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What components make up the water side of a WSHP design besides the heat pumps themselves? And what “best practices” should engineers observe to optimize the efficiency and longevity of water side equipment?
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In our last blog we explained why in real life HVAC applications, variable speed pumps almost never operate at zero speed. Even at no flow, the impeller must be spinning enough to produce some amount of pressure at the 2-way valve in order to quickly establish full flow at the critical circuit IF demand suddenly occurs. Here's a silly way to think about it....
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What are your options when unbalanced circuits in an existing hydronic system are creating comfort issues due to underflow or overflow through coils? We just spent the last twelve blogs describing the various methods for balancing a start-up system but do those same methods apply to existing systems and retrofits?
The short answer is....
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Designing, installing and balancing hydronic system became infinitely easier with the introduction of a handy little gadget called a pressure independent control valve or “PIC” valve. These valves, which first hit the market nearly two decades ago, have revolutionized hydronic balancing....
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If you’ve read Parts 1 thru 9 in this Hydronic Balancing Series then you should have a solid understanding of the fundamentals of balancing. If not – go back and review the previous blogs. You need these fundamentals to understand what we will discuss here in Part 10, which is...
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