Went back the day after these were installed for the quarterly PM. We bid on them to replace 5 trane units but someone else got the job. Found multiple issues. Told the MGR the install was not complete. She was shocked.
No p-traps on these units. The ducts were not all sealed. The liquid-tite is called liquid-tite for a reason. The press. reg. on one of the units was leaking LP gas. I could smell it standing next to the unit.