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primary variable flow system chart
primary variable flow system chart

Minimum Chilled Water Flow Rates – Variable Primary Systems

Norm Hall May 1, 2023Monday Morning Minutes, Pumps, Minimum Flow, Chilled Water

I have written a great deal about the minimum flow rate requirement in centrifugal pumps.  We recently received an email from an engineer who was …

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variable primary systemsMinimum Chilled Water Flow Ratesflow rates

Lync by Watts Reverse Osmosis (RO) Systems

Norm Hall April 24, 2023Plumbing Systems, Monday Morning Minutes, Plumbing System Design, Water Quality, Glycol and Water Quality

We often receive requests for larger commercial reverse osmosis (RO) water systems. RO systems are advantageous in humidification systems where water quality is challenging. We …

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lync by wattsplumbing systemsreverse osmosis

Steam Humidification and DriSteem Models

Norm Hall April 17, 2023Steam, Humidifiers, Design and Selection, Monday Morning Minutes, Humidifiers

The last R. L. Deppmann Monday Morning Minutes outlined some water quality decisions when using steam for humidification. Which humidifier should you select based on …

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driSteemhumidificationssteam humidificationhumidifier

Water Quality and Commercial Steam Humidification

Norm Hall April 10, 2023Humidifiers, Steam, Humidifiers, Design and Selection, Monday Morning Minutes

Utility, process or heating boiler steam (S), clean steam (CS), and chemical-free steam (CFS) are all options in the steam humidification world. The search often …

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Steamwaterwater qualitycommercial humidifiers
the detection group
the detection group

Commercial Plumbing System Leak Detection

Norm Hall April 3, 2023Monday Morning Minutes, Plumbing System Design, Leak Detection

Often engineers will voice concern about failure of an underground pump and the possibility of water damage. The key to reducing any damage is the …

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plumbingplumbing system designleaksplumbing leaks
images of buildings and parts
images of buildings and parts

Free Cooling Heat Exchangers (Part One)

Norm Hall March 27, 2023Monday Morning Minutes, Free Cooling, Free Cooling, Heat Exchangers, ASHRAE 90.1, Plate Type, Hydronic System Design, Codes and Standards, Energy and Water Saving, Chilled Water

The ASHRAE young engineers heard about the free cooling system in the recent tour of the DTE Vantage Dearborn Central Energy Plant. The free cooling …

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gasketed plate typeHeat Exchangersfree cooling heat exchangers
hoffmann thermodisc trap from Xylem
hoffmann thermodisc trap from Xylem

Disc Steam Traps for Higher Pressures

Norm Hall March 20, 2023Monday Morning Minutes, Steam, Traps

The ASHRAE young engineers saw a lot of steam in the recent tour of the DTE Vantage Dearborn Central Energy Plant. The plant manager pointed …

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disc steam trapsSteamHVAC Systems

Tour of the DTE Vantage Dearborn Central Energy Plant

Norm Hall March 13, 2023Hot Water Systems, Water Heaters, Monday Morning Minutes, Water Heaters, Plumbing System Design

I recently enjoyed an ASHRAE young engineers (YEAH!) tour to a DTE cogeneration facility.  This appears, to me, to be a state-of-the-art facility which provides …

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DTEenergy plantFord Motor CoASHRAE

Lync by Watts – Packaged Water Heater LC-Q

Norm Hall March 6, 2023Water Heaters, Plumbing System Design, Hot Water Systems, Water Heaters, Monday Morning Minutes

Lync LC-Q, A Quick Answer to Quality Water Heating Lync by Watts has created quality packaged water heater solutions in their “LC” series. The LC-Q …

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lync by wattspackaged water heaterplumbing systems

Packaged Domestic Hot Water Heating System Advantages

Norm Hall February 27, 2023Monday Morning Minutes, Water Heaters, Plumbing System Design, Hot Water Systems, Water Heaters

What Does the Packaged Hot Water System Look Like? The packaged hot water system can include everything needed to turn cold water into hot water …

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packaged mechanical systemsPackaged Domestic Hot Water Heating Systemdomestic hot water heatingwater heating
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  • Products
    • Overview
    • Pumps and Accessories
    • Boilers and Water Heaters
      • Water Heater Stock
      • Boiler Stock
    • Hydronic Systems
    • Plumbing Systems
    • Steam and Condensate
    • Variable Frequency Drives (VFDs)
    • Glycol Solutions
    • Snowmelt Designs
  • System Design
    • Overview
    • Project Gallery
    • Selection and Design Tools
  • Water Solutions
  • Contractors
  • Service & Parts
    • Overview
    • Startup and Warranty
    • Parts
    • Service and Maintenance
  • Education
    • Overview
    • Basic Hydronic Blog Articles
    • Training Opportunities
    • Factory Classes
  • About RLD
    • Overview
    • Team Deppmann
    • R.L. Deppmann Locations
    • Careers
    • Community Engagement
    • Press and News