Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-13-2020, 09:40 AM   #1
1 Rivet Member
 
1980 31' Excella II
Twentynine Palms , California
Join Date: May 2019
Posts: 13
Images: 1
Univolt replacement

I just bought a 1980 Excella with original Univolt.
How many amps is it?
I'd like to install a PD INTELI-POWER 9200 Series and is the 45amp enough?
I have new 75ah batteries and don't want to ruin them.
Is it a straight swap with no other electrical work?
Thank you much!
__________________

Mojave96 is offline   Reply With Quote
Old 02-13-2020, 09:52 AM   #2
2 Rivet Member
 
1976 Argosy 28
Buford , Georgia
Join Date: Aug 2019
Posts: 29
My 2 cents:
45 amp should be enough but if you look on the old unit it should have an output rating listed. My '76 Argosy had a 30amp and it's being replaced by the very same unit you are talking about. Furthermore with the advent of LED lighting, this greatly reduces the load on the supply. The new units like the intella-power are FAR superior than the old Univolt and I might add much lighter.


John
__________________

strangepod is offline   Reply With Quote
Old 02-13-2020, 10:16 AM   #3
Rivet Master
 
1988 25' Excella
1987 32' Excella
Knoxville , Tennessee
Join Date: Oct 2010
Posts: 3,265
Blog Entries: 1
I replaced mine with a 45 amp and it is fine. I took the cover off the old unit to disconnect the wires inside it. That gave me enough wire to just hook up the new unit. I capped off the wire to the indicator light on the panel. That does not work with the new converters. Some people change the fuse panel and rewire. I do not think you want a higher output converter unless you rewire.

On things I would do. My converter is in a circuit with a switch to cut off the converter. If your trailer is not wired that way I would consider adding that feature. The converter draws a good amount of power and I have to switch it off to run the microwave with our generator. Or I guess you could use the breaker as a switch.
Bill M. is offline   Reply With Quote
Old 02-13-2020, 10:27 AM   #4
4 Rivet Member
 
DryFly's Avatar
 
1972 Argosy 20
Snoqualmie , Washington
Join Date: Sep 2012
Posts: 480
Re other electrical work, I think you have the older glass tube style fuse. Since you're already messing around with your Univolt (and it IS a good idea to replace it), consider switching the fuse panel to an automotive style blade fuse panel. The older glass tube style are not as easily found as the blade style, which are everywhere.
DryFly is offline   Reply With Quote
Old 02-13-2020, 10:53 AM   #5
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,576
Hi

A Univolt from 1980 is on the "need to replace" list. Even if it appears to be working right now, it likely will let you down fairly soon.

Before you do anything, stop and think a bit about just what the end goal is. Will you be adding solar? Will you take the lighting to LED's? Are you tearing this or that out / replacing it? Are you adding a second AC unit? Might you upgrade the battery setup? Will you add better 12V monitoring? Each of those might have an impact on what you do with the 12V / converter wiring and setup.

Bob
uncle_bob is offline   Reply With Quote
Old 02-14-2020, 07:46 AM   #6
1 Rivet Member
 
1980 31' Excella II
Twentynine Palms , California
Join Date: May 2019
Posts: 13
Images: 1
Thank you, good points.
Mojave96 is offline   Reply With Quote
Old 02-14-2020, 07:47 AM   #7
1 Rivet Member
 
1980 31' Excella II
Twentynine Palms , California
Join Date: May 2019
Posts: 13
Images: 1
Thank you, perhaps later.
Mojave96 is offline   Reply With Quote
Old 02-14-2020, 07:49 AM   #8
1 Rivet Member
 
1980 31' Excella II
Twentynine Palms , California
Join Date: May 2019
Posts: 13
Images: 1
Thank you, good idea, I don't have that problem.
Mojave96 is offline   Reply With Quote
Old 02-14-2020, 08:58 AM   #9
Rivet Master
 
TomW's Avatar
 
1967 26' Overlander
Huntsville , Alabama
Join Date: Dec 2003
Posts: 2,974
Images: 3
My Univolt Never Retired

The 30 amp Univolt in my '67 Airstream was still working when I got it in 2003. We even used it for a year or two until I got tired of worrying about overcharging the battery. I then purchased the 30 amp converter Randy recommended over at BestConverter.com. When that converter bit the dust many years later, it was replaced with Randy's current, 30-amp recommendation which is still going strong.

