"Frank Boettcher" wrote in message
...


four wire hookup calls for hooking up black, white (nuetral) and red
on the terminal block and *removing* a bonding strap from the ground
screw to the nuetral terminal on the ground, then attaching the ground
wire to the now chassis only ground screw.

Three wire hook up calls for black, white (nuetral) and red, no ground
wire and leaving the bonding strap in place.

I'm going to assume that the former is better despite the fact there
is no separate nuetral and ground returning to the box, they are at
least separate leaving the appliance.


The only time it's "better" to have a neutral is when the appliance relies
on a 110V leg for such things as timers, etc. Returning back to the box
separately is meaningless. You are equally safe, equally beneficial,
equally proper by using the three wire configuration as depicted in the
second example.

--

-Mike-