| When
choosing the proper model Cabin Mate unit, primary consideration
should be given to calculated BTU loads and available power supply.
Special consideration should be given to determining the reverse
cycle heating capacities under anticipated conditions. Reverse cycle
operation is affected by the sea water temperature. As it decreases,
the unit’s heat transfer capacity also decreases and
proportionately affects the output of warm air, it is not
recommended that the unit be operated in the heat cycle with water
temperatures below 40°F. The location for the Cabin Mate unit
should be dry and accessible for service. Placement of the unit
should be adjacent to a low return air access from the area to be
conditioned. The unit should be installed with the proper fasteners
and secures to a horizontal surface sufficient for the unit weight
and torsion load from the vessels movement. Never install your air
conditioner air handler in bilge or engine room areas. Insure that
the selected location is sealed from direct access to bilge and/or
engine room vapors. Do not terminate condensate drain lines within
four (4) feet of any outlet of engine or generator exhaust systems,
nor in a compartment housing an engine or generator, nor in a bilge
(vapors can travel up the drain line), unless the drain is connected
properly to a sealed condensate or shower sump pump. Failure to
comply may allow bilge or engine room vapors to mix with the air
conditioners return air and contaminate living areas. Grilles should
be sized according to Marine Air design standards. Install the
return air grilles low and supply air grilles high. Return air
grilles must have removable filters installed on the unit. Ducting
should be sized according to unit specifications. All ducting should
be installed to be as smooth, straight and taut as possible,
avoiding any unnecessary bends or loops. Once ducting runs are
positioned properly they should be securely fastened to avoid
shifting due to motion of the vessel. |
Plastic
vacuum-formed and insulated aluminum transition boxes are available
for proper air flow direction into any cabin area. Ducting should be
properly secured to these transition boxes to prevent air flow
leakage. Built-in plenums of chases must be sized properly,
completely sealed and insulated. Reinforced marine grade hose must
be used for the seawater circuit. All fittings must be double hose
clamped. The hose should be routed upward from the thru-hull intake,
sea cock, strainer and pump, to the condensing unit to prevent air
locks in the centrifugal sea water pump. Circuit breakers and wire
gauge must be sized according to marine design standards. Only
standards tinned copper wire should be used. All equipment should be
properly grounded. In keeping with regulations set forth by the EPA,
only certified technicians should perform service on, or make
adjustments to, the refrigerant circuit. |
