Which air conditioners will a Honda EU20i run

Submitted: Sunday, Nov 26, 2006 at 18:09
ThreadID: 39790 Views:22387 Replies:6 FollowUps:11
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Just purchased a Honda Eu20i Generator as a pre-requisite for getting an air-conditioner for my van.

At the show where I bought it it was running a Aircommand Heron 2.2 all was ok.
I was at my uncles earlier today and was suprised to hear his Eu20i would not run a Coleman rooftop airconditioner.(not sure of the exact model but its on a 20ft van)

I'm a bit worried as I thought these honda's would basically run anything within reason.

Can you please indicate which brand and model of air-conditioner your Eu20i will run.

Thanks in Advance....

Darren

P.S. - particularly interested in if it will run a Aircommand Wren
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Reply By: Member - Andrew (QLD) - Sunday, Nov 26, 2006 at 19:22

Sunday, Nov 26, 2006 at 19:22
The Honda EU20i is rated for 1600w, (with a max of 2000w for a short period of time)........the Coleman Air Conditioners are rated at 1800-1820w (heating/cooling values), therefore it will not work.

The Aircommand Heron 2.2 is rated for 960-1560w (cooling/heating values) so will run on the Honda genset.

Make sure you check out the "maximum rated current" or the "running watts" on the specs on the item's label(in this case, A/C), usually on the side or back of it and keep this below 1600w or ~6.67A for continuous operation.

What we do is write on top of our gensets 1600w etc to remind everyone what the maximum power rating of the genset is.......numbers like EU20i are misleading somewhat these days.

Hope that explains why it doesn't work.......without getting into too much debate on other electrical stuff :-)

Andrew
AnswerID: 206981

Follow Up By: Darren W - Sunday, Nov 26, 2006 at 20:01

Sunday, Nov 26, 2006 at 20:01
Andrew,

thanks for your prompt response, I'm aware of a lot of the electrical stuff however you may be able to shed some light on some specs which don't add up in what I understand....

Heron 2.2. from the web site states.
Nominal Cooling capacity 2.7kw
Maximum rated current - cooling 4.0A

4.0A x 240V = 960W....which is I assume how you get your number .... so what does the 2.7kw refer too ??

Darren

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FollowupID: 466980

Follow Up By: Member - Andrew (QLD) - Sunday, Nov 26, 2006 at 20:22

Sunday, Nov 26, 2006 at 20:22
I don't understand what they mean in an Air Con environment, someone else may help, suffice to say that you don't need them to work out what we are talking about IIRC.

Andrew
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FollowupID: 466982

Follow Up By: Flash - Sunday, Nov 26, 2006 at 22:23

Sunday, Nov 26, 2006 at 22:23
Airconditioners USED to be rated in HP or BTU's.
Nowadays they're rated in watts of cooling power....that is NOT watts of electricity consumption.
A typical bedroom aircon is about 2.6 Kwatts cooling power. The consumption is all to do with how efficient the aircon is. A typical chinese cheapie OR any caravan aircon will use waaaaay more power than a state of the art domestic split system from any of the major manufacturers.
A good 2.6 Kw aircon these days will use LESS than 600 watts power, ie: that what it actually draws from the grid.... or your generator.
I have a 2.6Kw Panasonic inverter split in my van and it will run happily on a 1Kva Honda genny on ecothrottle!
The good domestic splits are so far advanced from caravan aircons, there is just no contest.
Caravan aircons are expensive, noisy, inefficient, crude, and user unfriendly!

If you can possibly find a way to fit a good domestic split on your van, then that's the way to go. Sadly there a a lot of urban myths about them not standing up to movement,(rubbish) and also sadly they are hard to fit on some vans due to lack of space. (true)
Cheers
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FollowupID: 467003

Follow Up By: Member No 1- Monday, Nov 27, 2006 at 08:21

Monday, Nov 27, 2006 at 08:21
Flash...you are right except for this "Sadly there a a lot of urban myths about them not standing up to movement"...i must question this...try getting warranty service?....they are not built for these applications...and neither are thru the wall room airconditioners....but if one is lucky they can give resonable service!

