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Add-A-Wire For Onelink Wi-Fi Thermostats

The Add-A-Wire accessory is a device that allows the addition of a wire to help independent fan control regain functionality, even in a four-wire system. AAW-311 is compatible with the Onelink Wi-Fi Thermostat Models THERM-500 and THERM-500CP1.

Can be used to:
  • Add a wire to a thermostat when additional wiring cannot be run.
  • Fix a broken wire.
  • Combine two signals onto one wire.
  • Add cooling to a 3 wire heat-only system.
  • Add a common wire to a four wire system.
  • Accommodate a thermostat that requires five wires by using the Add-A-Wire accessory with four existing wires.
  • Add cooling to a heat-only system by using the Add-A-Wire accessory with three existing wires.
  • Accommodate a single-stage heat pump by using the Add-A-Wire accessory with four existing wires.
  • 4 existing wires with Add-A-Wire to accommodate a thermostat that requires 5 wires.
  • 4 existing wires with Add-A-Wire to accommodate a single stage heat pump.
Product Specs
ONELINK by First Alert
Product Manuals

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AAW-311 customer reviews

Overall Rating

2 Reviews
2 customers recommend this product
Onelink Add-A-Wire For Wi-Fi Thermostat Models THERM-500 and THERM-500CP1 Reviews
James Sutera
June 22, 2018
Verified Purchase
Great product

Saved me the trouble of running wires through the wall.

Alex Liberman
March 27, 2018
Verified Purchase
Helped to make one link thermostat working

Perfect product -easy to follow instructions

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