[Pete]

I am installing a new condensor that will be 20 feet below the evaporator with approx. 50 total feet of tube. Since I am pumping 20 feet staright up will this have any effect on head pressure? IF so how much do you think? The Condensor calls for a # 65 piston valve and the coil came with a # 70 valve. What does the different sizes do to pressures. Such as a 65 compared to a 70 or a 60 compared to a 65? Thanks for any info.
Pete

[PS Staff - Sheila]

It sound like this is a commercial unit.

So I am not familiar with this set up.

[nangel78]

I am not familiar with this either. I would concur with Sheila.