Installation
Mounting the Control Panel
The control panel is the central hub for monitoring and controlling all of the transmitters.
However, it does not necessarily need to be mounted in a centralized location. It should be
mounted indoors in a dry location where authorized users will have easy access and the
display can be easily read. Avoid placing the control panel in areas that might need to be
evacuated during a high-gas alarm condition.
The control panel is attached in the mounting position in one of two ways.
•
Attach the housing to a four inch conduit box using standard ½” conduit fittings. If you
use this method, make sure that the four inch box is securely attached with screws to a
solid support base. Firmly tighten the threaded nuts on the conduit fittings so they will
not loosen over time.
•
Attach the housing to a solid support base using screws through the holes in the
mounting feet.
Find a flat area at least 8 inches wide by 11 inches tall and place the back of the
housing flat against it. Using a pencil or other slender marking tool, mark the location of
the four mounting holes using the housing as a template. Start the screws without the
housing in place to avoid any possibility of damage to the housing. Remove the screws,
place the housing in position, and install the mounting screws. Do not over-tighten the
screws as this may crack the plastic housing.
Mounting the Transmitters
The ability of the transmitters to sense the target gas and efficiently control the ventilation
system depends greatly upon proper selection of the mounting location. A transmitter monitors
the area around it by sampling the air that passes by the sensor. Since the sensor is mounted
inside a housing, air must diffuse through the intake vents and pass by the sensor on its way
out the exhaust vents. Therefore, the transmitter should be positioned where it can sample air
that contains a target gas concentration representative of the average value in that area.
When determining the mounting location, give special consideration to the following guidelines.
•
Use one sensor per target gas for each area to be covered.
•
Always prioritize locations with the highest occupation density.
IOM03
Rev 1.1 – May 18, 2021
13
