SystemAir Danvent DV

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Bilag8—2
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8.2Mountrails.Unitsofsize10,15,20,and25
SqueezesealantinsufficientquantitybetweentheundersideoftherailsA1,B2,C3,D4,E5andthe
horizontaltopsideoftheunitbeforetherailsaremounted.Thismeansthattherailsarestandingon
sealanttoachievethetightestconnectionbetweenrailsandunittopreventrainwaterfrom
passingunder
therailsandintotheunit.MounttherailsA1andB2onthefrontside(thesidewiththeinspectiondoors)–
usethesimpleself‐drillingscrewswithoutthes ealingwasher–seetheillustrationofthescrewbelow.
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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oncuttingtherailD4.
Mountverticalrail–E5‐withtheroofslopeateachendoftheunit
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stre ssontheroofduringstormyweatherisextremely
high.
8.3Mountrails.Unitsofsize30andunitslargerthansize30.
Onunitsofsize30andonunitsthatarelargerthansize30,railsA1,B2,C3,D4,E5mustbemountedonthe
unitforsupportoftrapezoidalroofplates,butalsorailsYandZmustbemountedlongitudinallyatthe
centre‐lineoftheunitstohold
thetrapezoidalroofplates.
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SqueezesealantinsufficientquantitybetweentheundersideoftherailsA1,B2,C3,D4,E5andthe
horizontaltopsideoftheunitbeforetherailsaremounted.Thismeansthattherailsarestandingon
sealanttoachievethetightestconnectionbetweenrailsand
unittopreventrainwaterfrompassingunder