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What happens when demand drops in a closed loop variable speed system? What is the operational sequence and what logic does the controller use to vary the speed of the pump? Let’s begin our discussion with the following...
Read MoreOver the last few weeks the we’ve looked at pumping issues with multiple condensers and pumps. We have received questions about the topic, including these two:
Why do I need cooling tower outlet On-Off valves if I have an equalizing line?
Why do we see outlet On-Off valves on almost all jobs in North Carolina and only half the jobs in Michigan and Northern Ohio?
Read MoreIn our last blog we covered (in detail!) the step-by-step process of proportionately balancing a hydronic system. But many of you may be wondering if all that legwork is truly necessary when theoretically....
Read MoreBy Chris Edmondson
In a previous blog we discussed how to determine the flow for a commercial sewage lift station so you determine the necessary pump capacity. Today we are going to discuss Total Dynamic Head, which is also critical to sizing a pump for a sewage lift station. Not only is it absolutely necessary to select a
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