Replacing an air handler above a water heater

This clip has its original sound from the job, which isn't transcribed here. What it shows:

• 0 to 0. The new air handler arrives boxed on a hand truck, and drop cloths go down inside.
• 0 to 0. The old air handler is opened up in its closet, where it sits on a stand above the water heater, and the old thermostat comes off the wall.
• 0 to 0. A technician measures the grille in the outside wall by the front door.
• 0 to 0. The old unit is disconnected and lifted off its stand. Technicians look over the removed cabinet, which has dark staining at one corner.
• 0 to 0. The wiring is pulled back, the old grille box comes out of the wall opening outside, and the top of the stand is prepared for the new unit.
• 0 to 0. The new air handler goes onto the stand. Technicians measure and bend copper tubing for the refrigerant connections and work on the wiring.
• 0. The new air handler in place, with its filter in.
• 0 to 0. A new grille is fitted in the wall opening outside and edged with painter's tape.
• 0 to 0. A closet with a unit carrying a yellow EnergyGuide label and the electrical disconnect above it, then the new air handler in its closet above the water heater.