In applications where additional wiring cannot be run to your programmable digital thermostat, the Add-A-Wire accessory can be used to add a wire to the thermostat. The accessory can also be used to fix a broken wire, to make one thermostat work like two, to add cooling to a heat-only system, or to add a common wire to a 4-wire system.
Please Note: the green and yellow wires of the Diode "Y" may not be connected to the R or C terminal of the thermostat. (The function of a diode is to allow current in one direction and to block current in the opposite direction.)
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Includes Yellow, Green, Blue wire splice (directionally sensitive)
- Includes 4 wire nuts
- Wires running from Add-A-Wire accessory are 9" long
- Maximum distance for Add-A-Wire using 18-gauge wire is 100ft
- Makes one wire work like two
- Mounts inside equipment (not for outdoor use)
- For use with 24-volt HVAC systems
Cannot be used as "R" power or "C" common wire
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