Quote Originally Posted by jpsmith1cm View Post
Whole rack or a couple of walk-ins.

It doesn't matter.

Charging by receiver capacity is a nice start, but if you aren't delivering quality liquid to the TEV, you aren't keeping temp, and you may not be able to pump it down into itself. Fact of life.

I used those racks as an example, but I can find others where charging to receiver capacity would severely undercharge the unit without going to a full rack system.
Absolutely. I was speaking to initial charging of simple WI system. No rule of thumb for actual total charge.