1, the normal or low point of the machine dew point temperature, indoor cooling slow cause and solution
Air supply air volume is less than the design value, the number of ventilation is less, please check the fan model is in compliance with the design requirements, the impeller is correct, the belt is loose, open the large air supply valve, eliminating the wind shortage factors.
The return air system two times, two times the return air volume is too large, please adjust, reduce the two return air.
Air conditioning system room, air distribution is uneven, please adjust, so that the room air distribution.
2, the system measured air volume is greater than the design of air flow generation causes and Solutions
The design of the system is less than the actual resistance resistance, thus increasing the air flow of the fan, conditions can change the fan speed.
The design of the fan capacity is too large, please turn down the volume control valve, reduce the air
3, the system is less than the actual amount of wind flow design and Solutions
The actual resistance of the system is greater than the design resistance, the air quantity of the fan is reduced, the condition is permitted, the improvement of the wind pipe component, and reduce the resistance of the system.
The system has a blocking phenomenon, please check to clean up the system may be blocked.
The system should be of air leakage, plugging.
The fan is not up to the design capacity or impeller rotating in the wrong direction, the belt slipping, check and remove the factors that affect the fan output.
4, indoor noise is greater than the design requirements of the causes and Solutions
Fan noise is higher than the rated value, please determine the fan noise, check whether the fan impeller touches the shell, bearing is damaged, damping is good, symptomatic treatment.
Wind pipe and valve, wind speed is too large, resulting in airflow noise, please adjust all kinds of valves, air vents, reduce the high wind speed.
Air duct system noise elimination equipment is not perfect, please increase the noise reduction elbow and other equipment.
5, the total supply air volume and the total air volume does not match, the difference between the larger causes and Solutions
Air flow measurement method and calculation is not correct, please review the measurement and calculation data.
The system of leakage or short circuit of the air flow, please check the plugging, eliminate the short circuit.
6, indoor air velocity distribution does not have the causes and Solutions
Airflow organization design is not considered, should be based on the measured airflow distribution map, adjust the position of the air supply port or increase the number of air supply.
The air supply of the air supply outlet is not adjusted evenly, does not conform to the design value, and the air supply air volume should be adjusted to meet the design requirements.
