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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 model dryers and steam model 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 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
model dryer or steam model 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.