SystemAir DANVENT DV10

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8—3
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Note:RailB2fitsintotherailA1,andthisofferstheadvantagethattherailB2canbeslidinsidetherailA1
toadjustthelengthofrailB2accuratelytothelengthoftheunit.Inthiswayitisnotnecessarytospend
timeand
effortcuttingtherailB2.
MountthelowerrailsC3andD4onthebacksideoftheunit.
Note:RailD4fitsintotherailC3,andthisofferstheadvantagethattherailD4canbeslidinsidetherailC3
toadjustthelengthofrailD4accurately
tothelengthoftheunit.Inthiswayitisnotnecessarytospend
timeandeffortcuttingtherailD4.
Mountverticalrail–E5‐withtheroofslopeateachendoftheunit.
MounttherailsYandZontheunitwiththecentre‐line
oftherailsexactlyoverthecentre‐lineoftheunit.
Itislongitudinalonthemiddleoftheunitstoholdthetrapezoidalroofplates.
Notice,thatrailZfitsoverthelowerrailY,andthisofferstheadvantagethattherailZcanbeslidedonthe
rail
YtoadjustthelengthofrailZaccuratelytothelengthoftheunit.Inthiswayitisnotnecessarytospent
timeandeffortoncuttingtherailZ.
Itisimportanttoplaceascrewineachhole– eventhoughthenumberofholesfor
screwsseemstobe
verylarge,ascrewineachholeisnecessaryasthestressontheroofduringstormyweatherisextremely
high.
8.1.3Roofoverhangalongthelongsidesoftheunit
Theroofplatesarelongerthanthewidthoftheunittoensuresufficientoverhangalong
thesidesofthe
unit.
Theoverhangis100mmalongeachsideofthesmallestunit–size10.
Theoverhangis150mmalongeachsideoftheunits–size15,20,25.
Theoverhangis175mmalongeachsideofthebiggestunits–including
size30.
8.1.4Calculationoftheoverhangattheendsoftheunit.Mountoverhangprofile–G1.
Theroofmustbebetween200and400mmlongerthanthelengthoftheunittosecurearoofoverhang
between100mmand200mmattheeachofthe2
endsoftheunit,andthelengthofthisoverhangmust
becalculatedbeforethefirstroofplateismounted.
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