Inside a Rooftop Unit | What Every Component Does and Why It Matters

Added: 2026-05-16

[00:00:02]So this is a typical RTU here.

[00:00:04]This is what they call an outside air intake.

[00:00:07]So we'll read this and we'll set it to the engineer specs. He provides those.

[00:00:11]Um this down here is basically a relief.

[00:00:14]Um when the pressure within the ductwork gets too high, those dampers will blow open and relieve the pressure within the ductwork. That usually only happens if this were too high.

[00:00:25]Inside this compartment here, um they have the air filters. So any of the air that gets drawn in from the building, which is called return air, or the outside air that comes in, will go through the filters.

[00:00:36]There's a heating coil here.

[00:00:38]Um then it blows into the fan that's located here and then back down into the building.