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3. Electrical Connections
NOTE:
A wiring diagram is included with each dryer and is located in the blueprint pocket inside the
left side control cabinet.
The main 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 base front electrical enclosure.
If the dryer has an optional sprinkler circuit then a separate single-phase (1ø) source
must be
supplied to
the sprinkler circuit at the name plate voltage. These connections are made at the power distribution block
located in the base front electrical enclosure.
The main electrical (3-phase [3ø]) connections (L1, L2, and L3) and the optional (single-phase [1])
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. In
ALL
cases, a strain relief
must be
used where the wire(s) enter
the dryer electrical service (relay) box.
NOTE: A CIRCUIT SERVICING EACH DRYER
MUST BE
PROVIDED.
4. Main 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 dryer in the Base Electrical Junction
Box.
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 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
.
Summary of Contents for AD-310
Page 11: ...7 310 NON TILT GAS MODEL B DIMENSIONS AND COMPONENT LOCATION ...
Page 12: ...8 310 NON TILT STEAM MODEL ...
Page 14: ...10 1 Reassembly Instructions For Gas Dryer Shipped In Two 2 Pieces ...
Page 16: ...12 2 Reassembly Instructions For Steam Dryer Shipped In Two 2 Pieces ...
Page 22: ...18 ...
Page 23: ...19 ...
Page 24: ...20 ...
Page 64: ...60 B I O BOARD INPUT AND OUTPUT L E D INDICATORS ...
Page 80: ...76 ...