System Type
Conventional
- Gas/Oil/Propane Furnace
- Air Conditioner
- Electric Furnace
- Boiler/Radiant
Heat Only
- Gas/Oil/Propane Furnace
- Electric Furnace
- Boiler/Radiant
Cool Only
- Air Conditioner
Heat Pump with Auxiliary and Emergency Heat
Incompatible
Whole Home
- Humidifiers / Dehumidifiers
Communicating/Proprietary System
Line Voltage
Millivolt
Remote Sensor
The Vine Smart (Wi-Fi) Thermostat always requires a c-wire.
The Vine Smart (Wi-Fi) Thermostat always requires a c-wire.
Using an extra, unused wire as a c-wire
Using your thermostat’s g-wire (fan wire) as a c-wire
Installing an Add-a-Wire Kit (These kits can be purchased from another manufacturer and used with Vine.)
If you would like to understand what a c-wire is and learn more about these three options, look at our helpful information on our c-wire page.
Depending on the brand and functionality of your current thermostat, you may find two sets of wire terminal labels when you remove your existing face plate. Many thermostats are designed to control different types of systems, so the terminals you enter within the Vine app during installation should reflect your unique system type.
Common examples of thermostats with two sets of wire terminal labels are shown below. If you have a conventional system, you should follow the “Conventional” terminal labels when entering your current wiring in the Vine app. If you have a heat pump, follow the “Heat Pump” terminal labels when entering your current wiring in the Vine app.
If you’re unsure of your system type, you may need to reference the model number of your outdoor compressor, and/or contact the manufacturer of your outdoor unit. Remember that a conventional A/C unit only provides cooling. While a heat pump is also an outdoor compressor, it provides both cooling and heating. So, if your compressor turns on during the heating season and provides heat, then you have a heat pump. If your only heat source comes from an indoor furnace or boiler system, or if you do not have heat, then you have a conventional A/C unit.
Some thermostats may not clearly label “Conventional” and “Heat Pump” terminals. You may need to consult with the manufacturer of your current thermostat or an HVAC professional before selecting wire terminals in the Vine app.
After confirming your system type, use the Vine app to walk through the installation steps. This includes taking a picture of your old thermostat wiring before removing any wires, just in case troubleshooting is required later. Be sure to select the wire terminal labels that correspond to your system type. Installing wires in the incorrect location can result in the following:
-System runs past your desired set point
-System provides hot air when in the Cool Mode
-System provides cool air when in the Heat Mode
-Both heat and cool run at the same time
-System does not turn on
*A c-wire is required to operate the Vine Touch Smart Thermostat.
**Heat-only, Cool-only and Heat Pump systems require a c-wire to maintain a Wi-Fi connection.
Learn more about the c-wire and what options are available if you do not have one.