Dear All,
i was doing testing and commisioning of AHU unit yesterday when i found that the water cooling condenser create unusual noise and vibration.

This had never happened to me before. can you guys give me an advices regarding this?

I don't know where the noise comes from but i suspect the pipe inside the condensor is too small and the water velocity flows thru the pipe is quite high.
I took the measurement and found that water velocity flowing through condenser is 8 m/s. Is this acceptable?

thanks for your suggestions...