Veris CW2 Series User manual

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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 Protocol Series of air quality sensors for living space is a exible multi-sensor platform for use with BAS
controllers designed to accept BACnet or Modbus outputs. CW2 Protocol Series sensors are available with three
user interface options: touchscreen, LCD with three buttons and blank. CO2and temperature sensors are included
with all CW2 Protocol 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.
CW2 Protocol Series
Wall Mount Air Quality Sensors
Specications
OPERATING ENVIRONMENT
Input Power Class 2; 20 to 30 Vdc, 24 Vac, 50 to 60 Hz
Protocol Output BACnet or Modbus via RS-485, selectable
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)
CO2TRANSMITTER
Sensor Type Non-dispersive infrared (NDIR), diusion sampling
Output Range 0 to 2000 ppm
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)
CW2TPxxx CW2LPxxx CW2XPxxx
CW2
User Interface Output RH Accuracy* VOC Sensor
T = Color touchscreen
L = 3-button LCD display
X = None
P = BACnet/Modbus 2 = 2%
X = None
V = NDIR CO/VOC
= None
A

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CW2 Protocol Series Installation Guide
Specications (cont.) Level Ventilation Recommendation TVOC (ppb)
AQI Table* >61% Greatly increased >610
20 to 61% Signicantly 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
RH TRANSMITTER OPTION
HS Sensor Thin-lm capacitive, replaceable
Accuracy ±2% from 10 to 80% RH @ 25°C (77 °F)
Hysteresis 1.5% typical
Stability ±1% @ 20°C (68 °F) annually for 2 years
Output Range 0 to 100% RH
Temperature Coecient ±0.1% RH/°C above or below 25 °C (77 °F) typical
TEMPERATURE TRANSMITTER
Sensor Type Solid state, integrated circuit
Accuracy ±0.2 °C (±0.4 °F) typical
Resolution 0.1 °C (0.1 °F)
Range 0 to 50 °C (32 to 122 °F)
DISPLAY MODELS
Touchscreen 61 mm (2.4 in), color, backlit, capacitive, 240x300 px
Setpoint: Temperature, humidity or fan speed selectable
Timeout override: Display timeout
Lockout override: Touchscreen/button lockout
LCD 52mm (2.05 in), segmented with 3 buttons
Setpoint: Temperature, humidity or fan speed selectable
Timeout override: Display timeout
Lockout override: Touchscreen/button lockout
SETPOINTS
Temperature Setpoint Scale: 0 to 50 °C (32 to 122 °F) or 10 to 35 °C (50 to 95 °F) max., adjustable span
Humidity Setpoint Scale: 0 to 100% RH
Fan Speed Setpoint O, Low, Medium, High
OVERRIDE
Override Button Display models feature a momentary override button
WIRING TERMINALS
Terminal Blocks Screw terminals, 18-24 AWG
Screw Terminal Torque 0.2 N-m (2.0 in-lbF) max.
WARRANTY
Limited Warranty 5 years
COMPLIANCE INFORMATION
Agency Approvals UL 916, European conformance CE: EN61000-6-2,
EN61000-6-3, EN61000 Series - industrial immunity,
EN 61326-1
FCC Part 15 Class B, REACH, RoHS, RCM (Australia), ICES-003 (Canada)
* Air Quality Index for VOC aligns with TVOC levels for IAQ as specied by the WHO (World Health Organization).

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
Dimensions
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 oor with the “UP” arrow facing upward. Locate away
from windows, vents and other sources of draft. If possible, do not mount on an external wall, as this may cause inaccurate
temperature readings.
3. Pull 18 or 22 AWG cable(s) through the hole in the backplate.
Installation
Functions
115
(4.5)
85
(3.3)
24
(0.9)
The CW2 Protocol Series sensor measures CO2, VOC (if equipped), RH (if equipped) and temperature in a room and provides
protocol outputs to a controller.

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol 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.
54321
RS-485 (+)
RS-485 (-)
POWER SUPPLY 20-30 Vdc, 24 Vac
CONTROL SYSTEM
COMMON
COMMON
+
-
POWER (+24)
Congure the device.
Address Configuration:
Each device on a single network must have a unique address. Set the DIP switch labeled “ADDRESS” to assign a unique address
before the device is connected to the network. If an address is selected that conicts with another device, neither device will be
able to communicate.

