Home » Public Forums » GMCnet » Quietest roof A/C Heat Pump
| Re: Quietest roof A/C Heat Pump [message #242868 is a reply to message #242761] |
Sun, 09 March 2014 09:32   |
quadracerx1
Messages: 207
Registered: April 2013
Location: Puyallup, Washington
Karma: 1
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Thanks guys...
My plan is to add wiring for rear AC and additional 12 volt and 110 wiring as well... Even if I don't use them, they will be there... Now I just need to find someone who can do said wiring and replace my buzz box and 12 volt fuse block.
Anyone in the Seattle area willing to do it? Ill pay with beer and pizza...LOL Oh and some money too...
Thanks again..
Steve
75 26' GMC Glenbrook
Puyallup, Washington
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| Re: Quietest roof A/C Heat Pump [message #242872 is a reply to message #242782] |
Sun, 09 March 2014 10:26 |
corleyw
Messages: 130
Registered: June 2007
Location: Battle Ground, WA
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[quote title=Matt Colie wrote on Sat, 08 March 2014 12:12Corley,
I hate to disappoint you, but most of the noise is from the inside fan and ducting (such as it is). It is related to the velocity of the air that must be moved for that amount of cooling. My real new Carrier is not a lot quieter than the Coleman MarkIV I took off, but it is 5 inches shorter so I can get into my barn.
Keep on thinking, it is the most cost effective thing you can do.
Matt [/quote]
LONG POST ALERT!!!
Matt, I'm not newly disappointed, since it's pretty obvious that the amount of air and air movement causes most of the noise. But, it doesn't have to be that way! If someone built a unit that moved the evaporator and a quiet blower inside the RV, instead of trying to stuff the air through those corners, and small ducts, a quiet unit could be built. WAIT, a quiet unit is already being built for residential use, and it is called a "Mini-Split" unit. The evaporator and a long slow turning blower (plus some electronics) make up the inside unit, and refrigerant lines connect it to an outside unit which houses the condenser and a compressor. The REALLY NICE ones, use a DC invertor compressor, and vary it's speed based upon load. OH, and they have reversing valves that allow them to become a really efficient heat pump as well. I've installed 3 of these now, and I'm amazed at how well they work both in heat and cooling mode. If only they were packaged into an RV friendly package, all would be nirvana. BUT WAIT, the inside unit of a 12k unit would actually fit nicely above the rear window of a GMC without blocking any of the drivers rear view! So now it's just the outside unit (DC invertor compressor, condenser, and electronics) that is the packaging problem. It's about the size of the spare tire. (10" deep, 22" high, 26" long.) It needs to move a lot of air through it, so it must have good ventilation around it. OR, it could be repackaged.
When I built this house 5-6 years ago (took me two years to built it), I wanted the best insulated home available. I used ICF concrete filled foam blocks, spray foam insulation at the roof, and a concrete floor on top of 4" of Styrofoam insulation. And for heat, I wanted a geothermal in floor hydro heat. For the first year here, I used a large hot water heater to heat the home, until I could buy and install a water to water heat pump, as the heat source. That never happened, because so few companies even made water to water units, and NONE of them made a DC inverter technology heat pump. Widely available in European and Asian countries, but not even built here in the USA nor imported. So, I built my own. I bought a 24k BTU DC invertor mini-split heat pump, which was an air to air unit, and converted it to a water to water unit. (Basically used the compressor and electronics plus some plate heat exchangers ]refrigerant to water) on both sides.) The reconstructed unit fits into a 10" X 23" X 24" cabinet, and has connections to my ground loop on one side, and connections to the house water zones on the other side. There is a circulator pump for each of the 4 zones in the house, and a thermostat for each zone. When all zones are circulating water through the floor, the heat pump runs at full blast speed. When only one zone is circulating water through the floor, the compressor idles along, and so forth.
