WiFi Thermostat, No C Terminal on FurnaceHow do I connect a WiFi thermostat to my furnace's primary control?Installing Honeywell WiFi ThermostatWIFI thermostat no C wireecobee3 Installation - Thermostat Y Terminal (yellow) Wire Connects to C Terminal BoardNew Thermostat installed but compressor comes on immediately0v at DC thermostat terminal in furnaceNeed help with wiring new Thermostat. Original 3 wire to Sensi EmersonOld oil furnace with 2 wire thermostat, installing new wifi and need C wire. How can I wire with my current stack switch?HVAC wiring for wifi thermostat installation (Ecobee) gas furnace + ACConnect Wifi Thermostat to Goodman GMP050-3?
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WiFi Thermostat, No C Terminal on Furnace
How do I connect a WiFi thermostat to my furnace's primary control?Installing Honeywell WiFi ThermostatWIFI thermostat no C wireecobee3 Installation - Thermostat Y Terminal (yellow) Wire Connects to C Terminal BoardNew Thermostat installed but compressor comes on immediately0v at DC thermostat terminal in furnaceNeed help with wiring new Thermostat. Original 3 wire to Sensi EmersonOld oil furnace with 2 wire thermostat, installing new wifi and need C wire. How can I wire with my current stack switch?HVAC wiring for wifi thermostat installation (Ecobee) gas furnace + ACConnect Wifi Thermostat to Goodman GMP050-3?
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Really hope someone can help me with this. I've looked through the other posts and can't find one similar enough to mine to answer. I've got an old gas furnace + AC and i'm installing a Sensi Wifi theromostat. There's only 4 wires and I cannot figure out how to do the G wire to C conversion because my furnace has no terminals. It looks like someone added a 24v transformer at some point and i think i can just tap into that for my new theromostat but i don't want to connect it incorrectly and damage something. I can easily run a new thermostat wire that will have 5 wires, but i'm unsure where to attached that new C wire. Any help would be really appreciated.
hvac
asked Mar 23 at 22:40
Paul Paul
111
add a comment |
Really hope someone can help me with this. I've looked through the other posts and can't find one similar enough to mine to answer. I've got an old gas furnace + AC and i'm installing a Sensi Wifi theromostat. There's only 4 wires and I cannot figure out how to do the G wire to C conversion because my furnace has no terminals. It looks like someone added a 24v transformer at some point and i think i can just tap into that for my new theromostat but i don't want to connect it incorrectly and damage something. I can easily run a new thermostat wire that will have 5 wires, but i'm unsure where to attached that new C wire. Any help would be really appreciated.
hvac
asked Mar 23 at 22:40
Paul Paul
111
add a comment |
Really hope someone can help me with this. I've looked through the other posts and can't find one similar enough to mine to answer. I've got an old gas furnace + AC and i'm installing a Sensi Wifi theromostat. There's only 4 wires and I cannot figure out how to do the G wire to C conversion because my furnace has no terminals. It looks like someone added a 24v transformer at some point and i think i can just tap into that for my new theromostat but i don't want to connect it incorrectly and damage something. I can easily run a new thermostat wire that will have 5 wires, but i'm unsure where to attached that new C wire. Any help would be really appreciated.
hvac
asked Mar 23 at 22:40
Paul Paul
111
Really hope someone can help me with this. I've looked through the other posts and can't find one similar enough to mine to answer. I've got an old gas furnace + AC and i'm installing a Sensi Wifi theromostat. There's only 4 wires and I cannot figure out how to do the G wire to C conversion because my furnace has no terminals. It looks like someone added a 24v transformer at some point and i think i can just tap into that for my new theromostat but i don't want to connect it incorrectly and damage something. I can easily run a new thermostat wire that will have 5 wires, but i'm unsure where to attached that new C wire. Any help would be really appreciated.
hvac
hvac
asked Mar 23 at 22:40
Paul Paul
111
asked Mar 23 at 22:40
Paul Paul
111
asked Mar 23 at 22:40
Paul Paul
111
asked Mar 23 at 22:40
Paul Paul
111
asked Mar 23 at 22:40
Paul Paul
111
111
add a comment |
add a comment |
1 Answer
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Wirenut A is where you should tap C at
Since you have air conditioning, we can pull a little trick here. We start with the yellow Y wire from the thermostat, noting that it is connected to one wire going off to the outdoor unit (condenser) via wirenut E. Since we know that the thermostat is putting 24VAC from R onto Y to call for compressor, we know that the other wire coming back from the outdoor unit must be a C wire to complete the circuit. Following it, we come to wirenut A, which just so happens to be quite a convenient place to make the thermostat C-wire connection at.
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
add a comment |
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1 Answer
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1 Answer
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active
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votes
Wirenut A is where you should tap C at
Since you have air conditioning, we can pull a little trick here. We start with the yellow Y wire from the thermostat, noting that it is connected to one wire going off to the outdoor unit (condenser) via wirenut E. Since we know that the thermostat is putting 24VAC from R onto Y to call for compressor, we know that the other wire coming back from the outdoor unit must be a C wire to complete the circuit. Following it, we come to wirenut A, which just so happens to be quite a convenient place to make the thermostat C-wire connection at.
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
add a comment |
Wirenut A is where you should tap C at
Since you have air conditioning, we can pull a little trick here. We start with the yellow Y wire from the thermostat, noting that it is connected to one wire going off to the outdoor unit (condenser) via wirenut E. Since we know that the thermostat is putting 24VAC from R onto Y to call for compressor, we know that the other wire coming back from the outdoor unit must be a C wire to complete the circuit. Following it, we come to wirenut A, which just so happens to be quite a convenient place to make the thermostat C-wire connection at.
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
add a comment |
Wirenut A is where you should tap C at
Since you have air conditioning, we can pull a little trick here. We start with the yellow Y wire from the thermostat, noting that it is connected to one wire going off to the outdoor unit (condenser) via wirenut E. Since we know that the thermostat is putting 24VAC from R onto Y to call for compressor, we know that the other wire coming back from the outdoor unit must be a C wire to complete the circuit. Following it, we come to wirenut A, which just so happens to be quite a convenient place to make the thermostat C-wire connection at.
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
Wirenut A is where you should tap C at
Since you have air conditioning, we can pull a little trick here. We start with the yellow Y wire from the thermostat, noting that it is connected to one wire going off to the outdoor unit (condenser) via wirenut E. Since we know that the thermostat is putting 24VAC from R onto Y to call for compressor, we know that the other wire coming back from the outdoor unit must be a C wire to complete the circuit. Following it, we come to wirenut A, which just so happens to be quite a convenient place to make the thermostat C-wire connection at.
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
answered Mar 23 at 23:25
ThreePhaseEelThreePhaseEel
34k115199
34k115199
add a comment |
add a comment |
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