SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > Boat Builders Row > Catalina > C27 marine air conditioing - has this been done?
 Not a Member? 


Thread: C27 marine air conditioing - has this been done? Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
05-13-2008 03:41 PM
oldjags
Marine AC for C27

Quote:
Originally Posted by PhilDrag View Post
I've got a 1986 Catalina 27 and I am considering installing a water cooled marine air condition unit. I would not use a carry on a/c or window unit nearly as much beacuse of the hassle and weight involved in setting it up. Does anyone know the best install location for the unit, duct work and water pump? How about BTU for Florida (I was thinking 9K or 12K becasue of the summer heat). The holding tank is under the V-berth. Wouldn't that location pump that bad smell all over the boat?
Thanks for your help.
I just finished installing a Mermaid 9K unit on my '87 Catalina. I tried my best to figure out how to mount the AC unit up under the V-berth, but I could never work out the ducting issues. There's just not enough free space there.

I ended up installing a shelf inside the port lazarette, right above the batteries, for the unit to sit on. I removed the small access door behind the galley sink and used that opening for the return air. The shelf sits at the same level as the interior countertop, so there's still plenty of room to get to the batteries underneath.

I installed one 4" outlet in the same bulkhead as the return. It blows out over the galley, and since it's located right there at the AC unit, it puts out a good bit of air. (A 6" outlet would be even better, though.) There's another 4" outlet in the starboard quarterberth, with the duct work running across the engine compartment. The last 4" outlet is at the base of the port settee opposite the head. That ductwork runs back through the storage area under the settee, through a bulkhead, then under the stove, then back to the engine compartment where it ties into the other ductwork.

I moved the electric water pump from under the galley sink and installed the through-hull there, along with the 110v AC water pump. The water exits the boat at the stern, alongside the bilge pump and engine exhaust outlets.

I decided on the 9K unit because I'd like to possibly be able to run it off a Honda generator. I'm not sure that you can run a 12K unit off one, but maybe you can. If you can fit a 12K in there, I'd go for it. I can already tell it's going to be running full time when it gets hot.

Hope this info helps.

Lee Scott
Shelby, AL
05-08-2008 12:34 PM
Triquetra Some of the marine AC units are quite heavy also (mine's about 75 lbs), but they do not protrude on deck. I had a Mermaid AC unit installed in my Corsair 36, and found that I needed the 19K btu unit, because the 14K was too small for my boat AND the way needed to be ducted. The unit I installed was a dual phase unit, meaning it has heat pump capability as well as AC. My unit is in the compartment with my batteries. Since it requires inlet and outlet through-hull fittings and it generates water (condensation), you may have a difficult time assessing where any "water" is coming from if it is near your holding tank. I actually have a venturi circuit that sips the condensate out with the outgoing AC water, but it puts a restriction on the flow, so the pump has to have sufficient throughput to utilize this. And, yes, it will probably make the rest of your boat aromatic. You might be able to make an isolated inlet ducting circuit that prevents the air from the V-berth from being used by the AC though.

Another consideration is when I clean my inlet water trap I cannot avoid spillage, particularly since the person who installed my unit put the water outlet just below the waterline and did not install a shut-off valve (since corrected). When I get a spill or a leak I have a path to my central bilge pump from my AC location, which you may not have in your V-berth.

I also took apart my AC control box and increased the delay from virtually no delay to about 1 min between starting the pump and the compressor. This minimizes the power surge of the AC and now, I can use my Honda 2000i generator to run my AC/heat while on the hook.

I hope that this information helps you.
07-07-2007 10:18 PM
PhilDrag
C27 marine air conditioing - has this been done?

I've got a 1986 Catalina 27 and I am considering installing a water cooled marine air condition unit. I would not use a carry on a/c or window unit nearly as much beacuse of the hassle and weight involved in setting it up. Does anyone know the best install location for the unit, duct work and water pump? How about BTU for Florida (I was thinking 9K or 12K becasue of the summer heat). The holding tank is under the V-berth. Wouldn't that location pump that bad smell all over the boat?
Thanks for your help.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 06:40 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.