Refined and Smart WiFi Thermostat with Touchscreen Color Display, Compatible with Alexa and Google Assistant

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What If There Is No C-Wire?

If you do not have a C-wire, you can try the following steps, but it is crucial to confirm with your HVAC manufacturer or an electric engineer first.

1. Furnace Part:
2. Connect the G-wire to the C terminal.

3. Use a black jumper wire to connect the G and Y terminals (if you need heat, connect it to the W terminal; otherwise, connect it to the Y terminal).

4. Thermostat Part:

5. Connect the G-wire to the C terminal on the wall plate.
6. The G terminal on the wall plate will remain blank.

What is a C-Wire?

A C-wire, also known as a common wire or a "continuous wire," is an electrical wire that provides a constant source of power to a thermostat or other HVAC components.

TJ560 WiFi Smart Thermostat vs. TJ550 WiFi Smart Thermostat

Product TJ560 WiFi Smart Thermostat TJ550 WiFi Smart Thermostat Customer Reviews 3.3 out of 5 stars (82) 3.9 out of 5 stars (123) Price $93.73 $69.99 Screen Size 4" 2.8" Screen Operation Touchscreen 3 Touch Buttons From the brand Vine Programmable Thermostat Vine Programmable Thermostat

【Wide Compatibility】 These Vine smart thermostats are compatible with approximately 90% of HVAC systems, including Conventional (2H/2C), Heat Pump (4H/2C), and various heating sources (natural gas, electric, hot water, gas fireplaces, oil). All system types require a common wire (C-wire) for proper operation.

【Quick Install】 The Vine smart thermostats can be installed easily in 20 minutes or less, with step-by-step online guides and instructional videos to assist you.

【Remotely Control & Voice Control】 You can control and monitor the WiFi thermostats from anywhere using the Vine Thermostat App or Smart Life App. They are also compatible with Alexa and Google Home for hands-free voice control.

【Live Smart & Energy Saving】 The thermostats feature 7-day programmable schedules with Auto Home/Away mode, automatically adjusting the room temperature to maintain comfort and help you save on HVAC expenses. They are ENERGY STAR certified.

【Multi Practical Functions】 In addition to temperature alerts and filter change reminders, the Vine programmable thermostats also offer automatic time/date synchronization and child lock functionality, ensuring comfort and peace of mind.

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