Hi. I'm working on a 5hp ducted unit. Previously the indoor have a built in cap tube. Unfortunately the outdoor is dead. So I'm replacing with a new outdoor but the outdoor already have cap tube in it and filter drier. Can I replace the outdoor plug and play or I need to remove the cap tube indoor or outdoor? If the outdoor also have a built in filter drier can I add an external drier at the pipe?

Btw the air con is a single split ducted r22. I'm urgently need this technical explanation. Please help.