Plan called for economizer mixing boxes to be installed on the bottom of the furnace, with the return air coming out the side, and the OA coming out the back. This is what we got.
- 5 ton systems, not sure what kind of mixing boxes these are, but they aren't right. oa choked down to 6/24 and return air choked to 8/24.
- On two of the units, the mixing box is install on the OA duct, left side of furnace, the return is ducted into the right side of the furnace.
- Why bother to glue the vent piping???
- The OA intakes are supposed to be 16/20 with 1/2" mesh on the inlet, we get resi style inlet hoods. yup, that will work.
The condensers arn't even wired (low voltage) and this contractor called the job done. There is also a 10 item punch list from the engineer. I found 8 more things he missed.
How do these guys live with themselves