Andover Controls Infinity User Manual

Smoke Control Programs
5-59 Infinity Smoke Control Guide
TOC
‘ Return’ Air Damper
If INFINITY1 AH2RADmp.OVR.Opn then
RADmp = On
Else
If INFINITY1 AH2RADmp.OVR.Cls then
RADmp = -On
Else
If INFINITY1 Zone2.EXH or INFINITY1 Zone3.EXH or ~
INFINITY1 Zone4.EXH then
RADmp = -On ‘Close on any exhaust
Else
If INFINITY1 Zone2.PRS or INFINITY1 Zone3.PRS or ~
INFINITY1 Zone4.PRS then
RADmp = -On ‘ Close on any pressurization
Else
If INFINITY1 Zone2.SMK or INFINITY1 Zone3.SMK or ~
INFINITY1 Zone4.SMK then
RADmp = -On ‘ Close on any smoke detected
Else
If INFINITY1 Zone1.SMK or INFINITY1 STRWL.SMK ~
then
RADmp = -On ‘ Adjacent zone smoke detected
Else
RADmp = DefaultDmpr.RA Normal HVAC Control
Endif
Endif
Endif
Endif
Endif
Endif
‘Call Override Check Function
OVR_Check
Goto FanControl
File Explanation:
This program controls the state of the Supply fan, Return fan, Outside
Air damper, Exhaust Air damper, and Return Air damper for AHU2.
Each fan or damper is controlled by it’s own set of nested “if-then-else”
statements. The nested “if-then-else” statements prioritize the control
modes as follows:
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Andover Controls Infinity Specifications

General

Brand	Andover Controls
Model	Infinity
Category	Controller
Language	English