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 > 30AMP- 1 AC, does it matter which one?

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kmb1966

Houston

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Posted: 05/20/08 09:06am Link  |  Quote  |  Print  |  Notify Moderator

D.R.Bain wrote:

I have a 07 DayBreak with only a 30 amp service. If I run the generator I can run both ACs But if I connect to shore power I can only run one or the other. Is it possible top convert it to 50 amp and how easy would it be? I have some knowledge in electronics and electrical fields.

Seriously ... you don't need to do that (convert to 50amp). I have a 30 amp coach, and installed the dual power adapter. It works perfect!
You will have 2 shore cords: Plug 1 into the 30 amp service or 50 amp service with the dogbone, and the other shore cord into the 20 amp outlet or the 30amp outlet with the 30->20 amp adapter. In effect be doing what you are already doing with the generator running. The second shore cord taps into the 20 amp circuit that your generator currently energizes. Get this thing installed and your 30 amp service worries are over for good.

JohnMo

Kentucky

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Posted: 05/20/08 09:37am Link  |  Quote  |  Print  |  Notify Moderator

kmb1966 wrote:

D.R.Bain wrote:

I have a 07 DayBreak with only a 30 amp service. If I run the generator I can run both ACs But if I connect to shore power I can only run one or the other. Is it possible top convert it to 50 amp and how easy would it be? I have some knowledge in electronics and electrical fields.

Seriously ... you don't need to do that (convert to 50amp). I have a 30 amp coach, and installed the dual power adapter. It works perfect!
You will have 2 shore cords: Plug 1 into the 30 amp service or 50 amp service with the dogbone, and the other shore cord into the 20 amp outlet or the 30amp outlet with the 30->20 amp adapter. In effect be doing what you are already doing with the generator running. The second shore cord taps into the 20 amp circuit that your generator currently energizes. Get this thing installed and your 30 amp service worries are over for good.


Or, for less money if you are knowledgable in the electrical field, find the junction box where the two circuits from you generator are tied into the two circuits for your coach and break into the rear A/C circuit. I patched a male extension cord end onto the A/C line and a female end onto the generator feed. Running the generator, plug them together. At the campground, unplug from the generator and run an extension cord (second connection) from the rear A/C circuit to the park service.

wa8yxm

Wherever I happen to park

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Posted: 05/20/08 10:08am Link  |  Quote  |  Print  |  Notify Moderator

I recommend against cheater boxes.. They can get you evicted from a park which has rules against them (Some do) I suggest instead [url]http://www.psrv.net[/net]

Now... As for the question asked

What you suggest will do no harm. Over all wear and tear will be nearly identical. The only difference is if you use say "Zone 1" 80 percent of the time and zone 2 the other 20, the Zone 1 AC will, in theory, wear out faster but then since it's doing, in this example 4 times the work you'd expect that

if you only used zone 1, then the zone 2 machine would never wear out now would it (It would however go bad from lack of use, With A/C units "Use it or loose it" applies, However in Detroit Today... We don't need it )


Nothin adds excitment like something that is none of your business
John is Near Kenwood TS-2000 housed in a 2005 Damon Intruder 377


kmb1966

Houston

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Posted: 05/20/08 10:15am Link  |  Quote  |  Print  |  Notify Moderator

JohnMo wrote:

kmb1966 wrote:

D.R.Bain wrote:

I have a 07 DayBreak with only a 30 amp service. If I run the generator I can run both ACs But if I connect to shore power I can only run one or the other. Is it possible top convert it to 50 amp and how easy would it be? I have some knowledge in electronics and electrical fields.

Seriously ... you don't need to do that (convert to 50amp). I have a 30 amp coach, and installed the dual power adapter. It works perfect!
You will have 2 shore cords: Plug 1 into the 30 amp service or 50 amp service with the dogbone, and the other shore cord into the 20 amp outlet or the 30amp outlet with the 30->20 amp adapter. In effect be doing what you are already doing with the generator running. The second shore cord taps into the 20 amp circuit that your generator currently energizes. Get this thing installed and your 30 amp service worries are over for good.


