In this Mercury GSE training video, Station Manager Frederick Wegener walks through the setup, operation, and safety features of the TLD ACU-804, a powerful mobile aircraft air conditioning unit used for pre-conditioned air delivery.Highlights include startup and shutdown procedures, hose handling tips, temperature control settings, and key safety checks to ensure proper use. It's a must-watch for service, maintenance, and ramp teams working with A/C support units.Explore more equipment training videos on our YouTube channel or visit mercurygse.com