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14 • Residen al Electric Water Heater Use and Care Guide
NOTICE: The tank must be com-
pletely empty of air and full of
water before connec ng electri-
cal power to avoid “Dry Firing.”
Dry Firing may result in the upper
element burning out. This is a
common installa on mistake. Af-
ter you make the water connec-
ons, but before you connect the
electrical power, open a hot wa-
ter faucet and let the water run
full un l all the air is removed.
Let the “hot” water run full for
three minutes or longer before
connec ng any electrical wires. A
Dry Fired upper hea ng element
is an installa on error and is not
covered under warranty.
If Dry Firing occurs, replace the
upper hea ng element according
to the instruc ons on page 22.
Step 9:
Make electrical
connec ons
WARNING! Working on an ener-
gized circuit can result in severe injury
or death from electrical shock.
NOTICE: Do not turn electrical power
on unless you are sure all of the air is
out of the tank and the tank is com-
pletely full of water. If power is applied
before the tank is completely full of
water, the upper element will burn out
(Dry Fire).
1
Be sure the electrical power to
the water heater is turned
OFF at the circuit breaker
panel (or remove the circuit’s fuses).
2
Using a non-contact circuit
tester, check the wiring to
make certain the power is OFF.
3
Check the water heater’s data
plate and ensure that the
home’s voltage, wiring size
(ampacity) and circuit breaker ra ng
and type are correct for this water
heater. Refer to the wiring diagram
located on the water heater for the
correct electrical connec ons. Ensure
that wire sizes, type, and connec ons
comply with all applicable local codes.
In the absence of local codes, follow
NFPA-70 and the current edi on of the
Na onal Electric Code (NEC).
4
Remove the cover on the
electrical junc on box on the
top of the water heater.
Figure 18 - The water heater’s electrical
requirements can be determined from the
data plate.
5
Install wiring in an approved
conduit (if required by local
codes). Use a UL listed or CSA
approved strain relief to secure the
electrical wiring to the water heater.
6
Connect the ground wire to
the green ground screw.
Connect the home’s two
power wires to the water heater’s two
power wires. Use suitable wire nuts or
other approved means to make the
power connec ons.
Figure 19 - Connecting the electrical wires.
INSTALLATION
INSTALLATION
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