SystemAir SAVE VTR 300/B - Component Descriptions

9.3Componentdescriptions
9.3.1Fans
ThefanshaveexternalrotormotorsofECtypewhichcanbesteplesslycontrolledindividually20–100%.
Themotorbearingsarelifetimelubricatedandmaintenancefree.Itispossibletoremovethefansfor
cleaning,see“UserManual”formoreinformation.
9.3.2Filters
ThefactoryinstalledltersareoflterqualityF7forthesupplyairandG3fortheextractairlter.Thelters
needtobereplacedwhenpolluted.Newsetsoflterscanbeacquiredfromyourinstallerorwholesaler.
FilterqualityG3canbeinstalledforsupplyairltering.
Theltertypeislabelledonthetopofthelter
Note:
IftypeG3ltersareusedinsteadofF7,thesystemcurveforSupplyFan(SF)mustbechanged:
ForG3typelter:11–20,forF7typelter:1–10.Seechapter6.3.
9.3.3Heatexchanger
SAVEVTR300/Bisequippedwitharotatingheatexchanger.Requiredsupplyairtemperatureistherefore
normallymaintainedwithoutaddingadditionalheat.
Theheatexchangerisremovableforcleaningandmaintenance,see“UserManual”formoreinformation.
9.3.4Printcard
Themainprintcardcontrolsthefunctionsandsettemperaturesoftheunit.
Itispossibletoconnectexternalaccessoriestoterminalsontheprintcardandalsocommunicationto
BMS(BuildingManagementSystem)ModbuscommunicationviaRS-485.Seewiringdiagramformore
information.
9.3.5Temperaturesensors
Fourtemperaturesensors(NTC,10kΩat25°C)areincludedintheunitfromfactoryandpositionedinthe
correspondingairchambers.
Thesensorsareconnectedtothemainprintcard.Seewiringdiagramformoreinformation.
9.3.6ElectricalRe-heaterbattery
There-heaterbatteryispositionedinthesupplyairchamber.
There-heaterisactivatedbyarelayandswitchesonifthesupplyairtemperatureis2Klowerthantheset
pointandswitchesoffifoneormoreofthefollowingconditionsaremet:
1.Ifthesupplyairtemperatureismorethan2Kabovethesetpoint.
2.Iftheoverheatprotectionisactivatedorthesensorismalfunctioning.
3.Iftheemergencythermostatistriggeredorbroken.
4.Ifthesupplyairsensorisinerrorstate.
5.Ifthesupplyairfanisnotrunning.
6.Iftheheaterissettodisabledinthemenu.
SAVEVTR300/BInstallationandService
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SystemairAB