Good morning ladies and gentlemen.

I have a GEA LT screw in a swing configuration. In LT mode the discharge feeds a open type flash intercooler. MT modes feeds the cooling towers.
LT -38c /-10c
MT -10 / 32c

Valves are manually changed between LT and MT. LT hp setting is set for 13.4b and the MT hp set for 19.7b.

I have a fellow colleague saying that both hp switches should set for the lowest value. I have scoured the internet trying to find a “good working practice” for swing compressor operation. I cannot find any source(s) as to why this needs to be the case.

I thought I would open this up to like minded individuals who could light the way....

Many thanks