Whirlpool 8542748 Manual page 5

If your outlet looks like this:
4-wire receptacle (14-30R)
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 4, 10-gauge copper wires
and match a 4-wire receptacle of NEMA Type 14-30R. The ground
wire (ground conductor) may be either green or bare. The neutral
conductor must be identified by a white cover.
If your outlet looks like this:
3-wire receptacle (10-30R)
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 3, 10-gauge copper wires
and match a 3-wire receptacle of NEMA Type 10-30R.
If connecting by direct wire:
Power supply cable must match power supply (4-wire or 3-wire)
and be:
Flexible armored cable or nonmetallic sheathed copper cable
(with ground wire), protected with flexible metallic conduit. All
current-carrying wires must be insulated.
10-gauge solid copper wire (do not use aluminum).
At least 5 ft (1.52 m) long.
For a grounded, cord-connected washer/dryer:
This washer/dryer must be grounded. In the event of
malfunction or breakdown, grounding will reduce the risk of
electric shock by providing a path of least resistance for
electric current. This washer/dryer uses a cord having an
equipment-grounding conductor and a grounding plug. The
plug must be plugged into an appropriate outlet that is
properly installed and grounded in accordance with all local
codes and ordinances.
For a permanently connected washer/dryer:
This washer/dryer must be connected to a grounded metal,
permanent wiring system, or an equipment-grounding
conductor must be run with the circuit conductors and
connected to the equipment-grounding terminal or lead on
the washer/dryer.
WARNING:
Improper connection of the equipment-
grounding conductor can result in a risk of electric shock.
Check with a qualified electrician or service representative or
personnel if you are in doubt as to whether the washer/dryer
is properly grounded. Do not modify the plug on the power
supply cord: if it will not fit the outlet, have a proper outlet
installed by a qualified electrician.
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