Homeowner Question

[delmar]

First off, I'm a new homeowner, so bear with me. I had an A/C system installed in my new home last spring shortly after we moved in, and I don't really know much about it. I'm trying to educate myself more now (after the fact I know, but better late than never!) and I have a couple of questions. (And for the record... NO I don't plan on working on any part of the system!)

The installer was highly recommended to me by a friend in the industry, and since I've been told the most important thing is to have a good installation, I went ahead and hired him. I did some of the leg work, including a Manual J heat load calc (what fun!), and tried to research the equipment as best I could. What I knew before the install was that I was going to get a 2 ton, 13 SEER R22 Keeprite unit. That's about it - I knew nothing about filter-driers or TXVs, so here are my questions:

1. The installer used an ADP coil, P/N HE30424A140A0000AP. Does this coil have an integral TXV? If not, how can I tell whether or not a TXV has been field installed? I'm assuming there would be a "sensing bulb" on the lineset somewhere, but I don't really know what or where to look. Would this be totally inside the coil, or should I be able to see it from outside the plenum?

2. If a TXV was not installed, is it worth having the installer come back out to install one? The outdoor unit is a 13 SEER R22 Keeprite, P/N C2A324GKA100.

3. How do I know whether or not the installer actually installed the included filter-drier? He brazed something (a plain copper "tube" about 6" long and larger in diameter than the line, that has an arrow printed on it - pointing towards the coil I think) on the line just before entering the coil. Is this the filter-drier?

4. If the filter-drier was not installed, is it worth having the installer come back out to install it?

Thanks for your help. I'm just trying to find out as much as I can about equipment I actually have.

John

[m-cooling]

that copper piece u see is a drier.the txv is inside the cabinet probably

[channelislands]

Im pretty sure that most ADP coils at thirteen sear still use piston metering devices. Regardless of that the metering device in that coil is what is designed for the system so no he does not need to come out and change that. That 6 inch copper peice is the factory filter drier.

Not all txv's have the sensing bulb located on the vapor line outside the cabinet. Some are internal from the factory(inside the cabinet).

[2old2rock]

A TXV will maintain a constant superheat, and will gain somewhere around 1 seer for you.
Just call the installer and ask if a TXV was installed.
Sounds like he also put in a drier.