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Electric Water Heater
Commercial Heavy Duty Series
Model A4  (80-119 Gallon - 6-54 KW - 1 or 3 Phase)
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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.

A4 Series

cULus Listed

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
How It Works

Model A4 Water Heater Specifications

Capacities: 80-119 Gallons
Orientation: Vertical
Voltages: 208-600 Volt
Phase: 1 and 3 Phase
Inlet Size: 1.5" NPT connector
Outlet Size: 1.5" Male NPT
Drain Size: 3/4" GHT
Relief Valve Size: 3/4" Female NPT
Relief Valve Type: T&P, 210°F, 150 psi
Hi-Limit: Immersion with Manual Reset
Thermostat Range: Immersion, 100-180°F
Design WP: 150 psi
Design TP: 300 psi
Elements: Incoloy Sheathed
Insulation: 2" Polyurethane Foam
Tank Warranty:
5 Years
10 Year Available
Electrical Warranty: 1 Year
Jacket: High Impact Colorized Composite
Finish: White with Black Trim

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
* Does not include control cabinet, which extends 8" from jacket.

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
58 197,896 238 279 242 121 161 140 88 81 70
Notes:
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. Units 45 KW and over are supplied with 1 1/2" Male NPT inlet/outlet connections and immersion hi-limit.
3. 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

Options

  • 10 Year Non Pro-Rated tank warranty
  • Immersion adjustable safety hi-limit cut out with manual reset (100-240°F)
Build Your Model
STEP 1:

Storage
Capacity

Gallons

STEP 2:

Standard
KW

KW

STEP 3:

Voltage
 


STEP 3:

Phase
 


Model Number:

Commercial Heavy Duty Series Specific Questions

Why is dielectric isolation so important?

The unique design of the Vaughn heat exchanger electrically isolates the heat exchanger from the tank by means of a non conductive barrier installed between the two. This provides dielectric isolation between the tank and the heat exchanger thereby eliminating electrolysis between the two due to dissimilar metals. This feature is one reason why the Vaughn indirect water heater far outlasts competitor models.

What is a sacrificial anode and does a cement lined tank need one?

All water heaters constructed using a steel tank requires a lining to protect the internal steel surfaces from corrosion. Certain linings (i.e. glass and epoxy), due to their nature, have unavoidable holes and imperfections resulting in exposure of the steel tank. As a result of this deficiency, the manufacturer will install an anode rod(s) in an attempt to delay corrosion of the steel tank. An anode rod is typically made of aluminum, magnesium or zinc, is a maintenance item that requires periodic inspection and replacement, and is often times the cause of a “rotten egg” odor to your hot water. Often referred to as a sacrificial anode rod because, over time, it slowly dissolves, sacrificing itself as it is attacked by aggressive substances in the water which would otherwise attack the steel tank through the pinholes and imperfections of the glass or epoxy lining. A cement lined steel tank on the other hand does not require an anode because of the thickness and guaranteed 100% coverage of the cement lining over all internal surfaces of the steel tank. This eliminates the need for an anode rod in a cement lined water heater, resulting in a significantly longer life compared to a glass or epoxy lined water heater. For a further discussion please click on the following link Cement Lining

Do I need a drain pan under my heater?

Yes, Vaughn advises that a drip pan with a proper drainage connection be installed under your water heater. In some locations drip pans are required by code and in other situations they are highly recommended, but not required. In either case, if a water heater leak or a dripping relief valve could result in property damage then a drip pan must be installed under the water heater, even when not required by code.

General Questions

Are Vaughn heaters made in the USA?

Yes. Vaughn water heaters are all made in the USA and our factories located in Connecticut and Massachusetts and qualify for incentives under The Buy American Act and the American Recovery and Reinvestment Act (ARRA). For more information go to the following link Here.

Where can I purchase a Vaughn water heater?

There are numerous ways to purchase a Vaughn water heater depending upon the model you desire and your geographic location. The easiest way is either to visit our "Where to Buy" option in the red menu bar across the website, or contact Vaughn directly at 978-462-6683 and ask for the sales department where you will be directed to either our local representative or our order entry department for quick and easy ordering.

What code requirements are applicable for my installation?

The installation of water heaters are mostly governed by the Uniform Plumbing Code (or CPC in California), Uniform Mechanical Code, and National Electrical Code. These are standard codes that are used across the United States, and each state can amend them as they wish. To take it further, each city and county jurisdiction has assigned one or more building officials with what is called Administrative Authority. This Authority" allows each jurisdiction the right to interpret the codes as they see fit. Because of this many cities differ on their requirements. Vaughn strongly recommends that you contract with a plumbing engineer who knows and understands the intricacies of the building code requirements for your location.

Is it OK if my plumbing system has plastic pipes (PVC or PEX)?

Yes. All Vaughn water heaters will work with both types of plastic piping.

My question is not found in these FAQ’s, where do I look next?

Check out the Vaughn Product Center at Here for a complete listing of all technical Operation & Maintenance manuals documentation available by model. Get easy access to Installation Sales Brochures Service Bulletins Wiring Schematics Parts Breakdowns and various other technical documents related to the full line of Vaughn water heaters. Or if you prefer please call us at 978-462-6683 and ask to speak with Sales.

Downloads

Technical Documents


Many of our products literature is available online for download. To open these files, a PDF viewer is required. If you do not have one, Adobe provides Acrobat Reader free of charge for viewing only. Use this link to download Acrobat Reader. You may also choose to download the file to your PC for future reference or printing. On most operating systems, simply right-click on the links below, choose "Save target as..." or "Save link as...", choose a location and it will save the document to your computer for future reference.


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26 Old Elm Street
P.O. Box 5431
Salisbury, MA 01952-5431
Tel: 978-462-6683
Fax: 978-462-6497

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