Maytag MDE28PDCZW Installation Instructions Manual page 8

Electrical Connection
To properly install your dryer, you must determine the type of
electrical connection you will be using and follow the instructions
provided for it here.
This dryer is manufactured ready to install with a 3-wire
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electrical supply connection. The neutral ground conductor is
permanently connected to the neutral conductor (white wire)
within the dryer. If the dryer is installed with a 4-wire electrical
supply connection, the neutral ground conductor must be
removed from the external ground connector (green screw),
and secured under the neutral terminal (center or white wire)
of the terminal block. When the neutral ground conductor is
secured under the neutral terminal (center or white wire) of the
terminal block, the dryer cabinet is isolated from the neutral
conductor.
If local codes do not permit the connection of a neutral
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ground wire to the neutral wire, see "Optional 3-wire
connection" section.
A 4-wire power supply connection must be used when the
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appliance is installed in a location where grounding through
the neutral conductor is prohibited. Grounding through the
neutral is prohibited for (1) new branch-circuit installations
(2) areas where local codes prohibit grounding through the
neutral conductor.
Electric Dryer Grounding
8
Electric Dryer Power Supply Cord
If using a power supply cord:
Use a UL listed power supply cord kit marked for use with
clothes dryers. The kit should contain:
A UL listed 30 A power supply cord, rated 120 V/240 V
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minimum. The cord should be type SRD or SRDT and be at
least 4 ft (1.22 m) long. The wires that connect to the dryer
must end in ring terminals or "U" shaped spade terminals
with upturned ends.
A UL listed strain relief.
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If your outlet looks like this:
Then choose a 4-wire power supply cord with ring
or spade terminals and UL listed strain relief. The
4-wire power supply cord, at least 4 ft (1.22 m)
long, must have four 10-gauge copper wires and
match a 4-wire receptacle of NEMA Type
14R-30R. The ground wire (ground conductor)
4-Wire
may be either green or bare. The neutral conductor
Receptacle
must be identified by a white cover.
(14R-30R)
If your outlet looks like this:
Then choose a 3-wire power supply cord with ring
or spade terminals and UL listed strain relief. The
3-wire power supply cord, at least 4 ft (1.22 m)
long, must have three 10-gauge copper wires and
match a 3-wire receptacle of NEMA Type
10R-30R.
3-Wire
Receptacle
(10R-30R)