Four winns 310 Horizon, Owner'S Manual

Page: 35 / 172

Owner’s Manual Page Boating Safety - Section B
X. Maintenance - Bulkhead and Deck Integrity
1.. Seal.all.visible.openings.(e.g.,.cracks,.crevices,.
holes,.including.openings.around.wiring.and.pip-
ing.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).
AA. Carbon Monoxide Monitor
Four.Winns.has.included.two.CO.detectors.as.a.
standard.feature..One.of.the.CO.detectors.is.located.
in.the.Day-berth.and.the.other.is.located.in.the.head..
Check.systems.and.maintain.in.accordance.with.the.
manufacturer’s.instructions.
1.. Gaskets.at.cylinder.head.connection
2. Casting and pipe fittings in the dry section
3.. All.joints
4.. Hoses
5.. Clamps
6. Mufflers and their drain plugs
7. Thru-hull fittings
8.. Hangers.and.other.supports
W. Maintenance - Ventilation Systems
Boats.are.equipped.with.ventilation.systems.to.elimi-
nate.gasoline.vapors..Blowers.and.fans.may.also.be.
provided.for.ventilation.and.to.mitigate.the.migration.of.
CO.into.occupied.compartments..Attention.should.be.
paid.to.the.following:
1.. Keeping.ventilation.intakes.clear.of.debris
2.. Replacing.damaged.hardware
3.. Maintaining.the.integrity.of.the.ducting.material.
and.its.connections
4.. Ensuring.that.position.of.ducting.intake.is.not..
obstructed.or.restricted,.collapsed,.kinked,..
or.crushed
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