


High Performance and High Efficiency
The American-made Vaughn Commercial Electric Water Heater is a highly efficient and robust design well suited for the demands of commercial hot water applications. The Vaughn tank is constructed using heavy gauge steel combined with specially formulated Hydrastone lining, all bronze fittings, and CFC free polyurethane foam insulation to provide a maintenance free, long lasting water heater. Vaughn heaters have the lowest standby heat loss in the industry. Our leading 5 year warranty provides further peace of mind.


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Heavy Duty Construction
- Seamless Hydrastone cement lining provides long tank life
- High impact composite jacket will not rust, scratch or dent and is easy to clean
- Factory wired and fully integrated commercial grade operating controls provide reliable performance
High Efficiency
- 2" thick polyurethane foam insulation and hydrastone lining minimize standby heat loss providing industry leading performance and efficiency
No Sacrificial Anode Rod
- Reduces operation expenses by eliminating periodic inspection and replacement costs associated with maintaining an anode rod
Warranty
- 5 Year Limited Warranty

Model A4 Water Heater Specifications
5 Years
10 Year Available
Dimensional Data
Model | Storage Capacity (Gallons) | Standard KW | Height (Inches) | Diameter* (Inches) | Shipping Weight (lbs.) |
S50A4-6 | 50 | 6 | 53 | 22 3/4 | 435 |
S50A4-9 | 9 | ||||
S50A4-12 | 12 | ||||
S50A4-18 | 18 | ||||
S50A4-24 | 24 | ||||
S50A4-30 | 30 | ||||
S50A4-36 | 36 | ||||
S50A4-48 | 48 | ||||
S50A4-54 | 54 | ||||
S80A4-6 | 80 | 6 | 58 | 26 | 500 |
S80A4-9 | 9 | ||||
S80A4-12 | 12 | ||||
S80A4-18 | 18 | ||||
S80A4-24 | 24 | ||||
S80A4-30 | 30 | ||||
S80A4-36 | 36 | ||||
S80A4-48 | 48 | ||||
S80A4-54 | 54 | ||||
S100A4-6 | 100 | 6 | 69 3/8 | 26 | 550 |
S100A4-9 | 9 | ||||
S100A4-12 | 12 | ||||
S100A4-18 | 18 | ||||
S100A4-24 | 24 | ||||
S100A4-30 | 30 | ||||
S100A4-36 | 36 | ||||
S100A4-48 | 48 | ||||
S100A4-54 | 54 | ||||
S120A4-6 | 119 | 6 | 69 1/2 | 28 | 625 |
S120A4-9 | 9 | ||||
S120A4-12 | 12 | ||||
S120A4-18 | 18 | ||||
S120A4-24 | 24 | ||||
S120A4-30 | 30 | ||||
S120A4-36 | 36 | ||||
S120A4-48 | 48 | ||||
S120A4-54 | 54 |
KW Selection Chart With Amperage
Standard Rating KW | BTU/HR | GPH Recovery at 100°F Rise (°FΔT) | Amperage Ratings At Various Voltages | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Single Phase | Three Phase | |||||||||
208V | 240V | 480V | 208V | 240V | 380V | 415V | 480V | |||
3 | 10,236 | 12 | 14 | 13 | 6 | 8 | 7 | 5 | 4 | 4 |
4 | 13,648 | 16 | 19 | 17 | 8 | 11 | 10 | 6 | 6 | 5 |
6 | 20,472 | 25 | 29 | 25 | 13 | 17 | 15 | 9 | 8 | 7 |
8 | 27,296 | 33 | 39 | 33 | 17 | 22 | 19 | 12 | 11 | 10 |
10 | 34,120 | 41 | 48 | 42 | 21 | 28 | 24 | 15 | 14 | 12 |
12 | 40,944 | 49 | 58 | 50 | 25 | 33 | 29 | 18 | 17 | 15 |
