Author Archives: tisdale

What type of protection is required for your HVAC?

To determine what type of protection is required on HVAC equipment we must first look at the application. National Electric Code (NEC®) which is a part of The National Fire Protection Association (NFPA) or also known as NFPA 70 and ANSI/NFPA 70 has definitions for all the types of protection that is used in hazardous [...]

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B-1 Bomber/C.A.S.S. Project

In the 1980’s, the development and deployment of the B-1 bomber was considered a national defense priority. Rockwell Aircraft Division was in charge of getting the aircraft and the necessary ground support systems in place to make the plan workable. The U.S. Army Corp of Engineers (ACE) was charged with developing the ground support equipment [...]

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Packaged Chilling Systems

Factory Manufactured  •  Complete Chilling  Plant  •  Single Lift Factory Design, Manufacture and Testing: The Packaged Chilling System (PCS) is a completely self-contained refrigeration, pumping, control and switchgear, skidded unit with all components pre-piped, wired and requiring only power input and condenser/chilled water connections. The unit is factory fabricated in a module with weight and [...]

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All About Refrigerants

The different type of refrigerants can be confusing when trying to decide which one to use for your application.  National Refrigerants, Inc has a very informative website that explains the different types and the differences between HFCs, HCFSs, and CFCs. There is also a link to a downloadable poster. http://www.refrigerants.com/refrigerants.aspx

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What type of protection is required for your hazardous location?

Explosion Proof Electrical equipment housed in an enclosure that is capable of withstanding an explosion of a specified gas or vapor that may occur within it and of preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within and that operates at [...]

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INDUSTRIAL/PROCESS SYSTEMS

  INDUSTRIAL/PROCESS SYSTEMS Systems may include stand-alone controls or control systems to interface with owner’s network REFRIGERATION Process/Custom Chillers Packaged, Skid Mounted Tank/Pump/ Chiller Systems Condensing Units for Hazardous/Hostile Environments AIR HANDLING SYSTEMS A/C, Ventilation, Pressurization Units. “Components” or “Packages” Gas phase filtration units with pressure controls and alarm systems Indoor/Outdoor Air Handling systems for [...]

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AHR Expo

The AHR Expo is coming up in Dallas,  January 28-30 at the Dallas Convention Center. http://www.ahrexpo.com/ We’re excited to see all the new products and make some new contacts.  Louie Tisdale (Vice President of Operations) and Lisa Fuller will be going to the Expo. Lisa plans to attend the Women in HVACR meet and greet [...]

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