Stopped by a Trane (aka American standard)
The a/s clean air effects filter has just fallen off the end of our a/s 80% horizontal furnace. It has been attached for approx one year to the return side of the furnace and has worked properly (as has the furnace) for that time. I recently had two services on the unit. On the last service call the tech shimmied the angle of the condenser enclosure to correct a backward flow of water (which was filling the emergency drain pan). The enclosure is now angled correctly downward and to the right - the same direction as the drainpipe. My guess is that this force applied to the left side of the horizontal unit cracked the seal around the electronic air filter on the right end of the furnace (but it's only a guess).
So - here are my questions...is this electronic air filter intended to hang off of the furnace and simply be attached with the standard tape and goo or should it also be supported in come way underneath the unit? Can anyone tell me what the A/S or Trane recommendation for this installation? Are these units prone to detachment from the furnace? What would be another reason for this failure?
One final question, what is the secret to putting the door back on this unit? It is a bear.
ps - the entire unit is just one year old and has worked great to this point. Any problem we have had has been installation related so the subject really should read "stopped by an installation" but then would any Trane or A/S experts want to have read it....
The filter is supposed to be screwed to the unit. Tell your slacking installers to come back out and secure the filter properly.
As for the filter door, while they are there have them tweak the tabs that catch the filter frame open a little bit more. This will allow the filter door to install more easily. The newer filters had a design change directly related to this issue.
Screwed to the unit certainly makes sense. Are there any mounting brackets to do this or are we simply talking sheet metal screws?
Also - thanks for the tips on the door - can a new door be ordered for this unit?
Trane actually sends sheet metal screws with the Clean Effects for mounting the filter. Your installers were just to lazy to do it properly, or they taped it for a temporary hold and forgot to screw it later, mistakes happen.
As for the door, there is no reason to replace the door. The 2 tabs that are on the door just need to be tweaked a tad to allow it to fit easier to the filter housing. Let your installers do this when they fix your filter, that way if for some reason the tab breaks it's on them.
The tabs are pretty stout so I doubt that they would break, but if it does and they break it, it would be covered.
On a horizontal installation, the air cleaner should be screwed to the furnace, and it needs to be supported so the opening for the filters and door is square.
If it is not properly supported, the weight of the return duct connection will pull the filter housing out of square, which makes it difficult to get the door off and on. "Tweaking" of the 2 tabs should not be needed if the filter housing is squared up properly.
Got pictures if your installation?
Are you sure it isnt screwed on the inside? Seems like the filter, plenum, ductwork sure would be heavy for tape and mastic to hold up. On the door make sure the filter rack is square. The doors are very hard to put back on if not.
If it is horizontal left, installer's guide says take the baffle out according to specs, but water still flies off the coil (a-coil). Is anyone using the horizontal right baffle on horiz. left installs? I know the engineers say you don't need one, but when you are in an attic and servicing a AHU full of water, I question that.
Martlet--just thinking of why your unit is full of water. Clean Effects/AccuClean's hate water.........
Wow, that aint right.
Ask your contractor for the installation operation and maintenance manual that came with the air cleaner. This booklet is yours and it says it's to remain with the homeowner right on the cover.
It (the manual) has pictures in it that shows where the screws are supposed to be installed in an application such as yours as well as how it is supposed to be supported so the unit will not rack (this caused the door not to fit correctly). What has happened in your attic should not have, if the directions were followed it would not have.
This problem has nothing to do with a brand name. Totally an install issue.
Thanks to all - This was second system installed by the same company. It has not gone well. The first system and it's install was flawless. This attic install has been a nightmare. And as you have pointed out - not for equipment issues.
The new system included an upgrade from 2.5 ton to 3 ton capacity in hope to achieve better airflow in the bonus room which is furtherest away from the unit and (traditionally) located over the garage. My installer suggested that I get the system up and going before making more improvements. Now I am considering enlarging the plenum and upsizing the aging flex tubes (over 20 yrs old).
Since the horizontal unit has been nothing but trouble should I consider changing the setup to a vertical orientation when I have the flex changed out? There is plenty of overhead space in the attic.
Additionally I have located the documentation left for the system but find only a user's information guide for the Clean Air Effects. I'll go looking for an on-line source for the installation instructions but would appreciate anyone posting this who may already know the online link.
Thanks once again to all.
Shouldn't matter if it's up flow or horizontal. If it's designed correctly.
Originally Posted by martlet
Thanks to all for the answers. As this was an installation error, having the information printed and ready for the tech made all the difference in getting the problem (after one year and after many visits) finally fixed correctly.
Still waiting on the foam block supports but have been assured these are on the way.