Whirlpool Commercial Dryer Installation Instructions Manual page 19

Connection Options
Power Cord
4-wire receptacle (NEMA Type 14-30R)
3-wire receptacle (NEMA Type 10-30R)
Connecting 4-Wire Connection: Power Supply Cord
IMPORTANT: A 4-wire connection is required for mobile
homes and where local codes do not permit the use of 3-wire
connections.
Standard Power Supply Cord Connectors
Flanged spade connector
Connecting Ground and Neutral Wires
1. Remove center terminal block screw and the ground wire
by removing the external ground connector screw.
2. Connect ground and neutral wire to center terminal block.
ELECTRIC DRYER ELECTRICAL CONNECTIONS
Ring Connector
Direct Wire
4-wire direct
3-wire direct
Connecting Direct Wire Ground
3. Connect ground wire (green or bare) with external ground
connector screw.
Connecting Remaining Wires
4. Connect remaining wires with outer terminal block screws.
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