Some systems are much louder than others. John68 New Member. noisy ventilation system Discussion in 'Troubleshooting & Diagnosis' started by John68, Dec 31, 2005. Computer fans can get pretty noisy, but there are a few things you can do to reduce the din. Noisy Air Vents, High-Pitched Noise: All air vents, meaning supply registers, ceiling diffusers, floor vents, and return grilles make some noise when the system fan is running. And ductwork can carry the sound of a noisy blower all over the house. This is the most common HVAC system set up in newer homes. This is normal. Some systems are louder than others. How to Fix a Noisy Computer Fan. The whole system is connected to an engine on the roof (metal pipe with a mushroom shaped engine on the top). They designed the homes to each have its own ERV (energy recovery ventilation) system, which ensured that the total air volume of the homes were refreshed regularly. Air exchange is a process that generates a specific sound, which can be optimised by the proper combination of system components, as well as the correct system design. I have a noise in the ventilation system - the fan that runs most of the time and when the heater or AC is in use. 1) The level of the system can be set from 1 to 10. Here's how to quiet disruptive PC equipment. One closed vent may not make much of a difference, but if two or more of these closed, your system will get noisier. Joined: Dec 31, 2005. Is the MVHR system noisy?Those who consider installing residential MVHR systems tend to have concerns about the noise that ventilation devices can generate. If I turn the level of the system all the way down to 1, the noise level in the bathroom and the kitchen is still 50-52 decibel (when the measurement tool is held next to the ventilation hole in the bathroom/the turned off exhaust in the kitchen). The first is an electric heat pump that handles both heating and cooling functions. If the return air in your home is getting unbearable, opening the air vents should be your first step. Now that R22 refrigerant has been replaced by R410-A, adding refrigerant to an old system has become expensive enough to warrant replacement of the system. Hi, We have moved into an old apartment from 1885. But I suspect your problem is caused by hot air rushing into a cold duct, which makes the metal expand. Messages: 11 Likes Received: 0. Range hood vent system. It is currently set to 5. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home. The exhaust fan makes a lot of noise but doesn’t move much air – Bad ducting of kitchen exhaust reduces the air flow, just as it does with bathroom exhaust fans. If the noise drives you crazy, new spring-loaded backdraft dampers ($9 to $30, depending on the size) should solve the problem. 1. The majority of our residential customers have central forced air heating and cooling, and one of two heating ventilation and air conditioning (HVAC) equipment arrangements. Noisy central ventilation system. Open the Vents. A central ventilation system was installed in the bathroom and the kitchen in all the apartments before we moved in. Often a stiff wind will open vent dampers, causing them to periodically clang shut. Excessive noise from an older unit is usually a sign of its age, and may indicate serious problems like refrigerant leaks or a faulty compressor. Dec 31, 2005 #1. You might hear some innocuous creaking, but if the duct is rubbing against wood, it might suddenly “pop” and reverberate, then pop again as the metal cools.
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