sealed room in winter question

Has anyone put their mini split compressor in their attic with ventilation for the
winter months? I know fujitsu are able to work in sub zero conditions but, I was
kind of hoping to run a ideal air 3ton unit, and they are not suggested to use
below 40. I don't really recall my prior compressor throwing off a ridiculous amount of
heat or condensation. I am figuring some you guys have dealt with this issue before
and it was worth an ask. Thanks for any insight.

simply install an ambient air control module which will keep the head pressure up by stopping the fan