A contractor included some performance data with the proposal.
Since I will purchase on Saturday (or Monday at the latest) I was just looking at the data.

The performance data was "Rated with 25 feet of 3/4 suction and 3/8 liquid line".
The proposal listed the lineset as 7/8 x 3/8. The line will run run more than the rating length (maybe 40-45 ft). Should the diameter be increased with the length of the line?