You really don’t want to miss this one! Save August 15th in your calendar for our 3rd Annual Mechanical Equipment Customer Appreciation Golf Outing.

2019 is our 20-year anniversary, so we are going above and beyond with prizes and fun.

Come and take a shot for a chance to choose one of 3 prizes in our Hole-in-One Contest, a 2019 Ford F-150 Pick-Up Truck or His & Hers Harley Motorcycles or $50,000.00 cash! Do you feel lucky?

Miss your chance at a hole-in-one? You can still win prizes in our Longest Drive, Longest Putt, and Closest to the Pin contests. But if that weren’t enough (it is our 20th Anniversary after all) we will also have a special raffle, drawing 6 names where:

  • 1 player will get one chance to make a 60-foot putt for $2,500;
  • 4 players will each get one chance to make a Hole-in-One from 165 yards for $50,000 (all 4 could win); and
  • 1 player will get one chance to make a Hole-in-One from 165 yards for $1,000,000!

Seriously, we love our customers and want to share our success with you. We wouldn’t be in business without your support.

We hope you can join us for a beautiful day of golf at the newly renovated Makray Memorial Golf Club® in Barrington, IL.

Lunch will be served before golf, with fine dining and beverages after.

Details:

August 15, 2019

Makray Memorial Golf Club®
1010 S Northwest Highway (Rt. 14)
Barrington, IL. 60010
847-381-6500

Lunch: 11AM
Golf: Shotgun start at 12:00 Noon
Dinner: 6PM

Format will be a “Shamble”:

  • Everyone will tee off on every hole, then everyone’s second shot will be from the spot of the best drive, (you pick up your ball and move it to the best drive spot).
  • From there, everyone plays out their own shots on each hole.
  • The team event will be a 2 best ball, foursome.
  • Scores will be handicapped (using the Callaway System) and prizes will be awarded to the winners.

RSVP: Please respond no later than Friday July 12thSpace is limited, reserve early.  Call your individual Sales Rep or call our office at 847-526-3095 to confirm a reservation and Windbreaker Jacket size.

We all know that designing an efficient heating system is essential for your clients. So, we wanted to share a recent post from one of our top product lines, Patterson Kelley where they take a stand on the debate between variable primary or primary secondary piping and even offer a third, new option with their NURO® Touch Screen Control System.

 

Hydronic Boilers Piping Arrangements

Just like we would debate over sports, music, or politics, engineers have long held strong opinions about piping arrangements for hydronic heating systems.  Which is better:  Primary-Secondary or Variable Primary?  They each have their benefits, but most boiler manufacturers tend to side with Primary-Secondary.  Wouldn’t it be nice to have a different choice?

What is a Variable Primary Piping System?

In Variable Primary piping systems, there is one set of system pumps, generally piped in parallel, that distribute water through the heating equipment and terminal units.  Heat generated by the boilers is sent directly to the terminal units.  A Variable Primary piping arrangement can result in lower initial costs due to the installation of fewer pumps, less piping, less electrical, etc.  Variable Primary systems are generally considered to be more energy efficient. This is based solely on the concept that fewer pumps use less energy.  For any given installation these assumptions may or may not be true, but they are accepted when choosing between Variable Primary and Primary-Secondary piping arrangements.

What is a Primary-Secondary Piping System?

The Primary-Secondary piping arrangement includes two sets of pumps, system pumps and boiler pumps.  The system pumps distribute water to the terminal units and the boiler pumps circulate water through a loop that serves the heating equipment only.  The two piping systems are decoupled through what is commonly referred to as a “zero pressure bridge”, which hydraulically separates the boiler from the system. Traditionally, Primary-Secondary piping arrangements have meant full flow in the boiler loop and variable flow in the system loop.  Manufacturers tend to prefer Primary-Secondary because it ensures proper flow through the boiler.  Although a few manufacturers have boasted “Zero Flow” capabilities for their boilers, engineers know that no flow means no heat transfer; this begs the question, “why is the boiler firing?”  Engineers have begun to shy away from Primary-Secondary due to the perceived excessive pumping energy; but is that really the case?

A Third Option

With the advancement of on-board boiler controls like the NURO® Touch Screen Control System, there is now an additional option: Variable Primary-Variable Secondary.  The NURO® can vary the speed of your boiler pump, equipped with either a VFD or EC motor. As the boiler firing rate varies, the pump speed and flow adjust accordingly.  It’s the best of both worlds; flow rate ensured through the boiler, and energy savings associated with variable flow.  One might argue… “what about installation cost?”  Yes, there is slightly more piping associated with a Variable Primary-Variable Secondary piping arrangement, however, the installation cost is not significantly more.  Variable primary systems require a two-way control valve on each boiler to prohibit flow through an unfired boiler.  A boiler circulator with an EC motor is marginally more expensive than the control valve.

Next Step?

Interested in more information on the Nuro system and how it might help your clients? Give us a call at 800-355-7061 and we’d be happy to answer any questions or help you with the engineering specifications.