Honeywell Air Alert 96d User Manual page 98

Requirement: Section 120.6(c)7Eiii "The CO sensor shall be moni‐
tored by a control system. During occupied periods the system com‐
pares the readings of sensors in the same proximity zone, e.g. if
the 30 minute rolling average for any sensor in a proximity zone is
more than 15 ppm above or below the 30 minute rolling average for
other sensor(s) in that proximity zone, the sensor has failed."
Solution: Create an event to activate if the concentration reading of
any sensor in a group is an outlier deviating by 15 ppm for longer than
30 minutes.
Requirement: Section 120.6(c)7Eii "The CO sensor shall be monitored
by a control system. During unoccupied periods the system compares
the readings of all sensors, e.g. if any sensor is more than 15 ppm
above or below the average of all sensors for longer than 4 hours, the
sensor has failed."
Solution: Configure an event to activate if the concentration reading
of any sensor in a group is an outlier deviating by 15 ppm for longer
than 4 hours.
Note that this requirement is less strict that Section 120.6(c)7Eiii
above because the aberrant reading is allowed to persist longer. Thus
this requirement is only meaningful for garages that are rarely occu‐
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