Engineers, end users, wholesalers, manufacturers and contractors involved in natural refrigeration using ammonia and carbon dioxide will gather, learn and share at the annual IIAR conference in Phoenix on March 3-6. Hosted by the International Institute of Ammonia Refrigeration, the Natural Refrigeration Conference and Expo brings together those involved with natural refrigeration industry technologies, services and products at the Phoenix Convention Center and host hotel, the Sheraton Grand Phoenix.

Opportunities to advance work related to natural refrigeration for industrial refrigeration education abound. On Sunday, IIAR will hold meetings for several committees: international, education, government relations, piping, research, standards, CO2 handbook and marketing. In addition, preregistered attendees can complete code and certificate testing for the IIAR certificates program. After a full morning of essential committee work, IIAR will host a half-day course on energy efficiency in ammonia refrigeration. Topics include an overview of energy management in an industrial ammonia refrigeration system, system-wide energy analyses, power company plans, and key points to creating and managing an energy program as well as tips for operating evaporators and condensers for optimal energy efficiency. Though the registration fee for this session is charged in addition to the regular conference program, each attendee will receive PDH/CEU credits for their participation.

At the core of the four-day program is the technical program. Beginning on Monday, March 4, and continuing through Wednesday, March 6, the technical conference agenda includes peer-reviewed technical paper presentations, experiential workshops and interactive panels. Presentation topics include: an operating cost comparison between transcritical CO2 and ammonia recirculation systems in a cold storage warehouse; a new hot gas defrost system; developing and implementing effective ammonia refrigeration system operating procedures; prediction of void fraction and pressure drops in vertical ammonia risers; avoiding brittle fracture when repressurizing carbon steel CO2 vessels that have lost pressure; utilizing thermal energy storage in the cold chain to save money; personal protective equipment applications for ammonia refrigeration; lessons learned in ammonia refrigeration; predictive CFD modelling of condensation-induced water hammer in two-phase ammonia systems; safe secondary refrigeration fluids; global market trends in refrigeration: low charge NH3 and CO2; optimizing remote PHA; a machinery room ventilation calculation tool; and an update on IIAR standards.

Other events planned during the event include exhibitor-sponsored technomercial presentations and networking opportunities during hosted breakfasts, breaks, lunches and receptions. Throughout the four-day event, the exhibition hall plays host to manufacturers displaying industrial refrigeration system products and services. Exhibitors Vilter Manufacturing, Frick Industrial, Colmac Coil, Bitzer, Mayekawa USA, Officine Mario Dorin Spa, GEA, Evapco, Güntner, Baltimore Aircoil, Danfoss Controls Solutions, Heatcraft Refrigeration Products and MRBraz & Associates will present technomericals on the convention center floor. Also in the expo hall, attendees can see first-hand some of the industrial refrigeration technologies they’ve learned about elsewhere. Each booth will be staffed with engineers experienced with ammonia refrigeration to help attendees learn more about exhibitors’ capabilities.

For more information about the 2019 IIAR Natural Refrigeration Conference, visit Conference and Expo

Ammonia Leak Detection


ATI designs and manufactures a complete line of ammonia gas detectors, both fixed and portable. Additionally, we produce gas detectors for 32 other toxic and combustible gases.

IIAR Booth 1002

Analytical Technology Inc.
6 Iron Bride Drive
Collegeville, PA 19462


Compressor Ammonia Compressor Pack

Bitzer Ammonia Compressor Pack

BITZER’s Ammonia Compressor Pack (ACP) promises high efficiency at full and part load operation with high reliability. The modular design of the ACP combines two or three compressors, a common oil separator, and a frequency inverter to provide a broad range of operation in high, medium or low temp applications.

IIAR Booth 700 & 702



Ammonia and Solest Lubricants


CAMCO is an industry leader in the synthetic lubricants. In addition to our ammonia and Solest lubricants, CAMCO offers lubricants for any refrigeration application. CAMCO also offers a comprehensive range of Industrial Lubricants for process gas, hydrocarbon gas, air compressor, vacuum pumps, hydraulics, gears, chains, turbines, landfill gas, field gas and many NSF H1 and H2 food-grade applications.

IIAR Booth 408

CAMCO Lubricants
Ham Lake, MN 55304


Industrial Refrigeration Contractor


CIMCO is North America’s largest industrial refrigeration contractor:

  • Full-service capabilities
  • Construction
  • Engineering and design
  • Project management
  • Service

Largest field crew of service technicians in the USA:

  • Safety focused
  • Better cost control
  • Adaptable systems
  • Improved energy efficiency
  • Environmentally friendly.

IIAR Booth 506 & 508



Ammonia Leak Detection

Cool Air Incorporated

For more than 35 years, Cool Air has been manufacturing ammonia leak detectors for the industrial refrigeration industries such as food processing plants, cold storage facilities, fish processors, utilities and more, in the USA and around the world. Cool Air leak detectors are reliable, have the longest-lasting sensor, and are the easiest to maintain of any detector on the market today. We also offer technical phone support and custom solutions. Now offering long lasting Electrochemical sensor.

IIAR Booth 407

Cool Air

Gas Detection Brochure


Sensor technology is the heart of gas detection, and Dräger’s advanced sensors are manufactured in Germany. Discover the Dräger portfolio of portable and fixed gas detection systems.

IIAR Booth 824 & 826

Draeger, Inc.



New Low Charge Central System


Our new low charge central system design creates greater safety and security for your employees, greater protection from inventory damage, and greater peace of mind knowing you have installed the highest standard of industrial refrigeration equipment. Discover the new world of industrial refrigeration. Specify Frick.

IIAR Booth 801

Frick Industrial Refrigeration

Compressors for Process Cooling, Ammonia Applications


Howden Roots offers a wide range of compressors for process cooling and ammonia applications. In our Plymouth Meeting office we keep a substantial stock of spare parts and compressors. In addition to our compressor rebuild offering, we have added re-installation, alignment, vibration analysis and replacement commissioning services.

IIAR Booth 207 & 209

Howden Roots LLC


Compressor for Industrial Refrigeration


Mayekawa is an industry leader in the manufacturing of industrial refrigeration compressors and specialty equipment. Known globally for reliability and quality, MYCOM compressors deliver energy efficient, low maintenance and cost-effective solutions.

IIAR Booth 318 & 320

Mayekawa USA, Inc.


Hygienic Air Handlers for Ammonia Refrigeration

Phoenix Air Systems

Phoenix Air Systems manufactures industrial hygienic air handlers to the ammonia refrigeration market for food processing facilities. Part of a facility’s food safety and HAACP plan, hygienic air handlers provide fresh, filtered air, room cooling/pressurization, condensation control, dehumidification, heated clean-up cycle, sequential defrost and integrated Allen Bradley PLC controls.

IIAR Booth 226

Phoenix Air Systems


Custom Engineered Refrigeration Systems

Zero Zone Inc.

Established in 1961, Zero Zone, Inc. is a leading manufacturer of a wide variety of packaged refrigeration systems for industrial and commercial applications. Zero Zone designs and manufactures custom engineered halocarbon, CO2, and ammonia refrigeration systems for cold storage / distribution, ice rinks, pharmaceutical, food processing, and other industrial applications.

IIAR Booth 401

Zero Zone Inc.