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A/C drain tubes for condensation removal

Yahoo Message Number: 72606
Good day to all,

Jack Nichols and I have been communicating by personal e-mail over the last week or so regarding the means to remove (drain) the A/C/ condensation from the rooftop of my RV. I have a 2000 Intrigue (36') and both the A/C units have two drain holes at the bottom of the catch pan which is allowing the condensation to simply drip directly onto the rooftop of the RV. Water pools up on the rooftop, and eventually begins draining down the side(s) of my coach.
Jack mentioned his '03 has tubes connected to the drains and the tubes run under the skin of the rooftop to the rear of the coach. This gets all the condensation off the rooftop and away from the A/C unit altogether. This makes perfect sense! I've checked numerous times and I do not have these tubes on my '00 coach.
My question is to anyone else who may own a 2000 Intrigue......does your RV have drain tubes, or does it drain on the rooftop? I am interested in trying to install some tubes for drainage. Has anyone tackled such a project before that can offer suggestions? There is only about 1/2" clearance from the drain hole to the rooftop, so it would be difficult to connect tubing to the drains, but I'm open to ideas.
I also want to personally thank Jack for his expertise and guidance! I am very fortunate to be a member of this forum and establish friendships with so many great people!

Steve

2000 Intrigue
#11168

Re: A/C drain tubes for condensation removal

Reply #1 –
Yahoo Message Number: 72607
Hi Steve,

On our SOB we had the same problem. Scott stubbed in an 1/8" ID tube into the hole of the drain pan and sealed it in with silicon. Then he increased the size to 1/4" tubing and ran that to the edge of the roof. He secured the tubing with plastic hose clamps sealing the screw holes. At the edge of the roof he attached a 90 degree fitting to drain the water down. You can either let the water drip from the roof to the ground or we would attach a tube to the 90 to channel to water to the ground once we were parked. Clear tubing was used.

Marta

07 Allure 31501

Re: A/C drain tubes for condensation removal

Reply #2 –
Yahoo Message Number: 72608
Not sure about the Intrigue Steve, but my '99 Magna has AC drain tubes...
The drains from the roof AC pans can be seen by removing the filter grill inside the coach... You should see the drain tubing from the pan connected to a "tee" fitting which connects to the outside drain tubing... On my coach, the front AC drains out in the front left corner of the left front wheel well... Rear AC drains out on the passenger side, just in front of the rear bumper... the drain hoses can be difficult to see due to the chassis undercoating... get yourself a strong flashlight and I think you will find them... if condensate is not dripping out, they are plugged up...
Easy way to get them working is to put a 10 second "burst" of air from the on-board air compressor up the tubes...

buck

k7wn, '99magna5653, Cat C10, Allison HD4060, Santa Fe toad

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Re: A/C drain tubes for condensation removal

Reply #3 –
Yahoo Message Number: 72613
I just replaced the rear AC on our 2000 Magna. There are two drain ports under the AC that are outside the 14" square seal. Therefore the design of the AC is for condensate to drain to the roof. On our coach, CC piped two plastic pipes from the outside drain through the roof mount AC seal into the area above the vent. I.e. They piped the water from outside to inside the coach. They compromised the roof seal in the process. So, they filled the path where the hose goes through the seal with an incredible amount of clear silicone caulk....they also added silicone caulk all around the AC seal. The result was a very tight (glued) connection between the AC and the roof of the coach. (Which worked. We never had a leak inside the coach from the AC.) It took two people about 30 minutes to lift the AC unit (gently so as to not destroy the roof fiberglass) while another person cut away at the seal from inside the coach until the AC unit could be lifted free of the coach. Then it took another hour to clean off all the silicon sealant that remained behind on the roof top. When it came time to install the new AC. I decided to just let the water run off the roof. I applied Sikaflex under the new seal and carefully set the new AC in place. Trying to replicate the cobbled together solution that CC came up with appeared too risky in terms of roof leaks into the cabin. The new unit's AC roof seal stayed intact and it works just fine...no leaks into the cabin. (That was my priority.)

Best wishes on whatever you choose to do.

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2000 Magna 5778