All of that explanation was to first explain why the DC invertor compressor is critical, and also to let you know that I am qualified to convert a mini-split unit for use in the GMC. Now on the GMC, it's a matter of "what do you want to give up?" Space is so premium on these coaches, that something would have to go. For me it would probably be the Onan, plus reducing the size of the propane tank. Why? I've never used the Onan when camping. EVER. We always go to RV parks where we can plug into 30 amp service. Why the propane tank size reduction? Well, we filled it three years ago, and it is still going. Every park we've gone to in those 3 years has had a refill station. I don't need to carry that much propane, and if I reduced the size of the tank, I could then carry a small (2k?) portable generator for emergencies. I've already moved the batteries to the front of the coach via the Ragusa tray, so removal of the Onan would free up enough space for the mini-split outside unit, with a bit of repackaging.
That is my idea, but probably I will never implement it, and for sure if I could just buy a quiet roof model I'd go that way.
Therefore, Matt's advise to "keep on thinking, it's the most cost effective thing to do", is probably what I'll do.
Corley
'76 Glenbrook
29 other vehicles
[Updated on: Sun, 09 March 2014 10:30] Report message to a moderator |
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| Re: Quietest roof A/C Heat Pump [message #242878 is a reply to message #242761] |
Sun, 09 March 2014 21:39 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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They key point to take away is that you can put the indoor fan on low, but the Outdoor fan stays on high. In the old Dometics with one motor running both fans, you lost cooling heat transfer on the outdoor condenser when you put the fan on low. The dual motor units don't have this problem. Coleman, Carrier, and Attwood. Perhaps Attwood bought the system that Carrier no longer sells and added their own controls. Don't know, but If I could get a look at the innards, I could tell for sure or not. The Carriers were just built better than the crap that Dometic puts out. The airflow path in the indoor fan is at least double the size, and the squirrel cage fan is larger. Dometic products are total crap.
Sooner or later, I will replace the dometic Refrigerator in my TT with the brand new Norcold 3 way sitting in my warehouse that spent only a month in my GMC.
I may even replace the nearly new furnace in my TT with the Suburban I put in my coach in 2010... It is still a noisy fan, but not nearly as loud.
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: Quietest roof A/C Heat Pump [message #242885 is a reply to message #242878] |
Mon, 10 March 2014 05:04 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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| Chr$ wrote on Sun, 09 March 2014 21:39 |
They key point to take away is that you can put the indoor fan on low, but the Outdoor fan stays on high. ...
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Bingo! Duh, I should have realized that. All residential units are split motors and the outside fans run at full speed for max heat/cool transfer. I guess over the noise of the air handler in the coach, I didn't realize it was a single motor.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #245851 is a reply to message #242802] |
Mon, 31 March 2014 06:45 |
mickeysss
Messages: 1476
Registered: January 2012
Karma: 0
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this looks like a good idea will it really work?
http://www.ebay.com/itm/MITSUBISHI-MR-SLIM-MUZ-GE09NA-9-000-BTU-OUTSIDE-UNIT-ONLY-NEW-FREIGHT-DAMAGE-/331152096153?pt=LH_DefaultDomain_0&hash=item 4d1a33fb99
http://www.acdirect.com/xcart/images/products/Mitsu20HPBrochure.pdf
mickey anaheim ca. 77 palm beach
On Mar 8, 2014, at 4:36 PM, Chris Choffat wrote:
>
>
> In My experience, Carrier units. Low profiles specifically, but the are OOP. You will also find it quieter if you duct it, but that means you build ducting in your GMC ceiling. Makes a huge difference. If I ever do an AC uint in a coach again, I will use a Mitusbishi MR slim and mount the outdoor unit on the rear bumper...
>
> --
> -Chr$: Perpetual SmartAss
> Scottsdale, AZ
> 77 Ex-Kingsley Featuring: 455, Power Drive, 3:21, Rockwell, Jim B QJET, Qbag. Now for Sale
> 2010 Nomad 24 Ft Travel Trailer
>
> Photosite: Chrisc "It has Begun"
> _______________________________________________
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #245854 is a reply to message #245851] |
Mon, 31 March 2014 07:22 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Hi, Mickey.
