SystemAir Danvent DV User Manual

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 1sensorintheoutdoorair,installedinsidetheunitbeforethesupplyairfilteronthecoldsideof
theheatexchanger
 1sensorinthesupplyairtobeplacedinthesupplyairductbytheinstaller
 1sensorintheexhaust,installedinsidethe
unit
k.6.13Dampermotors
Fourdifferenttypesofdampermotorsareavailable;
 On/offdampermotor,notmodulating,withoutspringfunction.Torqueis20Nmandruntimeis
150seconds
 On/offdampermotor,modulating,withoutspringfunction.Torqueis20Nmandruntimeis150
seconds
 Spring‐returndampermotor,not
modulating,withspringfunction.Torqueis20Nmandruntime
is150/16seconds
 Spring‐returndampermotor,modulating,withspringfunction.Torqueis20Nmandruntimeis
150/16seconds
k.6.14Filterguards
Filterguardoverpre‐filterandprimaryfilterinstalledandconnectedtothecontrollerfordisplayofalarm
whenthemechanicallysetlimitisexceeded.FilteralarmwillbedisplayedontheSystemairControlPanel.
k.6.15Roomtemperaturesensors
Oneortwoexternalroomtemperaturesensorsareavailable.Thecabinethasbeenpreparedwith
additionalterminalsforconnectionoftheroomtemperaturesensors.Thesensorsaredeliveredwithout
cable.Thecontrollercalculatesanaverageofthevaluefromthe2sensorsasinputforthecontrol.
k.6.16Frostprotection
Forthefrostprotectionoftheheatingcoil,thewatertemperatureinthecoilis transmittedtothe
controllerbyatemperaturesensorinawaterreturncircuitofthecoil.Thecontrolleralwaysgeneratesa
signaltothevalvemotorthatkeepsasufficientflowofhotwatertoprotect
thecoilagainstfrost.Thisfrost
protectionisalsoactivatedwhentherunningmodeis“off”.
Ifthewatertemperaturefallsbelowthesetpointtemperaturethefansstop,thedampersclose,andan
alarmisactivated.
FromSystemaireveryheatingcoilforhotwaterisprovidedwithalittle
pipeatthecollectionpipeforthe
returnwater.Thislittlepipeispreparedfortheinstallationoftheabovementionedtemperaturesensorfor
thetransmissionofthereturnwatertemperaturetothecontroller.
k.6.17SystemairControlPanel‐SCP
Theseparatecable‐connected(10m)handterminalwithdisplayandbuttons–theSystemairControlPanel
isalwaysnecessaryforthenormalhandlingandprogramming,becausethemainSyste mairE28controller
iswithoutdisplayandbuttons.
k.6.18Coolingrecovery
Iftheextractairtemperatureislowerthantheoutdoorairtemperature,andthereisacoolingdemandin
therooms,thecoolingrecoverywillbeactivatedbyreversingtheheatexchangersignal.Thesignalis
increasedtothecoolingrecoverybyincreasingcoolingdemand.
k.6.19Freecooling
Atemperaturesensorhasbeeninstalledinsidetheunitintheoutdoorairentrance.Iftheoutdoor
temperatureaftermidnightisbelowtheroomtemperaturesetpointandtheactualaverageroom
temperatureisabovethesetpointtemperature,thefansstartduringthesummertocooldownthe
buildingduring
nighthours.

SystemAir Danvent DV Specifications

General

Brand	SystemAir
Model	Danvent DV
Category	Air Handlers
Language	English