15
Alarm name
Explanation
Do the following
Overheat temperature
Temperature after reheater is too
high.
Active: (Overheat temperature
sensor measures > 55°C)
Returned: (Overheat temperature
sensor measures < 50°C)
Alarm is possible if supply airflow is
too low when the reheater is
switched on.
Check the supply airflow.
Check that intake grille is not
blocked.
Check that shut off damper for
outdoor air is open in operation.
Contact your installation company or
place of purchase.
Low supply air temperature
Supply air temperature is too low.
Active: (Outdoor air temperature
sensor measures < 0°C)
AND
(Supply
air temperature sensor measures <
5°C)
Returned: (Supply air temperature
sensor measures > 10°C)
Check the heat exchanger and re-
heater or refer to Point 2 in
“Troubleshooting” menu.
CO
₂
External CO
2
sensor malfunction.
Check that sensor is connected
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
RH
External relative humidity sensor
malfunction.
Check that sensor is connected
properly and cable is not damaged.
In case sensor wireless – check
RS485 gateway status and sensor
status in HMI.
Contact your installation company or
place of purchase.
Output in manual mode
One or more of analogue outputs are
in manual mode.
Check Service menu for Output
settings, and check all configured
outputs to be in Auto mode. If any
outputs in Manual - change back to
Auto mode.
Alarm
Fire Alarm
can be only activated with a digital signal from a smoke/fire detection system or similar. Digital in-
put has to be configured as
Fire Alarm
for this alarm to work.
Digital output configured as
Sum Alarm
sends a generic signal every time the alarm is triggered, except for alarms
Ex-
ternal stop
,
Output in manual mode
and
Manual Fan Stop
. This signal does not specify the alarm type.
4.7.3
Week Schedule
The unit can be configured to operate at set airflow levels up to two time periods (00:00–23:59) on user
selected days.
Week Schedule
is active only during
AUTO
mode.
4.7.3.1 Schedule airflow settings
Touch settings icon to go to
SCHEDULE AIRFLOW SETTINGS
menu. In this menu set airflow level for
scheduled and unscheduled periods. Available levels:
Off
,
Low
,
Normal
,
High
or
Demand
.
Set temperature setpoint offset for both periods (-10°C – 0°C).
Demand
level is available only if
Demand Control
or
External
fan function is active.
4.7.3.2 Edit schedule
Touch icon at the bottom left corner of the screen to add a new schedule or press
EDIT
button to modify
already added schedule.
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