6

Electrical Connection

Power Supply Cord
WARNING
Fire Hazard
Use a new UL listed 30 amp power supply cord.
Use a UL listed strain relief.
Disconnect power before making electrical connections.
Connect neutral wire (white or center wire) to center
terminal (silver).
Ground wire (green or bare wire) must be connected to
green ground connector.
Connect remaining 2 supply wires to remaining
2 terminals (gold).
Securely tighten all electrical connections.
Failure to do so can result in death, re, or
electrical shock.
Direct Wire
WARNING
Fire Hazard
Use 10 gauge solid copper wire.
Use a UL listed strain relief.
Disconnect power before making electrical connections.
Connect neutral wire (white or center wire) to center
terminal (silver).
Ground wire (green or bare wire) must be connected to
green ground connector.
Connect remaining 2 supply wires to remaining
2 terminals (gold).
Securely tighten all electrical connections.
Failure to do so can result in death, re, or
electrical shock.

Electrical Connection Options

1. Choose electrical connection type
A
BCD
E
F
2. Remove terminal block cover
Before you start, disconnect power. Remove hold-down screw
(D) and terminal block cover (A).
A. Terminal block cover
B. External ground conductor screw
C. Center, silver-colored terminal block screw
D. Hold-down screw
E. Neutral ground wire
F. Hole below terminal block cover
Power supply cord 4-wire receptacle
(NEMA Type 14-30R): Go to steps 1-2 on
page 6 for power supply cord strain relief:
then steps 3-6 for 4-wire Power Supply
Cord Connection section. Then, go to
Venting Requirements.
3-wire direct connection: Go to steps
1-2 on page 9 for direct wire strain relief:
then steps 3-7 for 3-wire Direct Wire
Connection section. Then go to Venting
Requirements.
4-wire direct connection: Go to steps
1-2 on page 9 for direct wire strain relief:
then steps 3-8 for 4-wire Direct Wire
Connection section. Then go to Venting
Requirements.
Power supply cord 3-wire receptacle
(NEMA Type 10-30R): Go to steps 1-2 on
page 6 for power supply cord strain relief:
then steps 3-5 for 3-wire Power Supply
Cord Connection section.
Then go to Venting Requirements.
NOTE: If local codes do not permit connection of a
cabinet-ground conductor to neutral wire, go to “Optional
3-wire Connection” section. This connection may be
used with either a power supply cord or a direct wire
connection.