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INTRODUCTION
The CO2 transmitter uses Infrared Technology to monitor CO2 levels
and outputs a linear 4-20 mA or 0-5/0-10 Vdc signal. Options include an
LCD, control relay, override switch, slide pot setpoint control and
resistive temperature sensor. Features include a back-lit LCD and user
menu for easy installation.
Standard features include a field selectable output signal of either
4-20 mA, 0-5 Vdc or 0-10 Vdc for the highest versatility, programmable
CO
2
measurement span, a backlit alpha-numeric LCD and easy menu
operation for configuration.
Optional features include a resistive temperature sensor output a
control relay with programmable setpoint, hysteresis and time delay,
and a dry-contact override switch.
BEFORE INSTALLATION
Read these instructions carefully before installing and commissioning the device. Failure to follow these
instructions may result in product damage. Do not use in an explosive or hazardous environment, with
combustible or flammable gases, as a safety or emergency stop device or in any other application where
failure of the product could result in personal injury. Take electrostatic discharge precautions during
installation. De-energize the power supply prior to installation, this device is intended for indoor air
conditioned spaces, contact factory for other applications.
Do not exceed device ratings. This product
is not intended for life-safety applications.
MOUNTING
The transmitter installs directly on a standard electrical box and should be mounted five feet from the
floor of the area to be controlled.
Do not mount the sensor near
doors, opening windows, supply air diffusers or other known
disturbances. Avoid areas where the detector is exposed to
vibrations or rapid temperature changes.
Prevent measurement
errors by sealing the wall or conduit openings to prevent air migration
from the wall cavity.
The cover is hooked to the base at the top edge and must be removed
from the bottom edge first. Use a small Phillips screwdriver to loosen
the security screw as shown in Figure 1. Complete removal of the
screw is not required. Use the screwdriver to carefully pry each bottom
corner if necessary. Tip the cover away from the base and sit it aside as
shown in Figure 2.
The PCB must be removed from the base to access the mounting
holes.
Follow anti-static procedures when handling the PCB and
be careful not to touch the sensors.
The PCB is removed by pressing the enclosure base to unsnap the
latch near the bottom edge, then the PCB can be lifted out of the base
as shown in Figure 3.
Sit the PCB aside until the base is mounted on the wall. For added
protection, place the PCB in the supplied anti-static bag.
Figure 1
Figure 2
Figure 4
Figure 3
Cover
PCB
Backplate
IN-GE-CDD4B1XXX-01 05/20
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
Room Carbon Dioxide Transmitter
CDD4B1 Series - Installation Instructions
