Motors & Drives

New technologies, VFD's, and retrofits play a big part here, with potential for big savings.

ARTICLES

Motor Selection HVAC Design

Who actually specified that motor? Did they keep the entire system in mind or were they simply specifying one component at a time? And will that spec require over-speeding the motor?
March 1, 2014
Often, an HVAC system is designed by the selection of individual components and not by a whole-system approach
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VFD Serial Communications: Which Points Should I Use And Why?

The available LEED credits and most obvious energy-saving possibilities are one thing. The potential for a ripple effect of system-wide savings by deploying VFDs as part of better overall monitoring are another.
January 2, 2014
Variable frequency drives (VFDs) have become omnipresent in the building automation world.
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Bridging Schools And Eras with HVAC

With literal and figurative tight spaces handled, now new boilers, hydronics, pumping systems, and DDC all work together to impress and serve.
February 27, 2013
In today’s world, so-called “high-performance, sustainable” facilities are a dime a dozen. But many of these buildings rely on overly complex mechanical systems to carry out their mission.
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Good Practices For Mechanical Repair Of Electric Motors

January 2, 2013

Motor problem documentation, grease compatability, fits for bearings … these are just three aspects covered in ANSI/EASA AR100. Whether you maintain your own motors or simply own them and require proper maintenance, understanding the concerns, resources, and recommendations of AR100 will encourage proper repairs and longer service life.


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Critical Care: IAQ For Isolation

January 2, 2013

There’s nothing simple about the design, construction, and maintenance of a hospital’s protective environment and airborne infection isolation spaces. However, if you pay careful attention to recommended ventilation and filtration strategies for the rooms and adjacent areas, you can handle the pressure (so to speak) and deliver a healing environment.


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Motors & Drives Rebate Update

August 27, 2012
How often do you get paid to save money through improved system performance? Utilities have their own reasons for seeing you lower your bills, so don’t get started on that next retrofit until you’re sure your organization isn’t leaving money on the table.
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Motors For Use With VFDs

January 9, 2012
The questions can pile up quickly when it’s time to specify a motor to pair with a variable drive. The information available sometimes leaves one wondering just as much about the information that is unavailable. Will a decision hold up not only in the actual application but also possibly in court? Wade into compatibility, spec terms, partial loads, and more as we try to get this motor running.
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Calculating Life-Cycle Cost

Detailed calculations can unearth hidden savings.
September 6, 2011
Whether at work or in our personal lives, we all try to be smart shoppers. We’ll go that extra mile to save a few percent on upfront purchase costs but every so often miss the big picture by not taking total cost of ownership (TCO) into account.
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Case In Point

Financial exchange trades up to modular fan system

September 6, 2011
Located in this city’s famous Loop commercial center, the 600-foot-tall Chicago Board of Trade Building (CBOT) houses the world’s oldest futures and options exchange. Until recently, the building also housed a pair of aging built-up systems that were beginning to worry management.
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Building Automation: Part 1: Proper Selection Of VFDS And BAS

August 1, 2011
Let drives steer you toward better performance, with these caveats.
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EVENTS

ISH Shanghai & CIHE 2014

9/3/14
Shanghai New International Expo Centre
2345 Longyang Road
Shanghai
China
Contact: John Jiang
Backed by the success of ISH China & CIHE – Asia’s leading HVAC and sanitation event, ISH Shanghai & CIHE continues to play an important role in introducing individual heating solutions to China’s East and Central regions. Read More

2015 AHR EXPO

1/26/15
McCormick Place Convention Center
Chicago, IL
United States
The world’s largest trade show exclusively for the heating, ventilation, air conditioning and refrigeration industry Read More

Multimedia

Videos

Image Galleries

ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
3/25/14 2:00 pm EST

Improving Cooling and PUE in Existing Data Centers

On-Demand This webinar will provide cost-effective practical tips and feasible retrofit solutions that can be implemented in operational data centers to address some cooling issues and improve energy efficiency.

Engineered Systems Magazine

ES July 2014 cover

2014 July

Check out the July 2014 issue of Engineered Systems, with features on chiller retrofits in health care facilities, building automation, and much more!

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Data Collection

Following Paul Ehrlich's BAS column, what describes your team's performance with data collection, normalization/storage, and analytics/reporting?
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THE ENGINEERED SYSTEMS STORE

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The Green Energy Management Book

Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

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Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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