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John Wood Commercial Electric Water Heater User Manual

Page 10

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– 10 –

208V

240V

277V

347V

480V

600V

208V

240V

480V

600V

6

2000

10

10

10

12

14

14

12

12

14

14

9

3000

8

8

8

10

12

14

10

10

14

14

12

4000

6

6

8

8

10

12

8

10

14

14

13.5

4500

6

6

6

8

8

10

8

8

12

14

15

5000

4

6

6

8

8

10

8

8

12

14

18

6000

3

4

6

6

8

10

6

8

10

12

18

3000

3

4

6

6

8

10

6

8

10

12

24

4000

2

3

3

4

6

8

4

6

10

10

27

4500

1

2

3

4

6

8

4

6

8

10

30

5000

0

1

2

3

6

6

4

4

8

10

36

6000

00

0

1

2

4

6

3

3

8

8

36

4000

00

0

1

2

4

6

3

3

8

8

40.5

4500

000

00

0

1

4

4

2

3

6

8

45

5000

0000

000

00

1

3

4

1

2

6

8

54

6000

N/A

0000

000

00

2

3

0

1

6

6

3

6

9

KW Input

No. of

Elements

Element

Wattage

Minimum Field Wiring Size, AWG, 75°C

Three Phase

Single Phase

TABLE 3:

Wiring Requirements

208V

240V

277V

347V

480V

600V

208V

240V

480V

600V

6

2000

28.8

25.0

21.7

17.3

12.5

10.0

16.7

14.4

7.2

5.8

9

3000

43.3

37.5

32.5

25.9

18.8

15.0

25.0

21.7

10.8

8.7

12

4000

57.7

50.0

43.3

34.6

25.0

20.0

33.3

28.9

14.4

11.5

13.5

4500

64.9

56.3

48.7

38.9

28.1

22.5

37.5

32.5

16.2

13.0

15

5000

72.1

62.5

54.2

43.2

31.3

25.0

41.6

36.1

18.0

14.4

18

6000

86.5

75.0

65.0

51.9

37.5

30.0

50.0

43.3

21.7

17.3

18

3000

86.5

75.0

65.0

51.9

37.5

30.0

50.0

43.0

21.7

17.3

24

4000

115.4

100.0

86.6

69.2

50.0

40.0

66.6

57.7

28.9

23.1

27

4500

129.8

112.5

97.5

77.8

56.3

45.0

74.9

65.0

32.5

26.0

30

5000

144.2

125.0

108.3

86.5

62.5

50.0

83.3

72.2

36.1

28.9

36

6000

173.1

150.0

130.0

103.7

75.0

60.0

99.9

86.6

43.3

34.6

36

4000

173.1

150.0

130.0

103.7

75.0

60.0

99.9

86.6

43.3

34.6

40.5

4500

194.7

168.8

146.2

116.7

84.4

67.5

112.4

97.4

48.7

39.0

45

5000

216.3

187.5

162.5

129.7

93.8

75.0

124.9

108.3

54.1

43.3

54

6000

N/A

225.0

194.9

155.2

112.5

90.0

150.0

129.9

65.0

52.0

3

6

9

KW Input

No. of

Elements

Element

Wattage

Full Load in Amperes

Three Phase

Single Phase

TABLE 2:

Load Currents

Note: Table 3 is for reference only. All branch circuit wiring must comply with local and provincial or state codes or, in
the absence of local and provincial or state codes, with the latest edition of the applicable “Electrical Code”.

V) ELECTRICAL