Here is an image of the manual page

Oh, and another thing, if you go to Fujitsugeneral.com and select Contractor, on the left side it will give you their entire catalog for download. All this info is there.

Thanks, Jackfre. I will install a 4 ton outdoor unit (AOU48RLXFZ) with 6 indoor units (12 and 9 BTU units). There will be two branch boxes. In the Fujitsu manual, it tells the maximum distance from branch box to indoor unit is 49 ft. Does it mean that each pipe (1/4" and 3/8") can have a max of 49 ft length? Or, does it mean that the total length of 1/4" pipe + 3/8" pipe needs to be less than 49 ft ( in this case each pipe becomes max ~ 25 ft length) ?

Both lines are 49' each. It's a given that distance will be spaned by 2 lines.

As Klem said, Point A to Point B. Don't feel like the Lone Ranger on this. I cannot tell you how often people ask this question.
FYI, I met a contractor up in the N CA area a couple years ago who did two houses. they were virtually identical. One owner chose to go conventional ductedhigh efficiency LP and AC. The other chose the HFI system you are looking at. The contractor opined that both systems were almost identical in installed cost. When asked about the operating costs he said that the HFI system was running at about 45% of the cost of the conventional system. I think it a good choice on your part.

Thanks everyone!

I was wondering if I could increase the manufacturers maximum line set on a Daikin Multi Split Heat Pump????