Electric Cooktop Replacement

[jrref]

We are replacing our electric cooktop that came with our 2016 home in the Villages with an induction cooktop. Currently our electric cooktop is the drop in type where it fits in a cutout made in the granite.

That said, we are waiting for the installer but I noticed the electric supply coming from the wall is 4-wire 220V, Red, Black, White and Green while the new cooktop is 3-wire 220V, Red Black and Green. The old electric cooktop uses all 4 wires. I want to make sure the installer connects the electric up correctly. We have a 40 Amp breaker which is what the new cooktop calls for. From my research, The white neutral wire from the wall was used in stoves and cooktops that requiered 110V for a clock or some part of the unit. Where my new cooktop runs only on 220VAC. What I expect the installer to do is connect Red to Red, Black to Black and Green to Green and cap off the White Neutral. I don't believe current electric code allows connecting the White neutral to the Green ground wire at the appliance or anywhere else beyond the electrical panel.

Has anyone had this type of replacement done and if so how did they connect the electrical? There is no plug. The cooktop is hard wired to the electrical box in the wall.

BTW, I believe the comparable GE electric cooktop also is 3-wire so the fact that my new cooktop is induction should make no difference.

Thanks in advance.

[villagetinker]

Sounds like your original stove was hard wired, most plug in. In any case what you have stated is correct, cap the white wire. IF your original stove was a plug in, you should call the installer and let them know they will need a different cord set to mate with your socket. I am assuming that you have confirmed the new unit will fit on the area where the old one is installed, cutting granite is not easy.

[photo1902]

Sounds like your original stove was hard wired, most plug in. In any case what you have stated is correct, cap the white wire. IF your original stove was a plug in, you should call the installer and let them know they will need a different cord set to mate with your socket. I am assuming that you have confirmed the new unit will fit on the area where the old one is installed, cutting granite is not easy.

The OP specified a cooktop. Most, if not all, are hardwired.

[jrref]

Sounds like your original stove was hard wired, most plug in. In any case what you have stated is correct, cap the white wire. IF your original stove was a plug in, you should call the installer and let them know they will need a different cord set to mate with your socket. I am assuming that you have confirmed the new unit will fit on the area where the old one is installed, cutting granite is not easy.

Yes I checked the opening in the granite. In my situation the opening is a little larger than I need for the new cooktop so I had to build it out slightly and use a trim kit that you can buy for the size opening I have. The other problem, when the Villages built these homes they didn't laser cut the opening so it's not 100% straight. The lip of the stove top/ trim kit covers these imperfections.

[villagetinker]

The OP specified a cooktop. Most, if not all, are hardwired.

OOPS, senior moment, you are correct, cooktops are typically hardwired, and stoves are plug in.