SystemAir SAVE VTR 300/B - Control, Temperature, and Noise Issues; System Alarms and Faults; Alarm List and Explanations

6.5Defrostlevelsettings
Theunitisequippedwithanautomaticdefrostfunctionthatisactivatedwhenthereisriskoficinginthe
areaaroundtheheatexchanger.Thesetting0-5(table1)determineshowaggressivethedefrostingwill
be.Defaultfactorysettingismode0.
Note:
Theheatexchangershouldwithstandlowoutdoortemperatures,butinthosecaseswhereicingcan
occurpleasebeawareofthatthedefrostsettingwillgenerateanunderpressureinthebuilding.Using
areplace,beawarethatthereisapossibleriskofsmokebeingextractedintothelivingareasdueto
underpressureifdefrostingisactivated.
Table1:Defrostlevels
Defrost
mode
Relativehumidityindoors
1
Description
0
Defrostingisturnedoff
1
Minimum<20%Dryareas,suchaswarehousebuildingswithfewpeopleor
industrialbuildingsthatdon’tusewaterintheirproduction
process.
2
Low30%-40%Ofcebuildings
3
Medium40%-60%
Apartmentsorhouseswithnormalhumidity
2
4
High60%-80%
Apartmentsorhouseswithhighhumidity
5
Extremelyhigh>80%
Buildingswithveryhighhumiditylevel.
1.Relativehumidityintheextractairatcoldoutdoortemperatures.
2.Innewlyconstructedhousesitmightbenecessarywithahigherdefrostlevelduringtherstwinterperiod.
6.5.1Settingthedefrostlevel
1.Gototheservicemenubyusingthe
SELECTIONknob.
2.Entertheservicelevelbytypingthepassword,
default1111.UsetheSELECTIONknobforeach
digitandconrmwiththeCONFIRMbuttonafter
eachsetdigitandchoose"NO"forthesystemnot
belocked.
Password
PasswordXXXX
LockedYES/NO
3.Goto:Functions
Choose:Defrosting
Functions
Defrosting
4.Setthemode,0–5
Defrosting
Mode0–5
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