The State of Michigan is very specific in codes regarding sump pumps located in hydraulic elevators. Our latest and updated R. L. Deppmann Plumbing website …
Sump & Sewage Pump Design Calculations: Pump Head for Building Services
Today we want to help you in determining the pump head for sump and sewage applications. Simple or not, it is good to review the …
Sump and Sewage Pump Design Calculations – Old Pipe or New Pipe in Head Calculations
Today, the R. L. Deppmann Company Monday Morning Minutes starts a series of articles on sump and sewage system sizing tips. The pump head calculations …
Variable Speed Pump Control – More Detailed Curve and Area Control
Curve control, Area control, Sensorless control, Remote DP sensor control. Local sensor control: the shopping cart of speed pump controls can get overwhelming. We just …
HVAC Hydronic System: Parallel Pumping Specifications
OK. I get it! Parallel pumping is a design technique I should review on most of my projects where first cost and energy cost are …
HVAC Hydronic System: Parallel Pumps and Cost
Reduced cost is often viewed as the reason parallel pumping exists as a design option for engineers. In today’s hydronic heating and cooling systems, we …
Hydronic Pump Energy: Motor & VFD Efficiency – How Low Can You Go?
I’m in the middle of the series of blogs on parallel pumping. We can’t ignore the efficiency of variable frequency drives and motors when looking …
HVAC Hydronic System: Parallel Pumps and Standby Capacity
Giving up the 100% standby pump is often the major concern when using parallel pumping strategies for hydronic heating and cooling systems. This strategy …
HVAC Hydronic System: Controlling Parallel Variable Speed Pumps
The historical view of parallel pumping was to make sure all the staging points landed on the single constant speed pump curve. This avoided …
HVAC Hydronic System: Parallel Pump Operation and Curves
Parallel pumping in hydronic systems can save energy and construction capital costs. Today we continue the series on parallel pumping where we look at the …