Regal 53 SC Owner's Manual page 129

AIR CONDITIONER MAINTENANCE TIPS
Seawater Strainer
PLASTIC
CAP
BASKET
PLUG
TYPICAL A/C SEAWATER
STRAINER
strainer. Remove the basket by turning the plastic cap in
a counterclockwise direction. Set the cap and the O ring
aside. Pull the basket from the unit, rinse with water, air
dry and reinstall. Sediment at the bottom can be removed
by just turning the plug in a counterclockwise direction.
Set the plug and O ring aside. Place a container under
the strainer to catch the sediment. Coat the O rings with
waterproof grease containing a silicone or tefl on base.
Reinstall O rings along with the plug and plastic cap. Turn
on the seacock and check for leaks.
Return Air Filters
Once a month check the return air fi lter located on the
face of each evaporator. To clean rinse with fresh water,
air dry and reinstall.
WARNING
!
PREVENT SEVERE INJURY OR DEATH!
DISCONNECT
ALL ELECTRICAL POWER SOURCES
BEFORE ATTEMPTING
TO OPEN, REPAIR OR REPLACE ANY
AIR CONDITIONING COMPONENTS.
The air conditioner
seawater strainer lo-
cated in the engine
r o o m s h o u l d b e
cleaned periodically
of debris which can
inhibit or stop the
fresh seawater supply.
Always turn the sea-
cock to the off posi-
tion (90 degrees to the
hose fitting) before
cleaning a seawater
77
Drain Pans
As noted on an earlier page the AC evaporator/condenser
units feature a 2" deep drain pan connected by a hose
that runs to a sump pump and eventually exits overboard.
Periodically just like your home AC, the pan needs to be
rinsed clean of debris and possible mold.
You can use a purchased product or mix laundry bleach
and water (1 part bleach to 5 parts water) in a quart con-
tainer with a lid. Disconnect the outlet hose from the AC
pan and install a made up hose (5/8" ) that will catch the
used bleach solution to fi ll the container. Dispose of the
container in accordance with federal, state and local regula-
tions. Pour the solution into the pan and allow time for it
to drain. Reconnect the original drain pan hose.
Condenser Coil Cleaning
Periodically the condenser coils are recommended to be
cleaned. This procedure should be done by a professional
since an acid solution must be used.
POSSIBLE PROBLEMS/SOLUTIONS (A/C )
1. No or little water is noticed at the thru-
hull fi ttings and a HPF shows on the dis-
play which means the high pressure switch
is open.
The strainer or intake hose may be
clogged, seacock may be closed or a hose
may be collapsed or kinked. Check AC pump breaker to
verify pump operation.
2. Air conditioner will not start. Ensure the proper AC
breaker is actuated on the ship's main control panel.
3. No cooling or heating. Lower or raise set point on ther-
mostat control to offset set point being satisfi ed. Check
for obstructed seawater fl ow. Remove discharge side of
pump hose to purge air (air-lock). Seawater temp too high
for cooling and too low for heating.
4. Fan coil is iced. Raise or lower control set point. Clean
return air fi lter. Switch AC to heat until ice melts or as a
last resort use a hair dryer to melt ice as needed.
Systems