Carrier 38/40GXQ with 49' line : factory charge is ok or extra refrigerant?

Hi there,

I bought a Carrier 38/40gxq. (With 1/4 & 1/2 refrigerant line)

When the company installed it they said that the factory charge was enough to supply up to 65' of line. (I've got 49' line lenght here)

But i checked on carrier website the installation manual for this unit
(http://dms.hvacpartners.com/docs/100...8-40gx-5si.pdf) and found that they say something else!

If you look page 9 they say that the factory charge is good for 25ft, after that lenght you have to add 0.1oz of refrigerant per extra foot of piping...

It make 2 days that the unit seem to work fine. I tested the heat mode and it seem to work well too...

So this is ok??

Thanks ahead of time for your response!