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
Address the device as any whole number between and including 1 to 127. Note that zero is not a valid address for Modbus;
zero is a valid address for BACnet. Positions 1 through 7 of the “ADDRESS” DIP switch designate the address. Position 8 toggles
between the Modbus and BACnet communication protocols, as shown in the diagram below. This is the left bank of DIP
switches on the sensor.
LS
BM
SB
124816 32 64
Decimal Values
Modbus/BACnet
Toggle
On = Modbus
O = BACnet
Binary Address
To set an address using the DIP switch, simply add the values of any switches that are in the ON position.
For example, an address of 73 is set as shown in the diagram below.
73
=
LS
BM
SB
124816 32 64
Position number 1 has an ON value of 1, position number 4 has an ON value of 8 and position number 7 has an ON value of 64 (1
+ 8 + 64 = 73).
Communications Configuration:
See the Product Diagram section for the location of the DIP switch labeled “CONFIG”. The following parameters are
congurable:
- Parity (Modbus only): None, Odd, None1 (one stop bit), Even
- Baud rate: 9600, 19200, 38400, 57600 (Modbus), 76800 (BACnet)
o o
on o
o on
on on
None
Odd
None1
Even
9600
19200
38400
57600 (Modbus)
76800 (BACnet)
o o
on o
o on
on on
Parity
(Modbus Only)Baud
DIP Switches 5 to 8
are Unused
Installation (cont.)

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
Example: No Parity, 19200 Baud
1 2 3 4 5 6 7 8
o o on o o o o o
None 19200 Baud Unused
Modbus Point Map
Function Codes:
Function Code Function
03 Read holding (RW) registers
04 Read input (RO) registers
06 Write single register*
16 Write multiple registers
01 Read coils
05 Write single coil
15 Write multiple coils
* Not supported.
All of these values correspond to BACnet objects with the same name. See the BACnet Conformance Statement for their
denitions.
Note that an attempt to write to “read only” holding registers will give an error and the entire write command will not be
executed even if writing to read/write locations were also requested. Exception code 2 is given in this case. “Preserved” means
the values is maintained through power outages.
32-Bit Input Registers (Read Only):
Register Description
1 Temperature reading in IEEE 32-bit oating point
3 Humidity reading in IEEE 32-bit oating point
5 CO reading in IEEE 32-bit oating point
7 VOC reading in 32-bit integer
9 Model (numeric representation of ASCII characters)
42 Serial number (numeric representation of ASCII characters)
32-Bit Holding Registers (Read/Write):
Register Description
1 Temperature setpoint
3 Humidity setpoint
5 Screen color set
7 Device name
40 Fan speed
Note: All holding registers are preserved during power outages.
Coils (Read/Write):
Register Description
2* CO stoplight
3* Touchbutton disable
4* Invoke CO calibration
5* Temperature (°C)
6 Occupancy override
7* Touch timeout
8* Display shows humidity
9* Display shows CO level
10* Display showsVOC level
*Preserved during power outages.
Installation (cont.)

