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Hydronic Systems Pump Minimum Flow Methods

Norm Hall January 16, 2023 Control, Minimum Flow, Monday Morning Minutes, Pumps

Minimum pump flow rate is critical to the trouble-free operation and longevity of the centrifugal pump. In the last blog we described the use of …

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Bell and Gossetthydronic systemHydronicsNorm HallPumps

Pump Minimum Flow Using a Cla-Val Back Pressure Valve

Norm Hall January 9, 2023 Control, Minimum Flow, Monday Morning Minutes, Pressure Regulating, Pumps, Valves

Minimum pump flow rate is critical to the trouble-free operation and longevity of the centrifugal pump. The pressure sustaining valve or back pressure valve is …

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Bell and GossettHydronicsNorm HallPumps

Pumping From an Atmospheric Tank: Pump and Tank Control (Part 3)

Norm Hall January 2, 2023 Control, Monday Morning Minutes, Pumps, Variable Speed

Let me start by wishing everyone a Happy and Prosperous New Year. This blog begins the 14th year of the R. L. Deppmann Monday Morning …

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Norm HallPipingPumpsTanksvariable speed

Pumping from an Atmospheric Tank: Pump and Tank Piping (Part 2)

Norm Hall December 19, 2022 Monday Morning Minutes, NPSH, Pumps, Selection and Specification

What can be simpler than pumping water from an open or atmospheric tank into another tank or system? What seems simple to many opens a …

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Bell and GossettNorm HallPipingpumpsTanks

Pumping from an Atmospheric Tank: Pump Selection and Installation (Part 1)

Norm Hall December 12, 2022 Monday Morning Minutes, NPSH, Pumps, Selection and Specification

What can be simpler than pumping water from an open or atmospheric tank into another tank or system? What seems simple to many opens a …

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Bell and GossetthydrovarNorm HallNPSHpumpsvariable speed

Commercial Tankless Water Heaters: O2 Trim and Controls

Norm Hall December 5, 2022 Monday Morning Minutes, Plumbing System Design, Tankless, Tankless, Water Heaters

Gas fired water heaters remain the solution for most commercial water heater applications. Tankless gas fired water heaters are the choice of many engineers. Tankless …

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Heat Pump Water Heaters: Chilled Water Source (Part 13)

Norm Hall November 14, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

Many heat pumps used in Ohio and Michigan are water source for comfort heating and cooling. Today, we want to look at the opportunity to …

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ASHRAENorm HallWater Heaterswater quality

Heat Pump Water Heaters: Water Source Units (Part 12)

Norm Hall November 7, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

Many heat pumps used in Ohio and Michigan are water sources for comfort heating and cooling. Today, we want to look at the water source …

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Delta Tflow rateHydronicsNorm HallWater Heaters
elephant in room
elephant in room

Heat Pump Water Heaters: Example Apartment Building Costs (Part 10)

Norm Hall October 10, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

Your client is interested in a commercial R-744 refrigerant heat pump water heater solution. The example system I used in this blog is an apartment …

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ASHRAENorm HallWater Heaters
elephant in room
elephant in room

Heat Pump Water Heaters: Example Apartment Building (Part 9)

Norm Hall October 3, 2022 Electric, Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Plumbing System Design, Water Heaters

Air source heat pumps are beginning to get attention in conversations among engineers in the northern climates. I appreciate everyone’s patience as you opened this …

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  • Products
    • Overview
    • Pumps and Accessories
    • Boilers and Water Heaters
    • Hydronic Systems
    • Plumbing Systems
    • Steam and Condensate
    • Variable Frequency Drives (VFDs)
    • Glycol Installation
    • Snowmelt Designs
  • System Design
    • Overview
    • Project Gallery
    • Selection and Design Tools
  • Contractors
  • Service & Parts
    • Overview
    • Startup and Warranty
    • Parts
    • Service and Maintenance
  • Education
    • Overview
    • Training Opportunities
    • Factory Classes
  • About RLD
    • Overview
    • Team Deppmann
    • R.L. Deppmann Locations
    • Careers
    • Community Engagement
    • Press and News