Last time I did a 2 systems off 1 loop, we use 2 pump stations and branched off before the stations.
Hate to say this, but you can't use a street 90 on your gas line on your first floor unit.
Your work is beautiful though.
Do you have one of those heat welder tools(don't know real term) for fusing the plastic pipes together, my last company had that so we could put 90's in and make it all clean and professional. Definitely don't leave it to someone else because it's hard to find anybody that cares, if I had been that guy there is no way I would've butchered your job like that, I would've come back with the right stuff even if it meant I got a chewing.
Is it just hard to see the filter drier for the downstairs system?
That's because there isn't one! I did add one, but it was after the pic was taken.
Customer isn't real happy with the source lines, gonna call the loop guy back and see what he will do.
Numbers for the geo's seem to be spot on with it plumbed that way.
AS I understand it... Street fittings, along with reducing bushings... are a no-no according to natl gas code. Not sure why... however they are.
Anyone know the details of this code?
All things have a rating in our industry. All things are tested.
Although BI fittings exist, does not mean that they passed the strength test for all things that use BI.
BI used in boiler piping has a different strength test requirement than gas.
Bushings/street fittings have passed the strength tests for boiler piping, but failed to meet the requirement for gas piping.
Now, if you look at a manufacturers instructions on certain brand furnaces, they will recommend using a street 90 on their gas valves.
Goodman left gas entry is one example.
Now, one would say "hey, they can't do that! ASME says they can't!"
Except that manufacturers recommendations can trump it, primarily because they are responsible if it fails.
It's not exactly that street fittings and bushings are "banned", it's that their "not approved".
This is kinda related to PVC flues. No authority has technically "approved" PVC pipe for furnaces, yet it's been done for years.
The PVC manufacturer has approved their pipe for these installations, and thus can be used.