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
BACnet Descriptions
Note: In the tables below, all properties are read-only unless otherwise noted. “Preserved” means the value is maintained
through power outages.
Present_Value Range Restrictions:
Object Name Minimum Value Maximum Value
DEV - Object_Name 1 Character 65 Characters
Temperature Setpoint
Min_Pres_Value
Max_Pres_Value
Min_Pres_Value
0
Min_Pres_Value +1
Max_Pres_Value
Max_Pres_Value -1
50
Humidity Setpoint
Min_Pres_Value
Max_Pres_Value
Min_Pres_Value
0
Min_Pres_Value +1
Max_Pres_Value
Max_Pres_Value -1
100
Screen Color Set Fan Speed 1 4
Standard Object Types Supported:
Object Type Supported Optional Properties Writable Properties
Analog Input - AI Reliability None
Analog Value - AV Min_Pres_Value
Max_Pres_Value
Min_Pres_Value
Max_Pres_Value
Present_Value
BinaryValue - BV None Present Value
MultistateValue - MSV None Present Value
Device - DEV Max Info Frames
Max_Master
APDU_Timeout
Max_Master
Object_Name
Objects Table:
Object Name Object Identifier Object Property
Room Temperature AI 1 Temperature in Room
Room Humidity AI 2 Humidity in Room
CO2 Sensor AI 3 CO2Concentration
VOC Sensor AI 4 VOC Level
Temperature Setpoint* AV 1 Setpoint Value for Temperature
Humidity Setpoint* AV2 Setpoint Value for Humdidity
CO2 Stoplight* BV 1 ACTIVE enables CO2Stoplight
INACTIVE disables CO2 Stoplight
Touch Disable* BV2 ACTIVE disablesTouch Response
INACTIVE enablesTouch Response
CO2 ABC Cal* BV3 ACTIVE enables ABC Calibration
INACTIVE disables ABC Calibration
Temperature Units* BV4 ACTIVE displays temperature in Fahrenhiet
INACTIVE displays temperature in Celsius
Occupancy Override BV5 ACTIVE means room is not occupied
INACTIVE means room is occupied
Screen Timeout* BV 6 ACTIVE enables ScreenTimeout
INACTIVE disables ScreenTimeout
Display Humidity* BV7 ACTIVE displays humidity on Screen
INACTIVE removes humdity from Screen
Installation (cont.)

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
Object Name Object Identifier Object Property
Display CO2* BV8 ACTIVE displays CO2level on Screen
INACTIVE removes CO2level from Screen
Display VOC* BV9 ACTIVE displaysVOC level on Screen
INACTIVE removes VOC level from Screen
Screen Color Set* MSV 1 Selection for Screen Color Theme
Fan Speed* MSV 2 Fan Speed Selection
* Preserved during power outages.
Device Objects Table:
Object Name Object Identifier Object Property Description
Living Space Room Unit XXXXXXX Vendor_ID + nnn Object _Identifer (R/W) Unique value where nnn initially is the
MS/TP address
BACnet Protocol Implementation Conformance Statement
Vendor Name: Veris Industries
Product Name: Living Space Room Unit
Product Model: CW2XXXX
Application Software Version: LSA_APP_REV2.04.20
Firmware Revision: LSA_APP_REV2.04.20
BACnet Protocol Version : 1
BACnet Protocol Revision: 16
Product Description: Environmental Sensor
BACnet Standardized Device Prole (AnnexL):
BACnet Application Specic Controller (B-ASC)
List All BACnet Interoperatvility Building Blocks Supported(Annex K):
DS-RP-B, DS-WP-B, DM-DDB-B, DM-DOB-B, DM-DCC-B
Data Link Layer Options: MS/TP (Clause 9), baud rates, 9600, 19200, 38400, 76800
Device Address Binding: Static Device binding is not supported.
Networking Options: None
Character Sets supported: ISO 10646 (UTF-8)
6. With sensor base fully installed, align top of cover to mounting tabs on top of sensor base. Swing cover downward until it
latches at the bottom.
7. Install locking screw to secure cover in closed position.
Installation (cont.)

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
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).
Setpoint value (temperature setpoint shown)
RH value
Fahrenheit/Celsius
Temperature value
Menu button
CO2value
VOC AQI value
Menu Screen
The menu screen opens when pressing the Menu button on the main screen. Integrator’s submenu, occupancy/override,
Fahrenheit/Celsius, settings, setpoint submenu (temp, RH and fan) and CO stoplight buttons are displayed on the menu screen.
Note: RH setpoint will
not appear on non-RH
models.
Menu Button Functions
Integrator’s Submenu
Press this icon to access the
Integrator’s menu.
Submenu Only
Occupied Override Button
Press this icon to provide
momentary signal output to
the controller
Signals occupied/override
call to controller.
Single Press Only
Fahrenheit/Celsius Switch
Press this icon to display either
°C or °F.
Changes units to
Fahrenheit when pressed.
Changes units to
Celsius when pressed.
Single Press Only
ModelCW2TP2AV
Serial #4E54F3B5
2020Date code
01ARev code

