Samson TROVIS 5573 - 9.2 Sensor failure; 9.3 Temperature monitoring

9-2 EB 5573 EN
Malfunctions
9.2 Sensor failure
Asdescribedintheerrorlist,sensorfailuresareindicatedbydisplayingErr1errormessage
in the error level. For detailed information, exit the error level and view the different tempera-
ture values in the information level: each sensor icon displayed together with three dashes in-
stead of the measured value indicates a defective sensor. The following list explains how the
controller responds to the failure of the different sensors.
− Outdoor sensor AF1:whentheoutdoorsensorfails,thecontrollerusesaowtempera-
turesetpointof50°Corthe'Max.owtemperature'whenthemax.owtemperature
(setinPA1,2)islowerthan50°C.WiththesettingCO1,2->F05-1(underoorheat-
ing),theowtemperaturesetpointis30°Cintheeventofamalfunction.
− Flow sensor(s) in heating circuit(s):whentheowsensorsintheheatingcircuitsarede-
fective,theassociatedvalvemovesto30%travel.DHWheatingwhichusesuchasensor
to measure the charging temperature is suspended.
− Flow sensors in the DHW circuit with control valve:whentheowsensorVF4fails,the
controllerbehavesasifVF4hasnotbeencongured.Assoonasthecontrolofthe
chargingtemperature/DHWtemperaturebecomesimpossible(VF2defective),theassoci-
ated valve is closed.
− Return ow sensors RüF1/RüF2:whenthereturnowsensorfails,thecontrollercontin-
uesoperationwithoutreturnowtemperaturelimitation.
− Room sensors RF1/RF2: when the room sensor fails, the controller uses the settings for
operation without room sensor. The controller, for example switches from optimizing
mode to reduced operation. The adaptation mode is canceled. The last determined heat-
ing characteristic remains unchanged.
− Storage tank sensors SF1/SF2: when one of the two sensors fails, the storage tank is no
longer charged (exception: solar system).
− Solar circuit sensors SF, VF, RüF: when one of the two sensors fails, the storage tank in
the solar circuit is no longer charged.
9.3 Temperature monitoring
Whenasystemdeviationgreaterthan10°Cpersistsinacontrolcircuitfor30minutes,an
'Err 6' message (temperature monitoring alarm) is generated.
Functions Default Conguration
Temperature monitoring 0 CO5->F19-1