Line Sizing and Piping Practice

[subzero*psia]

I am sure we have some experts about Line Sizing and Piping Practice out there. Any stories or experiences anybody would like to share?

Here is a thought... why would you put an oil trap in a liquid line if the refrigerant is in the liquid state? I have to admit, that one confuses me... in the suction line yes, but the liquid line? Even if it is being pumped 40 feet up the oil and refrigerant are mixed, both being transported... perhaps separation would/could occur during the off cycle?

[bernie]

possibly to prevent oil logging in the condenser say if a system is running extemely high heads??