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Electric Water Heater
Residential Series
Model ME  (30-55 Gallon - Up To 12 KW)
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High Performance and High Efficiency

The ME-Series electric water heater from Vaughn combines time-proven technologies with our Hydrastone cement lining for the industry's longest lasting and most reliable high-efficiency electric water heater. The ME-Series is equipped with low-watt-density elements, thereby reducing the potential problem of premature failure due to mineral build-up. The unique cold water inlet gently diffuses the flow of cold water into the lower portion of the tank, resulting in improved stratification, energy efficiency and thermal storage performance. Available in a wide range of sizes, the ME-Series is a versatile fit for any project. Minimal standby heat loss, proven components and the industry's longest lasting tank make the ME-Series electric water heater the best choice for your water heating needs.

S Series

Heavy Duty Construction

  • Seamless Hydrastone cement lining provides long tank life
  • Plastic jacket is maintenance free and will not rust, scratch, or dent, eliminating the potential for damage due to shipping and handling
  • No sacrificial anode rod

High Efficiency

  • 3" thick polyurethane foam insulation reduces standby heat loss to maximize operating efficiency

Advanced Heating Element

  • Low-watt-density incoloy element and all copper/brass construction provides protection against mineral build up

Radiant Certified

  • UL approved for radiant heating applications in the USA and Canada

Warranty

  • Residential 10 year tank base warranty, 1 year limited parts warranty
  • Commercial 5 year tank warranty, 1 year limited parts warranty
How It Works

Model ME Water Heater Specifications

Capacities: 30 thru 55 Gallons
Orientation: Vertical
Voltages: 120 thru 480 Volt
Phase: 1 Phase
Inlet Size: 3/4" Female NPT
Outlet Size: 3/4" Male NPT
Drain Size: 3/4" GHT
Relief Valve Size: 3/4" Female NPT
Relief Valve Type: T&P, 210°F, 150 psi
Thermostat Range: 110-170°F (surface)
Hi-Limit: 190°F Manual Reset
Design TP: 300 psi
Elements: Incoloy Sheathed
Insulation:
Model S: 2" Polyurethane Foam
Model ME: 3" Polyurethane Foam
Tank Warranty:
Standard: 10 Year Non Pro-Rated
Electrical Warranty: 1 Year
Jacket: High Impact Colorized Composite
Finish: White with Black Trim

General Specifications

Tank

The Vaughn tank is all welded heavy steel construction designed for 150 psi working pressure and tested to 300 psi. Each tank is centrifugally lined with 1/2" thick seamless high density Hydrastone cement with guaranteed 100% coverage of all steel surfaces. All tank openings are non-ferrous solid copper-silicon and are resistant to the corrosive effects of hot water.

Plumbing

3/4" combination cold water inlet and drain, with non-corrosive strata flow diffuser which prevents incoming cold water from mixing too rapidly with the hot water in the tank and assures delivery of more hot water - not lukewarm. A 3/4" hot water outlet with a uniquely designed built-in heat trap prevents heated water from radiating through the piping during standby periods.

Electrical

Copper sheathed immersion heating elements with low watt density for prolonged life - up to 12 KW in 120, 208, 240, 277, 480 volt single phase. An adjustable surface thermostat operates in 110-170°F range.
Integral hi-limit with manual reset button for over-temperature protection is factory set at 190°F.
Upper and lower element configurations are factory wired for non-simultaneous operation.

Insulation

Highly efficient thick polyurethane foam insulation meets or exceed the requirements of ANSI/ASHRAE/IESNA 90.1-2007 standards for energy efficiency and heat loss.

Jacket

The exterior protective jacket is constructed from high impact composite material which cannot rust or corrode and does not require painting.

Outline Dimensions for Vaughn Residential Plus Water Heater

Dimensional Data

Model Diameter
(Inches)
Height Shipping
Weight
(lbs.)
ME30 22.75 41.75 164
ME40 22.75 58.25 216
ME40U 25 33 213
ME50 25 51.5 229
ME50T 22.75 67.25 229
ME55 25 59.5 254
Note: For a full list of all Vaughn Energy Factors, please visit the AHRI Directory.

Recovery Capacity (Gal./Hour) For Various Wattages & Water Temperature Rises

Wattage 130° 120° 110° 100° 80° 60° 40° 20°
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 37.2 41.0 51.2 68.3 102.5 205.0
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
Model Energy Factor
ME30 0.94*
ME40 0.94*
ME50 0.95
ME60 0.92*
ME65 0.92*
ME70 0.92*
ME80 0.93
ME100 0.90*
ME120 0.90*
Note: *Efficiency Improvements in Process, Higher EF Ratings Pending.

Options

  • Immersion thermostat specify 100-180°F
  • 1.5" Male NPT inlet and outlet water connections
  • Heating elements wired for simultaneous operation
  • Off-peak wiring for load management savings
  • Alternate voltages available
  • Horizontal construction available
  • 4" hand hole cleanout for hard water applications
Build Your Model
STEP 1:

Insulation

    2" Foam Insulation
3" Foam Insulation

STEP 2:

Storage
Capacity

Gallons

STEP 3:

Top Element
KW

KW

STEP 4:

Lower Element
KW

KW

STEP 5:

Voltage




Model Number:

Residential Series Specific Questions

How does the heat trap work?

The Vaughn water heater is constructed with a heat trap installed within the water heater’s hot water outlet connection. This device helps prevent heat from escaping through the storage tank’s hot water outlet during standby periods, resulting in improved operating efficiency. The heat trap is constructed from a specially designed bronze nipple with an internal floating ball that during standby periods of no flow settles and closes off the storage tank thereby preventing thermal conduction of hot water radiating through the hot water outlet.

Can a timer be installed on my Vaughn water heater?

Water heater timers are devices that provide automatic control of electric water heaters. They can be programmed to turn a water heater off or on at times typically set by your local utility. Your local electric utility may have in place an “Off-Peak” or Time-of-Use (TOU) rates which offer a customer the incentive to consume power during certain periods of the day. The Vaughn S and ME Models are available with various timer control options, ranging from programmable 7 day timers to utility specific devices that control the water heater.

Do I need to install an insulation blanket?

No. Most new water heaters and storage tanks are highly efficient with respect to the amount of heat loss radiating from the storage tank. This is due to the use of “blown in” polyurethane foam insulation as the insulating method for modern tanks, compared to the fiberglass blanket style insulation used by water heater manufacturer’s largely in the past. As such there is little to no benefit, and very possibly a detrimental effect to efficiency,from installing an insulation blanket on a new water heater or storage tank constructed with foam insulation. If you do decide to install an insulation on your heater or storage tank, please be certain that the access panels, plumbing connections, and relief valves have proper access and clearance.

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.

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 Massachusets 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 to 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.


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

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