Assuming you have a full sized 240 volt water heater, you connect the bare
to the ground terminal only, and the same thing on the water heater. Your
white and black wires are both hot, you don't have a neutral. The white and
black wires go to the "line" terminals of the time clock, also assuming you
bought a clock with a 240 volt motor. In the event you bought a clock with a
120 volt motor, you need a feeder with a neutral (4 conductors). The "load"
terminals is where you connect the two insulated wires going to the water
heater



"Derek Lawler" wrote in message
...
I am installing Intermatic's "Little Gray Box" at a junction where I
previously had an off/on switch. The three wires from the fuse box
connected up at the switch with the three wires to the heater. The bare
wire
in the center is a "neutral." I am assuming it can go to ground also. In
the timer there is a pole marked A for the neutral wire but there is also
a
green screw that is supposed to be a ground connection.
The question is, (now that I have the line and load wires connected) can I
connect both of these neutral or ground wires to post A and also run a
wire
from there to the ground? I won't turn on the power till I know it is
wired
correctly. The schematic for this is rudimentary and I can't get any info
from the company. Suggestions appreciated and thanked in advance.
Derek