RTAA Sound Attenuation
RTAA Sound Attenuation
(OP)
Have a chiller noisier than expected.
The discharge piping makes the casing and the oil separator resonate at a high pitch. Trane sells a sound deadening kit. It is not cheap, basically insulation to wrap the copressor, discharge piping, oil seperator.
Anyone ever try this kit? Did it work?
The discharge piping makes the casing and the oil separator resonate at a high pitch. Trane sells a sound deadening kit. It is not cheap, basically insulation to wrap the copressor, discharge piping, oil seperator.
Anyone ever try this kit? Did it work?
Take the "V" out of HVAC and you are left with a HAC(k) job.





RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
There is a loud high pitch whine from the compressor discharge piping, the frame holding the condenser coil, and oil separators that resonate like a bell.
I was in the subdivision, they have a valid complaint. In particualr those who like to try and open the windows rather than run the AC.
These units are louder than a pair of 90 ton, same model line, in the general vicinity at a church.
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
The subdivision, people hear it sitting in their back yards, and indoors if they open their windows.
There is a pumphouse on one side of the chiller compound, thinking about an L shaped wall to shield the subdivision.
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
If the difference is 3 dB the sound should be cut in half no?
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
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RE: RTAA Sound Attenuation
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
My advice from a service standpoint is to go with the wall.
If you have to you can install chimmneys on the fan discharges to get leaving cond air up and away from coils to prevent recirc.
The blankets do help cut the sound, but you pay a price in serviceablity.
RE: RTAA Sound Attenuation
RE: RTAA Sound Attenuation
With fire alarms, a rule of thumb is as you double the distance from a horn, the sound drops by 6 dB. The RTAA seemed to follow this pattern.
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: RTAA Sound Attenuation
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Regards
RE: RTAA Sound Attenuation
RTAAs were running louder than the spec
Have to measure the sound in the subdivision sometimes, but the neighbours seem appeased.
Take the "V" out of HVAC and you are left with a HAC(k) job.