SystemAir SAVE VTR 200/B

Reducedairow1.Checkthedisplayforalarms.
2.Checksettingofairowinthecontrolpanel(chapter7.1.1).
3.Checkweekprogram(chapter7.7).
4.Checkifoneofthedigitalinputs1–3(DI1–3)isactiveandsettooff.This
wouldforceoneorbothfanstostopdependingonthesetup(chapter9.5).
5.Checkifautomodeisactive.Automodereducestheairowifactualvalue
fromexternalsensor/sensorsislowerthandemandcontrolset-point.
6.Checklters.Changeofltersrequired?
7.Checkdiffuser/louveropenings.Cleaningofdiffusers/louvresrequired?
8.Checkfansandheatexchangeblock.Cleaningrequired?
9.Checkifthebuildingsairintakeandroofunit(exhaust)havebeenclogged.
10.Checkvisibleductrunsfordamageand/orbuildupofdust/pollution.
Theunitcannotbe
controlled
(controlfunctionsare
stuck)
1.Resetcontrolfunctionsbypullingoutthemainpowersupplyplugfor10
seconds.
2.Checkthemodularcontactconnectionbetweenthecontrolpaneland
themainprintcard.
Lowsupplyair
temperature
1.Checkthedisplayforalarms.
2.Checksetsupplyairtemperatureinthecontrolpanel.
3.Checktheanalogueinputsintheservicemenutoverifythatthetemp
sensorsareok(chapter9.5).GotoFunctions>Analogueinput
andverifythetemperaturereadingsfromthetempsensors.
4.CheckthatHome/LeavefunctionisdisabledDI7.
5.Checkiftheoverheatprotectionistriggered:
•Forunitswithbuilt-inheater:Ifnecessary,resetbypressingthered
resetbutton.
•Forunitswithexternalheater:Forreset,seethemanualforthe
externalelectricalheater.
6.Checkifdigitalinput4(DI4)issettooff.Thiswouldforcetheelectrical
re-heaterbatterytobeswitchedoff(chapter9.5)
7.Checkiftheextractltermustbechanged.
8.Atverycoldoutdoorconditionsanelectricalpreheatingbatterymightbe
necessary.Thiscanbeacquiredasanaccessory.
9.Checkthebalancebetweenthesupplyandextractair
Noise/vibrations1.Cleanfanimpellers.
2.Checkthatthescrewsholdingthefansaretightened.
3.Checkthattheantivibrationpadsarettedatthebottomoftheunit.
SAVEVTR200/BInstallationandService
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SystemairSverigeAB