Field measurement and analysis on temperature fluctuation range of room with split air conditioners in summer

In order to understand the actual situation of temperature fluctuation range of room with split air conditioners in summer, field measurement is done in Beijing, Wuhan and Hainan in the summers from the year 2011 to 2014. Compares the temperature fluctuation range with that in some central air conditioning rooms. The results show that even in the room with a constant speed air conditioner, the air temperature fluctuation is 1 to 2 ℃ during the air conditioning temperature control stage and the temperature control precision is ±0.5 ℃ to ±1 ℃, less than those of some of the central air conditioning rooms.