Hi, I'm not familiar with aircon, hope you guys can advise here.
I have an exisitng inverter system 3 which is getting old (8 years) for the 3 bedrooms, and considering of replacing it. The pipings are run in the false ceiling from the developer, so thinking of just changing the outdoor and indoor units only.
1. Is there limitation of what brand/model (both indoor/outdoor) I can replace if use back existing pipings?
2. Saw that price quotation usually include installation and pipings. Do I get discount if only change indoor/outdoor units?
3. I saw quite a few times mentioning about 2 trips installation? What does it mean?
Thanks.