Armstrong Monitoring AMC-1222, Instructions Manual

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AMC-1222 CO/NO
2
Multidrop
10
4 INSTALLATION
This section relates to the proper installation of the AMC-1222 module. The topics of proper
location, sensor wiring selection, and multi-unit interconnection are all discussed in detail.
4.1 LOCATION AND MOUNTING
Mount the sensor module on a solid, non-vibrating surface or structure, easily accessible for
status checking and calibration. The module must be mounted in an area where the local
concentration of gas is unaffected by the presence of ventilation systems. Mounting height of
modules must be in compliance with local legislations and regulations.
4.1.1 MOUNTING
1. Remove cover and mounting bracket with transmitter.
2. Mount housing using defines mounting holes. See
Figure 4-1
or
Figure 4-2
.
3. Drill holes for conduit and then install conduit. See Warning below.
4. Reattach cover and bracket.
Warning:
Conduit should enter the housing from the bottom to ensure best protection against
ingress of condensation.
Conduit entry from the top from the top of the housing is Not Recommended, and will
Void the Warranty. However, if conduit entry through the top is the only available
option, a Condensation Drip Shield is provided to help protect the electronics from
water ingress due to condensation from the EMT conduit. If conduit entry is through
the top of the housing, a drain hole must be drilled into the bottom side of the housing
to allow the condensation to exit the housing.
Note:
Mounting arrangement of the housing depends on the location and mounting surface.
Mounting hardware is NOT supplied.