Installation / Operation Instruction Manual

14
Electrical Connections continued-
The following tables show the recommended fuse size for the maximum
wattage supplied to the water heater. The maximum wattage and rate voltage
are shown on the water heater data plate.
BRANCH CIRCUIT SIZING GUIDE
Watt
Load
Recommended over
current protection rating
Copper wire size – AWG
Based on N.E.C. Table
310-16
Approximate
Recovery
Gal./Hr. @100°F
Rise
120V
208V
240V
120V
208V
240V
1500
15
15
15
12
14
14
6.1
2000
20
15
15
10
14
14
8.2
2500
30
15
15
10
14
14
10.2
3000
30
20
15
8
12
12
12.3
3500
20
20
10
12
14.3
4000
25
20
10
10
16.4
4500
30
25
10
10
18.4
5000
30
30
10
10
20.5
5500
35
30
8
10
22.5
6000
35
30
8
8
24.8
9000
50
45
8
6
36.9
10000
60
55
4
4
41.0
11000
30
4
45.1
SINGLE PHASE FULL LOAD CURRENT DRAW
(NON-SIMULTANEOUS OPERATION)
Element
Wattage
120V
208V
240V
277V
380V
415V
480V
1500/1500
12.5
7.2
6.3
5.4
3.9
3.6
3.1
2000/2000
16.7
9.6
8.3
7.2
5.3
4.8
4.2
2500/2500
20.8
12.0
10.4
9.0
6.6
6.0
5.2
3000/3000
25.0
14.4
12.5
10.8
7.9
7.2
6.3
3500/3500
N/A
16.8
14.6
12.6
9.2
8.4
7.3
4000/4000
N/A
19.2
16.7
14.4
10.5
9.6
8.3
4500/4500
N/A
21.6
18.8
16.2
11.8
10.8
9.4
5000/5000
N/A
24.0
20.8
18.8
13.2
12.0
10.4
5500/5500
N/A
N/A
22.9
19.9
14.5
13.3
11.5
6000/6000
N/A
N/A
N/A
21.7
15.8
14.5
12.5
FOR YOUR SAFETY
Increasing the wattage and/or voltage from the factory original
equipment can require changes to the water heater and/or the electric
service. Unauthorized modification of the water heater may create a
hazard to life and property and will nullify the warranty. Contact your
dealer or utility company before making any changes.