 Series Installation Guide Installation (cont.) 6. Set the DIP switches.
PAGE 6
CW2 Series Installation Guide Installation (cont.) 8. Install locking screw to secure cover in closed position. Touchscreen Operation Main Screen The touchscreen user interface displays applicable sensor output values (temperature, RH, CO2 and VOC), setpoint value, menu button and CO2 stoplight status (if enabled).
PAGE 7
CW2 Series Installation Guide Touchscreen Operation (cont.) Settings Menu Button Functions (cont.) Submenu Only This icon provides the ability to change the color scheme of the display. Temp Setpoint Adjustment Submenu Only Click this icon to access the setpoint change menu. Mutually exclusive with fan speed, set by DIP switch. Humidity Setpoint Adjustment Submenu Only Click this icon to access the setpoint change menu. Mutually exclusive with humidity and fan speed. Set by DIP switch.
PAGE 8
CW2 Series Installation Guide LCD Display Operation Button Functions Change Values Menu Advance Change Values Display Icons The main screen displays sensor values for CO2, VOC (if equipped), RH (if equipped), temperature and Celsius/Fahrenheit.
PAGE 9
CW2 Series Installation Guide Setpoint Function (cont.) Fan Speed Setpoint Adjustment Low Press the Menu Advance button Adjusts setpoint up Medium Adjusts setpoint down After adjustment, wait 6 seconds or press the Menu Advance button. Setpoint is accepted and the main screen appears. High Note: Fan speed scale flashes when in Set mode. Off setting is default.