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Honeywell mercury thermostat

Honeywell mercury thermostat

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I found this far back on a shelf in my garage. How do you wire these up?

20190627_110620.jpg 20190626_130402.jpg 20190626_130421.jpg 20190622_223951.jpg

Light Information

Light Information

Manufacturer:Honeywell
Model Reference:Unknown
Electrical
Voltage:Unknown
Current:Unknown
Physical/Production
Fabrication Date:Is this from the 1980s?
Application/Use:Controlling HVAC devices

File information

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Filename:20190626_130421.jpg
Album name:Fluorescent05 / Miscellaneous Electrical Stuff
Keywords:Off-Topic
File Size:174 KB
Date added:Jun 26, 2019
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mdcastle
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Jun 26, 2019 at 12:20 PM Author: mdcastle
You bought a matching base for it (either heat only, heat/fan or heat/cool/fan) which has 2-4 terminals on it, and the part you have snaps into the base.
paintballer22
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Jun 26, 2019 at 12:40 PM Author: paintballer22
My house still has these in use.
lightinglover8902
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Power distributor: CenterPoint Energy. 120 V60Hz


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Jun 26, 2019 at 01:20 PM Author: lightinglover8902
Should this be in the off-topic album? Because, I don't think a thermostat wouldn't control a light...

Save the Cooper OVWs!! Don't them down by crap LED fixtures!!!

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Jun 26, 2019 at 02:34 PM Author: rjluna2
Well, it does have the Mercury bulb switch similar to what I have in my collection posted at Radio Shack's Mercury Bulb Switch

Pretty, please no more Chinese failure.

Fluorescent05
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Jun 26, 2019 at 03:04 PM Author: Fluorescent05
I have used this as a 3 way mercury switch on 6 volts to test it. It was used with a small incandescent lamp. So technically it did switch a light.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

vintagefluorescent
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Jun 26, 2019 at 03:14 PM Author: vintagefluorescent
This appears to be off topic- So this May get deleted by administration,

Here’s what I can tell You about the Honeywell Round one thermostat - They introduced the round one back in the mid to late 1950s, This thermostat won some awards back then - They sold millions of them ,

Here’s what’s missing and what a You will need to complete what You have shown ,

A heat/cool / Fan auto / on sub base - also the top disc shaped like a doughnut 🍩 that snaps onto the top of Youre
The main thermostat You have shown here should have screws to allow You to screw it into the sub base,

Here’s what I don’t like about them - They were extremely sensitive in the cooling cycle and they would short cycle the a/c compressor and there was nothing You could do to prevent that , Furthermore This thermostat offers no anti cycle protection for Youre compressor so if The unit accidentally gets short cycled by You or a power problem due to a thunderstorm You run the risk of cousing harm to youre outside compressor , unless of course You install an anti cycle timer ,at a Youre ac condenser,

If a You love the thermostat I would recommend hanging it up beside the thermostat You are currently using but not install this one on a Youre system for reasons I mentioned,!
fluorescent lover 40
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Lights are awesome! :)


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Jun 26, 2019 at 03:42 PM Author: fluorescent lover 40
It won't get deleted. Just edit the file info.

Cool find! Is it now in your collection?

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
-I'll save any vintage lamp! Smiley

Fluorescent05
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Jun 26, 2019 at 07:31 PM Author: Fluorescent05

It won't get deleted. Just edit the file info.

Cool find! Is it now in your collection?

Yes.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Fluorescent05
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Jun 26, 2019 at 07:32 PM Author: Fluorescent05

It won't get deleted. Just edit the file info.

Cool find! Is it now in your collection?

I changed it to off topic.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Bert
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Jun 26, 2019 at 07:39 PM Author: Bert
I would like to get one for my house. I guess I'll have to find a used or NOS one since they aren't made anymore. At least not one with a mercury switch.
Fluorescent05
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Jun 26, 2019 at 08:04 PM Author: Fluorescent05

My house still has these in use.

Can you post a picture of one?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Fluorescent05
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Jun 26, 2019 at 08:11 PM Author: Fluorescent05

You bought a matching base for it (either heat only, heat/fan or heat/cool/fan) which has 2-4 terminals on it, and the part you have snaps into the base.

The mercury bulb in this one has 3 wires coming out of it. It works like a 3 way switch.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Fluorescent05
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Jun 27, 2019 at 02:13 PM Author: Fluorescent05

This appears to be off topic- So this May get deleted by administration,

Here’s what I can tell You about the Honeywell Round one thermostat - They introduced the round one back in the mid to late 1950s, This thermostat won some awards back then - They sold millions of them ,

Here’s what’s missing and what a You will need to complete what You have shown ,

A heat/cool / Fan auto / on sub base - also the top disc shaped like a doughnut 🍩 that snaps onto the top of Youre
The main thermostat You have shown here should have screws to allow You to screw it into the sub base,

Here’s what I don’t like about them - They were extremely sensitive in the cooling cycle and they would short cycle the a/c compressor and there was nothing You could do to prevent that , Furthermore This thermostat offers no anti cycle protection for Youre compressor so if The unit accidentally gets short cycled by You or a power problem due to a thunderstorm You run the risk of cousing harm to youre outside compressor , unless of course You install an anti cycle timer ,at a Youre ac condenser,

If a You love the thermostat I would recommend hanging it up beside the thermostat You are currently using but not install this one on a Youre system for reasons I mentioned,!

