AWHP design - suction accumulator

[desA]

desA, I have a case for the Court pending on 3 Carrier chillers (330 kW each, air to water) without SA.
On 3 machines +/-10 compressors (Maneurop/Danfoss scolls) broke in a timespan of +/- 1.5 to 2 years.

I should go for you conclusion I'm beginning to err on the side of being conservative & installing the accumulator more for peace-of-mind, than for pure functional requirements.

In almost every small HP split (no Copeland scrolls), you always see a SA.
But you can use perhaps also a 'post-SH-coil' in the suction line (some rows in you aircoil, just a wild idea from me right now) perhaps cheaper.

EEV on the new ones?

Thanks so much for the update, Peter.

I must say, I have also come to the same conclusion in regards to SA's. In many applications they really do provide the safety margin required for variable load patterns.