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Results of Internet Research
Compiled by:
The following information was gathered off the Internet to
provide some planning data for possible installation of air conditioning and
reverse cycle heating for a 45’ cruising sailboat owned by my friends Bev and
Colin in Queensland who are having a new babe aboard. They might be of interest to the Kelly-Peterson Group as well. Of those looked at I think Arctic Marine
Air, Flagship Marine and Marine Air Systems are the most promising. (Note. This article was written some time ago and many of the products and links may have changed. We chose not to put any airconditioning in our boat Some of this information may prove useful to those who are contemplating a cooled vessel)
HOW TO PROPERLY SIZE YOUR BOAT
by Flagship Marine, Inc.
Properly sizing your boat is a
critical part of planning a successful air conditioning system that you will
enjoy for many years.
Air conditioning systems remove
the humidity from the air before you really see a significant drop in
temperature, therefore, if you undersize your load significantly, you will be
very uncomfortable and unhappy with your system when you need it the most!
Significantly oversizing the
system will create "short cycling," not giving the system proper run
time to satisfactorily dehumidify the vessel.
The general rule of thumb for
sizing a pleasure boat is using the formula of 14 BTU's/cubic foot of air
conditioned space. This factor is for
normally constructed pleasure boats, and should be adjusted if non standard
construction techniques are used.
For Average Below
Deck Area in 44’ boat (for our KP44, would be a bit more for Cal46).
Length x Width x Average Height x 14 BTU
28 x 10 x 5 x 14 = 19,600 BTU
(2 cabin + main cabin)
10 x 8 x 6 x 14 = 6,720 BTU
(1 cabin)
|
CABIN |
CUBIC FEET |
BTU @ 12/ft3 |
BTU @ 14/ft3 |
BTU @ 19/ft3 |
|
Forepeak Cabin |
150 |
1,800 |
2,100 |
2,850 |
|
Main Saloon |
625 |
7,500 |
8,750 |
11,875 |
|
Aft Cabin |
450 |
5,400 |
6,300 |
8,550 |
|
Total Boat |
1,225 |
14,700 |
17,150 |
23,275 |
To Determine Generator Size
use this equation
Amps x Volts x 2 = Generator Watts
Required
It is prudent to use a factor of
16 to 19 BTU's/cubic foot for areas that are used during the heat of the day
that have a lot of sunlight coming in, for example a pilothouse, especially if
the roof is not shaded or well insulated.
For areas below deck that are
primarily used after sunset, such as a stateroom, you can usually drop this
factor to 11 or 12 BTU's/cubic foot.
Using these factors, combined
with some common sense, will almost always produce a satisfactory system,
however, you can always hire a professional to prepare a thermodynamic heat
load analysis for your particular vessel.
Equally important to properly
sizing the vessel is determining how much individual control is desired. For
example, in individual staterooms you may wish to have small separate systems
that are independently controlled and one large system for the main salon and
galley areas.
Arctic Marine Air
727-447-5432 . . . 800-230-5464 . . . Fax: 727-447-4933
2170 Sunnydale Blvd., Ste. U, Clearwater, FL 33765
website: www.aztecone.com/arcticair
No pictures available from this one (JS) but it sounds good.
I talked with the rep from AMA and
they sound pretty good. Their web page didn’t
say much, but they are persuasive on the phone. They claim:
Smallest
dimensions
Quiet because
marine Aluminum not Steel
High pressure
switch shuts down unit
Raw water
cooled
Plug in
connections
Full Kit
supplied
Tecumseh
Compressors
simply has the best deal on
marine air conditioning units.
We even do Custom Design!!
Keep Your Boat Cool
Get in on the
Internet Savings
The following deals
are available to you on the Internet. Be sure to mention this site
to receive these great deals.
For Further Information - Contact Us
Self Contained Units
|
9000 BTU |
16000 BTU |
|
12000 BTU |
19000BTU |
Split Units also
available
Each Package
Contains:
Heat / Cool Model of
your Choice
Central Control Panel
Two Aluminum Registers
One Plenum
Two Transitions
10' Standard Duct
One Seawater Pump
20' Vinyl Hose
6 Hose Clamps
1 Thru Hull Discharge
|
Self Contained or Split Component |
Complete Line of Marine Parts and Accessories for you boat or yacht -
Anchors,
Baitwell Pumps Hatches, Search Light etc.
Call Today 1-800-230-5464
Cruisair
804-746-1313 . . . 800-234-8778 . . . Fax: 804-746-7248
8433 Erle Rd., Mechanicsville, VA 23116
e-mail: sales@cruisair.net
website: www.cruisair.com
The Carry-On fits in any standard-size hatch. The
adjustable, waterproof cloth hood fits over the unit and the hatchcover,
sealing in the cool air and keeping out insects and rain. There's an adjustable
leg and a convenient bubble sight glass on the outside of the unit making it
easy to level. And when you leave the dock, the Carry-On stows below deck, in
your dockside locker or in the trunk of you car.
All operator controls are easily accessible on the bottom of
the unit. You can turn it off and on, set the thermostat and adjust the fan
speed from the cabin.
The Carry-On runs on normal dockside 115V, 60 Hz power. (A
230V, 50 Hz model is also available for areas outside North America.) It only
draws 6 amps running. All internal components are made of corrosion-resistant
material, and the outside case is built of tough, durable polymer. The best
news is, the Carry-On is priced for budget-minded boatowners.
|
Capacity |
4800 BTU/HR |
|
Height (above
deck) |
133/4 in (350 mm) |
|
Length |
301/2 in (775 mm) |
|
Width |
153/4 in (400 mm) |
|
Weight |
60 lb (27 kg) |
|
Amps (Running) |
6.0 at 115V (3.0 at 230V) |
|
Amps (Starting) |
18.0 at 115V (9.0 at 230V) |
|
Minimum Hatch
Size |
12 x 12 in (305 x 305 mm) |
|
Maximum Hatch
Size |
24 x 24 in (610 x 610 mm) |
Komfort
Industries, Inc.
941-997-1740 . . . 888-437-0885 . . . Fax: 941-997-1744
16071 Pino Dr., N. Fort Myers, FL 33903-2201
e-mail: coolboat@aol.com
website: www.coolyourboat.com
This is it – all they had at their web site (Jeff)
Interested in buying a
portable marine air conditioner
at surplus pricing?
Call AquaCal for more Info at……
1-800-786-7751
Marine Air Systems, Inc.
954-973-2477 . . . Fax: 954-979-4414
2000 N. Andrews Ave. Ext., Pompano Beach, FL 33069
e-mail: onboard@marineair.com
website: www.marineair.com
Our self-contained systems for 20 to 50 foot boats feature
the high efficiency Tecumseh rotary compressor for lower power consumption,
quieter operation, lighter weight and increased reliability. Our newest
self-contained model -- the Vector Compact -- is 25% smaller than any
comparable system, thanks to a patented design breakthrough that places the
condenser coil inside the evaporator shroud. Our wide range of capacities and
configurations allows designers, builders and owners to find the successful
solution they need, within budget.
VECTOR COMPACT
The Vector Compact was introduced in 1998 and just recently was awarded a US
patent. It was designed and developed to be the smallest water cooled, self
contained unit on the market. This space saving unit is 25% smaller than its
competitors' and its simple, clean design will allow easier installation and
service.
Service
and Troubleshooting Guidelines
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