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Poll
Question: ROOFTOP A/C OR BASEMENT UNIT
rooftop unit - 16 (41%)
basement unit - 23 (59%)
Total Voters: 36

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Author Topic: A/C  (Read 2307 times)
kyle4501
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« Reply #15 on: July 22, 2008, 10:57:07 AM »

My vote is for a split system (like in cars with multiple evaporators), this way, I won't have to give up so much space for air ducts (& I'm not raising the roof either). I'll also choose fans that will move enough air without being so noisy.  Grin
The plan is to locate the "cooling boxes" in areas that are inconvenient for storage.  Cool
This will also open up more possible locations for the compressor & condenser.  Grin

I know I'll have to deal with condensate & running the 'freon' lines, but I think this will work out better for my needs/ wants.  Cool

With the price of used suburbans dropping so fast, the parts off 'em in the junk yards ought to be getting cheaper too!  Grin


Time will tell how well this plan works out.   Wink
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NJT5047
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« Reply #16 on: July 22, 2008, 02:12:46 PM »

I'm actually between Charlotte and Hickory I would love to see your bus if it would work out sometime

I just had the bus in your backyard last week!   We camped for 4 days at a bluegrass festival just outside Lincolnton.  Between between Lincolnton and Cherryville.
In any event, you're welcome to see the bus almost any time.   The bus likes visitors...  Wink
I'm in Indian Trail, North Carolina.   
If you are close to 321, that's the way down here....321 to I-85, I-485, off at exit 57 (Providence Rd.).    If coming down 27, sorta the same.  I-85, to I-485 etc.
Kyle is hosting another Bus Non-Rally at Palmetto Cove Campground this fall (Oct 4th weekend).  The event is located near Cleveland, SC, which is just West of I-26 near the SC/NC boarder.   Good place to see some home-grown bus conversions. 

JR   704-650-0235
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JR Lynch , Charlotte, NC
87 MC9, 6V92TA DDEC, HT748R ATEC

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« Reply #17 on: July 23, 2008, 12:16:05 PM »

Steamguy,

My vote is for a home heatpump split.  I think BTU size is critical as they are only available in 220 volt versions above a certain size.  My gen has a 220 tap and you can get a transformer for the 115V/30 amp hookup but then you get less than 15 amps to run.  Brands are a biggie as some have really good SEERS and others have very low start up draws thanks to new type motors. Be sure you get models with multiple speed condensers and multiple speed evaps...both.  If you properly spec you purchase you will have a much limited list of mfr.s and your expected cost will be higher than most quote.  Then again, you will have everything.  Low current start is a really big deal if you are running it off of the inverter going down the road and using your 300 amp engine alternator.

My thoughts only,

John
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CAROLINABOY
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« Reply #18 on: July 23, 2008, 06:10:37 PM »

what is a bus non-rally maybe I could bring a tagalong since my bus has no bathroom???
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James77MCI8
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« Reply #19 on: July 23, 2008, 06:12:56 PM »

Would it be feasible to use the existing condenser and evaporator with a traditional electric compressor. I know that the controls would have to be revamped , but could it work?
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« Reply #20 on: July 23, 2008, 06:43:22 PM »

Yes it would work if you use OEM size pump in electric. I assume you are talking about popular size traditional window compressor….oversize condenser is ok but will only be cold after the expansion valve or capillary tube into oversize evaporator at must smaller portion. In other words, more un-cooled air than cooled.

FWIW

Sojourn for Christ, Jerry
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JohnEd
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« Reply #21 on: July 23, 2008, 06:46:19 PM »

James,

I am sure you could make it work.  Somehow and for some amt of $.  I once looked into using an auto compressor driven by an elect mtr.  It was a short "look" as the HP needed was a real shocker and I still haven't figured out how they pull it off.  I think the numbers indicated I needed a 8 or 9 HP mtr and we both know that ain't happen'n.  The auto unit is around three ton of AC and a "conventional unit" would be hefty.  Not even a shadow of a doubt in my narrow mind that it could be done, though.

John

Sorry, I thought you were talking about using the standard coach system components.
« Last Edit: July 23, 2008, 06:48:50 PM by JohnEd » Logged

"An uneducated vote is a treasonous act more damaging than any treachery of the battlefield.
The price of apathy towards public affairs is to be ruled by evil men." Plato
“We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light.”
—Pla
NJT5047
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« Reply #22 on: July 23, 2008, 07:09:30 PM »

what is a bus non-rally maybe I could bring a tagalong since my bus has no bathroom???


A 'Non-Rally' is what you call a rally when the Airstream private campground is used.  We just show up...and park together. 
Your tagalong is fine.  A fully contained unit is required by the campground.
Check out pix of last October's Non-Rally at:  http://community.webshots.com/user/converter101?start=42
Had a good turnout last year! 
Any busnut or bus-wannabee is welcome to attend. 
The campground is nice. Nice family place...at least it is until I get there!  Wink
Palmetto Cove has no bath facilities, that's the reason campers must be self-contained.  They have hookups.   I believe mostly 30A. 
Check with Kyle for more details...or just come on over!  I'll be up on Thursday, Oct 2.   

So as to not hi-jack the thread, or ramble too far off topic, your AC issues could be put into $$$ perspective.   Ba$ement ACs are going to cost several times what an equivalent BTU rooftops will cost. 
It you are an HVAC guy like Nick or Christy, intalling basements and the ductwork is a walk in the park....if you gotta pay someone to install and service them, then maybe a walk in the swamp.  You could have almost the cost of a shell tied up in ACs.  Get some estimates.  An estimate may help you decide what you'll use.   
They are expensive, quiet, and expensive to repair if they need repairs.
Rooftops are very efficient, relatively inexpensive, easy to repair or replace, and tend to be a little noisy.   There are ducted rooftops too...they are usually as quiet as basement systems. 
I've got a pair of Dometic heat pumps and have really enjoyed them.  The heat pumps warm well down to about 40*.   After that, electric heater or LP (I use LP RV 31K heater) will keep you warm...or if your wallet is thick enough, Webasto or Hydro Hottie. 
What's in your wallet?   
JR 

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JR Lynch , Charlotte, NC
87 MC9, 6V92TA DDEC, HT748R ATEC

"Every government interference in the economy consists of giving an unearned benefit, extorted by force, to some men at the expense of others.”

Ayn Rand
kyle4501
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« Reply #23 on: July 23, 2008, 07:15:36 PM »

what is a bus non-rally maybe I could bring a tagalong since my bus has no bathroom???

What JR said + a little
Send me an email & I can answer your questions.

A rally is a planned event where there is structure & someone knows what is going on & where.

At a non-rally there is little in the way of planning, so plans don't get in the way of a good time.  Grin

Also, there is no requirement that you have to be in a bus at a bus rally, you just have to have an interest in buses.  Grin


http://www.busconversions.com/bbs/index.php?topic=8875.msg87779#msg87779

« Last Edit: July 23, 2008, 07:23:26 PM by kyle4501 » Logged

I know you believe you understand what you think I said, but I am not sure you realize that what you heard is not what I meant. (R.M. Nixon)
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