© 2018 OJ Electronics A/S
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INSTRUCTIONS Commissioning guide for AHC-3000
21.5 Scheduled operation exceptions
Setting exceptions
You may now configure the exceptions from the normal operating pattern.
It is possible to make three different exception rules and each exception rule can be used in up to 10
different periods.
This exception function may be used to make periods where the AHU must operate differently from
the daily programmed schedule.
In the following example we will describe how to create an exception which is active when you want
to stop the AHU during national holidays and other extraordinary closing days. Days that are an
exception from the normal operation schedule. Days the building is closed and empty.
During these closing days, the AHU will “keep an eye” on the room or building and start up if
necessary, e.g. if the room temperature exceeds the summer night cooling setpoint.
(*1): Select “Exceptions”.
(*2): Select “Exception 1”.
(*3): Press “+ Add event” to create the first event.
In this exception we will create a stop event so we will only need one event.
In this case the stop event is selected as “fall-back speed”
The fall-back speed is set under ”Properties”
(index 21.2 in this guide)
(*4): If more events are needed, it is possible to create more events – repeat: (*3)
On the next page, we will select the period that this exception will be active.
(*1)
(*2)
(*3)
(*4)