The Mitsubishi split units work very well, but the one below (only half of the system, and damaged at that) is only 9,000 BTU. Most folks find that they need a pair of 13,000 BTU A/C units for use in hot and/or humid climates.
The Mitsubishi split units are NOT ducted. You have the outside (compressor/condenser) unit and the inside (evaporator) unit that run the coolant between them.
I'd say that Chris Choffat's recommendation (below) is a good one.
Check prices with local A/C folks.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> From: mickeysss@me.com
> Date: Mon, 31 Mar 2014 04:45:34 -0700
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Quietest roof A/C Heat Pump
>
> this looks like a good idea will it really work?
>
> http://www.ebay.com/itm/MITSUBISHI-MR-SLIM-MUZ-GE09NA-9-000-BTU-OUTSIDE-UNIT-ONLY-NEW-FREIGHT-DAMAGE-/331152096153?pt=LH_DefaultDomain_0&hash=item 4d1a33fb99
>
> http://www.acdirect.com/xcart/images/products/Mitsu20HPBrochure.pdf
>
> mickey anaheim ca. 77 palm beach
>
>
> On Mar 8, 2014, at 4:36 PM, Chris Choffat wrote:
>
> >
> >
> > In My experience, Carrier units. Low profiles specifically, but the are OOP. You will also find it quieter if you duct it, but that means you build ducting in your GMC ceiling. Makes a huge difference. If I ever do an AC uint in a coach again, I will use a Mitusbishi MR slim and mount the outdoor unit on the rear bumper...
> >
> > --
> > -Chr$: Perpetual SmartAss
> > Scottsdale, AZ
> > 77 Ex-Kingsley Featuring: 455, Power Drive, 3:21, Rockwell, Jim B QJET, Qbag. Now for Sale
> > 2010 Nomad 24 Ft Travel Trailer
> >
> > Photosite: Chrisc "It has Begun"
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #245866 is a reply to message #245854] |
Mon, 31 March 2014 10:13 |
mickeysss
Messages: 1476
Registered: January 2012
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thank you mac. mick o.c. so ca 77 palm beach
On Mar 31, 2014, at 5:22 AM, D C _Mac_ Macdonald wrote:
> Hi, Mickey.
>
>
>
> The Mitsubishi split units work very well, but the one below (only half of the system, and damaged at that) is only 9,000 BTU. Most folks find that they need a pair of 13,000 BTU A/C units for use in hot and/or humid climates.
>
>
>
> The Mitsubishi split units are NOT ducted. You have the outside (compressor/condenser) unit and the inside (evaporator) unit that run the coolant between them.
>
>
>
> I'd say that Chris Choffat's recommendation (below) is a good one.
>
>
>
> Check prices with local A/C folks.
>
>
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ~~ ~ D C "Mac" Macdonald ~ ~~
> ~ ~ Amateur Radio - K2GKK ~ ~
> ~ ~ USAF and FAA, Retired ~ ~
> ~ ~ ~ Oklahoma City, OK ~ ~ ~
> ~~ ~ ~ "The Money Pit" ~ ~ ~~
> ~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
> ~ ~ ~ '76 ex-Palm Beach ~ ~ ~
> ~~ k2gkk + hotmail dot com ~~
> ~ www.gmcmhphotos.com/okclb ~
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ______________
> *[ ]~~~[][ ][|\
> *--OO--[]---O-*
>
>
>
>
>> From: mickeysss@me.com
>> Date: Mon, 31 Mar 2014 04:45:34 -0700
>> To: gmclist@temp.gmcnet.org
>> Subject: Re: [GMCnet] Quietest roof A/C Heat Pump
>>
>> this looks like a good idea will it really work?
