Taco announces the release of the 0034e and 0034ePlus ECM High-Efficiency Circulators for large residential and light commercial hydronic circulation. The 0034e features an easy-to-use dial while the 0034ePlus offers an intuitive digital user interface with real-time performance feedback. Both versions are available with Cast Iron or NSF certified Stainless Steel volutes with rotated flanges.

With the easy-to-use dial of the 0034e, you can choose between activeADAPT (Taco’s self-adjusting proportional pressure), Low, Medium, High and 0-10V DC analog or PWM digital input. The digital 0034ePlus offers more with activeADAPT, 5-constant pressure settings, 5-proportional pressure settings, Min/Max fixed speed and 0-10V DC analog or PWM digital input. Both are dual voltage and provide 34 feet of head and 50 gpm max flow. In addition, they come with Taco’s exclusive features and benefits including; SureStart® automatic unblocking and air purging, BIO Barrier® black iron oxide protection, flange nut-grabbers, dual electrical knockouts and rotatable control covers.

This new addition to the legendary 00e Series® reaffirms Taco Comfort Solutions’ position as the industry’s leader in high-efficiency, ECM technology.

Want to take a look at the catalogs? Here are the links.

0034e Catalog
0034ePlus Catalog

Again, give us a call with any questions or pricing information.

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.

To attend the Brendan Hanrahan Family Benefit Luncheon, click here to purchase tickets.

Dear Friend of EMCOR:

On October 19th of this year, EMCOR Services lost a dear friend. Technician Brendan Hanrahan, only 38 years old, passed away from heart complications.

Brendan was born with a heart condition making it difficult for him to get adequate life insurance to cover his family. He leaves behind a wife and two small children.

A benefit luncheon is being held on January 21, 2018 to help raise money in order to help the family outweigh the tragic cost of losing a loved one.

We are writing to ask for your help in donating a raffle prize for this event. Sports Tickets, Gift Cards, Electronics, Tools are all popular items. Anything you can provide to help this young family would be appreciated!

We would ask that you mail or drop off your donation NO LATER THAN JANUARY 18, 2018

EMCOR SERVICES
431 Lexington Drive
Buffalo Grove, IL 60089
(847) 229-7600
ATTN: Brendan Hanrahan Benefit

You can also drop your donation off at our office Monday – Friday 7:00 am – 4:00 pm

PLEASE LET US KNOW IF YOU WILL PARTICIPATE AS SOON AS POSSIBLE

Thank you in advance for your generous donation to this very worthwhile cause!

Warm Regards,

Tim Schilling, Ralph Pfeifer, Chris Witek, Patrick Holly, Ken Boubel, Chris Beller, Don Petty, Kate Limbers, John Warpinski, Ken Kosinski

EMCOR Services Team Mechanical, Inc.
431 Lexington Drive
Buffalo Grove, IL 60089
Office: 847.229.7600