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Installation Instructions
ELECTRICAL CONNECTIONS
A separate branch circuit with copper conductors,
overcurrent protective device and suitable
disconnecting means must be provided by a qualified
electrician.
All wiring must conform to local codes or latest edition
of National Electrical Code ANSI/NFPA 70.
The water heater is completely wired to the junction
box at the top of the water heater. An opening for 1/2"
electrical fitting is provided for field wiring connections.
The voltage requirements and wattage load for the
water heater are specified on the rating label on the
front of the water heater.
The branch circuit wiring should include
either:
1. Metallic conduit or metallic sheathed cable approved
for use as a grounding conductor and installed with
fittings approved for the purpose.
2. Nonmetallic sheathed cable, metallic conduit or
metallic sheathed cable not approved for use
as a ground conductor shall include a separate
conductor for grounding. It should be attached to
the ground terminals of the water heater and the
electrical distribution box.
To connect power to the water heater:
1. Turn the power off.
2. Remove the screw/screws holding the junction box
top cover.
3. Install L1 to L1, L2 to L2 and ground wire onto the
fixed junction box cover, per illustration below.
4. Reconnect all screws attaching the junction box
covers.
Junction
Box Cover
House
Ground
(Green)
L1
(Black)
Factory Ground
WARNING
Risk of fire or electrical shock.
Ensure both junction box covers and ground
screws are securely fastened for proper
grounding.
NOTE: Install electric connections according to local
codes or latest edition of National Electrical Code
ANSI/NFPA 70.
49-6000226 Rev. 7
Water Heater Junction Box
Junction
Box Cover
L2
(Red)
WARNING
Proper ground connection is
essential. The presence of water in the piping
and water heater does not provide sufficient
conduction for a ground. Nonmetallic piping,
dielectric unions, flexible connectors, etc., can
cause the water heater to be electrically isolated.
Do not disconnect factory ground.
The manufacturer's warranty does not cover any
damage or defect caused by installation, attachment
or use of any type of energy-saving or other
unapproved devices (other than those authorized by
the manufacturer) into, onto or in conjunction with the
water heater. The use of unauthorized energy-saving
devices may shorten the life of the water heater and
may endanger life and property.
The manufacturer disclaims any responsibility for
such loss or injury resulting from the use of such
unauthorized devices.
If local codes require external application of insulation
blanket kits, the manufacturer's instructions included
with the kit must be carefully followed.
Application of any external insulation, blankets
or water pipe insulation to this water heater will
require careful attention to the following:
• Do not cover the temperature and pressure-relief
valve.
• Do not cover access panels to the heating elements.
• Do not cover the electrical junction box of the water
heater.
• Do not cover the operating or warning labels
attached to the water heater or attempt to relocate
them on the exterior of the insulation blanket.
NOTE: This guide recommends minimum branch
circuit sizing based on the National Electric Code.
Refer to wiring diagrams in this manual for field
wiring connections.
BRANCH CIRCUIT SIZING GUIDE
Total
Recommended Over-
Water
Current Protection
Heater
(fuse or circuit breaker
Wattage
amperage rating)
@240V
208-240V
3,000
20
4,000
25
4,500
25
5,000
30
5,500
30
6,000
35
8,000
45
9,000
50
10,000
–
11,000
–
12,000
–
Copper Wire Size AWG
Basedon N.E.C. Table
310-16 (167°F/75°C.)
208-240V
12
10
10
10
10
8
8
8
–
–
–
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