15 | 51,180 | 62 | 72 | 63 | 31 | 42 | 36 | 23 | 21 | 18 |
18 | 61,416 | 74 | 87 | 75 | 38 | 50 | 43 | 27 | 25 | 22 |
20 | 68,240 | 82 | 96 | 83 | 42 | 56 | 48 | 30 | 28 | 24 |
24 | 81,888 | 98 | 115 | 100 | 50 | 67 | 58 | 37 | 33 | 29 |
30 | 102,360 | 123 | 144 | 125 | 63 | 83 | 72 | 46 | 42 | 36 |
36 | 122,832 | 148 | 173 | 150 | 75 | 100 | 87 | 55 | 50 | 43 |
40 | 136,480 | 164 | 192 | 167 | 83 | 111 | 96 | 61 | 56 | 48 |
45 | 153,540 | 185 | 216 | 188 | 94 | 125 | 108 | 69 | 63 | 54 |
50 | 170,600 | 205 | 240 | 208 | 104 | 139 | 120 | 76 | 70 | 60 |
54 | 184,248 | 221 | 260 | 225 | 113 | 150 | 130 | 82 | 75 | 65 |
1. The KW selections above are shown for convenience. A full selection of KW ratings from 1 to 58 KW is available by simply entering the desired KW into the model number.
2. For alternative voltages, including 220, 277, 440, 460, 575 and 600 volt, please contact us directly for available KW selection.
Recovery Capacity (Gal. Per Hour) for Various Wattages and Water Temperature Rises
Wattage | 130°F | 120°F | 110°F | 100°F | 80°F | 60°F | 40°F | 20°F |
1500 | 4.6 | 5.0 | 5.5 | 6.1 | 7.6 | 10.1 | 15.4 | 30.7 |
2000 | 6.3 | 6.8 | 7.4 | 8.2 | 10.2 | 13.6 | 20.5 | 41.0 |
2500 | 7.8 | 8.5 | 9.2 | 10.2 | 12.8 | 17.1 | 25.6 | 51.2 |
3000 | 9.4 | 10.2 | 11.1 | 12.3 | 15.4 | 20.5 | 30.7 | 61.5 |
3500 | 11.0 | 11.9 | 13.0 | 14.3 | 17.9 | 23.9 | 35.9 | 71.7 |
4000 | 12.6 | 13.6 | 14.9 | 16.4 | 20.5 | 27.3 | 41.0 | 82.0 |
4500 | 14.1 | 15.3 | 16.7 | 18.4 | 23.1 | 30.7 | 46.1 | 92.2 |
5000 | 15.7 | 17.0 | 18.6 | 20.5 | 25.6 | 34.2 | 51.2 | 102.5 |
5500 | 17.3 | 18.8 | 20.5 | 22.5 | 28.2 | 37.6 | 56.3 | 112.7 |
6000 | 18.9 | 20.5 | 22.3 | 24.6 | 30.7 | 40.8 | 61.5 | 123.0 |
7200 | 22.6 | 24.5 | 26.8 | 29.5 | 36.9 | 49.1 | 73.8 | 147.6 |
9000 | 28.3 | 30.7 | 33.5 | 36.9 | 46.1 | 61.5 | 92.2 | 184.5 |
10000 | 31.5 | 34.1 | 37.2 | 41.0 | 51.2 | 68.3 | 102.5 | 205.0 |
12000 | 37.8 | 41.0 | 44.7 | 49.2 | 61.5 | 82.0 | 123.0 | 246.0 |
14400 | 45.3 | 49.1 | 53.6 | 59.0 | 73.8 | 98.3 | 147.6 | 295.2 |
15000 | 47.3 | 51.2 | 55.9 | 61.5 | 76.9 | 102.5 | 153.7 | 307.5 |
18000 | 56.7 | 61.5 | 67.0 | 73.8 | 92.2 | 123.0 | 184.5 | 369.0 |
21600 | 68.0 | 73.7 | 80.4 | 88.5 | 110.7 | 147.5 | 221.4 | 442.8 |
24000 | 75.6 | 82.0 | 89.4 | 98.4 | 123.0 | 164.0 | 246.0 | 492.0 |
30000 | 94.6 | 102.5 | 111.8 | 123.0 | 154.0 | 205.0 | 307.5 | 615.0 |
36000 | 113.5 | 123.0 | 134.1 | 147.6 | 184.5 | 246.0 | 369.0 | 738.0 |
45000 | 141.9 | 153.7 | 167.7 | 184.5 | 230.0 | 307.4 | 461.2 | 922.5 |
54000 | 170.3 | 184.5 | 201.2 | 221.4 | 276.7 | 368.9 | 553.5 | 1107.0 |
Downloads
Technical Documents
- Commercial Heavy Duty Brochure PDF (2.7 MB)
- Commercial Specs PDF (14.0 KB)
- Commercial Heavy Duty Tech Drawings PDF (83.3 KB)
- Tank Assembly A Model Configurations PDF (225 KB)
- Tank Assembly Heat Pump A Model Configurations PDF (273 KB)
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