Andover Controls Infinity - Page 122

Smoke Control Programs
5-46 Infinity Smoke Control Guide
TOC
STRWL.SMK then
Fl4.RASDmp = On
Else
Fl4.RASDmp = DefaultDmprPosn
Endif
Endif
Endif
Endif
Endif
Endif
‘Call Override Check Function
OVR_Check()
Goto DamperControl
File Explanation:
This program controls the state of all six of the smoke dampers in this
example --> supply and return dampers for floor2, floor3, and floor4.
Each damper is controlled by it’s own set of nested “if-then-else”
statements. The “level” that the statement appears on determines the
priority of for that action. The FSCS overrides must have the highest
priority, then come the automatic smoke control modes, and the HVAC
or self-test modes have the lowest priority.
Take the Floor2 Supply Air Damper portion of the code as an example:
‘ Floor (Zone) 2 Smoke Damper Control
‘ Supply Air Damper
If INFINITY1 FL2SADmp.OVR.Cls then
Fl2.SASDmp = On
Else
If INFINITY1 FL2SADmp.OVR.Opn then
Fl2.SASDmp = Off
Else
If INFINITY1 Zone2.EXH then
Fl2.SASDmp = On
Else
If INFINITY1 Zone2.PRS then
Fl2.SASDmp = Off
Else
If INFINITY1 Zone2.SMK then
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