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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 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 contactor, the
service box cover must be removed.
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