[C320-list] Power supply for AC install

[Rod Boer]

Hi Alan,
I installed a 12K Btu A/C on my boat. I leave the hot water heater on all of
the time and I am pretty sure I use my microwave also without popping the
circuit breaker.  I just have one thirty amp line coming into the boat.
Rod Boer, Hull 688, Chesapeake Bay

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Alan Goodman
Sent: Monday, April 28, 2014 2:08 PM
To: c320-list at lists.catalina320.com
Subject: [C320-list] Power supply for AC install

Hello all:  I am self-installing my air conditioner over the next month.  I
bought a 12K BTU from Flagship Marine.  I need to install a 20A 120V circuit
to supply the unit.  I have found a source for the exact same breaker as the
factory installed AC breakers.  I rather not have to install a second shore
power circuit to supply the power, but on the other hand I'll be installing
a 20A breaker in a 30A circuit.  Obviously I should not run the water heater
(about 12 A @ 120V) while the AC is on.  This is a downside I can live with.
Are there other considerations I should consider?  My question is what have
others done? 

Alan Goodman   Hull #67  Holland, Michigan