GE GeoSpring GEH50DNSRSA Owner's Manual & Installation Instructions page 18

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.
• do not block the air inlet outlets below and in the top
covers.
Typical vertical
piping arrangement
Installation Instructions
Typical horizontal piping
arrangement
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 Water Recommended Over-Current Protection
Heater Wattage (fuse or circuit breaker amperage rating)
3,000
4,000
4,500
5,000
5,500
6,000
8,000
9,000
10,000
11,000
12,000
Total Water Copper Wire Size AWG based
Heater Wattage on N.E.C. Table 310-16 (167°f/75°C.)
208V
3,000
4,000
4,500
5,000
5,500
6,000
8,000
9,000
10,000
11,000
12,000
18
208V 240V 277V
20 20 15
25 25 20
30 25 25
30 30 25
35 30 25
40 35 30
50 45 40
– 50 45
– – 50
– – 50
– – –
240V 277V
12 12 14
10 10 12
10 10 10
10 10 10
8 10 10
8 8 10
8 8 8
– 8 8
– – 8
– – 8
– – –
480V
15
15
15
15
15
20
25
25
30
30
35
480V
14
14
14
14
14
12
10
10
10
10
8