>>
>> http://www.ebay.com/itm/MITSUBISHI-MR-SLIM-MUZ-GE09NA-9-000-BTU-OUTSIDE-UNIT-ONLY-NEW-FREIGHT-DAMAGE-/331152096153?pt=LH_DefaultDomain_0&hash=item 4d1a33fb99
>>
>> http://www.acdirect.com/xcart/images/products/Mitsu20HPBrochure.pdf
>>
>> mickey anaheim ca. 77 palm beach
>>
>>
>> On Mar 8, 2014, at 4:36 PM, Chris Choffat wrote:
>>
>>>
>>>
>>> In My experience, Carrier units. Low profiles specifically, but the are OOP. You will also find it quieter if you duct it, but that means you build ducting in your GMC ceiling. Makes a huge difference. If I ever do an AC uint in a coach again, I will use a Mitusbishi MR slim and mount the outdoor unit on the rear bumper...
>>>
>>> --
>>> -Chr$: Perpetual SmartAss
>>> Scottsdale, AZ
>>> 77 Ex-Kingsley Featuring: 455, Power Drive, 3:21, Rockwell, Jim B QJET, Qbag. Now for Sale
>>> 2010 Nomad 24 Ft Travel Trailer
>>>
>>> Photosite: Chrisc "It has Begun"
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: Quietest roof A/C Heat Pump [message #253012 is a reply to message #242761] |
Mon, 23 June 2014 10:45 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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had a trouble free 9 days in the GMC. but that does not make me keep thinking of ways to improve our comfort.
Heat has always been an issue with my GMC, there are lots of things I have done, but the list is long of things i want to do.
I am running original A/C units. 2 of them. they both blow cold air, but I think they could both be better.. I would think running two units should cool the whole coach down in moments, but they both work hard, and are loud. and it is a struggle to make sure we have enough power to run them.
looking at this thread, the atwood, 16500 unit stood out from me, and even thought I note that that is "equivilant", it still shows specs of 13500 BTU. seems like the sales guy who wrote up their sales brochure had GMC owner like me in mind...
says it is quite
says it cools as others(16500 equivilant)
and one thing that really caught my attention. is the "2000 watt generator friendly"
anybody have real world experience with the unit?
http://www.atwoodmobile.com/images/air-conditioners-brochure.pdf
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253033 is a reply to message #242781] |
Mon, 23 June 2014 15:26 |
Richard Brown
Messages: 281
Registered: May 2009
Karma: 1
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We just installed a new Coleman Mach 13,500btu A/C about a week ago in
ours. We got the heat coil for free. It was last year's model, so we paid
$650 for the whole thing, inside unit included. We haven't turned the
thermostat over half-way since we got it. It runs with the compressor on
about 1/3 of the time & that first night we had to adjust it a little
warmer. It froze our backsides off (a mean feat since my wife is
cold-natured). I figure that any unit 13,500 btu or bigger should be more
than enough for anywhere short of the desert in high summer, but your
mileage may vary. We just have the one unit & I'm not sure if it's
high-efficiency or not. Here in East Texas doing without an A/C isn't much
fun.If nothing else, cutting down the humidity helps a lot.
Now 1 big job down, 1 to go. I also got a new toilet to install & I'm not
exactly looking forward to that one...
--
Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, Tx. 75778
(903)469-3197
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Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, TX. 75778
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253078 is a reply to message #253033] |
Mon, 23 June 2014 22:27 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Richard,
I am going to disagree with you a bit, one 13,500 BTU unit can struggle when the temps soar. One 15,000 will make it but here's
something to consider.
You were happy you got the Coleman unit for $650; I know of a GMCer that had his single unit fail while at a rally in Texas, he had
to go to a Camping world where he had a single 13,500 Dometic unit installed at a cost of over $1000.
He shall remain nameless unless he wants to volunteer his name.
This is why I bought two 13,500 BTU Dometic units from AdventureRV for $1050 delivered to Humble several years ago. If one dies I
have a backup.
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
PS - BTW I reckon the quietest unit was the Carrier, however, since they are no longer available the point is moot.
