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Topic: Question about roof AC condensation ? (Read 743 times) previous topic - next topic

Question about roof AC condensation ?

I could not find an answer on previous post .
On '94 - U225:
No condensation coming off the roof from the roof AC's ?
I need to get up there and take the covers off anyway but thought you might have answers before I look.
Have had 3 other brands before the Foretravel, all produced water off the roof.
P.S.  In Southern Oklahoma you don't have to worry about enough humidity to make the condensation !
Thanks for the Help (as always).............~JL~...... ::)
1994-GV-U225
5.9 Cummings
Build #4503
Near Springer Oklahoma

Re: Question about roof AC condensation ?

Reply #1 –
Let us know what brand/model you have.  There are some that sling the condensate up into the condenser, so a lot less condensation drains onto the roof.

Brett
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Question about roof AC condensation ?

Reply #2 –
Hey Brett,
They are Colman 'TSR's' , they look like the original AC's.
I have the covers off, they are pretty dirty but the drain holes are open.
The condensation had to be coming off the roof some where,  I guess I just missed it.
It does not seem to be getting into the coach any place.
I'll turn them on today and see first hand where the condensation is going.
You could not ask for the AC's to cool any better.
In 100 degree weather one is comfortable and two will freeze you out. (on 'low cool')
Thanks for your help...............~JL~
P.S. I had been told that some of the new 'million dollar coach's ' had the AC drains plumed into the grey water tank,  was hoping some one would tell me that the older Foretravels were like that......ha
1994-GV-U225
5.9 Cummings
Build #4503
Near Springer Oklahoma

Re: Question about roof AC condensation ?

Reply #3 –
Piped condensate drain now that is a nice feature.

Have thought about tubes over the edge.. but decided to coat roof.
The selected media item is not currently available.
My advice and experiences are Free, you decide if they are worth anything .

John - driving Old Faithful
1994 U280 GV
C8.3, Banks, Pacbrake, 900 watts, Resonator, XLHD tow dolly
Retired Army Warrant Officer

Life is what you make of it - if it is lemons, make lemonade!
Former Coaches:
1988 GV 40' ORED 300HP CAT - 9 years
1990 Winnebago LeSharo - 3 years
2000 Newmar London Aire - 3 years (#18 of 23 produced)

Re: Question about roof AC condensation ?

Reply #4 –
My '94 - U225 A/C's condensation  runs off the roof.
1994 U225
build #4514

Re: Question about roof AC condensation ?

Reply #5 –
We have a future project to try to trim a piece of PVC pipe or something else to fit under each of the two roof A/C drains and direct the condensate over the edge of the roof. We know there are retrofits to lift units and bolt a fitting under the drain, and put pipes down through coach roof somewhere, but we are choosing to not go that route. Since painting our roof, the condensate is not as much of a problem.

Re: Question about roof AC condensation ?

Reply #6 –
Quote from: Barry & Cindy –
We have a future project to try to trim a piece of PVC pipe or something else to fit under each of the two roof A/C drains and direct the condensate over the edge of the roof. We know there are retrofits to lift units and bolt a fitting under the drain, and put pipes down through coach roof somewhere, but we are choosing to not go that route. Since painting our roof, the condensate is not as much of a problem.

I've thought about doing the same, the constant bath of ac condensate running down the sides of the coach is not doing it any good.  What looks like it might work well to me is some plastic surface mount electrical conduit, the decorative stuff like Panduit.  Its rectangular section, low profile, snap off cover and self sticking adhesive would seem to lend well to the task.  Lots cheaper thru Ebay but the home improvement stores typically have it. 
"Not so  long ago we were a nation of risk takers, riding five million pounds of  thrust straight into space."  Joe Gresh
Chuck Pearson
1996 U295
2018 Can Am X3 TurboRS

Re: Question about roof AC condensation ?

Reply #7 –
My thought was using a 1" wire chase, replacing the self stick with 3m.
Running the channel under the solar, 1" proud of the roof edge.so it clears the wheel flair.

I saw Brett talk about some ac units kicking the condensate into the fan.. need to thing about that.. might be ideal.
The selected media item is not currently available.
My advice and experiences are Free, you decide if they are worth anything .

John - driving Old Faithful
1994 U280 GV
C8.3, Banks, Pacbrake, 900 watts, Resonator, XLHD tow dolly
Retired Army Warrant Officer

Life is what you make of it - if it is lemons, make lemonade!
Former Coaches:
1988 GV 40' ORED 300HP CAT - 9 years
1990 Winnebago LeSharo - 3 years
2000 Newmar London Aire - 3 years (#18 of 23 produced)

Re: Question about roof AC condensation ?

Reply #8 –
My thought was using wire chase, replacing the self stick with 3m.
Running the channel under the solar 1" proud of the roof edge.

I saw Brett talk about some ac units kicking the condensate into the fan.. need to thing
The selected media item is not currently available.
My advice and experiences are Free, you decide if they are worth anything .

John - driving Old Faithful
1994 U280 GV
C8.3, Banks, Pacbrake, 900 watts, Resonator, XLHD tow dolly
Retired Army Warrant Officer

Life is what you make of it - if it is lemons, make lemonade!
Former Coaches:
1988 GV 40' ORED 300HP CAT - 9 years
1990 Winnebago LeSharo - 3 years
2000 Newmar London Aire - 3 years (#18 of 23 produced)

Re: Question about roof AC condensation ?

Reply #9 –
You should have it running out of the drain holes on both sides on the front of the AC unit.  I have a small plastic container under mine and tubing that runs to the edges of the rear of the coach. I dropped them down thru the engine bay and they drip on the ground at the rear of the coach. Simple and easy.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon