I've purchased a Broan NuTone fan to replace the old one in my bathroom. The fan itself has a white wire, a black wire and a green wire. The wiring in my house consists of a black wire, a white wire, a green wire and a bare copper ground.
According to the instructions, I am to attach the green wire from the fan to either a green wire from the supply or to the ground. Since the existing wiring includes both, should I connect both the green and the bare copper to the green wire attached to the fan?