SystemAir SAVE VTR 300/B - Page 39

Lowsupplyair
temperature
1.Checkthedisplayforalarms.
2.Checksetsupplyairtemperatureinthecontrolpanel.
3.Checktheanalogueinputsintheservicemenutoverifythatthetemp
sensorsareok(chapter8.5).GotoFunctions>Analogueinput
andverifythetemperaturereadingsfromthetempsensors.
4.Checkiftheoverheatprotectionthermostatisstillalert.Ifnecessary,
resetbypressingtheresetbutton.Seechapter9.3.7.
5.Checkifdigitalinput4(DI4)issettooff.Thiswouldforcetheelectrical
re-heaterbatterytobeswitchedoff(chapter8.5)
6.Checkiftheextractltermustbechanged.
7.Atverycoldoutdoorconditionsanelectricalpreheatingbatterymightbe
necessary.Thiscanbeacquiredasanaccessory.
Atverycoldoutdoorconditionsanelectricalpreheatingbatterymightbe
necessary.Thiscanbeacquiredasanaccessory.
8.Checkthebalancebetweenthesupplyandextractair
Noise/vibrations1.Cleanfanimpellers.
2.Checkthatthescrewsholdingthefansaretightened.
3.Checkthattheantivibrationpadsarettedatthebottomoftheunit.
9.4.1Alarmlist
AlarmExplanation
Dothefollowing
FanIndicateserroroneithersupplyor
extractairfan.
Thealarmisdisplayedinthecontrolpanel.
Checkthatquickconnectorsareconnectedforthe
bothfans.
Contactyourinstallationcompanyorplaceof
purchase.
EMT/FrostIndicatestriggeredfrostprotection
(incaseofinstalledwaterheating
battery)ortriggeredoverheat
protection(incaseofinstalled
electricre-heaterbattery).
Atriggeredfrostprotectionalarmresultsinthe
following:
•Bothfansstop.
•Outdoorandexhaustairdampersclosed.
•Watervalveopenscompletely(10Vsignalgoes
outtotheactuator).
Theunitwillrestartoncethewatertemperature
reaches+5°Cabovethesetfrostprotection
temperature.
Atriggeredoverheatprotectiongivesanalarminthe
controlpanel.
Resetbypushingtheresetbutton.Seechapter9.3.7.
Iftheproblemcontinuescontactyourinstallation
companyorplaceofpurchase.
SAVEVTR300/BInstallationandService
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37
SystemairAB