540
HYDRAULIC SYSTEMS
Studio ti 03312 540-04usa
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9
9.8.2 Air conditioning system maintenance
Condensate drains
At least once every three months, check the condensate drains for
obstructions by pouring a quart of water rapidly into the condensate pan.
If it does not drain completely within 30 seconds, check the drain outlets
for clogging. Remember that many air conditioning units have two drains
and hoses, one at each end of the drain pan.
Air filters
At least once a month, check the lint screen or filter behind the return air
grill or on the face of the cooling/heating unit and clean if necessary.
Seawater connections
Verify that all seawater connections are tight, and check for water flow
from each unit’s overboard discharge.
Seawater pump
If the seawater pump has a plastic pump head, then the impeller is made
of either plastic or rubber, and should be inspected after 300 hours of
operation. Replace the impeller if it is worn. Whereas, if the pumps head
is made of bronze, then the impeller is too, and regular maintenance is
not needed as often.
Seawater filter
Check the seawater strainer daily. Remove any debris.
Refrigerant gas
The refrigerant gas used in the air conditioning system is adequate for the
life of the system. Routine “seasonal” charging of the system is not
typically necessary.
Winterizing the system
Close the seacock and remove the water inlet hose from the air
conditioner. Allow all water to drain from the system. Loosen the screws
on the pump head to allow the water to drain from the pump. Drain and
clean the seawater strainer.
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