GE GE80T06AAG Use and Care Manual - Page 8

Branch Circuit Sizing and Wire Size Guide, Electrical Connections - water

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Operating Instructions Installation Instructions Safety Instructions Installing the water heater. Ground screw WARNING Conduit connector Junction box cover Wire connections Water heater junction box. CAUTION: The presence of water in the piping and water heater does not provide sufficient conduction for a ground. Non-metallic piping, dielectric unions, flexible connectors etc. can cause the water heater to be electrically isolated. 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 inside jacket at the top front of the water heater. An opening for 1/2″ or 3/4″ electrical fitting is provided for field wiring connections. The voltage requirements and wattage load for the water heater are specified on the rating plate on the front of the water heater. The branch circuit wiring should include either: Metallic conduit or metallic sheathed cable approved for use as a grounding conductor and installed with fittings approved for the purpose. Non-metallic 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. NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code. Refer to wiring diagrams in this manual for field wiring connections. Branch Circuit Sizing and Wire Size Guide Total Water Heater Wattage 3,000 4,000 4,500 5,000 5,500 6,000 8,000 9,000 10,000 11,000 12,000 Recommended Over Current Protection (fuse or circuit breaker amperage rating) 208V 20 25 30 30 35 40 50 - - - - 240V 20 25 25 30 30 35 45 50 - - - 277V 15 20 25 25 25 30 40 45 50 50 - 480V 15 15 15 15 15 20 25 25 30 30 35 Copper Wire Size AWG Based on N.E.C. Table 310-16 (75°C) 208V 12 10 10 10 8 8 8 - - - - 240V 12 10 10 10 10 8 8 8 - - - 277V 14 12 10 10 10 10 8 8 8 8 - 480V 14 14 14 14 14 12 10 10 10 10 8 Care and Cleaning Troubleshooting Tips Customer Service 8

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8
Installing the water heater.
NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code.
Refer to wiring diagrams in this manual for field wiring connections.
Branch Circuit Sizing and Wire Size Guide
Total Water
Recommended Over Current Protection
Copper Wire Size AWG Based
Heater Wattage
(fuse or circuit breaker amperage rating)
on N.E.C. Table 310-16 (75°C)
208V
240V
277V
480V
208V
240V
277V
480V
3,000
20
20
15
15
12
12
14
14
4,000
25
25
20
15
10
10
12
14
4,500
30
25
25
15
10
10
10
14
5,000
30
30
25
15
10
10
10
14
5,500
35
30
25
15
8
10
10
14
6,000
40
35
30
20
8
8
10
12
8,000
50
45
40
25
8
8
8
10
9,000
–
50
45
25
–
8
8
10
10,000
–
–
50
30
–
–
8
10
11,000
–
–
50
30
–
–
8
10
12,000
–
–
–
35
–
–
–
8
Customer Service
Troubleshooting Tips
Care and Cleaning
Operating Instructions
Installation Instructions
Safety Instructions
CAUTION: The presence
of water in the piping and
water heater does not
provide sufficient
conduction for a ground.
Non-metallic piping,
dielectric unions, flexible
connectors etc. can cause
the water heater to be
electrically isolated.
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 inside jacket at the top
front of the water heater. An opening for
1/2
″
or 3/4
″
electrical fitting is provided
for field wiring connections.
The voltage requirements and wattage
load for the water heater are specified
on the rating plate on the front of the
water heater.
The branch circuit wiring should
include either:
Metallic conduit or metallic
sheathed cable approved for use as
a grounding conductor and
installed with fittings approved for
the purpose.
Non-metallic 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.
WARNING
WARNING
Water heater junction box.
Ground screw
Junction
box
cover
Wire connections
Conduit
connector