gradually reduce the efficiency and performance of your air conditioner to a point that it
will require professional acid bath cleaning.
b) When cleaning the filter, also wipe the unit off with a dry cloth to eliminate dust build
up. Check that the air ducting has not sagged or loosened around the air collar or air
vents.
3. Electrical System:
a) Unless you have some reason to suspect an electrical problem, there is no maintenance
required for the electrical system; However, as always, it is prudent to do cursory checks
on all equipment on your boat as you perform your general maintenance on various
equipment and systems throughout the year.
B. WINTERIZATION:
1. Air Conditioning Unit and Water Pump:
a) If your boat is in the water, you must first close the "water in" sea cock before
proceeding with winterization.
WARNING
FAILURE TO CLOSE SEA COCK BEFORE REMOVING WATER HOSES MAY
RESULT IN FLOODING CAUSING SIGNIFICANT WATER DAMAGE OR
SINKING OF THE BOAT.
b) The condensing coil, the coil that connects to cooling "water in" and cooling "water
out", must be clear of any standing or trapped water. The best way to clear this coil is to
remove the "water in" hose from the coil and place a short piece of the same diameter
hose on the condensing coil. Blow through the short hose until no water comes out of the
"water out" thru-hull fitting on the outside of the boat. A compressed air source would
be ideal, should you have access to one.
c) Before replacing the condensing coil "water in" hose, go to where the pump is
located and remove the "water in" hose to the water pump. This is the hose between the
pump and the water strainer. Now return to the air unit and blow through the "water in"
hose forcing any trapped water back and through the pump. Again, a compressed air
source would be ideal, should you have access to one. This will clear the hose and the
pump. Replace both hoses to their original connections.
d) If you have any doubt about not clearing the condensing coil, you can add a legally
acceptable standard antifreeze or alcohol to the coil. Certain locales prohibit the use of
automotive antifreeze. Should you be using alcohol, insure you do not allow alcohol to
be in the water strainer. Clear plastic water strainer cups will cloud with alcohol.
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