The purpose of the domestic water recirculation system is to delivery hot water near a fixture during times when there is no draw. If someone is using hot water in the next room or apartment or process; the hot water is near enough to your fixture so the hot water is delivered in seconds, not minutes.
Plumbing Topic: Domestic Water Recirculation Systems Part 2
Let’s assume the domestic hot water supply is a total length of 1000 ft. That is the entire pipe on all of the floors. Let’s also assume an average of 15 BTU/hr/ft of loss through the supply pipe insulation. Now let’s assume the recirc piping is 300 ft total at an average of 10 BTU/hr/ft of loss. What flow rate is required for a 10 degree ΔT? What flow rate is required for a 5 ΔT?
Plumbing Topic: Domestic Water Recirculation Systems Part 1
The R. L. Deppmann Monday Morning Minutes series will focus on the plumbing portion of the new construction and building facility business for the next few months. The topics will be domestic water recirculating systems, pressure booster systems, volume and instantaneous water heaters, and mixing valves. I’ve had 6 job site visits in the last 2 months to help engineers, service contractors, and facility managers solve problems with domestic water recirculating systems. It seems this is a good place to start.
B & G ecocirc e3 with ECM Technology (Electronically Commutated Motor)
Bell and Gossett’s ecocirc pumps were introduced over the last few weeks. We promised to explain how the ECM technology provides more efficiency than standard induction motors. Let’s talk about the difference between a standard induction motor vs. a permanent magnet motor. With an induction motor, stator windings are arranged around the rotor so that when they’re energized, they create a rotating magnetic field.
Let us take some time to answer YOUR questions…
We received a great deal of questions from last week’s Monday Morning Minutes on the Bell and Gossett Ecocirc domestic water inline pump. Two of the most asked questions were; Why is more reliable? And How does it save energy? The ECOCIRC is more reliable because there are less moving parts. Here is a brief description.
R. L. Deppmann Company is now the new Michigan Representative for Lawler Manufacturing, Tunstall & Macon Controls
Lawler Manufacturing Company manufactures one of the deepest and most time-tested thermostatic mixing valve lines in North America. Tunstall specializes in the manufacturing of interior thermostatic elements for steam traps using state of the art technology. Macon Controls is a complete line of valve sizes and non-electric control models.
Boilers, Burners and The Deppmann Difference.
One size does not fit all. When you call R.L. Deppmann, we don’t try to fit you into the ONE product that we represent. Here, YOU HAVE OPTIONS! Our skilled sales team (includes 3 LEED AP’s on staff) will help you determine your best solution based on your unique design requirements and budget.
Low NOx Boilers in the State of Michigan
When other states were requiring LoNox on boilers, the Michigan Attorney General was suing the federal government; probably because of the effect of emission regulation would have on the auto industry in Michigan. This would only put off the inevitable and shift the focus to automobile emissions testing that was implemented county by county. Those days are gone. The Michigan Department of Environmental Quality (DEQ) is presently understaffed and doing the best they can. [Read more…]
NEW PRODUCT: Energy Efficient Ecocirc 19-14 Auto & Vario Heat Circulators
We are very pleased to announce the addition of the new ecocirc 19-14 heating circulators to our line of energy efficient products. As with the rest of the ecocirc line, this new offering also utilizes Electronically Commutated/Permanent Magnet motors, which by design are more efficient than permanent split capacitor induction motors. This technology also offers more flexibility than standard motors allowing us to add features via software logic rather than hardware that would otherwise add cost.
The V-Series Rotary Air Dampener
We all know the importance of maintaining proper O2 levels with burners. Newer controls and linkageless controls definitely have improved your ability to control O2. Advances have also been made with O2 trim, and the O2 sensors have become more reliable and a little less costly. Therefore, the burner manufacturer has the ability to make improvements in