Andover Controls Infinity Manual page 108

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If Zone4.ALM then
Zone4.SMK = On
Else
If STRWL.ALM then
STRWL.SMK = On
Endif
Endif
Endif
Endif
Endif
Return
File Explanation:
This function sets the ".ALM" numerics for the FSCS Alarm LEDs and
the ".SMK" numerics that cause the system to begin performing smoke
control in a particular zone.
The sequence of operations are as follows:
• Set all Alarm LED numerics to OFF. Turn the Alarm LED numeric
back ON if the Fire Panel shows that zone to be in an Alarm condition.
Since this is a function, only the final value of the numeric will be
used by the CX9200.
• If there are any alarms, turn the SMOKE.ALM numeric ON, which
prevents the system from running a weekly self-test, and Stop the
weekly self-test if it is currently running.
• Clear the Smoke Control numeric (".SMK"), if the Alarm (".ALM")
goes away. Therefore there is no need to reset the Infinity smoke
control system. When the Alarm is cleared at the Fire Panel, it also
resets the smoke control system.
• If any one of the Smoke Control numerics (".SMK") is ON, set the
numeric FIRST.SMK to ON. If FIRST.SMK is ON, then the system
is already performing smoke control in a zone, and the function ends
due to the RETURN statement. NFPA 92A requires that the system
only respond to the first alarm.
• If FIRST.SMK is OFF, then the function checks to see if any of the
".ALM" numerics are ON. If so, then the corresponding ".SMK"
numeric is turned ON, thus starting a smoke control strategy in that
zone. Since this is performed using one "If-Then-Else" statement,
the function will only react to the first Alarm, per NFPA 92A.
5-32
Smoke Control Programs
Infinity Smoke Control Guide
TOC