7
Three Wire Connection with External Ground
Conduit to cooktop
Incoming power
Wire nut,
3 places
Junction
box
Separate 10 AWG
wire minimum
Clamp wire tightly to
cold water pipe
Three Wire Electrical Connection
See diagram on right.
Separate the wires coming out of the appliance conduit.
1.
Connect the black wire from the appliance conduit to
2.
the black (L1) supply wire in the junction box.
Connect the red wire from the appliance conduit to the
3.
red (L2) supply wire in the junction box.
Connect the green wire from the appliance conduit to
4.
the green (ground) wire in the junction box.
Installation Instructions
Incoming power
Wire nut,
3 places
Junction
box
Conduit to cooktop
Three Wire Connection
Three Wire Electrical Connection with
External Ground
WARNING
Do not ground the appliance to a gas supply pipe or
•
hot water pipe.
If connecting the ground wire to a grounded cold water
•
pipe, connect it using a separate copper grounding
wire (No. 10 minimum) and a clamp with an external
grounding screw. The grounded cold water pipe must
have metal continuity to electrical ground and must not
be interrupted by insulating materials. Any insulating
materials must be jumped with a minimum 4 AWG wire
to establish continuity to ground. See diagram below
right.
NOTE
If the junction box has been properly grounded by a
licensed electrician, the green (ground) wire from the
appliance conduit may be connected to the junction box
using a loop terminal.
See diagrams on right.
Separate the wires coming out of the
1.
appliance conduit.
Connect the black wire from the appliance conduit to
2.
the black (L1) supply wire in the junction box.
Connect the red wire from the appliance conduit to the
3.
red (L2) supply wire in the junction box.
Connect the green wire from the appliance conduit to
4.
a
grounded cold water pipe as shown. Jumper any insu-
lating materials as shown with a length of No. 4 copper
wire. Securely clamp the wire to bare metal at both
ends.
Clamps
Bare metal
Insulating device
4 AWG wire
(minimum)
Insulated Pipe Jumper