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
Menu Button Functions (cont.)
Touchscreen Operation
(cont.)
Submenu Only
Submenu Only
Selected
Feature is ON
Feature is OFF
Fan Speed
Click this icon to access the fan
speed menu.
CO2Stoplight Menu
Click this icon to toggle the CO2
Stoplight feature on and o.
With CO2 Stoplight turned on,
the background color of the
main screen changes with CO2
level. This provides a visual
indicator of CO2levels to the
room occupants.
Green
CO2<1000 ppm
Yellow & Single Flag
CO2= 1000 to 1500 ppm
Red & Double Flag
CO2> 1500 ppm
Submenu Only
Submenu Only
Submenu Only
Settings
This icon provides the ability to
change the color scheme of the
display.
Temp Setpoint Adjustment
Click this icon to access the setpoint
change menu.
Humidity Setpoint Adjustment
Click this icon to access the setpoint
change menu.

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
LCD Display Operation
Setpoint Function
Button Functions
Display Icons
The main screen displays sensor values for CO, VOC (if equipped), RH (if equipped), temperature and Celsius/Fahrenheit.
The Menu Advance button cycles between Temperature, RH (if equipped), Fan Speed setpoints and Celsius/Fahrenheit adjustment
screens in order.
Temperature Setpoint Adjustment
RH Setpoint Adjustment
Change Values
Menu Advance
Change Values
Alternates between CO2and VOC
every 6 seconds
Humidity Value
(if equipped)
Temperature
Value
Override Press
Indicator
CO2Value
VOC Value
(if equipped)
Adjusts setpoint up
Adjusts setpoint down
Note: Numeric information will ash while in S
et mode.
Press the Menu
Advance button
After adjustment, wait 6 seconds or press the Menu Advance button.
Setpoint is accepted and main screen appears.
Adjusts setpoint up
Adjusts setpoint down
Press the Menu
Advance button
Note: Numeric information will ash while in S
et mode.
After adjustment, wait 6 seconds or press the Menu Advance button.
Setpoint is accepted and main screen appears.

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Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
CW2 Protocol Series Installation Guide
China RoHS
Compliance
Information
本表格依据SJ/T11364的规定编制。
O: 表示该有害物质在该部件所有均质材料中的含量均在GB/T 26572规定的限量要求以下。
X: 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572规定的限量要求。
（企业可在此处，根据实际情况对上表中打 的技术原因进行进一步说明。）
This table is made according to SJ/T 11364.
O: indicates that the concentraon of hazardous substance in all of the homogeneous materials
for this part is below the limit as spulated in GB/T 26572.
X: indicates that concentraon of hazardous substance in at least one of the homogeneous
X O O O O O
materials used for this part is above the limit as spulated in GB/T 26572
Z000057-0B
部件名称
Part Name
有害物质-Hazardous Substances
铅(Pb) 汞(Hg) 镉(Cd) 六价铬(Cr (VI)) 多溴联苯 (PBB) 多溴二苯醚(PBDE)
电子件
Electronic
Environment-Friendly Use Period (EFUP) Table
Fan Speed Setpoint Adjustment
Changing Celsius and Fahrenheit Scales
The Menu Advance button cycles between Temperature, RH (if equipped), Fan Speed setpoints and Celsius/Fahrenheit adjustment
screens in order.
Setpoint Function
(cont.)
Occupied/Override Button
Adjusts setpoint up
Adjusts setpoint down
Press the Menu
Advance button
After adjustment, wait
6 seconds or press the
Menu Advance button.
Setpoint is accepted and
the main screen appears.
Low
Medium
High
Note: F
an speed scale ashes when in Set mode. O setting is default.
Press and hold the Menu
Advance button for 1
second
Override Press Indicator illuminates for 6 seconds.
Adjusts from ºF to ºC
Adjusts from ºC to ºF
After adjustment, wait 6 seconds or press
the Menu Advance button to return to the main screen.
Note: ºF or ºC te
xt will ash while in Set mode.
Press the Menu
Advance button