Regal 53 SC Owner's Manual page 374

CONDENSER COIL CLEANING
Note: It is best to get an air conditioning expert familiar
with marine a/c to do the periodic maintenance mentioned
below. The information will assist the technician.
1. With the system turned off at the ship's AC electrical
panel, disconnect the inlet and outlet connections of the
condenser coil.
2. Use chemical resistant hoses (MAS white PVC 5/8" I.D.,
etc.) to connect the inlet of the condenser coil to the outlet
of a chemical resistant, submersible pump (MAS P-500
pump, etc.) and let the hose connected to the coil outlet
fl ow freely into the container mentioned below.
3. Place a strainer or piece of screen over the inlet of the
pump and submerse the pump into a container fi lled with
a 5% solution of muriatic or hydrochloric acid and fresh
water or use a premixed over-the-counter solution. Use as
large a container as possible to hold the solution
(2 to 5 gallons).
CAUTION
!
AVOID BODILY INJURY!
AVOID SPILLING OR SPLASHING
THE SOLUTION.
FOLLOW THE WARNINGS
AND RECOMMENDATIONS GIVEN
BY THE MANUFACTURER
OF ANY ACIDS
OR PREMIXED SOLUTIONS.
4. Power the pump and circulate the solution through the
condenser coil for 15-45 minutes depending on the size
of the coils and the extent of the contamination. Visual
inspection of the solution in the container should indicate
when the contamination removal has stopped.
5. Circulate fresh water through the coil to fl ush any
residual acid from the system.
6. Restart the system and check operational parameters
to ensure thorough cleaning has taken place. Additional
cleaning may be necessary with extreme contamination.
NOTICE
FOR THE PURPOSE OF PROTECTING
THE ENVIRONMENT,
DISPOSE OF ANY CONTAMINATED
ACID SOLUTIONS IN ACCORDANCE WITH
FEDERAL, STATE AND/OR LOCAL
REGULATIONS
AIR FILTERS
Check the air fi lter located at both A/C condensation units
monthly and clean as necessary. To clean the fi lter, remove
it from the unit, rinse with water, air dry and reinstall. Blow
with compressed air as needed. See the illustration on the
preceeding page.
28
Chapter 8
Drain Tray
Drain Hose