-----Original Message-----
From: Richard Brown
We just installed a new Coleman Mach 13,500btu A/C about a week ago in
ours. We got the heat coil for free. It was last year's model, so we paid
$650 for the whole thing, inside unit included. We haven't turned the
thermostat over half-way since we got it. It runs with the compressor on
about 1/3 of the time & that first night we had to adjust it a little
warmer. It froze our backsides off (a mean feat since my wife is
cold-natured). I figure that any unit 13,500 btu or bigger should be more
than enough for anywhere short of the desert in high summer, but your
mileage may vary. We just have the one unit & I'm not sure if it's
high-efficiency or not. Here in East Texas doing without an A/C isn't much
fun.If nothing else, cutting down the humidity helps a lot.
Now 1 big job down, 1 to go. I also got a new toilet to install & I'm not
exactly looking forward to that one...
Richard & Carol
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253081 is a reply to message #253078] |
Mon, 23 June 2014 23:53 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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There is a new unit by Atwood that will outcool all units.
It is quit as they have a separate motor for condenser and evaporator.
They rate their 13500BTU unit as 16000, and their 150000 nit is rated
180000.
We have been selling them delivered for les than $500beach.
Since we attend the RV Supplier shows, we know the latest products.
We have been selling several Norcold unit delivered price all over the USA
at prices that are really low.
On Mon, Jun 23, 2014 at 8:27 PM, Rob Mueller
wrote:
> Richard,
>
> I am going to disagree with you a bit, one 13,500 BTU unit can struggle
> when the temps soar. One 15,000 will make it but here's
> something to consider.
>
> You were happy you got the Coleman unit for $650; I know of a GMCer that
> had his single unit fail while at a rally in Texas, he had
> to go to a Camping world where he had a single 13,500 Dometic unit
> installed at a cost of over $1000.
>
> He shall remain nameless unless he wants to volunteer his name.
>
> This is why I bought two 13,500 BTU Dometic units from AdventureRV for
> $1050 delivered to Humble several years ago. If one dies I
> have a backup.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> USAussie - Downunder
> USA '75 Avion - Double Trouble TZE365V100426
> AUS '75 Avion - The Blue Streak TZE365V100428
>
> PS - BTW I reckon the quietest unit was the Carrier, however, since they
> are no longer available the point is moot.
>
>
> -----Original Message-----
> From: Richard Brown
>
> We just installed a new Coleman Mach 13,500btu A/C about a week ago in
> ours. We got the heat coil for free. It was last year's model, so we paid
> $650 for the whole thing, inside unit included. We haven't turned the
> thermostat over half-way since we got it. It runs with the compressor on
> about 1/3 of the time & that first night we had to adjust it a little
> warmer. It froze our backsides off (a mean feat since my wife is
> cold-natured). I figure that any unit 13,500 btu or bigger should be more
> than enough for anywhere short of the desert in high summer, but your
> mileage may vary. We just have the one unit & I'm not sure if it's
> high-efficiency or not. Here in East Texas doing without an A/C isn't much
> fun.If nothing else, cutting down the humidity helps a lot.
> Now 1 big job down, 1 to go. I also got a new toilet to install & I'm not
> exactly looking forward to that one...
>
> Richard & Carol
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253083 is a reply to message #242781] |
Tue, 24 June 2014 00:25 |
Richard Brown
Messages: 281
Registered: May 2009
Karma: 1
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Senior Member |
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I wish I could've gotten one of those, but unfortunately I had go get one
locally since we live out in a rural area where shipping may have been
pricey. With Carol's arthritis not allowing her to be without A/C for any
length of time it was important to move fast. She had to stay with my
daughter while it was down. I got a neighbor to use his tractor front end
bucket to exchange the top unit & to get me up there( one-leg & ladders are
a bad combination), but I got it done. You do what you have to out here in
the woods. It'll do for the time being. The old original unit kept it
pretty cool. Besides, about 20 degrees reduction in tep inside is about as
good as can be reasonably expected.
