Clogged blower wheel (Not on a Montana)

[Ozz]

I found a few pictures of a blower assembly I pulled out of a house, had to change the motor and capacitor out. First took it to a car wash. Another example of no filter.
This shows how the blower wheel vanes catch the airborne crud. And to think these people were breathing this air.. yuck.
This is why I have an air filter in my trailer, and suggest you put one in yours.



The rest of the pictures:
https://picasaweb.google.com/Jimsue13/CloggedBlowerWheel?authuser=0&feat=directlink

[Tom S.]

Ewwwww!

[Parts Ed]

Thanks for the reminder on that Jim!! Another thing to do this spring after we pull the cover off the trailer.

[WeBeFulltime]

Yuk! What type filter do you recommend for a Montana and mount where?

[Ozz]

Well David and Sharon, I use an inexpensive pleated filter I cut to fit the opening under my stairs, but I don't know where your return air main is. You should have a single return system like mine somewhere.

[PackerFan]

Yuck! Guess it is time to think about getting a filter. Thanks for the tip Ozz.

[WeBeFulltime]

quote:Originally posted by Ozz

Well David and Sharon, I use an inexpensive pleated filter I cut to fit the opening under my stairs, but I don't know where your return air main is. You should have a single return system like mine somewhere.

Thanks Ozz. We have a grill/return like that on 2 of our stairs. Will take care of this.

[ole dude]

But I take the filter and turn it over ever so often. :-)

[Ozz]

quote:Originally posted by ole dude

But I take the filter and turn it over ever so often. :-)

Like the one on the right?

[Flymutt]

It seems to me that I saw, in the Monty manual, the specific instructions NOT to run the AC unit without a filter. Wonder why that does not apply to the heater??? Doesn't make sense to me that the AC would need a filter while they don't say anything about a furnace filter. Thanks Ozz.

[Ozz]

Well, 2 different deals altogether, on the A/C there are very small fins that do all the work keeping you cool, they don't have much distance between fins and clog really easy, whereas the heat-exchanger in the furnace is very large. The fan vanes collect crud, as seen in the photo, in the A/C or the furnace.

[Ozz]

One type of heat exchanger


Another type of heat exchanger



Clogged with lint



Clean coil

[Flymutt]

Gotcha...but why do you suppose Montana (and others) don't have filters as standard equipment for the return air in the heating units? My S&B house has one.

[Ozz]

They should. But with heat, they don't have to. But you see what eventually will happen when not filtered.
As you can see, the refrigeration coil will clog quickly without filter. The heat exchanger will accumulate hair and lint, it will burn into the tubes, polluting the air we breathe, and the fan vanes will collect dirt-lint-hair, eventually filling the vanes and then the air movement will be decreased by around 40%. ( a guess, but a pretty informed guess, I have bench tested and amped motors on the dirty ones)
I think the RV customers get shorted like this in many ways.

[Flymutt]

I don't suppose it helps the "hair" thing seeing that the cat food bowl is right next to the air intake huh?
I've already added it to this year's mod list.
Thanks

[Ozz]

quote:Originally posted by Flymutt

I don't suppose it helps the "hair" thing seeing that the cat food bowl is right next to the air intake huh?
I've already added it to this year's mod list.
Thanks

Ha! a direct route.
It's amazing how much we get in the vacuum bag. We have around 450 Sq. ft. of living space, it can accumulate a lot of airborne stuff.

[ole dude]

Xactly on the filter, like u saw many