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Old 06-13-2013, 02:45 PM   #1
wingnut60
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AC filter

After only 6 years of using the AC, I decided to check the filter behind the intake over the pantry. Was very surprised to find not much dust in it, guess the holes are too big to filter anything. Anyone out there put something different in there beside the holely foam?
Thanks,
Joe
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Old 06-13-2013, 07:25 PM   #2
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I think its a waste of time to replace that filter. Most of the air gets drawn from the space between the shower and the pantry and air moves there easily from around the bedroom/bathroom door. I doubt much goes through that filter. On my 07, I did get air returning through the ceiling intake vents which I washed out yearly.
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Old 06-13-2013, 08:51 PM   #3
Cummins12V98
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Re: AC filter

Quote:
Originally Posted by wingnut60
After only 6 years of using the AC, I decided to check the filter behind the intake over the pantry. Was very surprised to find not much dust in it, guess the holes are too big to filter anything. Anyone out there put something different in there beside the holely foam?
Thanks,
Joe
The grille above the pantry is for return air for the furnace on my 07.5 and there is no filter at all. There are two grilles in the living area and the sleeping area for the return air for the A/C and there are filters behind each grille. They do get dirty!
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Old 06-13-2013, 09:02 PM   #4
wingnut60
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Cummins and netjam,
Looks like you are correct on where the air comes from for the AC--the smaller vents--above the micro and the bed--are really dirty.
But, still would like some advice on better filter? for the small ones.
Thanks,
Joe
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Old 06-14-2013, 09:07 AM   #5
hitchup
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Our pantry foam is stapled onto the metal grille over the pantry.

We bought more of the Duck brand foam filter in the AC section of WM. Since the foam gets dirty so fast, it seems to be the best option for dust collection. They are easy to wash and reuse. Unlike the paper filters in residential vents. I usually wash mine every 3-4 wks in summer.

I cut a new set so can switch, wash the dirty and let it dry. So the vents are never without foam filters.

Besides foam -3M Filtrete can be cut to fit and is available at Amazon: http://www.amazon.com/s?ie=UTF8&page...ter%20Material
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Old 06-14-2013, 11:58 AM   #6
Cummins12V98
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Quote:
Originally Posted by wingnut60
Cummins and netjam,
Looks like you are correct on where the air comes from for the AC--the smaller vents--above the micro and the bed--are really dirty.
But, still would like some advice on better filter? for the small ones.
Thanks,
Joe
You should have 4 total. I just rinse mine from the back side and squeeze them out every month when the AC is being used a lot. Home depot sells the same thing in one large square that you get 4 pcs out of.

I glued some small plywood blocks on top of the plywood where the screws go thru the plywood on the ceiling so the screws hold better.
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Old 06-14-2013, 03:56 PM   #7
wingnut60
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Cummins,
Think I have only 3-- large one, above the pantry; small, above the micro; small, above the bed.
Thank you all for the replies. Will get new material and make some new filters.
Joe
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Old 06-15-2013, 02:08 AM   #8
Cummins12V98
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Quote:
Originally Posted by wingnut60
Cummins,
Think I have only 3-- large one, above the pantry; small, above the micro; small, above the bed.
Thank you all for the replies. Will get new material and make some new filters.
Joe
They must have changed things. Mine has one above micro, dining table, head and foot of the bed all for the AC and the return air for the furnace is above the pantry with out a filter.
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Old 06-15-2013, 08:16 AM   #9
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Yep. Over the years, they have made changes. Our 2010 is like Cummins' coach. In our case, I've changed out the screws holding the grills in place.

I've put a small (2"x3") block of wood on each side that are held in with two small wood screws. Then I put in what are called "hanger bolts" that have wood screw threads on one end and machine screw threads on the other. Once the screw threads are in place, I hope to never have to remove the screws. Those are an inch long.

What then holds the grills onto the hangar bolts are knurled nuts.

Terry
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Old 06-15-2013, 04:58 PM   #10
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Quote:
Originally Posted by terry and jo
Then I put in what are called "hanger bolts" that have wood screw threads on one end and machine screw threads on the other. Once the screw threads are in place, I hope to never have to remove the screws. Those are an inch long.

What then holds the grills onto the hangar bolts are knurled nuts.

Terry
Terry,

How do you get those bolts in, in the first place? I do not see from the pictures any way to install them.

Joe
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Old 06-15-2013, 07:34 PM   #11
terry and jo
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Joe,

I "double-nut" two of the knurled nuts onto the machine thread end. Since the threads go all the way through the nuts, it is easy to kind of tighten them against each other. Then, I use a pair of pliers to grip both nuts to screw in the hanger screws. Since the pressure of the nuts against each other prevent the hanger screw from turning within the nuts, it works pretty easy.

Just be careful to NOT tighten the two nuts against each other too tight as the threads in both the nuts and on the hanger screws aren't all that big and strong.

To make it easier, I drilled pilot holes for the hanger screws up and into the wood block that is the "back block" up in the ceiling.

Once I've inserted both hanger screws as I've described, then I separate the nuts and place one on each screw.

The biggest issue I have had in doing this is that once I've put the screws into the wood, I might have to bend one or both a bit to be able to get them through the holes in the grill cover.

I'm not the world's straightest "driller" and "screw inserter."

Terry
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Old 06-15-2013, 07:52 PM   #12
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Terry,

That is a good mod. I prefer the white stock screws because they sort of blend in with the grill's white color. It gives me an excuse to use the screw gun!

Do you use a lock washer or do they stay tight on their own?
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Old 06-16-2013, 08:24 AM   #13
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I did like Terry except painted nuts white looks nice blends in with grill.
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Old 06-16-2013, 09:11 AM   #14
terry and jo
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Cummins,

No, I've not used a lock washer. I actually got this idea from someone here on 5th Wheel Forums or over on SOITC's site. I can't remember who or where for sure.

As for needing a lock washer, unless there is enough vibration from the a/c running or traveling (whenever we finally get to do that), I might have to add some lock washers.

Terry
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