Simrad SX90 - INSTALLATION REV C - Page 35

Installationplanning
Insulation
Bulkheadsmustbeinsulatedandprovidedwithaninteriorwall
tothedeck.Theinsulationshouldbetheminimumequivalent
of50mmofrock-wool.Inaddition,pipingpassingthroughthe
spacepronetocondensationmustbeinsulated.
Ventilation
Thesonarroommustbeconnectedtothevessel’sventilation
system.Ifthisisnotpossible,two3”ventsmustbeprovided
fromthesonarroomtothemaindeck.Intheroom,theairinlet
mustwheneverpossiblebelocatedclosetothedeckandthe
outletashighaspossible.Afunnelshapeddrip-collectormustbe
mountedbelowtheventpipestodivertmoisturetothebilge.On
themaindeck,thebestventilationisprovidedwhentheoutlet
pipeisatleastfourmetershigherthantheinletpipe.Tokeep
outseawater,rainandspray,theventilationpipesshouldbe
ttedwithgoosenecksortheequivalent.Ifthevesselislikely
tooperateintropicalconditions,asuitableairconditioning
systemmustbeinstalled.Thissystemmustbeabletoprovide
anambienttemperaturenotexceedingthemaximumoperating
temperaturesforthecabinetsinstalledintheroom.
Cableprotection
Ifthecablesbetweenthesonarroomequipmentandothersystem
unitslocatedindifferentcompartmentsonthevesselpass
throughhatchesorareaswheretheymaybedamaged,theymust
berunthroughconduits(minimum2”conduitisrecommended).
Electricalinstallationsandlights
Thesonarroommustbeequippedwithsuitablelightingto
simplifytheinstallationandtoaidfuturemaintenance.A
minimumnumberofelectricaloutletsmustbeprovidedforthe
systemunitsandotherequipment.
Bilgepumpanddecking
Thesonarroommustbeconnectedtothevessel’sbilgepump
system.Ifthisisnotpossible,aseparatebilgepumpforthe
sonarroommustbeinstalled.Oncetheinstallationhasbeen
completed,thesonarroommustbesuitablydeckedwithout
restrictingaccesstotheequipment.
Liftingdevice
Anattachmentpoint,ratedataminimumoftwo-2-tons,for
supportingaliftingdeviceshouldbelocatedabovethehullunit.
Thispermanentlyinstalledxturewillfacilitateinstallation
trunkandhullunitmounting,andalsomaybeusedforfuture
equipmentmaintenanceorreplacement.
307531/C
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