Ping Teddy

[Carnak]

Looking at a job in progress, contractor seems to be on the right track using dehumidifiers. An actual job that warrants them here.

They have several Santa Fe Rx and one ultra aire.

The question on the santa fe, they draw in air at top and discharge on the bottom. Can they handle about 8 feet of duct and 2 90s on the discharge, want the hot dry air blown into a plenum ceiling

They also seem to have 'foam vanes' that spread the discharge air out along the floor. Was considering pulling the foam out.

[square2round]

Originally posted by Carnak
Looking at a job in progress, contractor seems to be on the right track using dehumidifiers. An actual job that warrants them here.

Sorry I can't help you out on your question, but we're trying to get contractors to warrant them also. Too many of the same problems with no solutions being presented. Just head banging. Finally asked the boss to start having them installed on new construction...and not as an option.

We've installed a couple Aprilaire 1700's in problem homes. I'd like to monitor them over a period of time to actually see if they are making a difference.

[teddy bear]

Originally posted by Carnak
Looking at a job in progress, contractor seems to be on the right track using dehumidifiers. An actual job that warrants them here.

They have several Santa Fe Rx and one ultra aire.

The question on the santa fe, they draw in air at top and discharge on the bottom. Can they handle about 8 feet of duct and 2 90s on the discharge, want the hot dry air blown into a plenum ceiling

They also seem to have 'foam vanes' that spread the discharge air out along the floor. Was considering pulling the foam out.

Yes, the SF RX canbe ducted. They move 250 free air and can handle .4"WG duct pressure. Suggest 8" duct. Remove the lid and attach sheet metal with starting collar. Ok to remove the sound deadening foam in the discharge and attach sheet metal with starting collar. If the fan is operated continuously, ok to leave the dehumidistat in the top above the air filter. Or remote the dehumidistat to the space being controlled. I must admit, I choked up a bit as I read your post. Thanks TB

[Carnak]

Well get some one to give you the Heimlich manueuver, dehumdifiers have their uses, just not the solution to everything :)

The santa fe will be behind a corner museum display, the display goes up to a foot or so below ceiling. Will still draw air in through the top of the santa fe. I want to duct the supply air.

Will remove the sound deadening foam, then run duct same size as outlet out through a wall, 90 degrees up to plenum ceiling then a 90 in the ceiling to force the dry air towards the fan coil serving the same space as the santa fe.

I never measured the discharge outlet size but appears to be more than equivalent to 8 inch round.

Removing lid would allow more static for supply? Easier to pull in return, more ommph for supply?





[Edited by Carnak on 11-22-2005 at 11:39 AM]

[teddy bear]

Originally posted by Carnak
Well get some one to give you the Heimlich manueuver, dehumdifiers have their uses, just not the solution to everything :)
Removing lid would allow more static for supply? Easier to pull in return, more ommph for supply?

[Edited by Carnak on 11-22-2005 at 11:39 AM]
The lid has enough clearance to avoid significant pressure drop if the 3/4" spacers are inplace.
That Heimlich manueuver properly administured clears both ends. There's hope. TB

[Carnak]

Thanks

[Carnak]

Any idea on the RX capacity 250 CFM of 81.5F @ 58%RH?

Another job, considering 30 plus units.

[Edited by Carnak on 11-23-2005 at 08:26 PM]

[teddy bear]

Originally posted by Carnak
Any idea on the RX capacity 250 CFM of 81.5F @ 58%RH?

Another job, considering 30 plus units.

[Edited by Carnak on 11-23-2005 at 08:26 PM]
That's close to the rating condition of 80^F, 60%RH at which RX removes 90 pints per day or 3.5 lbs./hour. A good choice for a free standing, condensate pumping, and very quiet unit. Good Luck! TB