Interior Equipment; Air Conditioner - Regal 3760 Owner's Manual

INTERIOR EQUIPMENT

AIR CONDITIONER

VECTOR
COMPACT
replies upon a source of AC power supplied by
shorepower or an onboard generator along with a sup-
ply of water (salt or fresh).These units feature the abil-
ity to provide heat in a reverse cycle mode especially
useful in extending the boating season in colder climates.
This reverse cycle operation is affected by the tempera-
ture of the water. As the water temperature decreases
so does its ability to produce heat. It is recommended
that the reverse cycle not be used when the water tem-
perature is below 40 degrees Fahrenheit.
The air conditioning infor-
mation included in this chap-
ter applies only to factory in-
stalled equipment. The unit
is made by Marine Air Sys-
tems and is known as the
Vector Compact model with
a digital Passport control.
The unit output is 18,000
BTU'S (British Thermal
Units). The air conditioner
HOW IT WORKS
Screw access
the illustration.
It is made up of four main components and a refrigerant
gas called freon circulating through the system. The
BLOWER draws warm air across the fins on the EVAPO-
RATOR where the heat from the air is transferred to the
refrigerant in the evaporator coil. As the refrigerant evapo-
rates from a liquid to a gas it absorbs the heat from the
cabin air.
The COMPRESSOR then compresses the refrigerant gas
and pumps it through the outer tube in the CONDENSOR
COIL.
The seawater pump located beneath the salon floor circu-
lates cool seawater through the inner tube in the condensor
coil; this cools the refrigerant and condenses it into a liq-
uid. The heat from the refrigerant is exchanged to the sea-
water and discharged overboard. The liquid refrigerant is
then passed through the EVAPORATOR and the cycle is
repeated.
Removing heat from the cabin lowers its temperature. The
cooled air is blown through the ducting and out the sup-
ply air grilles.
For reverse cycle heating, the refrigerant flows in the op-
posite direction through the reversing valve. Heat is trans-
ferred from the seawater in the condensor coil to the re-
frigerant and then to the air blowing through the evapora-
tor into the cabin. As stated on the previous page seawa-
ter temperature will directly affect the a/c unit's efficiency.
The compact vector model a/c can efficiently cool your
boat in water temperatures up to 90 degrees Fahrenheit
and can provide heat in water temperatures as low as 40
degrees Fahrenheit.
3
The air conditioner is
self-contained. It is lo-
cated in the salon just
ahead of the AC/DC
panel. The cabinet can be
accessed by removing
several screws under the
cabinet top through the
front cabinet door. See