--
Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, Tx. 75778
(903)469-3197
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Richard & Carol Brown
1974 Eleganza SE
1174 Hickory Hills Dr.
Murchison, TX. 75778
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253105 is a reply to message #253081] |
Tue, 24 June 2014 08:51 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Jim,
Dometic is rating their 13,500 BTU Brisk Air II units as "equivalent to" 16,000 BTU and quite frankly I don't understand that. To me
an A/C unit delivers a 13,500 BTU OR 16,000 BTU. Maybe you can get Atwood to explain what that means for their units.
The reason I went with Dometic Brisk Air units is because they call them "hi-efficiency" (or some such term) and the 6000 Watt Onan
can run both of them at the same time along with the fridge, microwave, water heater, convertor, and wall plugs. Emery and I
verified that the year before last when he helped me get the Onan running correctly.
Also does the price you've noted below include the interior part that attaches to the ceiling?
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
-----Original Message-----
From: Jim Kanomata
There is a new unit by Atwood that will outcool all units.
It is quit as they have a separate motor for condenser and evaporator.
They rate their 13500BTU unit as 16000, and their 150000 nit is rated
180000.
We have been selling them delivered for les than $500beach.
Since we attend the RV Supplier shows, we know the latest products.
We have been selling several Norcold unit delivered price all over the USA
at prices that are really low.
Jim
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Quietest roof A/C Heat Pump [message #253112 is a reply to message #242761] |
Tue, 24 June 2014 09:59 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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Rob,
I might have to give Jim a call. might get the wife to let me use the credit card at that price if it includes the whole kit and kaboodle to the door.
what really caught my eye like I mentioned, is the 13,500/16000equivilant atwood states it is the only 2000w generator compatable. that to me is a huge selling point.
I have two original A/C units that run off the onan, but if I can run 1 A/C unit off a small $600-$1000 inverter generator, when I dry camp, that would be a huge plus.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253120 is a reply to message #253112] |
Tue, 24 June 2014 10:33 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Jon,
I vaguely remember reading something here about running roof air's off an inverter generator, I think they didn't like the high
starting current drawn by the compressor.
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
-----Original Message-----
From: Jon Roche
Rob,
I might have to give Jim a call. might get the wife to let me use the credit card at that price if it includes the whole kit and
kaboodle to the door.
what really caught my eye like I mentioned, is the 13,500/16000equivilant atwood states it is the only 2000w generator compatable.
that to me is a huge selling point.
I have two original A/C units that run off the onan, but if I can run 1 A/C unit off a small $600-$1000 inverter generator, when I
dry camp, that would be a huge plus.
-
75 palm beach
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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GMCnet mailing list
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Quietest roof A/C Heat Pump [message #253121 is a reply to message #242761] |
Tue, 24 June 2014 11:07 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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Rob,
I would think you are right for most air conditioners. but take a look at the very bottom left corner of their brochure. Claiming to be 2000watt generator friendly is a bold statement.
http://www.atwoodmobile.com/images/air-conditioners-brochure.pdf
so I was hoping there was someone that has one installed, and has run it off a 2000watt honda generator or equivalent successfully.
it shows it takes 11.3 / 1270 watts to amps to run it. so that leaves some room for startup.
here is some more sales propaganda I have found via google:
http://www.tvformyrv.com/content/AtwoodACPresentation2014.pdf
now if 10 people send me $50, I would be happy to test this in a GMC and provide results... but I might be talking to the wife about the credit card later.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: Quietest roof A/C Heat Pump [message #253172 is a reply to message #242761] |
Tue, 24 June 2014 19:28 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Another take on mini splits, I had considered modifying the outdoor unit by rotating the compressor 90 degrees so I could lay it down on the roof. If my current roof air ever dies, I will do this. I did see one mounted on a box truck in europe once.
I will also look for the largest unit I can get and run on 110v, as when you get up in size, they need 220v. Perhaps one could put the two halves on two separate circuits. I have not looked inside any of these to really know what mods will work and what will not.
