一般地说4,5 个小时温度能将下来是正常的. 空调最好是长转,不但降温,还可抽湿. 选的过大并不好. 另外可把室外的散热板用水冲一下, 洗掉灰尘增加散热.
Your 空调 is too much best as out of BEST if you have a center 空调 for a whole house!
Do you have a center 空调 for a whole house? Or, a window 空调 for a single room?