HVAC Intake Extremely Loud

Problems related to residential installations.

HVAC Intake Extremely Loud

Postby albertngo » Wed May 03, 2017 7:27 pm

The loud intake vent is extremely loud. In the video link it is apparent that the sound is originating at the top of the vent and not the fan itself. I speculate it is the 90degree bend along with high wind speed that is causing the loud sound. Im no expert so any opinions will be greatly appreciated! Thanks!

*.be/4xV2j5uRQYU
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- HVAC Intake Extremely Loud

Postby HockingStevie » Mon May 08, 2017 8:39 am

Why is it so loud?
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- HVAC Intake Extremely Loud

Postby Freon » Thu May 11, 2017 7:13 pm

You are thinking correctly. Many times the return air system is too small for the size of the AC system. As a result you have the blower trying too hard to bring return air back thereby creating a high velocity flow. Try and change the 90 degree to 2@45. Try and increase the diameter of the return duct. Anything that increases the cross section size of the duct or decreases any reatrictions (90 degree elbows) will help.
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- HVAC Intake Extremely Loud

Postby miguelgarbutt » Wed May 31, 2017 7:06 am

I did not face this yet.

climatrolcs . com
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