- PRODUCTS - SmartZone
- Common Wire Adapter Kit
Common Wire Adapter Kit


Common Wire Adapter Kit
Add a wire to connect your thermostat to SmartZone or your equipment.
Most modern (especially WiFi) thermostats require a common wire to be connected but it is often difficult to run a new wire to the thermostat location.
If you only have 4 wires but need 5 or if you have 5 wires but need 6, this common wire “ADDER” will do the trick.
This “COMMON WIRE ADDER” is universally compatible and will work with any thermostat and any equipment/zoning system.
Add a wire to connect your thermostat to SmartZone or your equipment.
Most modern (especially WiFi) thermostats require a common wire to be connected but it is often difficult to run a new wire to the thermostat location.
If you only have 4 wires but need 5 or if you have 5 wires but need 6, this common wire “ADDER” will do the trick.
This “COMMON WIRE ADDER” is universally compatible and will work with any thermostat and any equipment/zoning system.
Most modern thermostats require a “common wire” but a lot of homes do not have enough conductors in the thermostat wire bundle. The COMMON WIRE ADAPTER KIT solves this problem by turning 3 wires into 4, 4 wires into 5 or 5 wires into 6. So, if you are upgrading to a modern thermostat but are short one wire, this is the answer.
What pairs perfectly with SmartZone?
Vine WiFi thermostats! Take zoning to the next level with these beautiful and extremely reliable thermostats!