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under the seat that are immediately a of the steering helm.
ese large stainless steel plates attach to the wall inside the stor-
age bin, through which coolant circulates, similar to the opera-
tion of a regular refrigerator.
Note that the refrigerator and the cold plates function o
the boat’s electrical system. Attention should be paid to the
Voltmeter(s) to be certain that these systems do not over-drain
the electrical system.
On the MariStar 280 and X-80 refrigerator unit note that it
can be used in an ambient air temperature range of -4 degrees
Fahrenheit (-20 Celsius) to 130 F (55 C), and a maximum of
90 percent air humidity in constant operation. e device can
cool goods in a temperature range of 28 degrees F (-2 C) to
53 degrees F (12 C). It is equipped with a battery monitor that
switches the compressor o and on again, protecting the battery
and the compressor against damage.
e refrigerator is suitable for cooling food. If you wish to cool
medicine, please check to determine whether the cooling capac-
ity is sucient for the medicine in question.
Food items or anything that can create an odor should not be
le in the refrigerator or cold plate areas. Neither should any-
thing that can leak be le in these units as they could potentially
damage the units, and this type of damage is not covered under
warranty. e condenser on the refrigerator should be kept free
of dust, dirt and anything that inhibits its proper operation. e
manufacturer also recommends leaving the drawer slightly open
if it will not be used for a period of time. is helps prevent
unpleasant odors from forming.
Refrigerator cleaning instructions have been provided by the
manufacturer. Note that it should always be OFF, and should
never be cleaned under owing water or submerged in any kind
of body of water, including, but not limited to, a sink. Do not use
abrasive cleaning agents. If it is necessary to defrost the interior,
never remove layers of ice with hard or sharp tools as they can
damage the plastic of the vaporizer. Allow the unit to air defrost.
e refrigerator operates by opening the coolbox door and
turning the thermostat knob clockwise. Shutting it o requires
turning the thermostat knob counterclockwise.
Seat Heaters
For real comfort, some models oer a seat heater option, which
will be for the driver’s seat, and sometimes in the observer’s seat.
It is not oered for any other seating in the boat. e heater(s)
operate by a switch on the control panel. If the switch is turned
ON and the seat does not warm up, or appears to become too
warm, turn the switch to OFF and seek assistance from your
authorized MasterCra dealer in remedying the issue.
Shower or Wash Down
Many models oer a shower or wash down option. A single
three-position switch mounted in an a position storage area
controls the optional shower and optional Slick Boot func-
tions. e switch is marked for each. Turn the switch toward
the Shower marking to turn ON the shower. Return to center
MasterCraft 2009 Owner’s Manual - Page 19-6