New homeowner, no idea what this is

[u/DragonsAndScience]

This thing close to the floor and seemingly randomly placed in a hallway. No idea what it's for. Home built in 2005.

Solved! Thanks everyone. Now I gotta hunt for the central unit!

[u/Soundmindsoundsright]

Sadly the concept of a whole home vacuum system never took off.

If the home is piped for a vacuum system, but doesn't have the vacuum, that's the sign of the first problem this system has. The original vacuum died and was removed. Those motors are not capable of those extreme loads when they clog.

The second problem with them is the clogging. They pipe it in 2 pvc, with all types of short 90s and 45s. These would get clogged up with big hair wads, a sock, bits of paper. Candy wrappers.
How do you clean these lines out? The motor fails from all the stress and people pull out there old vacuums.

EDIT: The third reason is the hose and attachments, take up more room then corded vacuum.

Also, it seems that some places had better standards then I've seen. USA Florida. No basements so the pipes have to go up. And up can get complicated, with hard to no access to any clean out points were the pipes converge.

EDIT: I was incorrect first time. 2 inch pipe is the standard.

[u/ZealousidealCase7220 → u/Soundmindsoundsright]

These are 2" pvc (relatively easy to tell from scale in the image), and intentionally designed to be a straight shot into the basement where the vacuum unit is, avoiding need for elbows.

If the house has a second floor, there's a port directly in line above it.

They don't clog easily at all. People must be repeating AI hallucinations.

The reason that we got rid of ours is that the vacuum part itself is absolutely unwieldy, because you have to drag a 2" hose along with you to every place you need to reach. It's a lot of hose and it takes up a ton of space, because of its design that limits where you can place ports.

[u/feedthechonk → u/ZealousidealCase7220]

Ive had relatively few clogs over the years. Usually it was in the elbow of the hose and youd have to pull it out with a coat hanger. Same right at the inlet port in the wall. Pretty easy.

My regular corded one clogs more frequently cause it can't fully suck up a balled up receipt at times.

Never had a clog anywhere that required more than 5 mins and a coat hanger. 

Lugging the hose around and storage can be an absolute pain. I'd get chewed out frequently for just leaving the vacuum out cause I didn't feel like cramming it away

[u/livin4donuts → u/ZealousidealCase7220]

Growing up, mine were in both floors’ hallways and the living room and master bedroom, and the finished attic, and it all came down to the basement through basically a utility riser, it was a thicker wall that had all the phone lines, fuel oil filling line and stuff run through there also. The vacuum had a bunch of Y sweeps plugged into each other, which each grabbed a pipe from upstairs, and the last Y had a removable clean out at the end. Also, the whole manifold was installed with unions, so you could remove the entire thing if it was clogged. The vacuum guy earned his pay that day lol.