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3062878_201707
10. Operating level 2
Filter check
FT-01
DISPLAYSELECTIONEsc BACK
Interval:
Time:
028 days
05:00
Filter monitor Thelterismonitoredforcontamination.
Forsystemswithsinglestagefans,amessageisissued(lterdirty)whenthecontact
is open. The system continues to operate.
For systems with variable speed or multi-stage fans, the fan is switched to a
predenedspeedorstageatatimethatcanbefreelyselected.Amessageis
displayed(lterdirty)if,duringthistimeorduringcontrolledoperation,thecontact
opens. After 30 s, the system continues to operate under normal control.
Ifthesystemhasstoppedatthattime,theltertestwillbecarriedoutwhenthe
system starts again (exception if a special operating mode is enabled).
Parameter Setting range Factory setting
Interval 1 - 365 days 28 days
Time 0:00 - 23:59 h 5:00 h
Fan stage 1 - 3 2 - 3
Fanspeedduringltertest 20 - 100 % 100 %
Alarm delay
Filter monitor
0 - 30 s 10 s
Frost protection
FS-01
DISPLAYSELECTIONEsc BACK
Restart
automatic
Frost protection The frost protection function prevents damage to the heater bank at low outside
temperatures. In addition to monitoring via the frost stats, the supply air is also
checked for a drop below the set value.
A parameter enables the pre-selection as to whether, following a frost protection
function, the system should restart automatically or only after the corresponding fault
message has been acknowledged.
Frost thermostat:
The frost protection function remains active as long as the contact is open. The
system shuts down if automatic restart has been selected and the frost stat
repeatedly responds within an adjustable time frame.
In any case, a fault message will be displayed and remains visible until it has been
acknowledged.
Frost protection via supply air temperature:
The frost protection function is active for an adjustable time. The system shuts
down if automatic restart has been selected and the supply air limit is not repeatedly
reached. In any case, a fault message will be displayed and remains visible until it
has been acknowledged.
The frost protection function is always active (even if the system is in standby mode).
Parameter Setting range Factory setting
Restart After
acknowledgement /
automatic
Automatic
Frost thermostat auto. restart repeats 2 - 10 5
Within 20 - 180 min 30 min
Frost prot. above vent. air temperature Yes/No No
Limits 0 - 10 °C 6.0 °C
Runtime 1 - 99 min 5 min
Frost protection above supply air
temperature, automatic restart repeats
2 - 10 5
Within 20 - 180 min 60 min