Craning a new condenser onto a commercial roof

This clip has music and no narration. What it shows:

• 0 to 0. An outdoor condensing unit on a raised stand on a flat roof.
• 0 to 0. A crane lifts a condensing unit, strapped to its hook, over the edge of the roof.
• 0 to 0. Inside a utility closet: an empty equipment stand above a water heater, where the indoor unit goes.
• 0 to 0. Copper refrigerant connections being brazed, with a heat shield behind them.
• 0 to 0. A digital gauge manifold and a vacuum pump connected to the system.
• 0 to 0. The new condensing unit on its roof stand.
• 0 to 0. The new air handler installed in the closet, above the water heater.