looking for help on a abbrevation.

Hello Ladies and Gentleman,

just taking a poll on what way i should abbreviate a ACU unit. we have a extra one that kicks in should the main fail. would you go with B/U ACU for back up acu or EACU for emergency. i want to make sure when someone looks at the prints its easily identified. I will be changing the abbreviations print to reflect this.

I'm assuming that is an air conditioning unit. The term emergency usually refers to back-up power in case of loss of service from the utility company. That would not be the case here, so back-up would be more appropriate. Personally, I would not call it out as such on the plans. That would be covered in the spec or sequence of operation. I might go with something like ACU-1 for the main and ACU-1a for the back-up.

Depending of the FM software you use you might want to use ACU-2 or ACU-E, etc, so a search for ACU would be sure to turn up all ACUs and a list done alphabetical would also work well. $0.02

Rkent - I like that idea. we have multipile ACU's in the building so my boss just wanted a way we could call this one out has a back-up and not a regular unit when looking at the drawings.