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HVAC Concepts (HVACC)
Controls Contractor, System Integrator, and Manufacturer
  • HVACC has been in business over 19 years -- concentrating on controlling and monitoring facilities throughout the Washington, DC Metropolitan area.
  • HVACC identified the change in the control industry from proprietary to interoperable systems and has made substantial investments in understanding, integrating and supporting LonWorks based systems.
  • HVACC has maintained and supported all of its installed systems. Over 99% of all systems ever installed in the company's 19 year history are still running at 100% capacity.
  • HVACC operates a 24-Hour Monitoring and Service Center to handle alarm functions and customer service needs.
  • HVACC can select, install, integrate, and support LonWorks based products from hundreds of manufacturers including products from leading national controls companies. This enables HVACC to select the BEST product available for the application.
  • HVACC is an Authorized Tridium System Integrator and is experienced in presenting LonWorks, Bacnet, Modbus, and several proprietary control networks via the web with the Tridium JACE Controllers.
  • HVACC is committed to continue developing its web site and web services to provide easy access to: (1) support data (control drawings, data sheets), (2) site data (alarm information, service call tracking, multiple site reports, utility reports), and (3) software and site specific file updates.

Category: HVACC

The news items published under this category are as follows.

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 HVACC: Multi-Compressor Turbocor Retrofit Controller
Friday, June 16, 2006 - 02:50 AM

HVACC / Company Local control and display for Turbocor retrofit of 270 ton Carrier 23XL Screw Chiller. Tridium JACE-2 Controller running Niagara AX using hardwired I/O, Modbus for full status reporting from compressors, BacNet/IP for integrating data with building automation system. A HVAC Concepts, Inc. Field Display directly connected to the JACE-2 via its second Ethernet port is used for a local display. The chiller controller provides a full featured sequence to properly run and manage a centrifugal chiller and associated equipment.

Why a Turbocor Retrofit? Efficiency is of utmost importance in today’s world of escalating utility costs and chillers are by far the biggest energy consumers in the building. However, replacing the chiller is not always the best option, especially when the mechanical equipment is difficult to reach with a crane or is below grade. The largest chiller efficiency gains are accomplished through compressor technologies and intelligent digital control. Retrofitting an existing chiller with Turbocor compressors can often show the best life-cycle return on investment.

Note: The Turbocor compressors are amazing. With only pumping background noise going from off to full load (close to 300 tons) there is no outright cues that the compressor is running – no noise, no vibration, nothing. If you’re not looking at readings telling you the compressor is running you wouldn’t believe it. Wow.

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 HVACC: Microsoft "Click to Enable" Update Fix
Friday, April 21, 2006 - 04:56 PM

Tridium Microsoft recently pushed an update which causes an annoying "click to allow this active x control" to happen with most current active x controls. Including the microcoft and sun jvms. They have since published a link to fix (undo their patch) this issue.

Click Here for Microsoft KB 917425

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 HVACC: 2006 Niagara Summit
Friday, September 16, 2005 - 01:52 AM


The Niagara Summit is an open conference event focusing on the Niagara Framework. It brings together integrators, end-users, consultants, manufacturers, developers and resellers--- the Niagara Community--- to share experiences, get in-depth education, enhance their skills and hear what the future holds from leading industry experts.

General Sessions, keynote speakers and comprehensive workshops will focus on educating attendees on the latest developments in creating solutions that integrates today’s diverse systems and devices into a unified platform enabling distributed, real-time communications to machines and between machines.

No other event assembles such an extensive array of practitioners using the Niagara Framework. End-users, integrators, manufacturers, consultants and developers will have the quality networking time to discuss needs, real world applications and best practices. Take this opportunity to meet with the top business and technical decision makers working with the Niagara Framework.

2006 Niagara Summit
Saddlebrook Resort / Tampa, FL

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 HVACC: Employment: BAS/DDC Controls Mechanic - Technician
Tuesday, July 27, 2004 - 11:19 PM

HVACC / Company Join our team installing and servicing state of the art Web-enabled systems using the latest open systems technology and legacy integrations from Tridium, Siebe, Honeywell, and many others.

Top pay and benefits. E-mail Kevin Perdue, President (

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HVAC Concepts, LLC / 5123 Pegasus Court - Suite T / Frederick, MD 21704 / (301) 670-0044
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