131
Interior Equipment
conditioning or heat then will be controlled by
the electronic control panel in the cabin. When
activated, water should continuously ow from
the overboard discharge thru-hull.
The air conditioning system produces heat when it
is operated in the reverse cycle mode. The abil-
ity of the unit to produce heat is affected by the
temperature of the seawater. As the seawater
temperature lowers, the air conditioner’s ability to
produce warm air decreases. When the seawater
temperature drops below 40 - 45 degrees, the unit
will not be able to produce heat. You should not
operate the air conditioner to produce heat when
the water temperature is below 40 degrees.
You should always keep the cabin door closed
when operating the air conditioner. If the cabin
door is left open, it could cause the air conditioner
unit to run continuously and not cycle enough to
defrost the coiling condenser. This could cause
the coils to develop enough ice to reduce the unit’s
ability to cool the boat.
The air conditioner is located behind the intake
vent in the compartment below the galley coun-
ter. The air conditioner creates condensation that
drips into the pan at the base of the unit. A hose
attached to the pan drains the water to the cabin
drain sump where it is pumped overboard. You
should monitor the operation of the sump pump
system and make sure it is operating properly
whenever the cabin air conditioner is activated.
The air conditioner can produce enough condensa-
tion to ood the cabin sole if it is allowed to run
for extended periods without the sump system
operating properly.
It is normal for some water to be in the condensa-
tion pan whenever the air conditioner has been
used. The pan should be checked periodically to
make sure it is draining properly. The drain hoses,
condensation pan and sump should be ushed
clean if they become restricted by mold or debris.
A seawater pump supplies cooling water for the
cabin air conditioning unit. The intake line for the
seawater pump is equipped with a sea strainer that
must be checked for debris frequently and cleaned
as necessary. Refer to the Raw Water System
chapter for information on the air conditioning
pump and cleaning the sea strainer. You should
also refer to the air conditioner owner’s manual for
additional operating and maintenance instructions.
Typical Cabin Air Conditioning Unit &
Condensation Pan Drain
Air Conditioner Control Panel
Notice:
Air conditioners use seawater as a cooling
medium. The boat must be in the water
and the raw water supply system must be
properly activated prior to use. Operation
without proper cooling could cause the air
conditioning unit to shut down and could
cause system damage. Always check for
proper water ow out of the air condition-
ing pump discharge thru-hull when the air
conditioner is operating.
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