Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Nest and 1950s Arcoliner Furnace
Cloudbrk
Member Posts: 1
Hello all! I am hoping that someone here might be able to help me out.
I have a home with a 1950s Arcoliner Furnace/Boiler and I am wanting to hook up a smart thermostat to it. I purchased a Nest thermostat, but am having trouble getting it to work. The current thermostat has a R and W wire (non stranded) going to it. I hooked those up along with a C wire conversion kit (24v plugged into the wall). Nothing happens at all when I flip the breaker back on.
I followed the thermostat wires back to the control box (pictured below) and see that it is marked 120v. Is this system compatible with Nest or am I in the small percentage of systems that this will not work with. If so, is there a different relay/transformer setup that I can install to make this work?
I have a home with a 1950s Arcoliner Furnace/Boiler and I am wanting to hook up a smart thermostat to it. I purchased a Nest thermostat, but am having trouble getting it to work. The current thermostat has a R and W wire (non stranded) going to it. I hooked those up along with a C wire conversion kit (24v plugged into the wall). Nothing happens at all when I flip the breaker back on.
I followed the thermostat wires back to the control box (pictured below) and see that it is marked 120v. Is this system compatible with Nest or am I in the small percentage of systems that this will not work with. If so, is there a different relay/transformer setup that I can install to make this work?
0
Comments
-
Why is it always a NEST?
3 -
That old relay probably doesn’t have a common terminal available. However, I’d recommend that you ditch the Nest, it’s the worst possible thermostat for a hydronic system.Bob Boan
You can choose to do what you want, but you cannot choose the consequences.0 -
eBay. T87 Honeywell . Silent and reliable.Slant Fin Galaxy GG100(1986) , 2 zone hot water baseboard, T87 Honeywell thermostats.
1 -
-
I'm not familiar with the plug in Common thing.
Try switching R and W at the thermostat.
I don't like the line volt wires coming into the relay without connectors.0 -
Where is the wall wart connected? The nest power connector only shows getting power from the equipment power transformer and doesn't isolate the 2.0
-
Want it to work 100%??
Add a transformer and a relay. See attached. Connect orange & yellow from the new rib relay to the two thermostat terminal's on your old relay T & T0 -
No attachment.EBEBRATT-Ed said:Want it to work 100%?? Add a transformer and a relay. See attached. Connect ORange & Blue from the new rib relay to the two thermostat terminal's on your old relay T & T0 -
It's there now1
Categories
- All Categories
- 86.7K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 56 Biomass
- 423 Carbon Monoxide Awareness
- 104 Chimneys & Flues
- 2K Domestic Hot Water
- 5.6K Gas Heating
- 103 Geothermal
- 159 Indoor-Air Quality
- 3.6K Oil Heating
- 69 Pipe Deterioration
- 946 Plumbing
- 6.2K Radiant Heating
- 385 Solar
- 15.3K Strictly Steam
- 3.4K Thermostats and Controls
- 54 Water Quality
- 43 Industry Classes
- 47 Job Opportunities
- 18 Recall Announcements