SystemAir SAVE VTR 300/B - Ext;Force Run; Extra Functions

6.7Ext/Forcerun
Itispossibletoprogramextendedtimeyouwanttheunittoworkunderoperationconditionsotherthan
determinedbytheweekschedule.
1.Gototheservicemenubyusingthe
SELECTIONknob.
2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.
Password
PasswordXXXX
LockedYES/NO
3.Goto:Ext/ForceRun
Service
Ext/ForceRun
4.Setthetimeinminutestheunitistorunin
extended/forcedrunningmode.Valuerange:
0–240minutes.
Setthefanspeedforthismode.Choosebetween
Low,NomorHigh.
Defaultvalue:Nom.
Ext/ForceRun
Minutes:0
Fanspeed:Nominal
6.8Extrafunctions
Theunitisequippedwithanumberofextraon/offfunctionswhichcanbeactivatedfromexternalon/off
switchesthatcanbeconnectedtothedigitalinputsonthemainprintcard(seewiringdiagram).
Thefollowingpossibilitiesareavailable:
•Digitalinputs1–3:Byconnectingon/offswitchestotheseinputsit’spossibletochoose3individual
fanspeedsettingsinthecontrolpaneldependingonatemporaryneedforthebuilding(forexample
loweringtheextractairfanspeedwhenanopenreplaceisused).Seechapter8.5.
DI3,ispreparedandalreadyconnectedinternallyforeasyaccessontheunit.Seechapter6.10.
•Digitalinput4:Makesitpossibletodisabletheintegratedelectricalre-heater
Activatedinputmeansthattheelectricalre-heaterisdisabled.
•Digitalinput5:ActivatetheExtended/forcedrunningfunctionwitharetractiveswitch.Thefunction
overridescurrentfanspeedsettingsandrunsinforcedmodeaccordingtothesettingsinService->
Ext/Forcerun.ChoosebetweenLow,NomandHighforthisfunction.
Theinputiscalculatedbasedonthesignalsfromanimpulse-switch.Ifastandardswitchisused,the
countdownofthesettimestartswhentheswitchisswitchedoff.
•Digitalinput7:Home/leave,switchingonthisinputdecreasestheset-pointforsupplyair-tempwith
10°C.Thisfunctionisusedwhenthebuildingisuninhabitedforalongerperiod.Thisfunctionis
howevernotworkingiftheunithasbeenconguredtooperatewithahotwaterheater.
ItisrecommendedtoconnecteitherofDI1,DI2orDI3inparallelwithDI7.IfDI7isactivated,setthe
fansspeedtomin.FanspeedsettingsaredonewhenconguringDI1,DI2orDI3.
Seemenuoptionsin“ServicemenuOverview”(chapter8.5).
SAVEVTR300/BInstallationandService
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SystemairAB