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3. Electrical Connections
NOTE: A wiring diagram is included with each dryer and is affixed to the panel inside the right
side control cabinet.
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. These electrical connections are made at the
power distribution block located in the left side control cabinet.
Providing local codes permit, power connections to the dryer can be made by the use of a flexible Underwriters
Laboratory listed chord/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 wire(s) enter the
dryer electrical service (relay) box.
NOTE: A CIRCUIT SERVING EACH DRYER MUST BE PROVIDED.
4. Main Grounding
A ground (earth) connections 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 dryer in the dryer at the left side control
cabinet.
For added personal safety, when possible, it is suggested that a separate ground wire (sized per local codes)
be connected from the ground connection of the dryer to a grounded cold water pipe. DO NOT ground to
a gas or hot water pipe. The grounded cold water pipe must have metal to metal connections ALL the way
to 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.