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06-14-2020, 10:24 AM
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#1
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Winnebago Camper
Join Date: May 2020
Posts: 18
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A/C Soft Start Intall?
Has anyone installed either soft start or easy start on their 30 Amp Air Conditioner? Based on the videos I've watched they slow the surge when the AC kicks on. This would allow you to run your AC of a 110 volt 15 amp service while mooch docking. We're thinking of installing one on our Outlook.
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06-14-2020, 10:33 AM
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#2
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by GJOoutlook31
Has anyone installed either soft start or easy start on their 30 Amp Air Conditioner? Based on the videos I've watched they slow the surge when the AC kicks on. This would allow you to run your AC of a 110 volt 15 amp service while mooch docking. We're thinking of installing one on our Outlook.
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The AC isn't actually 30 amp. The bigger problem starting ACs may be mainly with smaller generators. I somewhat doubt you have a problem starting from 15 amp, but I don't have a lot of experience trying that. I'm assuming nothing else on the house's 15 amp circuit. Think of it as being like running a larger window air conditioner in a house. So the first step would be to just try it. Or maybe before that get some idea of the electrical draw of the AC unit.
One other option would to install either a 20 amp (110 volt) or 30 amp (220 volt) outlet near the breaker box. That could be relatively inexpensive, although permits might add another couple hundred dollars. Planned right though it might allow use of an electric car charger for future use, and thus improve resale value of the house. This assumes the breaker box can handle either a 110 or 220 volt additional circuit. That could be a problem with some older boxes.
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2019 2106 DS
2019 Colorado Duramax
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06-14-2020, 10:42 AM
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#3
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Site Team
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 7,826
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Quote:
Originally Posted by Goodspike
The AC isn't actually 30 amp.
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This is true... BUT. Most folks bring the RV home, plug it into a 15-amp outlet and don't stop to think about the other things using that shore power.
Many have their RV Fridge on "auto" so it' switches to electric. And, the converter/charger swings into action adding amps to the RV's batteries.
The A/C will probably run on 12 to 13 amps, but a starting jolt can easily top 30 amps momentarily. This is what taxes the home 15-amp connection and the small generator, as well.
A soft start can help tremendously with this issue and help your A/C's compressor all the time - at home or on the road.
There are a lot of YouTube videos of these installs. Just do a search for whatever brand you're planning to use and I'll bet there is an install video out there.
__________________
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
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06-14-2020, 10:51 AM
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#4
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by creativepart
This is true... BUT. Most folks bring the RV home, plug it into a 15-amp outlet and don't stop to think about the other things using that shore power.
The A/C will probably run on 12 to 13 amps, but a starting jolt can easily top 30 amps momentarily. This is what taxes the home 15-amp connection and the small generator, as well.
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But the difference is the home system will provide that current--for a short time, where the generator simply cannot. Good points about not having other stuff on! Furnace fan, electric water heater, microwave all should be off.
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2019 2106 DS
2019 Colorado Duramax
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06-14-2020, 11:41 AM
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#5
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Winnebago Camper
Join Date: May 2020
Posts: 18
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I installed a 30 Amp hookup at my house and it works fine, However before I installed it when I connected my RV to the house it could not handle the AC, everything else works. We will be mooch docking this summer this at relatives in the mid-west, hot and humid. Will the the soft start or easy start allow us to run the AC off a 15 amp circuit?
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06-14-2020, 12:29 PM
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#6
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Getting back to the soft start that the OP asked about, which the answers indicate would help the OP's situation . . . does anyone have a favorite brand to recommend, or a brand to avoid.
__________________
2019 2106 DS
2019 Colorado Duramax
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06-14-2020, 12:45 PM
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#7
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Winnebago Master
Join Date: Nov 2018
Location: Pflugerville/Austin, Tx
Posts: 7,516
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Understanding the problems it may give the AC might help as it is not a sudden puff of smoke that we can all see when we try it.
