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Was wondering what you guys think. Last fall, I was party to a job where 2 line sets had to be buried-60 feet each approx. Don't like doing this but was only the "helper" on this job. Each 3/4-3/8 set was sleeved in 4" pvc. One pair of ends are down turned 90s to shed rain, the other ends are 4x2 pvc couplers with spray foam seal.
Well, here comes time to evac/charge etc. Both units are 410a, ones a 2 ton, other 2.5. Got the 2 ton charged with some difficulty, but it's running ok. The other....not so much. Immediate frosting on suction, head is 450 while low side practically flies into a vacuum. The compressor rattles as the suction goes below say...60.
my question is: if there was a breach in the pvc, and the pipe got filled with water, and the lineset was submerged.....what would one expect in pressure readings?