senva CHTWL Series Installation Instructions

INSTALLATION INSTRUCTIONS
CHTWL Series
Room CO2/RH/T combo sensor

IMPORTANT WARNINGS

• Only qualified trade installers should install this product
• This product is not intended for life-safety applications
• Do not install in hazardous or classified locations
• The installer is responsible for all applicable codes
• De-energize power supply prior to installation or service

INSTALLATION

j
IMPORTANT! Locate sensor in an area away from ventillation
sources and heat generating equipment and appliances.
Sensor should be mounted at light switch height in a vertical
orientation. Use insulating material behind sensor to ensure
reading accuracy.
NOTE: Do not install sensor in multi-gang electrical boxes with
line voltage or other electrical devices.
GOOD
LOCATION
EQUIPMENT OR DOORWAY
COPIER
GOOD
LOCATION

PRODUCT APPLICATION LIMITATION:

Senva products are not designed for life or safety applications. Senva products
are not intended for use in critical applications such as nuclear facilities, human
implantable device or life support. Senva is not liable, in whole or in part, for
any claims or damages arising from such uses.
senvainc.com 1-866-660-8864 (F)1-503-296-2529 9290 SW Nimbus Ave. Beaverton Oregon 97008
OUTSIDE
WALL OR WINDOW
TOO HOT/COLD
INSIDE WALL
TOO HOT/COLD
TOO NEAR
COMPUTER
ROOM
GOOD
LOCATION
INSTALLATION (CONTINUED)
k
Wire sensor according to the product labeling.
l
Install sensor to wall or j-box using screws provided.
m
Move jumper to select 5v or 10v.
REPLACEABLE
CO2 SENSOR
MODULE
SETPOINT

RELAY
TO ENTER SETUP MODE:
 
WIPER
RH/T SENSOR
n
Apply power to sensor to complete optional setup
functions:
HOLD qANDp FOR 5-SECONDS TO ENTER SETUP MENU.
PRESS q OR p TO CHOOSE PARAMETER TO ADJUST.
SPH Setpoint, Hi (Closed above this level)
Setpoint, Lo (Open below this level)
SPL
SCL Scaling "2" = 2000ppm, "5" = 5000ppm
ADJ Manual calibration adjustment +/-250ppm
Automatic calibration - ON/OFF/RST (reset)
CAL
FoC Temperature units
o
Exit setup mode - display actual CO2 ppm
RUN
PRESS SELECT TO EDIT SELECTED PARAMETER
PRESS q OR p TO CHANGE VALUE
PRESS SELECT TO RETURN TO PARAMETER MENU
WHEN SETUP IS COMPLETE, SELECT
MODE TO AUTOMATICALLY TIME-OUT AND REVERT TO RUN
MODE.
o
Install cover to back plate by engaging hinge at top first,
then gently rocking bottom end closed. Optionally secure with
screw provided. Snap in desired bezel to conceal or reveal LCD.
0-10V
0-5V
1 0 0 0
PPM
SEL

+
HOLD AND  5-SEC
THERMISTOR/
OVERRIDE
TH
(OPTION)
TH
MAX
SLIDE POT
(OPTION)
MIN
F or C
o
RUN , OR WAIT FOR SETUP