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Local 399 Training

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On August 4, 2008, Local 399 opened its new Union Hall and Training Facility to its members.  The building is 48,000 square feet with 13,000 square feet dedicated to training.  There are three classrooms and two labs that are equipped with the most innovative equipment available.  The entire building has wireless capability and also meets several green initiatives that have been established by the City of Chicago.

Local 399 apprentices and journey-level stationary engineers have access to the following trainers:
Control Valve Trainer 
HVAC Lab Industrial Low Temperature Refrigeration Trainer
Air Recirculation Trainer
Reverse Cycle Low-Pressure Trainer
Commercial Refrigeration Trainer
Industrial Low Temperature Refrigeration Trainer with Defrost & Cooling Tower
High Pressure Boiler Trainer with Secondary Loop Heat Exchanger

For more information, visit Local 399 at



1125 17th Street, NW
Washington, DC 20036
202 429-9100

Directions to IUOE


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