Checking the performance of the air conditioner

A usual and practical way to check the performance of an air conditioner is to measure the temperature difference between the air at the evaporator inlet (return) and the air at the evaporator (insufflation) outlet in the maximum cold position. The difference between the two temperatures difference must be between 8 ° C and 14 ° C depending on the ambient temperature, relative humidity and model of the device.