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Old 08-20-2013, 07:27 AM   #29
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Glad you found it.

Lots of things to remember.

One can force the refer to propane by choosing LP instead of auto.

And, can still have hot water by using propane.

Your pair of EU2000i should be happy.

Look at an extended run fuel tank. We have one that can be connected to both units.

It is a handy way to transport fuel, and not have to refuel the gensets to often.

Regards,

JD
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Old 08-20-2013, 02:51 PM   #30
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There's your answer.....you need what is also referred to as a "hard start capacitor" installed on the AC unit itself.
Easy to install by an AC tech and the part is not very expensive.
A little bit off thread, but do any of you find that a hard start capacitor is beneficial when in a park with relatively low voltage? I noted this summer at several parks where the voltage was down around 108V, the A/C seemed to struggle to start up. Not bad....just labored a bit when the compressor would come on. Make sense?
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Old 08-20-2013, 07:39 PM   #31
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A voltage regulator is what is wanted for low park power: FRANKS, HUGHES or POWERMASTER. Also called power booster, etc.

Other threads on this. I was going to go with a hardwired unit, but after another here had his burn up, I'll stick with one I can place under bumper (and cable lock it).

I've used 5-2-1 starters on home A/C units, but I gues we should ask Vernon what he used on his (brand? capacity?) roof A/C unit.

.
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Old 08-21-2013, 05:11 PM   #32
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Originally Posted by dznf0g View Post
A little bit off thread, but do any of you find that a hard start capacitor is beneficial when in a park with relatively low voltage? I noted this summer at several parks where the voltage was down around 108V, the A/C seemed to struggle to start up. Not bad....just labored a bit when the compressor would come on. Make sense?
A friend of mine who is an A/C tech said it's a shame for any A/C to not have a good start capacitor on it. They're cheap and make your a/c a lot happier even with good voltage. It does not FIX low voltage and that is a serious problem, but it will help from drawing the voltage down even lower.
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Old 08-21-2013, 05:53 PM   #33
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What was the fix for his problem?

Perry
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Old 08-21-2013, 09:18 PM   #34
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Originally Posted by slowmover View Post
A voltage regulator is what is wanted for low park power: FRANKS, HUGHES or POWERMASTER. Also called power booster, etc.

Other threads on this. I was going to go with a hardwired unit, but after another here had his burn up, I'll stick with one I can place under bumper (and cable lock it).

I've used 5-2-1 starters on home A/C units, but I gues we should ask Vernon what he used on his (brand? capacity?) roof A/C unit.

.
Starting caps are a trade off. My unit, with the 20 year old cap would cause a serious 'grrr' every time the compressor started. A rather Manly sound but required some serious short term amps that campground power could suck up but would knock a genset to its knees. Once running, the amp draw was low. An 'easy start cap' is available (google it) and it eases the compressor up to speed, the down side is that when its running, the current draw is slightly higher and it causes the compressor to run hotter.

Goofy stuff having to do with capacitance, impedance, lead, lag and AC current.

Burp.
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Old 08-21-2013, 11:03 PM   #35
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Starting caps are a trade off. My unit, with the 20 year old cap would cause a serious 'grrr' every time the compressor started. Burp.
A 20 year old starter cap is going to be dead and working against you. No help on startup and converting amps to heat while running. Try a new one, I bet it sounds and works better.
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Old 08-22-2013, 12:32 PM   #36
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Arrow Dometic A/C unit: hard start kit

RV Air Conditioner Hard Start Capacitor | ModMyRV

installing hard start kit on Dometic A/C unit: so easy a cave man can do it..

we uses to install them on older units where the compressor motor was starting to show age.. it helped up the power for starting especially on hot summer days in NC.

they are very easy to install just hook up wire to existing terminals.
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Old 09-05-2013, 10:12 AM   #37
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Quote:
Originally Posted by HiHoAgRV View Post
I had the same problem, it turned out my starting cap was marginal. I changed to an easy start kit and now the dual 2000's have no problem kicking the 13500 off.
Hi Vernon, what is a starting cap? How do you get one?
Thanks!
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Old 09-05-2013, 11:12 AM   #38
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Originally Posted by carl2591 View Post
RV Air Conditioner Hard Start Capacitor | ModMyRV

installing hard start kit on Dometic A/C unit: so easy a cave man can do it..

we uses to install them on older units where the compressor motor was starting to show age.. it helped up the power for starting especially on hot summer days in NC.

they are very easy to install just hook up wire to existing terminals.
Great link Carl!
Here's a link to the Cap referenced on that page.

Supco SPP6E E Series Electronic Potential Relay Style Hard Start Kit, 1/2 - 3 Horsepower Range, 88-106F Capacitor Size: Amazon.com: Industrial & Scientific
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Old 09-05-2013, 06:59 PM   #39
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Hi Vernon, what is a starting cap? How do you get one?
Thanks!
After a bunch of Googling, I decided to stick with a factory kit instead of aftermarket...

I believe this is the kit I bought at my local RV shop.

Dometic Duo-Therm Brisk Air Conditioner Motor Hard Start Kit - $2..

I strongly suggest you do a bunch of research, even Dometic says not to use their own kit on some AC units
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