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 …
Bell & Gossett ESP-Systemwize Pump Selections: Part 2
ESP-Systemwize provides a number of pump selection choices. Which pump should I select? Which pump should I fight for in a competitive bidding environment? Today, …
Bell & Gossett ESP-Systemwize Pump Selections
ESP-Systemwize is a powerful tool provided to the industry by Bell & Gossett. As an engineer or designer, you may want to explore the options …
HVAC Hydronic Pumps: Impeller Trimming with a Drive (VFD)
In the last R. L. Deppmann Monday Morning Minute we covered the use of a B&G Triple Duty Valve to set the maximum speed in …
HVAC Hydronic Pumps: B&G Triple Duty Valve for Proportional Balance
The ASHRAE Standard 90.1-2013 and the State of Michigan 2015 Energy Code both require the trimming of impellers or reduction in the maximum speed when …