I do think a 9-11K BTU mini split will cool much better than any 15K RV unit...
Somebody asked about the inside part of the RV units. It is called a "Free Blow Trim Unit" if like what you all have or a "Ducted Trim" if ducted (What I have). Either way. they are usually sold separately for about $100.
A buddy of mine just bought a brand new free blow trim to use with the 1994 vintage duo therm I gave him. It also has the 1975 vintage fiberglass cover from a GMC unit. the holes line up perfectly with the 40 year old cover, and the electrical connectors are the same 20 years later. They all still work the same way. They have sucked for 40 years, but at least new parts fit.
-Chr$: 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"
[Updated on: Tue, 24 June 2014 19:29] Report message to a moderator |
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253183 is a reply to message #253172] |
Tue, 24 June 2014 20:33 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Chris,
"I do think a 9-11K BTU mini split will cool much better than any 15K RV unit."
Nope, sorry.
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
-----Original Message-----
From: Chris Choffat
Another take on mini splits, I had considered modifying the outdoor unit by rotating the compressor 90 degrees so I could lay it
down on the roof. If my current roof air ever dies, I will do this. I did see one mounted on a box truck in europe once.
I will also look for the largest unit I can get and run on 110v, as when you get up in size, they need 220v. Perhaps one could put
the two halves on two separate circuits. I have not looked inside any of these to really know what mods will work and what will not.
I do think a 9-11K BTU mini split will cool much better than any 15K RV unit...
Somebody asked about the inside part of the RV units. It is called a "Free Blow Trim Unit" if like what you all have or a "Ducted
Trim" if ducted (What I have). Either way. they are usually sold separately for about $100.
A buddy of mine just bought a brand new free blow trim to use with the 1994 vintage duo therm I gave him. It also has the 1997
vintage fiberglass cover from the GMC. the holes line up perfectly with the 40 year old cover, and the electrical connectors are the
same 20 years later. They all still work the same way. They have sucked for 40 years, but at least new parts fit.
Chr$:
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GMCnet mailing list
Unsubscribe or Change List Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Quietest roof A/C Heat Pump [message #253303 is a reply to message #253183] |
Thu, 26 June 2014 00:57 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Go to our web site and see some of the example of or pricing.
Doesnot make any difference where you live in USA.
Call us for price quote , need your Zip code.
On Tue, Jun 24, 2014 at 6:33 PM, Rob Mueller
wrote:
> Chris,
>
> "I do think a 9-11K BTU mini split will cool much better than any 15K RV
> unit."
>
> Nope, sorry.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> USAussie - Downunder
> USA '75 Avion - Double Trouble TZE365V100426
> AUS '75 Avion - The Blue Streak TZE365V100428
>
>
> -----Original Message-----
> From: Chris Choffat
>
> Another take on mini splits, I had considered modifying the outdoor unit
> by rotating the compressor 90 degrees so I could lay it
> down on the roof. If my current roof air ever dies, I will do this. I did
> see one mounted on a box truck in europe once.
>
> I will also look for the largest unit I can get and run on 110v, as when
> you get up in size, they need 220v. Perhaps one could put
> the two halves on two separate circuits. I have not looked inside any of
> these to really know what mods will work and what will not.
>
>
> I do think a 9-11K BTU mini split will cool much better than any 15K RV
> unit...
>
> Somebody asked about the inside part of the RV units. It is called a "Free
> Blow Trim Unit" if like what you all have or a "Ducted
> Trim" if ducted (What I have). Either way. they are usually sold
> separately for about $100.
>
> A buddy of mine just bought a brand new free blow trim to use with the
> 1994 vintage duo therm I gave him. It also has the 1997
> vintage fiberglass cover from the GMC. the holes line up perfectly with
> the 40 year old cover, and the electrical connectors are the
> same 20 years later. They all still work the same way. They have sucked
> for 40 years, but at least new parts fit.
>
> Chr$:
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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