Fokker were one of those companies that tried to have an option for everybody. The "fit" I have been used to had two pairs of recirculation fans and option to use ECON on the packs to minimise bleed air demand. We also had a local "mod" of a fan extraction system in the rear of the cabin to help with ground cooling on hot days when we also shut blinds on the sunny side and turned off the recirculation fans (even if just for the peace and quiet). The APU was only just up to job on hot days as were the packs. But aircraft equipped with the RR type APU and "Tropical" packs are apparently the Bee's knees, but we never got to see any of these.
Standard button settings for flying was everything "Dark" ie. no ECON (unless very small Pax numbers) and all recirculation fans on.
PM