Jay Voissem, P.E.
Jay has over seven years experience with industrial refrigeration systems and five years of training experience. He has knowledge and experience with many aspects of industrial refrigeration systems: design, controls, mechanical, electrical, energy reduction, process safety management, codes, auditing, servicing, and training. Specific examples include designing CO2-Ammonia cascade systems, troubleshooting and servicing operating ammonia systems, retrofitting electro-mechanical controls to PLC control systems, performing 5-year mechanical integrity inspections with NDT, and successfully preparing students for RETA certification exams.
Professional Engineer, Licensed
BS in Mechanical Engineering, University of Virginia
RETA Certified
Hazmat Technician
Chris Shackelford
Chris has over 25 years of experience with industrial ammonia refrigeration systems and 20 years of training experience. He has serviced and maintained refrigeration systems for many Fortune 500 companies, as well as power plants and chemical plants, performed compressor shaft seal replacements, motor and engine to compressor re-alignments, and complete reciprocating compressor rebuilds.
RETA Certified
RSES Certified
Frick Factor Commissioning
Refrigerant Transition and Recovery Universal Certification
Certified Industrial Refrigeration Operator
Refrigeration Service Engineers Society – Heat Pump
Hazmat Technician
Frank Boykin
Frank has over 20 years experience in industrial electro-mechanical repairs and 15 years of training experience. He understands total ammonia operations and has rebuilt, installed, and maintained a wide variety of ammonia refrigeration compressors, as well as refrigeration equipment and system repairs.
RETA Certified
Frick Factor Commissioning
Universal HVAC Certified
Hazmat Technician
Ken Johnson
Ken has 30 years of experience in the industrial ammonia refrigeration field and 28 years of training experience. He has worked on the manufacturing, service, contracting, and engineering aspects of the industry. He is a member of RETA and has given presentations at the IIAR. He is currently involved in system design and PSM/RMP program development.
Hazmat Technician
Robert Kniss
Robert has over 25 years experience designing the electrical systems for commercial air-conditioning and industrial refrigeration systems equipment and has over 20 years of training experience. He graduated from the University of Virginia with a degree in Electrical Engineering. He has worked extensively with power and control design, programming, documentation, and training. He has designed the power and control systems and been an integral part of the start-up team for many jobs. The control systems include PLC programming for Allen-Bradley and Automation Direct, and HMI programming using Wonderware software. The power systems include Variable Frequency Drives with control through digital communication to the PLC. Robert has also been involved with system documentation and training of service technicians and customers.
Ted Knoll
Ted has over 5 years of training experience and earned his B.S. degree in Industrial Technology from Tennessee Technological University. Ted has over 20 years experience in programming/startup/troubleshooting of various brands of PLC's including Allen Bradley (SLC 500/Compact Logix/MicroLogix/PLC-5/PLC-2), Automation Direct (DL405/DL05/DL06/P3000), Siemens S7, Texas Instruments 505; HMI Graphic systems including Wonderware Intouch, AB RSView32 and Siemens Protool; Variable Frequency Drives including ABB, Allen-Bradley, Square D. Before joining IRTC, Ted worked in the areas of Industrial Refrigeration/Manufacturing, Manufacturing Engineering, Information Technology, Automation Product Technical Support, and Automation Systems Integration.