Or, for less money if you are knowledgable in the electrical field, find the junction box where the two circuits from you generator are tied into the two circuits for your coach and break into the rear A/C circuit. I patched a male extension cord end onto the A/C line and a female end onto the generator feed. Running the generator, plug them together. At the campground, unplug from the generator and run an extension cord (second connection) from the rear A/C circuit to the park service.

True. I consider myself a real BONE-HEAD when it comes to electricity so, I ordered the adapter from Power Solutions, and they walked me through it step by step and the printed directions were darn near idiot proof. So for me it was well worth the money and peace of mind that it was installed correctly. Besides the adapter itself's price is a drop in the bucket compared to a tank of fuel in the rig these days.

dougrainer

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Posted: 05/20/08 10:35am Link  |  Quote  |  Print  |  Notify Moderator

John & Angela wrote:

The cheater box refered to above will allow you to use two 30 amp services (or a 15 and 30). However an issue that may pop up is the RV park may not allow you to use power from the adjacent site.

By the way if your 13500 BTU is drawing 14 to 15 amps it probably has problems or really dirty coils. Properly maintained 13500 AC should only be using around 10 amps once it is running. 30 amp service should have no problem running two 30 amp AC's as long as they don't start at the same time.


Newmar uses Dometic AC units and the 13.5k whether Low Profile or Brisk Air will pull about 15 amps on Hi Fan/Cool. That is its rating at 95 degrees. At 75 degrees it will pull 13 amps. You are thinking of the RVP low power units that pull about 10 amps. To the original poster. Newmar uses a common AC duct. During the day run the front AC and at night run the rear AC. But, when running 1 AC put the other AC on Low Fan only to help draw colder air to the other zone. Doug

fireman50

Tennessee

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Posted: 05/20/08 10:48am Link  |  Quote  |  Print  |  Notify Moderator

I just run the front unit because it is ducted and I can close vents to evenly distribute the air to the entire coach.

Hurricaner

Hurricane Utah

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Posted: 05/20/08 11:39am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

During the day run the front AC and at night run the rear AC. But, when running 1 AC put the other AC on Low Fan only to help draw colder air to the other zone. Doug

Doug maybe these units are different from mine but on my unit the front A/C fan will actually hinder the rear A/C flow as it pressurizes the front ducts with return air from the front of the unit. Mine works better with one A/C on or both but not with one on fan.

If the A/Cs were mounted close together(which maybe they are) I could see your point.

Sam


Sam & Kari
Hurricane, Utah


2004 34' Damon Challenger 315

dougrainer

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Posted: 05/20/08 11:52am Link  |  Quote  |  Print  |  Notify Moderator

Hurricaner wrote:

Quote:

During the day run the front AC and at night run the rear AC. But, when running 1 AC put the other AC on Low Fan only to help draw colder air to the other zone. Doug

Doug maybe these units are different from mine but on my unit the front A/C fan will actually hinder the rear A/C flow as it pressurizes the front ducts with return air from the front of the unit. Mine works better with one A/C on or both but not with one on fan.

If the A/Cs were mounted close together(which maybe they are) I could see your point.

Sam


Newmar units (Duct work) are very different from almost all the rest of the RV makers. They have NO center Filter intake. They have 7 to 9 round intakes and the same exhaust. So, when running 1 AC and the other on Low Fan, you actually get a better distribution of Air. Doug

decan9

Oceanside, CA

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Posted: 05/20/08 12:03pm Link  |  Quote  |  Print  |  Notify Moderator

My manual says, run the generator and plug in to campsite, when using both AC's, using both inputs.


Bonnie and me and Casey makes three!
Staying warm in Southern California
FMCA #402157
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klm

SIOUX FALLS, SD

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Posted: 05/20/08 12:04pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks, especially Doug. I never thought about running the fan, makes sense for Newmar. OP, Kathy


'02 KOUNTRY STAR DP
'04 PT CRUISER INFERNO RED
LUCKY THE TRAVELIN'BLACK CAT


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