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Old 10-30-2011, 06:02 PM   #15
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@Derek - my bath fan is on the curved portion of the roof, but my prior experience with swapping the unit leaves me convinced it isn't a problem as far as water runoff is concerned. The exterior vertical shoulders under the cap are the same height and there is insufficient curve inside to preclude using the interior collar provided. I have the vinyl over aluminum interior. If yours is bare aluminum, you can use the old collar that was mounted originally.

The only modification necessary to the MaxxFan is cutting the collar the appropriate depth for the roof thickness. It comes with a longer insert to fit much thicker skin and insulation specifications. I used tin snips to cut both the collar and the aluminum corners of the outer roof opening. The collar could be cut using kitchen shears.
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Old 10-30-2011, 06:48 PM   #16
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Maxx fans are great AND I like the remote. No getting out of bed to adjust it. The best part is being able to ventilate when it's raining out.
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Old 10-30-2011, 07:48 PM   #17
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dpe01, doubt that I could use a MaxxFan in either my bath or shower area. The vents in there are about 6" across, really no room to go any larger either. The existing fans have manual push-up covers and a small 12 volt fan. Thinking that when the budget allows, swapping out Fantastic Fan in bedroom, and ditching the Kool-O-Matic in living area and have MaxxFans in both. Now that I've looked at the MaxxFan website, I see that they are REALLY close to me, just across Tampa Bay. Kinda wondering if they do sales at their home office in Tampa? Might be worth a phone call!
Thanks, Derek
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Old 11-06-2011, 07:38 PM   #18
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So I installed one and a half MaxxFans today started thundering or thretining too. I could not find Butel any were it was a sunday.
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Old 11-06-2011, 07:56 PM   #19
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I have 2 MaxxFans and one Fantastik fan. I like the MaxxFan because you can tow with it fully open and it will not rain in. At least it has not rained in mine and I can't see how it can except in extreme rear driven horizontal rain. So I don't see the rain sensor as necessary.

Maxxfan has a little bit bigger footprint than a Fantastik Fan. The main reason I got it was for clearance of my AC and TV mast. Otherwise I would have a 3rd MaxxFan. Never heard a complaint about Fanstastik customer service. Never had a problem with either one.

The motors, controls, etc are very similar between the 2 brands. The Fantastic Fan lets in more skylight, and I like the Fantastic smoke tint better than than the Maxx Fan's, more like sky light.

On my 71 I had to do a little cutting for both Fanstastik Fan and Maxx Fann. Be careful not to nick the wiring harness in the coach, its close.
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Old 01-03-2012, 01:51 PM   #20
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MaxxFan Deluxe

I'm about to pull the trigger on 2 MaxxFan Deluxe fans and want to know if there are any issues found from those of you who have done installations recently, particularly installations done on 2000 erra models with regards to their plastics and the roof curvature.

1) I like the integrated cover (i'll be selling my new Maxxair covers that were supposed to be installed.
2) Lower profile
3) PCM fan control (not dumping amps into resistors for lower speeds) better for boondocking/battery/solar operation

Thanks!
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Old 01-04-2012, 02:15 AM   #21
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My TT is a 2003 28' Safari model that came without powered fans. There was no power wire pull (harness) preinstalled in the same cavity as my rear manual vent opening in the bedroom. After removing the original vent, I carefully drilled through the rib (flex shaft on drill, hand held to fish the bit between inner & outer skins) and used a coat hanger wire to retrieve the power line to the existing overhead light. A quick tap into the line and I was good to go. The front, living space fan was pre-wired.
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Old 02-07-2012, 07:41 PM   #22
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I installed two of the remote controlled Maxxfans in my new Int'l. Primarily because they offer a LOT of flexibility. Very easy install. One word of caution: while they fit into the spaces perfectly, if you tighten the plastic mount enough to conform to the slight curve in your roof you will have difficulty dropping the fan unit into the mount and having an easy fit. I used butyl tape and Parbond -- have had mucho rain, no leaks, etc. The fit lesson I learned on the first install made the second one easier. Snug, but not over tightening made this a simple process. Love the remote controls, 10 speed fans, temp control, ability to pull air in or exhaust. I see a real advantage when it's hot to have one fan pull air in and draw air out with the opposite. Ought to create a nice flow through.
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Old 03-10-2012, 07:42 PM   #23
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First one Installed!

