**LG Air Conditioner Repair Q&A: What are the air conditioning base and air conditioning accuracy?**
Source: Beijing LG Air Conditioner Repair Center
http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3760795
Due to varying requirements for air-conditioned rooms, the parameters of the air environment and their control accuracy also differ. The grade of an air conditioning project is often defined by the air conditioning base and air conditioning accuracy.
**Air Conditioning Base:** This refers to the required benchmark temperature and relative humidity for the air-conditioned room. (Beijing LG Air Conditioner After-sales Service Phone Number)
**Air Conditioning Accuracy:** This refers to the allowable fluctuation range of temperature and relative humidity within the effective area of the air-conditioned zone (i.e., the air-conditioned room) over a specified period of time.
For example, if a certain air-conditioned room requires a temperature (t) of (20 ± 1)°C and a relative humidity of (50 ± 5)%, this means that the air conditioning base for the room is t = 20°C and relative humidity = 50%, while the air conditioning accuracy is Δt = ±1°C and relative humidity = ±5%. In other words, the temperature in the air-conditioned room should not exceed 21°C or fall below 19°C, and its relative humidity should not be greater than 55% or less than 45%. As long as these parameters remain within this range, the operation of the air conditioning system is considered qualified.