Have you ever wondered what goes into a heating or air conditioning system for a large office building or another large building like a mall or a school? My name is Evelyn, and I am an HVAC architect. I design heating and air conditioning systems for large, corporate buildings. Making sure that a large building with many rooms or offices is efficiently heated and cooled is a very large job and is much more complicated than simply heating or cooling a home. This blog will educate the reader on how heating and cooling jobs this large are designed and completed.
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Designing Heating and Cooling Systems in Large Buildings
4 Reasons Your Furnace Is Making Strange Noises
Nicole Jacobs
With the advancements in technology, most furnaces have integrated sound-dampening features that decrease the amplitude of the sound waves, reducing unwanted sounds. Although the heating unit typically makes noise when operating, loud and strange noises could indicate an underlying problem. So if strange noise is coming from your system, hire an HVAC contractor to diagnose the problem. They will identify and fix the defective component to restore seamless and quiet system operations. Listed below are a few unfamiliar furnace noises and their root causes.
Banging Noises
If your heating unit makes banging noises, the ignition could be malfunctioning. This noise usually results from gas build-up in the combustion chamber that mainly arises during ignition. A weak flame, clogged burners, and low gas pressure may delay the ignition in the chamber. Furthermore, your heating unit will make banging noises when the ductwork contracts and then expands. In this case, your HVAC contractor will clean the burners and fix the supply lines to ensure adequate gas pressure. Additionally, they will seal the ducts with a lagging material, which is a soundproof solution.
Whistling Noises
Your HVAC system will make whistling noises due to restricted airflow. When a blockage impedes airflow in the air filters, ducts, or vents, the heating unit will work much harder to draw sufficient air for heating. Moreover, your unit can produce whistling noises if it is oversized for your home. This is because of strenuous attempts to push more air than the ductwork can handle. To remedy this noise, it is vital to engage a furnace expert to regularly clean the air passages and vent pipes for proper airflow.
Clunking Noises
A loud clunking noise from your heating unit could indicate a defective blower wheel. If a blower fan becomes loose and dislodges, the blades could scrap against the blower casing, producing knocking noises. In addition, when the fan belt is worn out, it may loosen and misalign or break, hitting the blower housing as it rotates. In this case, your HVAC specialist might suggest replacing the worn-out blower assembly components to ensure efficient hot air delivery through the ducts.
Rumbling Noises
Naturally, your HVAC unit will produce a gentle whoosh when it powers on. However, if the whoosh turns to a rumble, typically after completing a cycle, it could indicate issues with the burner. If there is a gas backup in the combustion chamber after a complete cycle, the gas will continue to burn, causing rumbling noises.
A noisy furnace will not only disrupt your ambiance but will also underperform, reducing its efficiency. Therefore, you shouldn't ignore these noises. Instead, call your HVAC contractor to unearth the cause of the noise and fix it.
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