Receive, store, deliver and set forty (40) ArctiChill® packaged chillers on rooftop steel dunnage. The design of a gantry, made up of one standard and one hydraulic leg, to lift and set chiller modules from the roof level to steel dunnage was the answer to this rigging challenge. Using chain falls and beam trolleys to lift and translate the units onto the steel allowed our riggers to deliver this chilling system to the roof of a telephone company building.