[C320-list] Marine Air Conditioner

[Bob Borelli]

My 1995 C320 no. 209 has a Mermaid Marine Air M-12  12,000 BTU unit located in the same location as yours, on a shelf above the fuel tank, starboard side aft hold with the 2 vents located same as yours.  I have not operated it other then to turn it on, it is noisy.  The previous owner said it was good for cooling the aft berth and just adequate to cool the saloon.

Bob Borelli
1995 C320 no. 209
SAI, Georgetown MD


________________________________
From: C320-list <c320-list-bounces at lists.catalina320.com> on behalf of Charles Holbrook <charlesholbrook at ymail.com>
Sent: Monday, January 20, 2020 11:05 AM
To: Catalina List <c320-list at catalina320.com>
Subject: [C320-list] Marine Air Conditioner

Anybody have an idea on the BTU's necessary to keep my 1995 Cat 320 cool.  Right now I have a  9,000 BTU very old unit made by Pioneer located in the aft starboard access above the fuel tank with one vent opening into the aft berthing on port side and one vent into main cabin right above the reefer.  The return air is the whole aft section of boat.  The system does not work very well and keeps cycling off and on with a coil freezing failure alarm.  The coil is not frozen even if the alarm indicates it.  The local Marine AC guy bench tested the unit last year and could not find anything wrong with the unit.
I'm thinking about just replacing the whole unit and I am thinking about at least a 1600 BTU unit.  Any suggestions out there.
Charlie, Port Clinton, Ohio "Nautigirl"