NuAire LabGard NU-581-400E, Operation And Maintenance Manual

Page: 21 / 108

OM0303
Rev 5 July/2021
Page 21 of 108
6.1.4 Night Setback/ Nite Care Mode
The NU-581E may be optionally configured to allow the DC ECM motor to continue to run at a lower rate with the
sliding window closed allowing the workzone interior to be continually HEPA filtered. If the night setback mode is
configured, the blower icon must be on and the window closed for it to be activated. In addition, the LED light will
be disabled. If the sliding window is then opened the cabinet will resume normal airflow setpoints in run mode.
6.1.5 Standby/Run Mode Alarms
If present standby/run mode alarms will be both visual and audible, the Red LED oval under the LCD display will
turn on, and the
TOUCHLINK LCD screen will also display a description of the alarm. Audible alarms can be silenced
or will produce an alarm tone for 10 seconds, then into a ring back cycle of once every 2 seconds. Pressing the
alarm silence icon will silence the audible alarm for 15 minutes then into a ring back cycle of once every 2 seconds
Alarm Types
The middle of the display just below the icons is the message area that will indicate alarms, errors or other notable
conditions. Since the message area is limited to one line of text, only the highest priority message will be
indicated. However, for alarm conditions, also displayed is a caution symbol and pressing it will display all present
alarm conditions. The list below represents the highest to lowest priority.
•
Runtime Failure
•
Power Loss Alert
•
Downflow Sensor Error
•
Inflow Sensor Error
•
Exhaust Sensor Error
•
Downflow Sensor Communication
•
Inflow Sensor Communication
•
Exhaust Sensor Communication
•
Downflow Low Limit
•
Downflow High Limit
•
Inflow Low Limit
•
Inflow High Limit
•
Exhaust Low Limit
•
Exhaust High Limit
•
Cabinet Pressure Low
•
Window High
•
Window Low
•
Replace Filter
•
Replace UV Lamp
•
Recertification Past Due
•
Recertification Due In (x) Week(s)