running a/c on inverter

[coreyg67]

I agree with you to some degree, BUT, you have to take into consideration the
capacity of
the batteries on the coach. At which, the alternator is not required to
completely supply
the power for the A/C. I'm just guessing, I know absolutely NOTHING about
12volt
systems, or converting D/C to A/C.

David, have you ever run a single A/C with the switch as the coach came
equipped? If
so, what type of draw did you see on the Alt. output meter? Mine runs at very
low levels
the majority of the time, unless I've really drained the 12volt system.

Corey & Jenni
1996 PT42
Prosper, TX


--- In WanderlodgeForum@yahoogroups.com, David Brady wrote:
>
> Hi Bill,
>
> No I'm not sure, but my gut feel is that the generator is more
> efficient. I'll have to look more deeply to see if I can come up w/
> numbers. I have one 300 amp alternator on my Series-60. Typically
> alternators are 50% efficient. When generating electricity you're
> better off generating high voltage and low current, which is what
> you'll do with the generator, and not do with the alternator.
> Add into this the losses at the inverter. This gives me the feeling that
> the genny will offer more economy. But I might be wrong...
>
> David Brady
> '02 LXi, NC
>
> Wilhelmus Schreurs wrote:
> > David:
> > Are you sure that running your big generator is more efficient to run
> > one a/c, from the standpoint of burning fuel to the output of the a/c?
> > With your engines you have two alternators, so each one would put out
> > 50 percent only and then have 50 percent left over for other items.
> >
> > Bill 84 FC 35 SB "$quanderlodge"
> > Terrace, B.C. Canada
> >
> >
> > ----- Original Message ----
> > From: David Brady
> > To: WanderlodgeForum@yahoogroups.com
> > Sent: Tuesday, July 1, 2008 8:25:03 PM
> > Subject: Re: [WanderlodgeForum] running a/c on inverter
> >
> > My LXi is set up to run one AC off an inverter and the alternator, but
> > conventional wisdom is that you shouldn't do it. Steadystate current
> > draw from the alternator is 150Amps. I want to preserve my precious
> > alternator, so I always run the generator when I need my AC's.
> > Another point of view to consider the inefficiencies of the alternator
> > in generating DC and to add on to that the inefficiency of the inverter
> > to convert to AC to run the air conditioning. The generator is more
> > efficient at generating the needed AC.
> >
> > David Brady
> > '02 LXi, NC
> >
> > coreyg67 wrote:
> >
> >> I'm trying to figure out a way to run 1 of my A/C units on the
> >> inverters and alternator. I
> >> would think with the two 2500 watt inverters, and the 300amp
> >> alternator, this would be a
> >> doable venture. Can someone tell me if, and how to do this task?
> >>
> >> Thanks
> >> Corey & Jenni
> >> 1996 PT42'
> >> Prosper, TX
> >>
> >> ----------------------------------------------------------------------
--
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG.
> >> Version: 7.5.526 / Virus Database: 270.4.3/1527 - Release Date: 6/30/2008
6:07
PM
> >>
> >
> >
> > ------------------------------------------------------------------------
> >
> > *Yahoo! Canada Toolbar :* Search from anywhere on the web and bookmark
> > your favourite sites. Download it now! <http://ca.toolbar.yahoo.com/>
> >
> >
> > ------------------------------------------------------------------------
> >
> > No virus found in this incoming message.
> > Checked by AVG.
> > Version: 7.5.526 / Virus Database: 270.4.3/1527 - Release Date: 6/30/2008
6:07
PM
> >
>