I've been mostly leaving everyone alone, don't want to be in the installers' way. I think there may be a few things to bring up tomorrow, though. Overall I am still very happy with the company; the install crew isn't quite as detail-oriented as they could be but it's obvious that they aren't hacks.
Photos are here.
- The lineset was left open outside. Isn't that bad with 410A?
- I don't like the swoopy lineset; admittedly that is just cosmetic and I'm not going to demand that it be redone or anything like that.
- The too-tight zip ties and tubing hanger screwing up the Armaflex, on the other hand, needs to be corrected. Is that something I should hold off on bringing up, or would it be better to mention it tomorrow morning.
- They forgot to put the furnace feet on. This is important, as the old system rusted out from direct contact with that concrete floor. I did mention this (the furnace feet were onsite) and the response was basically "crap, no one told me". I assume this is something they are going to take care of tomorrow.
- The furnace is inclined about 3/4" towards the back; installation instructions require it between level (my preference) and up to 1/2" towards the *front*. Is this something I should hold off mentioning until final inspection? They don't seem to have been concerned with the out of level so far.
- The ThermoThimble is just not installed at ALL according to directions. This is something I'd requested. Since the lineset isn't hooked up yet, the best solution may well be for it to somehow mysteriously be installed correctly tomorrow.. I don't think they'd appreciate micromanagement on installing it, but there's just no point using it the way it's installed now.
- I don't love the box between furnace and coil, a sloped transition would look much nicer, but that seems like another cosmetic point that I shouldn't insist on.
- The air filter area doesn't look like it's going to work very well. Turns out that the 4" media filter box Carrier includes with their furnaces now is very flimsy and poorly thought out. 4" of the 16x25 filter area is blanked off, and then the radius ell's junction with the filter box takes off another couple of inches. That's almost a third of the filter gone and I'm a bit concerned. My plan at this point is to see what the static is when the system is started up, and if it's okay wait and see how the filters do. I may ask to be switched over to the Air Bear Right Angle when they come out for the fall furnace startup, or maybe earlier if there are airflow problems with the restricted filter I have now.
- Along similar lines, there are no turning vanes in that ell near the filter and the radius is tight enough that the fitting is effectively a square one airflow-wise. This is also against some of the fine print in Carrier's installation instructions - they require turning vanes in this situation. I'm also concerned about the takeoff from the main return trunk and the supply to the main supply trunk, both of which are square.. with the existing and not practical to change ductwork, I might end up needing the third of an inch of static that's being used up on those three elbows - and in any case it would allow filters to last longer. My plan right now, since it's all in, is to see what the startup static pressure is and use that to decide how important having the vanes put in is.
- The liquid line filter drier has not been installed near the inside coil, as specified in the installation instructions. This is another one where I don't want to micromanage, but also would hate for them to have to pump the system back down and braze it in if they really are neglecting to put it in, or planning to put it outside instead of where the instructions clearly say to put it. Basically, would you rather have something like this pointed out sooner or later? I really don't want to be annoying, but I also want it installed completely correctly.