Distech Controls GS-CDR20K Series Hardware Installation Manual

GS-CDR20K Series
Room Carbon Dioxide Detectors
Product Description
The GS-CDR20K Series are room carbon dioxide gas detectors.
These devices provide precision measurement of CO
CDR20K series uses a highly accurate and reliable Non-dispersive
Infrared (NDIR) sensor combined
linearization and temperature compensated circuitry in an attractive,
low profile enclosure for room applications to monitor room CO
levels.
A linear analog signal output of 4-20 mA, 0-5 or 0-10 Vdc is provided
for connection to a building automation system. Optional features such
as temperature sensor, setpoint adjustment, manual override and
adjustable relay output are available.
General Installation Requirements
For proper installation and subsequent operation of each device, pay
special attention to the following recommendations:
-
Upon unpacking the product, inspect the contents of the carton for
shipping damages. Do not install damaged device.
-
Avoid areas where corroding, deteriorating or explosive vapors,
fumes or gases may be present.
-
Ensure that all equipment is installed according to local, regional,
and national regulations.
Personal injury or loss of life may occur if you do not follow a
procedure as specified.
Equipment damage or loss of data may occur if you do not
follow a procedure as specified.
Figure 1: GS-CDR20K Series Room Carbon Dioxide Detectors
gas. The GS-
2
with state-of-the-art digital
,
2
H a r d w a r e I n s t a l l a t i o n G u i d e
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 reasonable precautions to prevent electrostatic
discharges to the controller when installing, servicing or
operating the controller. Discharge accumulated static
electricity by touching one's hand to a well-grounded object
before working with the controller.
Mounting Instructions
The room type sensor 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 air disturbances. Avoid areas where the
detector is exposed to vibrations or rapid temperature changes.
The cover is hooked to the base at the top edge and must be removed
from the bottom edge first. Use a small screwdriver to carefully pry
each bottom corner if necessary. If a security screw is installed on the
bottom edge, then it may have to be loosened or removed also. Tip the
cover away from the base and set it aside.
The PCB must be removed from the base to access the mounting
holes. Follow usual 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. Set the PCB aside until the base is
mounted on the wall.