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FollowupID: 467032

Follow Up By: WA Joe - Monday, Nov 27, 2006 at 16:27

Monday, Nov 27, 2006 at 16:27
Hi,
Early this year I fitted a Mitsubitshi split air con to a coaster bus. The outside unit is on a swing out frame just like a spare wheel rack( so the boot can be opened)and allow better air flow. Used flexiable automotive hose to allow movement and light spring mounts on the unit to take some of the shock out. So far it all works really well.

Joe
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FollowupID: 467084

Follow Up By: Member No 1- Monday, Nov 27, 2006 at 16:49

Monday, Nov 27, 2006 at 16:49
Howdy Joe....there is always an exception to the rule.....but for how long is the question?

it will happen ..just give it time and and of course transport vibrations...:)
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FollowupID: 467091

Follow Up By: Flash - Sunday, Dec 03, 2006 at 13:01

Sunday, Dec 03, 2006 at 13:01
Vibration-
sure it may kill ANY aircon given enough time.
I have personally seen a number of dedicated caravan airconditioners which have failed due to corrugations/ vibration. (about five to date) There is NOTHING about caravan aircons which make them vibration proof.
Meanwhile I have a mate with a domestic aircon installed on his boat, which will soon die from rust (despite extensive rust proofing) but still runs perfectly- and boy does it cop a pounding and vibration.
I have NEVER seen a domestic split installed in a mobile application (caravan, bus etc) which has failed..... and I've seen some pretty poor quality installation jobs. I believe proper installation is the key, eg screwing the evaporator to the wall rather than hanging it off a wall bracket.

The first caravan installation job I did (..approximately seven years ago) was in a pop-top, is now on it's third owner (I keep in touch), has been right round Oz twice and has had no problems at all. Probably in the vicinity of 60 to 70 thousand kilometres on that van.
Like I said, urban myths.
Cheers
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FollowupID: 468248

Reply By: wazzaaaa - Sunday, Nov 26, 2006 at 20:03

Sunday, Nov 26, 2006 at 20:03
I put a new NEC box airconditioner 3.3kw cooling only in my old caravan where the fridge was last week keeping an eye on the rated watts, my honda Eu20i runs it with ease. I just couldn't justify spending a couple of thousand on a heron in an old van so the $400 box rattler it is, and it is great. Wife will get used to the fridge being in the annexe i'm sure.

Wazzaaaa
AnswerID: 206989

Reply By: Member - Ozdyssey (QLD) - Monday, Nov 27, 2006 at 09:00

Monday, Nov 27, 2006 at 09:00
Most caravan manufacturers will say the Honda 2 will run the caravan's air con.

I thought the problem was with start up i.e. the initial watts they draw when switched on. I read somewhere it can be around 4-5000watts so what hope has the Honda got.

Darren, maybe it's worth posting the question on the caravanners forum also.
AnswerID: 207061

Follow Up By: Darren W - Monday, Nov 27, 2006 at 22:11

Monday, Nov 27, 2006 at 22:11
Ozdyssey,

whats the web address of the caravanners forum ??
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FollowupID: 467162

Follow Up By: Member - Ozdyssey (QLD) - Tuesday, Nov 28, 2006 at 13:02

Tuesday, Nov 28, 2006 at 13:02
try this

forum

I can post it if you have trouble.

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FollowupID: 467230

Reply By: Outbacktourer - Monday, Nov 27, 2006 at 11:06

Monday, Nov 27, 2006 at 11:06
A Eu20i used to start and run a Coleman Mach III rooftop on our Winnebago
AnswerID: 207079

Follow Up By: Member No 1- Monday, Nov 27, 2006 at 16:50

Monday, Nov 27, 2006 at 16:50
might have had a soft starter?
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FollowupID: 467092

Follow Up By: Outbacktourer - Monday, Nov 27, 2006 at 16:56

Monday, Nov 27, 2006 at 16:56
Not sure, it was a 2002 model so relatively modern but it gave no drama's.
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FollowupID: 467093

Reply By: Member - JohnR (Vic)&Moses - Wednesday, Nov 29, 2006 at 21:33

Wednesday, Nov 29, 2006 at 21:33
Have a Dometic in the Kimberley Karavan.
AnswerID: 207643

Reply By: Member - BBB - Sunday, Dec 03, 2006 at 13:49

Sunday, Dec 03, 2006 at 13:49
I have a Dometic Aircommander and my Honda EU20i runs it with out a problem.
AnswerID: 208316

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