Hunter 50CC, Руководство по эксплуатации

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Hunter 50cc • AC Electric Systems
8.8
it run warm. Continuous load should be restricted to 70 %
of maximum load.
Stopping generator:
1 Switch off all electrical devices (consumers). If the
generating set has been running under full load for a
longer period, do not shut it down abruptly. Reduce the
electrical load to about 30% of the rated load and let it run
for approx. 5 minutes.
2 Press the STOP button.
3 Close the inlet sea water cock.
4 Switch to an other AC power source, if available. If a
Mass Systemswitch is installed, this is done automati-
cally.
8.3.6 The Air Conditioning System (Option)
There are three air conditioning units installed on your
boat. Ensure that you read the instructions on the air
conditioner’s owner’s manual for more detail operating
information.
Fig. 8.6 Air contioner breakers on AC control panel. the
air conditioner control panel on main cabin navigation
station
1. Ensure you have 240 volt (230 overseas) power to the
MDP.
2. Check to make sure that the seawater intakes, and
discharge for the A/C system cooling is open and that the
strainer is clean and debris free.
3. Energize the Air Conditioning system at the MDP
panel.
4. Check to make sure that the discharge is flowing at the
Air Conditioning cooling water discharge.
General Operation:
The A/C unit reverse cycle air conditioner has both a
heating and cooling mode of operation. It uses R-22
or R407c refrigerant in a conventional vapor compres-
sion cycle to transfer heat from the air in the boat to the
water. In the cooling mode, a blower blows the cabin air
through the indoor or evaporator coil where it is cooled
and dehumidified. Liquid refrigerant passing through the
evaporator is boiled into a gas by heat removed from the
air. The warmed refrigerant gas enters the compressor
where its temperature and pressure are increased. The
hot refrigerant gas travels to the water coil or condenser
where it is cooled by the water and condenses to a liquid
Liquid refrigerant is metered back into the evaporator coil
to repeat the process.
In the heating mode , the process is reversed. A spe-
cial reversing valve reverses the flow of the refrigerant
throughout the system exchanging the roles of the con-
denser and evaporator. The refrigerant flows through the
water or evaporator coil, picks up heat from the water,
and becomes a vapor. The vapor then enters the com-
pressor where it is compressed to a higher temperature.
It is then pumped to the indoor coil where the air moving
across the coil picks up the heat and the warm air is
blown into the room. The compressed refrigerant vapor
condenses to a liquid as it gives up heat. Finally, liquid
refrigerant flows into the capillary tubes into the indoor
coil where the cycle is repeated.
The reverse cycle air conditioner is controlled by a con-
troller mounted on the main cabin navigation station,
port side aft engine bulkhead in aft cabin and above port
hanging locker in the forward cabin.
Please refers to air conditioner’s owner’s manual for
detail information regarding operating of the A/C unit and
maintenance information.