Air Handling Units (AHUs)

On the first part my friend if you have total amount of air and tons to be delivered for the system , total system pressure drops, and also if you have performance curves of the fans to analyse the system you can forward me at ffallas@climaideal.com and I can help you further...

regards

Hi , interesting question , to run one AHU every 12 hour; it is obviously a high initial cost. But efficiency wise, for two running AHU at the same time I thin it will be lower efficiency that is because the air restrictions and even the fan restriction will be almost higher and multiplies by two i.e. 2 ahu filters , 2 fan bearing friction , 2 volume dampers , etc.. I think this will almost rise the drops of the pressure which needs to be overcome by the fan . I feel that this a good mechanical reason but i dont know if there is conflict in the electrical reasons of the fans.

looking forward to hearing from you

Regards

Issa Petro ( Petro_1983@hotmail.com )

Hi Petro,

Both of the AHU got it own VSDs. That why i thinking if we run both and split up the air flow. won't that increase the life span of the equipment. Imagine the motor for the AHU is not over stretch.

So what u think ?