Maintenance.-.Bulkhead.and.deck.integrity; Maintenance.-.Air.conditioning.systems; Maintenance.-.Liquid.drains - Four winns 348 vista Owner's Manual

5.. Eliminating.sags.in.ducting.that.can.form..
a.water.trap
6.. Checking.hangers.and.other.supports
7.. Ensuring.blower/fan.is.operational
8. Ensuring that airflow is present at discharge
9.. Inspecting.wiring.to.equipment
X. Maintenance - Bulkhead and Deck Integrity
1.. Seal.all.visible.openings.(e.g.,.cracks,.crevices,.
holes,.including.openings.around.wiring.and..
piping.runs).in.bulkheads.and.decks.that.separate.
machinery.compartments.from.occupied.compart-
ments..These.openings.can.permit.migration.of.
CO.vapors.
2.. Check.gaskets.and.sealing.surfaces.on.hatches,.
doors,.and.access.panels.
Y. Maintenance - Air Conditioning Systems
These.systems.can.be.a.source.of.CO.ingress..
and.migration.of.CO.vapors.
1. Keep grilles and filters clean.
2.. Seal.bulkhead.voids.and.openings.at.wiring.and.
piping.runs.in.return.air.ducting,.plenums,.and.air.
handling.equipment.enclosures,.especially.those.
adjacent.to.machinery.compartment.bulkheads.
3.. Check.that.water.traps.and.condensate.drains..
are.present..These.may.be.in.the.form.of.a.double.
loop.in.the.drain.line.or.prefabricated.p-traps..Any.
drain.that.discharges.below.the.waterline.when.the.
boat.is.underway.is.sealed,.by.virtue.of.its.design,.
against.CO.intrusion.
Z. Maintenance - Liquid Drains
Sink,.shower.and.condensate.drains.can.be.a.source.
of.CO.ingress..Ensure.that.water.traps.are.present.
and contain fluid. These traps may be in the form of .
a.double.loop.in.the.drain.line.or.prefabricated.p-traps.. .
Any.drain.that.terminates.below.the.waterline.is,.by.
virtue.of.its.design,.sealed.against.CO.intrusion...
Some.drains.that.are.below.the.waterline.when.boat..
is.underway.will.be.above.the.waterline.when.the..
boat.is.at.rest..The.location.of.drains,.relative.to.the.
waterline,.can.be.affected.by.the.dynamics.of.boat.
motion.(i.e.,.underway.or.at.rest).
Boating Safety - Section B
AA. Carbon Monoxide Detection Systems
Four.Winns.has.included.two.CO.detectors.as.a.
standard.feature..One.of.the.CO.detectors.is.located.
in.the.forward.V-berth.and.the.other.is.located.in..
the.aft/mid.cabin..Check.systems.and.maintain.in.
accordance.with.the.manufacturer's.instructions.
CO monitors should be professionally installed
and calibrated. Failure to do so may result in
the improper function of the CO detector.
Never disarm a CO detector. If a CO detector
alarms, immediately ventilate the area and
check passengers for symptoms of CO intox-
ication. See your Four Winns dealer for assis-
tance in diagnosing the cause for the alarm.
NOTICE
For information on CO Detection Systems,
see American Boat and Yacht Council (ABYC
Manual) Section A-, "Carbon Monoxide
Detectors".
Even.with.the.best.of.boat.design.and.construction.
along.with.the.utmost.care.in.inspection,.operation,.
and.maintenance.of.boat.systems,.hazardous.levels.
of.CO.may.still.be.present.in.accommodation.spaces.
and.exterior.areas.under.certain.conditions..Vigilant.
observation.of.passengers.for.CO.sickness.symptoms.
should.be.supplemented.by.a.marine.CO.detection.
device.in.the.accommodation.space.
NOTICE
A.CO.detector.is.not.a.gas/fuel.vapor.detector...
Gas/fuel.vapor.detectors.do.not.monitor.the.
buildup.of.carbon.monoxide.in.an.enclosed.
area..For.further.information.on.the.design,.
construction,.and.testing.of.boats.in.consid-
eration.of.carbon.monoxide,.see.ABYC.TH-23.
NOTICE
Detection devices should meet the require-
ments of ABYC A- "Carbon Monoxide
Detection Systems on Boats".
..
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