Contact: AIRSYS North America Phone: (855) 874-5380 Page 32 of 112
Email: ASNSupport@air-sys.com Web: http://airsysnorthamerica.com Rev 1.15
Dirty Filter Alarm Output
This alarm will trigger when the filter of any unit connected to the controller is dirty and needs
replacement. The alarm can be wired as either NO or NC. The default output setting is Normally Closed
(NC), which can be changed to Normally Open (NO) in the “Alarms” menu under the Control Config
Menu.
Input Alarms
Input Alarms are used to inform the ASMUC of an alarm that is present in the building and make the
ASMUC behave accordingly.
Note: all inputs must be dry contact signals.
Smoke/Fire Alarm Input
This alarm input informs the controller that the smoke/fire detector has been triggered. All components
will immediately shut down and outside air damper will fully close until alarm condition is removed. The
default setting is Normally Closed (NC), which can be changed to Normally Open (NO) in the “Alarms”
menu under the Control Config Menu.
This alarm input must be wired to an isolated output or a relay. Piggybacking with other devices may
cause a false alarm.
Note: this is an input only and will not work as an output to a remote monitoring station.
Generator Run Input
This alarm input informs the controller that the generator is running. Outside air damper will fully close to
prevent diesel fumes from entering the building and only one HVAC will be permitted to run at a time to
minimize generator load. The default setting is Normally Open (NO), which can be changed to Normally
Closed (NC) in the “Alarms” menu under the Control Config Menu.
AL*07 (Generator Run) will display if this input is triggered.
Optional: Enable the multiple compressors during generator run in the “Generator Run” section of the
Unit Config menu.
DC Fail-Over Input
This alarm is only applicable when the DC Fail-Over is installed. This alarm input informs the controller
that power is only available through the DC inverter, so the controller will only run the supply fan and
outdoor air damper.
Hydrogen Alarm Input
This alarm input informs the controller that the hydrogen detector has been triggered. HVAC unit will
open outside air damper fully and run fans at high speed to ventilate the room. The default setting is
Normally Open (NO), which can be changed to Normally Closed (NC) in the “Alarms” menu under the
Control Config Menu.
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