Electrical requirements, Electrical ground is required on this appliance, Recommended grounding methods – Whirlpool 50 User Manual
Page 5: Alternate grounding method, Installation instructions, For the electrician
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Installation Instructions
For the electrician
Electrical requirements
A 115 Volt, 60 Hz, AC only, 15 Amp fused electrical
supply is required (time delay fuse or circuit breaker
is recommended). It is recommended that a separate
circuit, serving only this appliance, be provided. DO
NOT use an extension cord.
ELECTRICAL
GROUND
IS
REQUIRED
ON
THIS
APPLIANCE.
Recommended
grounding methods
DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE
THE POWER SUPPLY CORD GROUND PRONG.
For
your
personal
safety,
this
appliance
must
be
grounded. This appliance is equipped with a power
supply
cord
having
a
3-prong
grounding
plug.
To
minimize possible shock hazard, the cord must be
plugged into a mating 3-prong grounding type wall
receptacle, grounded in accordance with the National
Electrical Code and local codes and ordinances. If a
mating wall receptacle is not available, it is the personal
responsibility and obligation of the customer to have
a properly grounded 3-prong wall receptacle installed
by a qualified electrician. See Figure 6.
Alternate
grounding method
DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE
THE POWER SUPPLY CORD GROUND PRONG.
If changing and properly grounding the wall receptacle
is impossible and where local codes permit (consult
your electrical inspector), a temporary adapter may be
plugged into the existing 2-prong wall receptacle to
mate with the 3-prong power supply cord. See Figure
7. THIS, HOWEVER, IS NOT RECOMMENDED.
If this is done, you must connect the grounding eyelet
on the adapter to the wall receptacle cover plate screw
and from this same screw, you must connect a separate
copper ground wire (No. 4 minimum) to a grounded cold
water pipe*. See Figure 7. Do not ground to a gas supp
ly pipe. Do not connect to electrical supply until ap
pliance is permanently grounded.
*Cold water pipe must have metal continuity to elec
trical ground and not be interrupted by plastic, rubber
or
other
electrically
insulating
connectors
(including
water meter or pump) without adding a jumper wire at
these connections.
GROUND ASSEMBLY
(ATTACH TO GROUNDED
COLD WATER PIPE)
ELECTRICALLY
GROUNDED COLD
WATER PIPE (REMOVE
PAINT, etc.)
3PRONG
GROUNDING
PLUG ^
WALL RECEPTACLE
POWER SUPPLY CORD
FIGURE 7