What does it mean to short cycle the compressor? Are there any problems with the heating part of the thermostat?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Fluorescent05
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Jun 27, 2019 at 02:14 PM Author: Fluorescent05
What does the little metal arrow that moves over some wire control?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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120/240VAC @ 60HZ


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Jun 27, 2019 at 05:43 PM Author: LampLover

What does the little metal arrow that moves over some wire control?


As I stated in my other reply

I believe it is called a Heat Anticipator

LED Free Zone!
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Fluorescent05
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Jun 27, 2019 at 08:05 PM Author: Fluorescent05

As I stated in my other reply

I believe it is called a Heat Anticipator

What voltage would these operate at that would cause the metal wire to heat up?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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120/240VAC @ 60HZ


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Jun 28, 2019 at 06:04 AM Author: LampLover
It uses 24VAC just like the rest of the control voltage portion of the HVAC system.

I found a better article that explains the current draw and how the device works and how to set it properly

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Jun 29, 2019 at 06:28 AM Author: Cole D.
I like these round thermostats. This look like an older metal one. The ones I've seen now are all plastic. Plus they make a digital version of these.

Collect vintage incandescent and fluorescent fixtures. Also like HID lighting and streetlights.

Fluorescent05
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Jun 29, 2019 at 06:36 AM Author: Fluorescent05

I like these round thermostats. This look like an older metal one. The ones I've seen now are all plastic. Plus they make a digital version of these.

Does the digital version use the same sub base and round cover?

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Fluorescent05
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Jun 29, 2019 at 06:38 AM Author: Fluorescent05

As I stated in my other reply

I believe it is called a Heat Anticipator

I read those articles on the heat anticipator and it is a pretty cool concept!

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

Cole D.
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Jul 04, 2019 at 09:19 PM Author: Cole D.

Does the digital version use the same sub base and round cover?

I'm not sure.

Collect vintage incandescent and fluorescent fixtures. Also like HID lighting and streetlights.

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Jul 27, 2019 at 10:22 PM Author: SeberHusky
These were banned and made illegal in the 90's due to teenagers and drug addicts breaking into homes and breaking them open to get a mercury high. That's the story I heard. You can still buy these today, not sure if they have a mercury vial in them or it is a substitute, but you can buy them still for $49.99.

I collect exit signs, preferably vintage ones.

I also have a little bit of a thing for light bulbs, too. Of course, hoarding them due to the incandescent bulb ban.

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Jul 27, 2019 at 10:56 PM Author: Fluorescent05

These were banned and made illegal in the 90's due to teenagers and drug addicts breaking into homes and breaking them open to get a mercury high. That's the story I heard. You can still buy these today, not sure if they have a mercury vial in them or it is a substitute, but you can buy them still for $49.99.

I would assume they would be electronic today.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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Jul 27, 2019 at 11:02 PM Author: SeberHusky
I'm not sure. I just seen one in the store and read the box but I couldn't tell. Here's the one I saw: https://www.menards.com/main/heating-cooling/electric-heat/thermostats-freeze-alarms/honeywell-round-heat-cool-thermostat/ct87n1001-e1/p-1444433407919-c-12864.htm?tid=3218340798452150286&ipos=11

I collect exit signs, preferably vintage ones.

I also have a little bit of a thing for light bulbs, too. Of course, hoarding them due to the incandescent bulb ban.

(Signature last updated October 27, 2011)

Fluorescent05
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Jul 27, 2019 at 11:52 PM Author: Fluorescent05
The one in the image looks like one with a magnetic snap switch in it.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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Jul 27, 2019 at 11:53 PM Author: SeberHusky
Oh ok.

I collect exit signs, preferably vintage ones.

I also have a little bit of a thing for light bulbs, too. Of course, hoarding them due to the incandescent bulb ban.

(Signature last updated October 27, 2011)

Fluorescent05
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Jul 28, 2019 at 06:50 AM Author: Fluorescent05

Oh ok.

The magnetic snap switch thermostats would use 2 magnets with contacts next to them that a switch at the end of the bimetallic strip would bump into each time the temperature was low or high enough to overcome the other magnets. It would bounce back and forth fast. The switch at the end of the bimetallic strip was just a metal contact with the common wire connected to it. Next to the magnets there were 2 contacts (1 per magnet) that would connect to air conditioning and heat request wires.

Don't be fooLED, T8 IS the worst thing to do to a magnetic T12 fixture.

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