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At Last - a 12/24VDC AC Manufacturer Found! [message #60880] Tue, 20 October 2009 22:10 Go to next message
Firefly is currently offline  Firefly   United States
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We all wore out the subject of AC units a few weeks back and someone mentioned DC AC units, to which the lot of us came up blank; however, I was browsing a 2-3 year-old sailing rag and lo and behold - it was found. A quick check to see whether they were still alive and voila - http://dcbreeze.com/

Don't get too excited - its only 5,000 BTUs.

Here's the skinny from the web site:

DC Breeze gives you:
5k Btu/hr of air conditioning in hot tropical climates
Direct 12 volt or 24 volt DC input - no inverter required
High energy efficiency
3-speed operation
Digital thermostat available

This might be a viable replacement for the dash unit, but not rooftop units - unless it stays in the great white North.

If anyone has success with this thing (it might be me in a few months), please let us all know.

Mark Scoble, Lunenburg, MA - 1973 23' Palm Beach Stretched to 32' and in residence at the GMC Co-Op in Orlando, FL

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60884 is a reply to message #60880] Tue, 20 October 2009 22:39 Go to previous messageGo to next message
GeorgeRud is currently offline  GeorgeRud   United States
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The unit also draws 48 amps, that's a whole lot! I think one of the aftermarket engine-driven AC units would probably be a better choice.

George Rudawsky
Chicago, IL
75 Palm Beach

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Re: [GMCnet] At Last - a 12/24VDC AC Manufacturer Found! [message #60885 is a reply to message #60880] Tue, 20 October 2009 22:34 Go to previous messageGo to next message
comcast is currently offline  comcast   United States
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Only good if you carry some sea water around for cooling it. <G>
Guess we could recirculate the water from our fresh water tank.
And on the 12 volt side:
"we need to have 384 amp-hours (at 12.5vdc) of usable storage capacity
available to us. Since we don't want to discharge the batteries more
than 60%, we will need a bank with a combined "20 hr" rating of 640
amp-hrs. If we translate this into some commonly available battery
sizes we find that, for 8 hours of continuous running we would need a
bank consisting of one of the following**;
• Three (3) 8D size batteries (20.75" x 11.0" x 11.8")
• Four (4) 4D size batteries (20.75" x 8.75" x 10.8")
• Six (6) Group 31 size batteries (13" x 6.75" x 9.8")
• Seven (7) Group 27 batteries (12.0" x 6.8" x 9.5")
• Eight (8) Group 24 batteries (10.2" x 6.8" x 9.4")
If additional power were being drawn from the bank for other reasons
(lights, refrigeration, etc), the bank size would have to be increased."

Roger Black
Burns, TN
77 Birchaven SB



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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60889 is a reply to message #60880] Tue, 20 October 2009 23:36 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
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48 Amps for only 5,000 BTU and you will need a mini cooling tower to eject the heat as it has a water to water condenser. Basically a 24VDC Neslab chiller.

Fine for a cuddy cabin the size of a Truck Cab that is already on the water with endless supply of cooling water and lower temps.

"Ye canna change the laws of physics!"

-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60890 is a reply to message #60880] Tue, 20 October 2009 23:38 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
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BTW, the typical car unit is 3-5 Tons (HP) which is basically 36,000 to 60,000 BTU capacity. The GMC dash air just isn't plumbed well.

-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60934 is a reply to message #60880] Wed, 21 October 2009 11:02 Go to previous messageGo to next message
seven is currently offline  seven   Canada
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An reply to my email on pricing:



Thank you for your interest in the DC Breeze. The unit on our web site was designed for boats and requires a water cooled condenser.

We are designing a replacement that will have the option of an air cooled condenser. It should be available in the new year. I don't yet know the price, but it should be under $3,300. (US) I will try to let you know when I have more details. We will have no problem shipping to Canada.

Kind regards,

N. Bruce Nelson

Glacier Bay, Inc.
2930 Faber St.
Union City, California 94587
(direct) 1 510 431 5821

Jay Fox Calgary AB
73 Painted Desert (Turtle)
78 Transmode (Trailer Donor)

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60939 is a reply to message #60880] Wed, 21 October 2009 11:11 Go to previous messageGo to next message
Firefly is currently offline  Firefly   United States
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Heavens to Murgatroid!

Like I said - don't get excited. The "mob" wanted a 12VDC solution; no one ever specified practical!

