American Dryer Corp. Gas/HSI & Steam ID-120 User Manual

Page 26

3. Electrical Connections

NOTE: A wire diagram is located in the front electrical control box for connection data.

The only electrical input connections to the dryer are the 3-phase (3ø) power leads (L1, L2, and L3),

GROUND, and in the case of 4 wire service, the neutral. Providing local codes permit, power connections

to the dryer can be made by the use of flexible underwriters laboratory listed cord or pigtail (wire size must

conform to rating of the dryer), or the dryer can be hard wired directly to the service breaker. In ALL

cases, a strain relief must be used where the wires enter the dryer electrical service (relay) box.

4. 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

Electrical Code ANSI/NFPA NO. 70-

LATEST EDITION, or in Canada, the

installation must conform to applicable

Canada Standards: 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.

NOTE: A grounding connection (terminal lug) is provided in the dryers electrical service box at rear.

For added personal safety, when possible, it is suggested that a separate ground wire (sized per local code)

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 nonmetallic 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. For proper

operation of the microprocessor controller (computer), an earth (zero) ground is

required.

NOTE: Grounding via metallic electrical conduit (pipe) is not recommended.

These electrical connections are made at the terminal block located in the electric service box at the rear,

upper right hand corner of the dryer. To gain access into this service box, the service cover must be

removed.

NOTE: A CIRCUIT SERVICING EACH DRYER MUST BE PROVIDED.