American Dryer Corp. Super AD-30 - Manual (Page 23)

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The electrical connections on ALL single-phase (1ø) gas and
steam dryers are made into the rear service box located at the
upper left area of the dryer.
NOTE: On gas and steam dryers, to convert from 208 VAC to 240 VAC (or vice versa), the 24 VAC
transformer wiring must be changed.
2) Electric Dryers ONLY
ALL electrically heated dryers must be connected to the electric supply service shown on the
dryer's data label which is affixed to the back of the control (service) door. The connecting wires
must be properly sized to handle the rated current.
NOTE: Component failure due to improper voltage application will VOID THE WARRANTY.
3. Grounding
A ground (earth) connection must be provided and installed in accordance with state and local codes. In the
absence of these codes, grounding must conform to applicable requirements of the National Electric Code
ANSI/NFPA NO. 70-LATEST EDITION or in CANADA, the Canadian Electrical Codes Parts 1 & 2 CSA
C22.1-1990 or LATEST EDITION. The ground connection may be to a proven earth ground at the location
service panel.
For added personal safety, when possible, it is suggested that a separate ground wire (no. 18 minimum) be
connected from the ground connection of the dryer to a grounded cold water pipe. DO NOT ground to a
gas pipe or hot water pipe. The grounded cold water pipe must have metal to metal connection all the way
to the electrical ground. If there are any non-metallic interruptions, such as, a meter, pump, plastic, rubber, or
other insulating connectors, they must be jumped out with no. 4 copper wire and securely clamped to bare
metal at both ends.
IMPORTANT: For personal safety and proper operation, the dryer must be grounded.
4. Electrical Connections
A wire diagram is located inside the control box for connection data.
a. Single-Phase (1ø) Hookup - for GAS and STEAM DRYERS ONLY