The 30 amp capacity appeared more than adequately handled the electrical load. But now that most of the interior lighting is LED instead of incandescent, my Airstream could probably get by with something smaller.

The Univolt, however, never retired. Among other things, it and my Airstream's original water pump were especially useful in 2013 in applying termiticide. You can read about it here: http://adventuresofacuriousfellow.bl...ie-lookie.html

Since 2016 the Univolt has been supplying power for LED strip lighting in my train/practice room. I don't think it will ever die.

Tom
TomW is offline   Reply With Quote
Old 02-14-2020, 09:01 AM   #10
Rivet Master
 
CBWELL's Avatar
 
1994 34' Excella
Warren , Manitoba
Join Date: Apr 2006
Posts: 614
I have installed several of the PD9245 converters over the years. They are very good units with good factory back-up. As suggested you could replace the fuse panel, but it is not totally necessary. That unit is enough capacity for your trailer. Your batteries will thankk you for the replacement!!
__________________
ACI #7394
2012 GMC 2500 HD Duramax Denali
1976 31' Gone but fondly remembered
CBWELL is offline   Reply With Quote
Old 02-14-2020, 09:34 AM   #11
4 Rivet Member
 
DryFly's Avatar
 
1972 Argosy 20
Snoqualmie , Washington
Join Date: Sep 2012
Posts: 480
Quote:
Originally Posted by CBWELL View Post
I have installed several of the PD9245 converters over the years. They are very good units with good factory back-up. As suggested you could replace the fuse panel, but it is not totally necessary. That unit is enough capacity for your trailer. Your batteries will thankk you for the replacement!!

A few years ago we were on a trip and camped in a KOA, that night a fuse blew. I had replaced the Univolt a few months prior, but not the original fuse panel. I went to the campground store for a replacement fuse, and all they had were the blade type. I drove a few miles and found a small store, and again, all they had were the blade type. After stopping at another store (no luck), I eventually drove about 50 miles into the outskirts of Portland before I found a NAPA that had the part I needed. They had the fuse, but they also had way more blade types.
So I agree, from a mechanical perspective, the old fuse panel is functional, and it's usually not necessary to replace it. But replacing it with a modern panel is an easy and pretty inexpensive job, and doing so may save you missing an entire day of camping with your family. For me, it was a no-brainer.
DryFly is offline   Reply With Quote
Old 02-15-2020, 08:33 AM   #12
Half a Rivet Short
 
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,576
Hi

These days you can buy a "fuse assortment" pack from places like Amazon for not much money at all. If you match the fuse type you need to the pack you buy, the result is a lifetime supply of any fuse you might need.

Something to go shopping for while the trailer is in storage for the winter ....

Bob
uncle_bob is offline   Reply With Quote
Old 02-16-2020, 08:36 AM   #13
1 Rivet Member
 
1980 31' Excella II
Twentynine Palms , California
Join Date: May 2019
Posts: 13
Images: 1
Quote:
Originally Posted by uncle_bob View Post
Hi

These days you can buy a "fuse assortment" pack from places like Amazon for not much money at all. If you match the fuse type you need to the pack you buy, the result is a lifetime supply of any fuse you might need.

Something to go shopping for while the trailer is in storage for the winter ....

Bob
��Agreed, I have a container of glass fuses I filled from Autozone. I wasn't looking for more work�� Thx to all!
Mojave96 is offline   Reply With Quote
Old 02-16-2020, 10:33 AM   #14
Rivet Master
 
1988 25' Excella
1987 32' Excella
Knoxville , Tennessee
Join Date: Oct 2010
Posts: 3,265
Blog Entries: 1
I have blown 1 fuse in about 20 years in my Airstreams. A short in the 12 volt outlet I run my CPAP in. Gonna check and see if I have some more or if I am ordering.
__________________

Bill M. is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Univolt Replacement in 1976 Argosy M/H idahohanson Mechanics Corner - Engines, Transmission & More... 4 07-21-2015 09:50 PM
To Univolt or NOT Univolt? aircooled4 Batteries, Univolts, Converters & Inverters 11 05-13-2012 08:20 PM
Univolt replacement questions AV8 Electrical - Systems, Generators, Batteries & Solar 6 09-15-2005 10:55 AM
Univolt replacement with Inteli Power Craig Electrical - Systems, Generators, Batteries & Solar 6 05-04-2003 12:37 PM
Univolt Replacement rjones1138 Electrical - Systems, Generators, Batteries & Solar 19 10-21-2002 04:31 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 08:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.