We all knew it wouldn't make economic sense the minute the first person mentioned DC as the desired power source. I simply followed up and found one by accident-like.

Mark Scoble, Lunenburg, MA - 1973 23' Palm Beach Stretched to 32' and in residence at the GMC Co-Op in Orlando, FL

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #60944 is a reply to message #60939] Wed, 21 October 2009 11:35 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
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Firefly wrote on Wed, 21 October 2009 09:11

Heavens to Murgatroid!

Like I said - don't get excited. The "mob" wanted a 12VDC solution; no one ever specified practical!

We all knew it wouldn't make economic sense the minute the first person mentioned DC as the desired power source. I simply followed up and found one by accident-like.



Sooo...

...Exit, stage left!

$3,300. Gahh! Those Yacht types sure have money to burn...

-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61062 is a reply to message #60944] Wed, 21 October 2009 22:25 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
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Chr$ wrote on Wed, 21 October 2009 11:35


sooo...

...Exit, stage left!

$3,300. Gahh! Those Yacht types sure have money to burn...


I bet Matt Collie could make some comments on this!


We always refer to boats as "a hole in the water into which one throws money."

For the GMC the phrase "GMC=Get More Cash" fits quite well.

Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61125 is a reply to message #61062] Thu, 22 October 2009 08:12 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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midlf wrote on Wed, 21 October 2009 23:25

Chr$ wrote on Wed, 21 October 2009 11:35


sooo...

...Exit, stage left!

$3,300. Gahh! Those Yacht types sure have money to burn...


I bet Matt Colie could make some comments on this!

We always refer to boats as "a hole in the water (Lined with fiberglass/wood/metal) into which one throws money."

For the GMC the phrase "GMC=Get More Cash" fits quite well.



Well,
Actually BOAT is just an acronym: Break Out Another Thousand

Some often refer to the activity of cruising as - Going to exotic locations to make expensive repairs.

Boats of all types are just like RV's and the classics like our GMC's are respected for the design and quality. The only real difference is that I have heard an emergency call from an RV that was taking on water. Other than that - Same-Same.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61142 is a reply to message #61125] Thu, 22 October 2009 12:33 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
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Unless it is a Terrawind... Laughing

Break out another thousand??? My boat isn't even WORTH that much.

mcolie wrote on Thu, 22 October 2009 06:12


Well,
Actually BOAT is just an acronym: Break Out Another Thousand

Some often refer to the activity of cruising as - Going to exotic locations to make expensive repairs.

Boats of all types are just like RV's and the classics like our GMC's are respected for the design and quality. The only real difference is that I have heard an emergency call from an RV that was taking on water. Other than that - Same-Same.

Matt



-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61143 is a reply to message #60880] Thu, 22 October 2009 12:36 Go to previous messageGo to next message
seven is currently offline  seven   Canada
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Another company selling these units

http://www.dcairco.com/index.html

Jay Fox Calgary AB
73 Painted Desert (Turtle)
78 Transmode (Trailer Donor)

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61149 is a reply to message #61143] Thu, 22 October 2009 13:25 Go to previous messageGo to next message
Chr$ is currently offline  Chr$   United States
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Registered: January 2004
Location: Scottsdale, AZ
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seven wrote on Thu, 22 October 2009 10:36

Another company selling these units

http://www.dcairco.com/index.html


Now give me a 110VAC unit like the 17000 BTU split unit and I will be happy...

-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61197 is a reply to message #61142] Thu, 22 October 2009 18:15 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
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Chr$ wrote on Thu, 22 October 2009 13:33

Unless it is a Terrawind... Laughing

Break out another thousand??? My boat isn't even WORTH that much.


You just need some new sails and maybe a little bigger boat.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: At Last - a 12/24VDC AC Manufacturer Found! [message #61258 is a reply to message #61142] Fri, 23 October 2009 06:59 Go to previous message
midlf is currently offline  midlf   United States
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Chr$ wrote on Thu, 22 October 2009 12:33

Unless it is a Terrawind... Laughing

Break out another thousand??? My boat isn't even WORTH that much.




No but the present value has no bearing on what it WOULD cost to get it repaired, only on your decision to proceed with the repair. After all it is STILL a BOAT. It is the same with our GMCs. How many here have spent more than the coach value for repairs and upgrades that they could never recover. This (boats, GMCs and hobbies in general) is a game where straight economic logic is not applied.

Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

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