Extending pipe run for split system

[LateralLeap]

Hi,

I'm looking for some advice from someone who knows about installing split air conditioning systems.

I have just bought a split system that is pre-charged and has 4.8m x 3/8" copper refrigerant pipes.

I need to extend this pipe run to somewhere between 6m and 8m.

I have the following questions:

If I extend the pipe run using refrigerant grade copper pipe, does this have to be brazed or can it be soldered?

For a longer pipe run, should I increase the diameter of the pipes and if so, will I need to add additional refrigerant to the system?

Thanks

[mattison]

Your best bet would be to let a pro handle the hook up. The lines need brazed and then the system is required to be put in a vacuum and leak check before the refrigerant is released then the charge would need to be trimmed. None of this is DIY for the homeowner.

[LateralLeap]

Thanks, although that is likely to cost more than the unit :-)

[Ed Imeduc]

Thats why we say get 3 bids for the job.Have them put it in if your not EPA to work with freon.

ED :D