American Dryer Corp. Gas HSI - Phase 7/FSS AD-78 III User Manual

Page 27

c. 3-Phase (3ø) Wiring Connections (Hookup) - For Reversing Models Only

The electrical connections on ALL 3-phase (3ø) gas model dryers are made into the rear service box

located at the upper left area of the dryer. Electrical connections for electrically heated dryers are

made in the electric oven area located at the upper rear of the dryer.

NOTE: A CIRCUIT SERVICING EACH DRYER MUST BE PROVIDED.

If local codes permit, power to a gas dryer can be made

by the use of a flexible U.L. listed power cord/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.

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 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 contactor, the service box cover must be removed.