Definitly like this over the Fantastic vents! Quiet and electronic speed control. 4 screws and the top comes off as well, so easy to maintain.

After finding out that the current fan was leaking and having rain in Texas, replacement was paramount as was the skylight (pos) and you can see the whole of that process toward the end of this thread:
http://www.airforums.com/forums/f455...hts-53517.html

The most time consuming activity was getting the old sealant off and having a clean surface for the new stuff.
Materials:
1) 3M speciality adhesive remover
2) Butyal tape
3) 3M Marine Adhesive/Sealant Fast Cure 4000 UV

Pictures show progression
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Old 03-24-2012, 11:11 PM   #24
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Warning!

I installed the second MaxxFan and discovered that there was a difference from the first.
The mount was different! I didn't realize until the mount ring was already installed. When I grabbed the fan unit, it didn't seem the same, and it wasn't!

Somewhere between 2010 and 2011 production, they changed the mount ring to include a gasket channel. The 2010 has a channel, but no gasket. Given a high wind speed, the water would be forced up and over the top channel and leak.
I wasn't about to yank the ring, so I took some 3/8" EPDM D shaped weather strip, removed the adheasive and stuffed it into the channel. I compressed the fan unit over the ring and engauged the screw points and I believe that will do the same thing and shouldn't leak. Testing will be done soon.

The first unit came from Amazon (2011 model) and the other (a bit cheaper) from another RV shop for $20 less (2010 model). There is NO difference in model number. Something I'm going to talk with MaxxFan about.
Install pictures: compare the mount ring to the one in the previous post.
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Old 03-26-2012, 05:32 PM   #25
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MaxxFan Changes

I talked with MaxxFan and there was an "instream" change that did not precipitate a part number change. The two styles of mount rings and fan mount are interchangable between the two.
The reason for the change is that someone in Japan was pressure washing and some water went over the mount and leaked.
Like I wrote, my solution of putting a gasket in the channel was the right fix because I don't buy that that won't happen in a driving rain storm and/or going 60mph and it won't leak. I just don't want to take a chance.

Bottom line... Get the latest model with the gasket on the mount ring.
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Old 09-19-2012, 06:01 AM   #26
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Quote:
Originally Posted by PaulAir View Post
I talked with MaxxFan and there was an "instream" change that did not precipitate a part number change. The two styles of mount rings and fan mount are interchangable between the two.
The reason for the change is that someone in Japan was pressure washing and some water went over the mount and leaked.
Like I wrote, my solution of putting a gasket in the channel was the right fix because I don't buy that that won't happen in a driving rain storm and/or going 60mph and it won't leak. I just don't want to take a chance.

Bottom line... Get the latest model with the gasket on the mount ring.
Installed two this weekend and could not put enough pressure to leave the gaskets provided with mine and line up the screw brackets. Any thoughts on going back and trying again?
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Old 09-20-2012, 02:36 AM   #27
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Quote:
Originally Posted by Silverbee View Post
Installed two this weekend and could not put enough pressure to leave the gaskets provided with mine and line up the screw brackets. Any thoughts on going back and trying again?
What type of mount? I'm assuming the gasket was captured in the mount ring.
Thoughts...
The mount ring could be warped from a tight mounting over the curvature where the front and rear of the fan contact the gasket first and there would be no way for the mount screws to line up?
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Old 09-21-2012, 05:19 AM   #28
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[QUOTE=PaulAir;1205240]What type of mount? I'm assuming the gasket was captured in the mount ring.
Thoughts...
The mount ring could be warped from a tight mounting over the curvature where the front and rear of the fan contact the gasket

Recognized the issue with the over tightening and only tightened down enough to not splay the channel before inserting the fan unit. Then completed the tightening. Still could not seat it fully. I did contact Maxxair and was told by tech support that I did the right thing. They said it should not leak without the gasket and that they did that because someone complained of a leak after running their trailer through a car wash.
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