Danfoss ECL Comfort 310

Optimization
Thecontrolleroptimizesthestarttimeofthescheduled
temperatureperiods.Basedontheoutdoortemperature,the
controllerautomaticallycalculateswhentostartinordertoreach
thecomforttemperatureatthesettime.Thelowertheoutdoor
temperature,theearlierthestarttime.
Outdoortemperaturetrend
Thearrowindicatesthetendency,i.e.whetherthetemperature
risesorfalls.
Overridemode
WhenECLComfortisinScheduledmode,aswitchorcontact
signalcanbeappliedtoaninputinordertooverridetoComfort,
Saving,FrostprotectionorConstanttemperature.Aslongasthe
switchorcontactsignalisapplied,theoverrideisactive.
Pt1000sensor
AllsensorsusedwiththeECLComfortcontrollerarebasedonthe
Pt1000type(IEC751B).Theresistanceis1000ohmat0°Candit
changeswith3.9ohm/degree.
Pumpcontrol
Onecirculationpumpisworkingandtheotheristhespare
circulationpump.Afterasettime,therolesareexchanged.
Refillwaterfunction
Ifthemeasuredpressureintheheatingsystemistoolow(e.g.
duetoaleakage),watercanbesupplemented.
Returntemperature
Thetemperaturemeasuredinthereturninfluencesthedesired
flowtemperature.
Roomtemperature
Temperaturemeasuredbytheroomtemperaturesensoror
theRemoteControlUnit.Theroomtemperaturecanonlybe
controlleddirectlyifasensorisinstalled.Theroomtemperature
influencesthedesiredflowtemperature.
Roomtemperaturesensor
Temperaturesensorplacedintheroom(referenceroom,typically
thelivingroom)wherethetemperatureistobecontrolled.
Savingtemperature
Temperaturemaintainedintheheating/DHWcircuitduring
savingtemperatureperiods.Typically,theSavingtemperatureis
lowerthantheComforttemperatureinordertosaveenergy.
SCADA
S
upervisoryControlAndDataAcquisition.Asupervisorysystem
forremotecontrolandmonitoring.
Schedule
Scheduleforperiodswithcomfortandsavingtemperatures.The
schedulecanbemadeindividuallyforeachweekdayandmay
consistofupto3comfortperiodsperday.
Software
isusedintheECLComfortcontrollertodotheapplicationrelated
processes.
Weathercompensation
Flowtemperaturecontrolbasedontheoutdoortemperature.
Thecontrolisrelatedtoauser-definedheatcurve.
2-pointcontrol
ON/OFFcontrol,e.g.circulationpump,ON/OFFvalve,
change-overvalveordampercontrol.
3-pointcontrol
Opening,closingornoactionoftheactuatorforthemotorized
controlvalve.Noactionmeansthattheactuatorremainsinits
currentposition.
VI.GU.L2.02
©Danfoss|2017.09|191
OperatingGuideECLComfort210/296/310,applicationA275/A375