When any motor of this sort starts, it is a near zero resistance until the parts get moving as the motor turns. So when the compressor starts to move it needs to jump up to move quickly as there is a lot of current flowing through the small wire windings at first. This excessive current flow causes the wires to heat more than normal running, so if we try to start a motor when the voltage swings really low and do it often enough, we begin to melt the covering on the wires as it is often more like paint or shellac than insulation on most wires.
That is where the term for motors "burning out" comes in!
I do not want to get talked into any new "magic" fixes that I see advertised when I know that repeated abuse may cost me a new compressor on the AC.
Careful about trusting sales pitches.
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Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!
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06-14-2020, 12:54 PM
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#8
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by Morich
Careful about trusting sales pitches.
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Are you saying you don't trust these devices? I've yet to install one on my new trailer and have been skeptical since the manufacturers don't install them. That's why I've been looking at things like hybrid inverters.
__________________
2019 2106 DS
2019 Colorado Duramax
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06-14-2020, 02:13 PM
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#9
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Winnebago Master
Join Date: Nov 2018
Location: Pflugerville/Austin, Tx
Posts: 7,516
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Can't say I don't trust them, just normal to be somewhat slow to adopt things that are advertised without too many details. Just not convinced of the need for something I don't know much about.
Using 15 amp to run an AC? Seems it is never done in any other place like houses, so I'm inclined to wait and see.
Not something that I have a use for, so never looked further. Neither for nor against at this point so just recommending careful thought.
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!
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06-14-2020, 02:25 PM
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#10
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by Morich
Not something that I have a use for, so never looked further. Neither for nor against at this point so just recommending careful thought.
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I'm mainly interested because I've yet to buy a small generator. My 3000 watt tri-fuel would be perfect, but it's too damn big and too damn heavy!
I'm thinking about getting this generator just to have a few extra watts over the smaller generators, but I'd like to open up the generator options.
https://www.amazon.com/dp/B086Q3M7B5...v_ov_lig_dp_it
__________________
2019 2106 DS
2019 Colorado Duramax
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06-14-2020, 04:08 PM
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#11
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Winnie-Wise
Join Date: Apr 2017
Location: South Central, Pennsylvania
Posts: 446
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GJOoutlook31, I installed an Easy Start on our Dometic 13.5 A/C so we could reliably start and run it using our Honda 2200 generator. We've mooch docked and ran the A/C off a dedicated 20 amp house circuit with no problems, but I don't believe we've tried it on a 15 amp house circuit. I installed a dedicated 30 amp/120V RV circuit at home.
I know Easy Start has a FAQ section, you may want to check that out. What size is your A/C? 13.5 or 15
__________________
2016 Winnebago Micro Minnie 2106DS, 200Ah BB, 400w rooftop & 500w front cap solar
2020 Tundra SR5 DLCB TRD Off Road, 5.7L V8 w/6.5' bed & 38 gal. tank, 4.30 axle ratio
Blue Ox Sway Pro w/750# bars, wired RVS rear view camera, Renogy 20A DC/DC charger
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06-15-2020, 09:20 AM
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#12
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by Fred 2106DS
GJOoutlook31, I installed an Easy Start on our Dometic 13.5 A/C so we could reliably start and run it using our Honda 2200 generator.
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Had you tried it before the Easy Start with that generator?
__________________
2019 2106 DS
2019 Colorado Duramax
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06-16-2020, 05:08 PM
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#13
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Winnie-Wise
Join Date: Apr 2017
Location: South Central, Pennsylvania
Posts: 446
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Quote:
Originally Posted by Goodspike
Had you tried it before the Easy Start with that generator?
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I don't believe I did. If I did, I don't remember. Sorry, that was a couple years ago.
