
Venstar Acc0410 Add-A-Wire Accessory for 24 VAC Thermostats
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Venstar Acc0410 Add-A-Wire Accessory
In applications where additional wiring cannot be run, the Add-A-Wire accessory can be used to add a wire to the thermostat. The accessory is also used to fix a broken wire, to make one thermostat work like two, add cooling to a heat-only system, or add a common wire to a 4-wire system (the green and yellow wires of the Diode -Y- may not be connected to the R or C terminal of the thermostat).
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