wrote in message
oups.com...
The alt.hvac snobs wouldn't answer my question, so I'm posting here...

I was going to install my new humidifier this weekend, but I see that
the A/C evaporator is in the way. And I have no room on the return
plenum. I have an upflow system and the evaporator was installed at
the very top of the supply plenum.


Here's a diagram:


``````````| ducts to all of the rooms |
``````````+-----------------------------------+
``````````| |
``````````| |
``````````| |
``````````| A/C evaporator located here |
``````````| |
``````````| |
``````````| |
``````````+-----------------------------------+
```````````\ |
````````````\ |
`````````````\ section of duct |
``````````````\ |
```````````````\ |
````````````````+-----------------------------+
````````````````| /
````````````````| /
````````````````| section of duct /
````````````````| /
````````````````| /
````````````````+-----------------------+
````````````````| |
````````````````| |
````````````````| |
````````````````| furnace |
````````````````| |
````````````````| |
````````````````| |
````````````````| |


I have some questions about this...


1) Should the evaporator have been installed lower in the supply
plenum? (It sure would have made it easy for me to install my
humidifier.)

Installer made the decision for a reason. Maybe not a good one



2) I plan on having my A/C system replaced this spring, because it is
very old and doesn't work well. Can I ask the installer to locate the
evaporator lower in the supply plenum?

Every evaporator I have ever seen is right on top of the furnance. Mostly
because they parts fit together well that way. The picture seems to show a
the furnance and evap of differing sizes.

3) There is a little bit of asbestos tape on the duct where the
evaporator lines enter. Will the A/C guys remove this? Will they ask
for me to have it removed before they work?

Asbestos tape?, new one on me. Sure it is not just duct tape?

4) Depending on the answer to #2...Can I have someone evacuate the A/C
system so that I can remove the evaporator and install my humidifier?
There's at least two feet of duct below this (and above the furnace)
where the evaporator would fit.

Mike it is impossible to answer you. There are a thousand things to look at
and your only providing a few details. Call several licensed contractors and
ask them. They can see the job.

Might be a good time to replace everything now or maybe wait till after the
holiday.

Installing the humidier now may be more trouble than it is worth.

Mike