__________________
2016 Winnebago Micro Minnie 2106DS, 200Ah BB, 400w rooftop & 500w front cap solar
2020 Tundra SR5 DLCB TRD Off Road, 5.7L V8 w/6.5' bed & 38 gal. tank, 4.30 axle ratio
Blue Ox Sway Pro w/750# bars, wired RVS rear view camera, Renogy 20A DC/DC charger
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06-21-2020, 06:36 PM
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#14
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Winnebago Owner
Join Date: Nov 2018
Posts: 145
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Quote:
Originally Posted by GJOoutlook31
I installed a 30 Amp hookup at my house and it works fine, However before I installed it when I connected my RV to the house it could not handle the AC, everything else works. We will be mooch docking this summer this at relatives in the mid-west, hot and humid. Will the the soft start or easy start allow us to run the AC off a 15 amp circuit?
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I suspect another issue and likely with your newly installed hook-up. Verify the correct wire gauge used for the distance of the run.
Do you have an EMS (electrical mangement system)? If so, it will display the line voltage and should protect your unit from surges.
If no EMS, check the newly run hookup; measure the voltage at the outlet without the coach connected. You should be at 120 volt, no lower than 110.
Then, connect the coach and place lite electrical load and check your volts. Since you stated you installed the 30 amp service , I assume you have an amp meter. Check your amp draw as you place additional load.
The soft start will aide to starting your A/C unit but should not be used to supplement low voltage.
Bobby
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2019 View 24V
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06-22-2020, 06:59 AM
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#15
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Happy Camper
Join Date: May 2014
Location: Raeford, NC
Posts: 41
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I installed two Easy Start circuit boards in my two A/C heat pumps and they work great with my 5500 Genset, no more drag on Genset at start up.
I picked the non boxed circuit board type because they were 100 bucks cheaper. They were a bit more work to install but well worth the savings. Before you buy the board units make sure you have a enclosed place in the A/C unit to install them. Looking forward to mooching off my in-law's summer house power this year. lol If anyone has any questions please just ask.
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06-22-2020, 09:20 AM
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#16
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Winnebago Master
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 2,737
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Quote:
Originally Posted by Goodspike
The AC isn't actually 30 amp. The bigger problem starting ACs may be mainly with smaller generators. I somewhat doubt you have a problem starting from 15 amp, but I don't have a lot of experience trying that. I'm assuming nothing else on the house's 15 amp circuit. Think of it as being like running a larger window air conditioner in a house. So the first step would be to just try it. Or maybe before that get some idea of the electrical draw of the AC unit.
One other option would to install either a 20 amp (110 volt) or 30 amp (220 volt) outlet near the breaker box. That could be relatively inexpensive, although permits might add another couple hundred dollars. Planned right though it might allow use of an electric car charger for future use, and thus improve resale value of the house. This assumes the breaker box can handle either a 110 or 220 volt additional circuit. That could be a problem with some older boxes.
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30A RV service is 120VAC. Too many electricians have found this out the hard way by having to pay for repairs to the RV they cooked. 50A service is 240VAC.
Another way of looking at this. A 30A RV is just that. You are limited to 30A of AC appliance current. A 50A RV is 100A of available current on 2 50A circuits. In reality we are limited to 80% by law. In practice I have seen my coach draw nearly full load for short periods of time on 50A service.
__________________
Rick & Melissa Young & Dawson (RIP), 2011 Meridian 40U, FL XCL, ISL 380HP/DEF, Al 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox TruCenter & tow equip.,EEZTire TPMS.
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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06-22-2020, 09:28 AM
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#17
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Winnebago Master
Join Date: Jan 2020
Posts: 1,354
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Quote:
Originally Posted by jerichorick
30A RV service is 120VAC. Too many electricians have found this out the hard way by having to pay for repairs to the RV they cooked. 50A service is 240VAC..
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My mistake--we'd been dealing with 30 amp dryer connections too and so that's what I was thinking about. Those are 220, but yes the RV 30 amp outlets are 110.
__________________
2019 2106 DS
2019 Colorado Duramax
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