Digital scroll condensing units on R134a

[beachbum]

Hi, wondering if I could get some thoughts from anybody regarding copeland digital scroll units. I am looking at a job in a club which will have:
Keg cold room needing 5.5 kw at -5 sst
Bar cold room 7.5kw at -5 sst
Kitchen cold room needing 3kw at -5
2 glass chillers needing 800w and 500w at -5 sst,
I have been reccommended by supplier to go with a packaged condensing unit with one fixed speed and one digital scroll compressor giving a total of 18kw on R134a. What do you guys think of that recommendation and what other suggestions do you have. Reasons for going this way are limited space for units around club, rooms are at opposite ends of club (approx 50 m apart), so one pipe run across building instaed of multiple runs. Energy efficiency with the digital compressor. R134a for efficiency.
Any thoughts would be appreciated and if any questions i will answer.

Cheers

[THE DUDE]

I think the Digital Scroll works very well for capacity control and reduced compressor cycles. When set up properly it should stay close to your Design SST.