SystemAir SAVE VTR 300/B - Heat Exchanger and Fan Servicing

6.2.2PerformFactoryreset
Howtoperformafactoryresetifnecessary:
1.Entertheservicemenubyselectingtheservice
symbolinthedisplayandpressENTER.
2.Gotopasswordandenterthepassword,
default1111
UsetheSELECTIONknobforeachdigitand
ENTERwiththeENTERbuttonaftereachsetdigit
andchooseNOforthesystemnotbelocked.
Password
PasswordXXXX
LockedYES/NO
3.GotoFunctionsandselectFactoryReset
Functions
Factoryreset
4.TurntheSELECTIONknobsoYESisshown
andpressENTER.
Factoryreset
Reallyreset?YES/NO
5.ACCEPTEDisshowninthedisplaywindow
ACCEPTED
6.TheStartupWizardstartsafterapproximately
10seconds
6.3Systemcurves
Asystemrequiresdifferentpressuresatdifferentairows,whichcanberepresentedbyasystemcurve.
Theintersectionbetweenthesystemlineandthefancurve,istheunit'sworkingpoint.Itisshowingthe
airowthesystemisgoingtohave.Everychangeinthepressureoftheventilationsystem,willgive
risetoanewsystemcurve.
TheK-factorisaconstantthatisthesamethroughoutoneandthesamesystemcurve.IftheK-factorand
thesystempressureisknown,theairowcanbecalculated.Iftherealpressuredropinthesystemis
largerorsmallerthancalculated,theworkingpointandtheairowwillbedifferentthanexpected.
SAVEVTR300/BInstallationandService
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SystemairAB