r/whatisit • u/NerdyAutistic • 9h ago
Solved! What is this?
This was installed into our in ceiling heating/air unit over night at my job. It was never been there before and my coworker was panicking and making a fuss about it.
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u/JohnnyGhoul777 9h ago
Its a Mitsubishi ceiling cassette, that sensor lets the HVAC system know if someone is in the room. Its called 3D i-sensor
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u/CharlesPrawnson 9h ago edited 9h ago
Let me Google that for you and your coworker:
The device mounted on the upper-left corner of the ceiling air conditioner unit is a Mitsubishi Electric 3D i-See Sensor(specifically part of the PLFY or PLA series 4-way cassette indoor units). [1]
Functionality & Features
Thermal Imaging: It uses an advanced infrared sensor to detect the exact temperature profile of the room by continuously scanning the floor and walls.
Occupancy Detection: The sensor detects the location, number, and heat signatures of people in the room.
Direct/Indirect Airflow: Using the occupancy data, you can configure the air conditioner via its controller to either direct airflow directly at people for quick cooling/heating, or direct it away from them to prevent uncomfortable drafts.
Energy Efficiency: When the room is unoccupied, the sensor automatically signals the unit to switch to an energy-saving mode or turn off completely, reducing energy consumption.
If you are experiencing issues with room temperature regulation, draft directions, or need assistance configuring this sensor using your remote control, please let me know your thermostat or remote model number!
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u/JackBlackBowserSlaps 8h ago
So it IS a surveillance device….
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u/RUcringe 8h ago
Lol no its for hvac
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u/NerdyAutistic 8h ago
!solved
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u/QueefSeekingMissile 7h ago
Dont pick AI copyslop for post solves. This is a place for humans to interact and connect with other humans who have experience with things other humans want knowledge about.
If you were going to just accept an AI explanation you could have burned up a small lake to get your question answered all on your own.
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u/PantherCityRes 6h ago
“Don’t pick AI copyslop”
That’s not AI. It’s a GIF from the movie Signs.
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u/QueefSeekingMissile 5h ago
Sure right- and it's just YOU prompting OP to stay engaged by asking unsolicited follow up questions that are overly eager to helpful.If you are experiencing issues with room temperature regulation, draft directions, or need assistance configuring this sensor using your remote control, please let me know your thermostat or remote model number!
Sure riiiight- it's just definitely YOU prompting OP to stay engaged by asking unsolicited follow up questions that are overly eager to helpful like a clingy appliance salesman.
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u/tommysteakbone 5h ago
Seems economically unjustified if only used for HVAC fine tuning. Can also be additional recurring revenue streams. Whoever owns the capture theoretically can resell it several times - maybe to energy auditors / researchers who need to fill large datasets, utilities, and surveillance companies can pay a retainer to be able to access it on demand when they're asked for site-specific or local data. Aggregating these data and cross referencing with license plate readers, outside cameras, security systems, facial recognition, and other types of identifiable individual data can be very useful. Finer and finer detail can lead to more individual types of thermal signature and other identifiers. Interesting to follow this as far as one can imagine it.
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u/CertifiedGlizzler 9h ago
Any chance the lights switch on automatically when you enter the room? This looks a lot like the motion detectors my job just put in for its auto light system. No camera in it.
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u/NerdyAutistic 9h ago
Nope, the lights are not automatic and the building is never empty because someone is stationed here 24/7.
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u/JediCarla 9h ago
It could be a motion sensor. It turns off the system when no one is in the room/building (or adjusts the temperature). It helps the company save money on their utility bill.
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u/NerdyAutistic 9h ago
We apparently make our own power and send it back to the grid so i dont know if this is true.
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u/Valuable-Analyst-464 9h ago
Energy conservation in this case would mean that running the system less would allow the company to send more to the grid, to make them more money.
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u/whiteboyfresh2316 9h ago
Tell your coworker that it's for surveillance. It records audio, video, and x-ray scanning to make sure your not stealing pens and Post-It notes out of the supply closet. 😁
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u/CaveCanem234 9h ago
Presence detection? Only thing that makes sense for it seemingly being added directly to the AC unit?
But also, it's a workplace, I'd generally say it's safest to assume anything you do at work is being monitored by someone
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u/No_Arachnid6493 9h ago
I appreciate the paranoia, especially in the era of Flock-you cameras, but it's an infrared sensor.
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u/Clark_W_Griswold-Jr 8h ago
That thing is awfully filthy for one night of service! You might want to be wearing an N95 mask at your work!
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u/Mylabisawesome 8h ago
We have this in our office. We wish we could have it where we get to pick which vent opens..lol.
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u/Alternative_Sun8585 7h ago
Occupancy sensor. Usually for lighting . But can be configured for HVAC as well
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u/Brilliant-Ideal-1101 0m ago
It's a temperature and occupancy sensor for your dispatch centers air conditioner
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u/Forward_Emotion4503 9h ago
it just looks like they did maintenance and one of the buttons/ switches to access the panel got flipped
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u/BudgetPresent2089 9h ago
It's not a fastner because there is only 1. A side shot would show how much it extends, it's hard to decipher in your pictures. I can't tell if it's a ball or not?? It does appear to be some type of sensor and the best place to have a temperature sensor is close to the return grill (the center grill). I'm sure you can zoom in and see if it appears to be something different.
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u/NerdyAutistic 9h ago
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u/Sensitive_Ad3578 8h ago
Because these systems are modular and a Mitsubishi rep likely contacted your building's engineering department telling about an upgrade that would provide more energy efficiency. These types of systems are becoming more and more common to save energy
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u/FlattenInnerTube 7h ago
More efficient? So hotter in the summer and colder in the winter, right?
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u/QueefSeekingMissile 6h ago
Congratulation! Our optimization department has invented and installed technology that will constantly find and keep you at the maximum levels of discomfort that will NOT inhibit your bodily functions necessary for productivity!
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u/CowRepresentative468 5h ago
This is the equivalent of being offended over the movement sensor in my office that turns the lights off when they don’t detect movement for a period of time. I call it the heart attack preventer. If the lights in my office click off, means I’m sitting still for too long.
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u/One_Bit_3839 9h ago
Its a camera of some kind it doesn't look remotely opperated but it is adjustable not sure why its on the AC unit though it doesn't look like any surveillance camera I've ever seen before.
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u/realtorbrittyc 9h ago
Looks like a camera to me
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