Pumps can be oversized for several reasons. Even a few degrees of inclination or misalignment will allow air to get locked in the pump.īoth oversized and undersized pumps can lead to noises in the system, but the solution to deal with each case is different. At this point, you can close the valve.Īfter doing this, make sure that the pump has been installed correctly. Once the hissing ceases, you will see a slight dribble of water, indicating that the pump no longer has air. Slowly open the valve until you start hearing a hissing noise. Modern pumps have bleeder valves that make the process very easy. When this happens, it’s important to inspect the water lines and bleed the system. If you don’t have an air separator installed, you will most likely have to deal with air in your system at some point. THE DOWN SIDE LIFE TOWER CREAKS HOW TOLet’s take a look at a few problems in a building system that are commonly the cause of pump noises, and how to fix them. Loud and unusual sounds emanating from circulating pumps are always a red flag, a sign that something is wrong either with the pump or in the water lines. Thankfully, pumps often signal that there is something wrong, and these signals usually come in the form of odd and loud pump noises. When the pump fails, water is not circulated as efficiently or at all, compromising the performance of your entire system. The condenser water pumps take hot water from the condenser to the cooling tower, and the chilled water pumps take cold water from the chiller to your AC unit. In a traditional cooling system, you have 2 types of water pumps: condenser water pumps and chilled water pumps.
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