American Dryer Corp. AD-60 - Manual (Page 25)

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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 CIRCUIT SERVICING EACH DRYER MUST BE PROVIDED.
a. Gas Models and Steam Models Only
1) 3-Phase (3ø) Wiring Connections/Hookup
For gas dryers 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. 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
dryer or steam dryer 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.