Hydronic system pumps and other HVAC and plumbing equipment will often have a variety of motor choices to specify. One of the newer additions to …
How to Limit the Speed of the Pump using a Danfoss Variable Frequency Drive
In this Service Tip of the Month, we demonstrate how to limit the speed of the pump using the Danfoss Variable Frequency Drive (VFD).
Double Suction Pump Specification: Rotating Pump Elements
We continue to examine the double suction pump specification for HVAC and hydronic systems. Your specification may have a paragraph or two about the shaft, …
Bell & Gossett Hits One Out of the Park with their New Double Suction Pump
The 2019 MLB season will be starting soon and it is fitting to announce a home run by Bell & Gossett (B&G). They did it …
Over-Speeding of B&G Variable Speed Pumps
I hope everyone had a wonderful Thanksgiving celebration. Here at Deppmann, we are thankful for the great industry we serve and the great people who …
Bell & Gossett ESP-Systemwize: Personalize It!
This short R. L. Deppmann Monday Morning Minutes again features the ESP-Systemwize pump selection program from Bell & Gossett. There is a great deal of information on the selection results. How do limit what I see on a day to day basis and how can I see my comfortable traditional “Oak Tree” curves?
Bell & Gossett 1510 Pump Model Numbers: Field Estimation of Flow Rate
Oftentimes an engineer or contractor is contracted to remodel or add to an existing building. During the site visit, they find a pump tag with …
HVAC Variable Speed Pump Control Head: Part 2
In the last R. L. Deppmann Monday Morning Minutes (MMM), we introduced the basic concept of an HVAC variable speed pump control head, modeling a …
HVAC Variable Speed Pump Control Head
When we show variable speed pump curves, we also want to show the control curve. This control curve looks very similar to a system curve …
Bell & Gossett ESP-Systemwize Pump Selections: Part 3
Happy Memorial Day! Today we celebrate and remember those brave patriots who sacrificed their lives while serving in the Armed Forces protecting the freedoms all …