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Old 01-20-2011, 04:10 PM   #15
Don't forget your cat nap
 
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Originally Posted by Zigidachs View Post
Just found this post. The stock inverter in the AS is the Parallax 7400 but is not a pure sine wave unit. I just spoke with a rep from the company and he didn't even know if the unit was a MSW!!??? Apparently it is a only 2 stage converter.

Lifeline stated that the Parallax is "ok" with their AGM batteries, but the PD ( Progressive Dynamics) units "would be better".

In our fifth wheel we had a Prosine 2.0--great unit but we also had a lot of battery power. Didn't need that much. Like most, we overestimated our use.


Another option is the Magnum Energy product line---PSW, 1000W, and a FOUR stage converter, which is best for AGM batteries.


Zigi,

There is a little terminology problem here. An inverter converts DC to AC. The AC should be a close to a pure sine wave as feasible to work with all AC equipment.

The parallax 7400 series are converters which convert 120 volt AC to 12
volt DC. Therefor the term "pure sine wave" does not apply to them.

What is MSW? All can find is "Masters of Social Work" or "Municipal Solid Waste"

Are you looking for a converter to replace the 7400?

Ken
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Old 01-20-2011, 06:06 PM   #16
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MSW = Modified Sine Wave, AKA, the Stair Step Wave.
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Old 01-20-2011, 06:43 PM   #17
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Inverter/ converter

Sorry, I misspoke. I know that the converter charges the batteries, and the inverter emits AC from a DC source. The PSW -pure sine wave inverters provide the cleanest signal. The MSW -modified sine wave --seem to do well also, but not as clean as the PSW.

The Parallax converter is only a two stage unit whereas the Magnum is a 4 stage converter, best for AGM batteries. ( also recommended by a rep from Lifeline)

I would like to install AGM batteries and insure they are properly charged- ie the research. I cannot seem to find info on the inverter technology for the stock inverter in the AS--which we ordered.

I thought that the Parallax had some inverter capabilities but I assume that I am incorrect on that point. Where is the inverter in the AS, what are its characteristics or specs?
Thanks for any and all help.
ZIGI
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Old 01-20-2011, 06:56 PM   #18
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hi zigi...

getting antsy about delivery?

a/s has used a variety of inverters in the last 10 years.

both msw and psw have been used at 500 to 2000 watts.

many are 'trace' branded units as i recall,

but email to tech/customer support should confirm what is installed now

as part of the UPgrade package.

while the p'lax is crude, the 74xx series did fine with agms in my unit,

till it failed at ~4 years 2ndary to a week of low voltage shore power, which cooked it.

the agms are 6 years old now and still juicing as new, no issues even with the crude charger.


cheers
2air'
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Old 01-20-2011, 07:55 PM   #19
Don't forget your cat nap
 
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Quote:
Originally Posted by Zigidachs View Post
Sorry, I misspoke. I know that the converter charges the batteries, and the inverter emits AC from a DC source. The PSW -pure sine wave inverters provide the cleanest signal. The MSW -modified sine wave --seem to do well also, but not as clean as the PSW.

The Parallax converter is only a two stage unit whereas the Magnum is a 4 stage converter, best for AGM batteries. ( also recommended by a rep from Lifeline)

I would like to install AGM batteries and insure they are properly charged- ie the research. I cannot seem to find info on the inverter technology for the stock inverter in the AS--which we ordered.

I thought that the Parallax had some inverter capabilities but I assume that I am incorrect on that point. Where is the inverter in the AS, what are its characteristics or specs?
Thanks for any and all help.
ZIGI
The Inverter in my 2010 Classic is a World Friendship Co. WF-600T Pure Sine Wave Power Inverter. It is located just about dead center under the Sofa.

A copy of the manual is below.

The one I got has an 115VAC cord attached to it. It was not plugged into anything. I plugged it into the same 115 wall socket that the converter is plugged into. With it plugged in, the inverter output will be from the 115V trailer wiring when ever you are plugged in to shore power. This means that you do not have to turn the inverter on to get power to the dedicated inverter wall sockets.

As far as the converter is concerned, I replaced my Parallax 7455 with a Iota DLS-55 with the IQ-4 smart charger attachment. I did this to extend the Battery life with smarter charging characteristics.

My trailer came with AGMs because I ordered the factory solar package.

Hope this helps,

Ken
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Old 01-20-2011, 08:33 PM   #20
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Converter

Antsy? Yes!

I'm trying to perform better this time after the somewhat negative experience with the fiver. Thanks to all for your information. Without question, this site rocks! Intelligence and expertise reign!
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Old 01-20-2011, 09:01 PM   #21
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Just a few 'real world' observations and experiences, as I deal with this subject every day and RV electrical and charging systems are one of my specialties.

The 'Best' converter for Lifeline batteries, that being the one with the closest charging profile to what Lifeline recommends, is the IOTA DQ4 line of converters. As expected, they are a fully automatic 3-stage charger with 14.2-14.3 VDC bulk/absorption voltage and a 13.2 VDC float.

As for inverters, I would STAY AWAY from anything labeled XANTREX! All of the components in their entire line are made in China, and most are NOT REPAIRABLE! Just ask the guy with the $700,000 Country Coach motor home who just had to replace BOTH of his OEM Xantrex ProSine 3000 inverters when the charging sections went out. Reply from Xantrex.......'sorry, they can't be fixed'.

The best inverters currently on the market are made right here in the good old USA (in the shadow of the Boeing plant in Everett, WA) by Magnum Energy! They are totally field repairable (I'm a factory authorized service center) and rarely fail on their own. They come in a variety of sizes from 1200 watts/70 amp charger up to 4000 watt grid-tie inverters for domestic solar use.

The most popular units are the ME-2012 (modified sine wave, 2000 watts/100 amp charger) and the MS-2012 (pure sine wave, 2000 watts with 100 amp charger). Be advised that the Magnum modified sine wave in fully compatible with most of todays electronics and TVs and is standard equipment on many high-and motor homes. Plus, Magnum's version of a 'modified sine wave' is much closer to the pure sine wave than any other companies version of a modified sine wave. Just check it out on your oscilloscope!

One of the benefits of the Magnum line is their easy to understand, fully programmable remote. A battery monitor kit is also available so you can get a complete, accurate reading on your battery usage....your battery 'fuel gauge'.

Let me know if you have any application questions on the Magnum products.
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Old 01-22-2011, 01:04 AM   #22
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There is Lew Farber, the best RV tech in the country! Glad to see you back steering people in the right direction. Lew gets it folks!
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Old 01-22-2011, 09:59 PM   #23
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There is Lew Farber, the best RV tech in the country! Glad to see you back steering people in the right direction. Lew gets it folks!
Aw shucks Randy..you say the nicest things!

THANKS!
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