parrots are tropical animal, they can stand for hot weather, but not cold weather. u may need a heater in winter rather a 24/7 air condition in summer. for an adult parrot, it's ok to keep them in indoor without direct wind blow nor heater in winter. in summer, u no need to switch on the air-con all the day. if u need, pls keep them away from the blowing hole of the air-con.
can u read chinese? if u can, there will be more responds to your questions.