Hi there,
I have heard two schools of thought on how to have your autoset pressure. One is leave at the widest range, say 4 to 20cm and let the machine do the work.

The other info I have heard is keep it within 5cm of your max pressure needed, so say if my maxium pressure needed was 17cm, have the auto set to 15cm to 20cm or 13cm to 18cm.

Can anyone shed light on how they have thiers set up?

Thank you

PS If anyone knows how to do the initial setup on the Puritan Bennett Goodnight 418a, please email me at tjnugent2002@yahoo.com. I would like to learn more about it.