Join Date: Jul 2002
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Reverse Cycle Air Conditioning
Ray, I''m surely no expert on this but my system has worked great for 6 years after doing the install, so here are a few things that come to mind...
1. Insure the circ pump you install is below the water line (not just the thru-hull that supplies it) so the pump self-primes after the boat''s been out of the water.
2. If that''s not possible, be sure to install a purge valve in the discharge line between the compressor and the hull''s discharge thru-hull, so the pump has a chance to prime itself.
3. Think about what will happen should the condensate line plug up somewhere and the water overflow the small reservoir right underneath the evaporator. I ended up with some wood damage because I didn''t think about this.
4. Draining the condensate directly to the bilge will result in lots of growth opportunties down there. Doing something clever with it (I plumbed mine into the shower sump tank) may tempt it to back up even more (mine did). In a hot Florida summer, it''s amazing how much condensate can be generated while you are shopping and off the boat Saturday morning, so think about this issue carefully.
5. If you are in a hot climate (Gulf Coast, SE Atlantic or Chesapeake in the summer) you probably shouldn''t expect your unit to cool the boat all by itself to ''house/condo-like standards''. It''ll be running itself to death. Try to help it be using awnings, shades (ports & hatches), and setting the thermostat higher than ashore.
6. If you aren''t totally comfortable with the AC wiring job, get help - it can kill you.