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5. 3-Phase (3ø) Wiring Connections/Hookup
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.
IMPORTANT: A SEPARATE CIRCUIT SERVICING EACH DRYER MUST BE
PROVIDED.
a. Gas and Steam Models ONLY
1) 3-Phase (3ø) Wiring Connections/Hookup
For gas and steam models 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 corner of the dryer. The
ground connection is made to the copper lug also
provided in this box. To gain access to the service box
and contactor, the service box cover must be removed.
Providing local codes permit, power to a gas or steam
model can be made by the use of a flexible U.L. listed
power cord or pigtail (wire size must conform to rating
of dryer), or the dryer can be hard wired directly to
the service breaker panel. In ALL cases, a strain relief
must be installed where the wiring enters the dryer
and service box area.
b. Electric Models ONLY – 3-Phase (3ø) Hookup
The electrical input connection is made into the electric oven contactor located at the upper rear of the
dryer. Input connection wiring must be sized properly to handle the dryer's current draw. This
information is printed on the dryer's data label.
113066 - 17
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