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Anyone know what this control is?
KCA_2
Member Posts: 308
It's working on an 80 or so year old hot water boiler..........
24V ..... likely a relay but?????? Lol
It actually has tubes, like the old TV's. Did..... comes with a cover for the tubes, likely so they don't get hit......
I've looked on line and find that it's called an outdoor reset control, but no pictures and the ones that do post a picture, are wrong...... not the same control..... non-the-less, it could be a 1954 outdoor reset..... one of the first... lol
:-)) KCA
24V ..... likely a relay but?????? Lol
It actually has tubes, like the old TV's. Did..... comes with a cover for the tubes, likely so they don't get hit......
I've looked on line and find that it's called an outdoor reset control, but no pictures and the ones that do post a picture, are wrong...... not the same control..... non-the-less, it could be a 1954 outdoor reset..... one of the first... lol
:-)) KCA
:-) Ken
1
Comments
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From what I've found out it is a low voltage 3 wire thermostat controller from around 1960. Should have a round thermostat to go with it.0
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24 volt?
I find that a bit hard to believe with tubes. Typically tubes need a DC plate voltage of anywhere from 100V and up, I've worked on amplifiers running on 650VDC.
I can see the heaters are good on the tube on the right, but can't tell about the one on the left. Is it working?
Perhaps @Steamhead has seen something like this?Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0 -
Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0
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That's a pretty good likeness..... yeah.... that could be it!:-) Ken0
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Yeah the 24v thermostat controller info I posted came from justanswer.com . Seems a fellow had one and was asking a tech about it.
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Here is an old partial listing from Ebay. Also a link to thermostat.
You are bidding on a vintage, Honeywell electronic "Moduflow" temperature control system with the "Golden Circle" day/night wall thermostat. There are supposed to be 3 parts to this system: the wall clock, the wall thermostat and the exterior thermometer. (the outside thermometer that is on the outside of the house has been painted over so it is NOT included in this bid.) Your bid will come with the 2 pieces I have.)
http://screencast.com/t/f6vMyyuE4h0 -
Here is the inside of the Thermostat And larger photo with cover. Notice there is only 2 wires.
http://screencast.com/t/pKPb346WZ6TF
http://screencast.com/t/2FNg186t70 -
vacuum tubes were common in MH and Fire-eye burner controls thru the 60's.
There was an error rendering this rich post.
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That stuff is awsome...Everyone laugh's over the old stuff I collect in my garage but it show's how things developed over time...0
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