Bob “Hot Rod” Rohr, Caleffi training and education manager, leads an online webinar “Pumped Glycol vs. Drainback Revisited," from noon to 1 p.m. CT on Thursday, Aug. 25.
He takes a fresh look at solar thermal systems, revisiting the latest step-by-step system design.
There is no cost for the complimentary education series, Coffee with Caleffi, but registration is required.
Topics include:
- Solar design – step-by-step sizing information, tips and pointers for this important first step
- Expectations – how much DHW to expect from a system.
- The advantages of drainback vs. closed-loop glycol – by the numbers.
- Is there ever too much of a good thing with solar thermal?
- The sweet-spot jobs and how to look for opportunities
- Current information on the latest incentive programs in the U.S. and Canada.
Last month’s webinar, “Applying Pressure-Reducing Valves in Plumbing Systems,” was led by Julius Ballanco, P.E., president of JB Engineering and Code Consulting.
Topics included:
- What is a PRV (pressure-reducing valve)?
- Are there different types, sizes, configurations?
- How they work
- Do they have a Cv rating like a control valve or mixing valve?
- Selecting the right one for your project
- What kinds of approvals or certifications are applicable to PRVs?
- Does every building and every home need one?
- Is more than one needed in a given building?
- Does a PRV need to withstand high water temperatures?
- What can cause a PRV to make objectionable noise?
- What other devices are commonly installed on the same pipe leg?
- Common issues related to installation and maintenance
- Are there changes in technology or regulations that would affect PRV designs or product requirements?
