Do I need to add refrigerant after installing this condenser?

You'll need to have the system evacuated and recharged by someone with refrigerant certification. The old charge must come out before the new condenser goes in — this is not a DIY step in most areas.

Will this condenser bolt directly to my existing lines and mounting points?

Yes. It's engineered to the factory specification, so it uses the same connection fittings and mounting brackets as the original. No adapter work required.

What should I do before installation to avoid damage?

Inspect the condenser fins for shipping damage before you install it. If the cooling lines have any debris or contamination, flush them before connecting the new unit — a dirty system will kill a new condenser fast.