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?
DriSteem Drane-kooler™ Used for Multiple Humidifiers
DriSteem Humidifier Company created the Drane-kooler™ to solve the problem of eliminating the steam condensate created from the heating of steam humidifier tubes and separators. …
Bell & Gossett SU Heat Exchangers – Sleuthing the BTUH Capacity (Part 2)
As I noted in our last R. L. Deppmann Monday Morning Minutes (Part 1), an engineer in the Detroit area asked a question we get …
Bell & Gossett SU Heat Exchanger – Estimation of BTUH Capacity (Part 1): Field Identification
An engineer in the Detroit area asked a question we get asked every month of every year. The way he asked it caught my attention. …
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 …
Break The Tie! Preso Ellipse Flow Meters for HVAC Hydronic Mains
The balance contractor often has a tough job when completing the flow balance of an HVAC hydronic heating or cooling system. Today’s engineering documents tend …
Balancing HVAC Hydronic Systems Part 5: Pressure Independent Control Valve (PICV)
Air side terminal units have used pressure independent control valves for a long time. These valves, also called PICV, are still relatively new in hydronics. …
Variable Speed Pump Control & Automatic Balance Valves : Part 4
A few weeks ago in the R. L. Deppmann Monday Morning Minutes (MMM) part 3 of this series, we showed that direct return systems with …
Balancing HVAC Hydronic Systems Part 4: Automatic Flow Limiting
Last week, the R. L. Deppmann Monday Morning Minutes (MMM) showed the advantages and disadvantages of manual balance valves. Today, we continue with automatic balance …