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.
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