SystemAir SAVE VTR 250/B Betriebs- Und Wartungsanleitung Seite 23

GB
Alarm name
PDM RH
PDM RH Extract air
temperature
Filter
Extra controller alarm
External stop
Manual fan stop active
Overheat temperature
Low supply air temperature
CO₂
211473 | B003
Explanation
Indicates internal relative humidity
sensor malfunction.
Active: measured humidity = 0%
Returned: measured humidity > 5%
Indicates internal extract air
temperature sensor malfunction.
Active: measured temperature = 0°C
Returned: measured temperature >
5°C
Time for filter change.
Error from external device.
Unit is stopped by external signal.
Operation stopped, fans are in
manual mode and selected as OFF.
Temperature after reheater is too
high.
Active: (Overheat temperature
sensor measures > 55°C)
Returned: (Overheat temperature
sensor measures < 50°C)
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)
External CO sensor malfunction.
2
Configuration |
Do the following
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check that sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Change the filter.
Change filter according to the
instructions in the User Manual.
Details about filter retailers can be
found in Help menu.
Check if external device is connected
properly and cable is not damaged.
Reset overheat protection on
electrical pre-heater. Contact your
installation company or place of
purchase.
Operation is stopped by digital signal
from external remote device or
signal from building management
system.
Select another speed of fans (LOW /
NORMAL / HIGH) or AUTO mode in
HMI home screen.
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.
Check the heat exchanger and re-
heater or refer to Point 2 in
"Troubleshooting" menu.
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.
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