What is the proper procedure for the four-wire electrical connection?

For a four-wire connection (preferred method): Connect the green ground wire from the oven to the green (or bare) ground wire in the junction box. Connect the red wire from the oven to the red wire in the junction box. Connect the black wire from the oven to the black wire in the junction box. Connect the white wire from the oven to the white (or gray) neutral wire in the junction box. Use copper wire ONLY and do not shorten the flexible conduit.