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When to turn water off to humidifier?

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When to turn water off to humidifier? hondgm 03-08-2007
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Posted by on March 8, 2007, 9:06 am
I have a General humidifer on a newly installed furnace. (It probably
goes without saying that it contains a vertically oriented metal
screen) I've had problems with it getting musty-smelling and
consequently causing me to have allergy symptoms.

I've noticed that the water valve turns off only when the furnace fan
turns off. Shouldn't the water turn off when the gas valve turns off,
so that the when the fan runs for a couple more minutes the humidifier
screen gets a chance to dry out? Most furnaces do this on the A/C
setting.


Posted by Stormin Mormon on March 8, 2007, 9:21 am
Yes, it certainly should. So, call your furnace guy and ask for
that to be rewired. It's not dificult.

Be sure to also ask if the screen should have been installed
horizontal.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

: I have a General humidifer on a newly installed furnace. (It
probably
: goes without saying that it contains a vertically oriented
metal
: screen) I've had problems with it getting musty-smelling and
: consequently causing me to have allergy symptoms.
:
: I've noticed that the water valve turns off only when the
furnace fan
: turns off. Shouldn't the water turn off when the gas valve
turns off,
: so that the when the fan runs for a couple more minutes the
humidifier
: screen gets a chance to dry out? Most furnaces do this on the
A/C
: setting.
:



Posted by Bob_Loblaw on March 8, 2007, 10:15 am
hondgm@yahoo.com wrote




> I have a General humidifer on a newly installed furnace. (It probably
> goes without saying that it contains a vertically oriented metal
> screen) I've had problems with it getting musty-smelling and
> consequently causing me to have allergy symptoms.


Replace the evaporative pad annually.




> I've noticed that the water valve turns off only when the furnace fan
> turns off. Shouldn't the water turn off when the gas valve turns off,


Nope.


> so that the when the fan runs for a couple more minutes the humidifier
> screen gets a chance to dry out?

Yup.







--
Respectfully, Bob

Posted by on March 8, 2007, 11:32 am
> hon...@yahoo.com wrote
>
> > I have a General humidifer on a newly installed furnace. (It probably
> > goes without saying that it contains a vertically oriented metal
> > screen) I've had problems with it getting musty-smelling and
> > consequently causing me to have allergy symptoms.
>
> Replace the evaporative pad annually.
>
> > I've noticed that the water valve turns off only when the furnace fan
> > turns off. Shouldn't the water turn off when the gas valve turns off,
>
> Nope.
>
> > so that the when the fan runs for a couple more minutes the humidifier
> > screen gets a chance to dry out?
>
> Yup.
>
> --
> Respectfully, Bob

No it shouldn't turn off when the gas does, and yes it should run for
a few minutes to dry it out? Then when is the water supposed to turn
off? The fan already runs for a minute or two after the burners turn
off, wouldn't that be a good time to turn the water off, too?

I've had the humidifier for about 6 months and had to clean it twice,
so annually wouldn't be anywhere often enough at this rate.


Posted by on March 8, 2007, 12:19 pm

> I have a General humidifer on a newly installed furnace. (It probably
> goes without saying that it contains a vertically oriented metal
> screen) I've had problems with it getting musty-smelling and
> consequently causing me to have allergy symptoms.


Do you have an automatic humidity control?
Do you have a standard humidity control that you have to adjust manually?

Or is it wired directly with no humidity control?


> I've noticed that the water valve turns off only when the furnace fan
> turns off.


Normal


> Shouldn't the water turn off when the gas valve turns off,


No


> so that the when the fan runs for a couple more minutes the humidifier
> screen gets a chance to dry out?


Sounds like your humidity level is too high for the conditions.





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