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3. Electrical Connections
NOTE: A wire diagram is located in the front electrical control box for connection data.
a. 3-Phase (3ø) Wiring Connections
The only electrical input connections to the dryer are the 3-phase (3ø) power leads (L1, L2, L3, and
sometimes Neutral) and ground. Single-phase (1ø) power for the control circuit is done internally to the
dryer. No single-phase (1ø) input connection is required on a 3-phase (3ø) dryer.
For gas and steam dryers manufactured for operation
at 3-phase (3ø), the electrical connections are made
at the power distribution block located in the service
box at the rear, upper left hand corner of the dryer. To
gain access to the service box and contactor, the service
box cover must be removed.
Providing local codes permit, power to the dryer can be
made by the use of a flexible U.L. listed cord/pigtail (wire
size must conform to the rating of the dryer), or the dryer
can be hard wired directly to the service breaker. In ALL
cases, a strain relief should be used both where the wiring
enters the dryer and the service box.