Maintenance; Reversing Valves; Air Conditioner - Regal 3760 Owner's Manual

MAINTENANCE

This section covers maintenance procedures on standard
and selected optional equipment.

AIR CONDITIONER:

Before each outing inspect the thru-hull fitting for leaks.
Make sure the seacock is open. Also, the sea water strainer
located in the bilge should be checked periodically for
foreign objects and accumulated debris. To clean the
stainer, unscrew the seacock fasteners by turning
counterclockwise, remove the wire strainer, and blow it
out if possible with compressed air. Reinstall the strainer,
make sure the gasket on the top of the seacock is
centered, and tighten the fasteners. Check for leaks since
sucking air into the system could cause the seawater
pump to malfunction. See the illustration.
Inspect the air filter monthly. The air conditioner filter is
located in the return air grille framework in the cabinet
below the AC/DC cabinet. To clean the filter remove it
and rinse with plenty of fresh water. See the equipment
operation chapter for more information.
Check the AC hose output located on the hull side
insuring there is a full discharge when the AC pump is
running. If there is little or no discharge shutdown the
unit and immediately find the cause of the problem.
Periodically check the drain located at the compressor
to make sure the entrance to the hose at the AC pan is
not clogged with foreign matter.
If clogging occurs, blow out the hose with compressed
air and pour in a bleach/water solution at 5/1 parts water
to bleach.
WARNING
!
TO PREVENT BODILY INJURY OR DEATH!
DUE TO THE HIGHLY PRESSURIZED
REFRIGERANT FOUND IN THE AIR
CONDITIONER UNIT, DO NOT LOOSEN
OR REMOVE ANY FITTINGS.
Hose-
To Condensor
Seacock
Seawater
Strainer
WARNING
!
TO PREVENT BODILY INJURY OR DEATH!
DISCONNECT THE A/C BREAKER AT THE
MAIN A/C PANEL BEFORE OPENING ANY
COVER ON THE A/C UNIT.

REVERSING VALVES

All reverse cycle units use a reversing valve: the valve
must be energized periodically to keep the internal parts
moving freely. To do this, switch the AC unit into heat
for a few seconds once a month.
SEAWATER STRAINER
Check the AC pump for proper seawater flow by cleaning
the seacock strainer basket. Check the overboard discharge
for adequate water flow. Check seawater intake speed
scoop for obstructions. Make sure hoses are not looped,
kinked or crushed.
18
Chapter 8
A/C Pump