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Model LDC
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High Performance and High Efficiency

The Vaughn Top Performer Plus Indirect Water Heater combines advanced engineering and Hydrastone cement lining to provide the industry's longest lasting and most reliable indirect water heater. The high efficiency design includes a factory installed and field removable all copper heat exchanger coil to provide maximum hot water output while significantly reducing mineral build up. The Vaughn industry leading technologies include an electronic thermostat with adjustable differential to ensure delivery of highly accurate and.

Top Performer Plus

Heavy Duty Construction

  • Hydrastone cement lining provides long tank life
  • Plastic jacket will not rust, scratch or dent eliminating damage and is maintenance free
  • No sacrificial anode rod required

High Efficiency

  • Industry's lowest standby heat loss reduces your operating costs

Advanced Electronic Controller

  • Electronic thermostat provides accurate & reliable temperature control

Warranty Information

Industry's First, 2/10 Limited Warranty
Two year labor, ten year full tank replacement including coil.
Commerical 5 Year Limited Warranty
Optional Lifetime Limited Warranty
A repair or replacement is provided (excluding labor and freight) if the tank or heat exchanger should leak for as long as the original purchaser owns the home.
How It Works

Tank Specifications

Model Storage
Capacity
(Gallons)
Overall Dimensions
(Inches)
Shipping
Weight
(Lbs)
Domestic Water Boiler Water
Supply/Return
(Heating Coil)
T&P
Relief Valve
Cold Water
Inlet
Hot Water
Outlet
Height Diameter
S35TPP 35 39" 22 3/4" 185 3/4" MNPT 3/4" FNPT 3/4" MNPT 3/4" FNPT
S50TPP 50 40" 26" 238 3/4" MNPT 3/4" FNPT 3/4" MNPT 3/4" FNPT
S70TPP 70 46 1/2" 28" 290 3/4" MNPT 3/4" FNPT 3/4" MNPT 3/4" FNPT
S70DTPP 70 46 1/2" 28" 290 1 1/2" MNPT 1 1/2" MNPT 1" MNPT 3/4" FNPT
Note: For 3/4" outlet a brass Tee is supplied for T&P relief valve installation in the domestic hot water outlet connection. For 1 1/2" outlet models the T&P relief valve installs directly in the tank.

Performance Specifications

Model First Hour Rating (GPH) Boiler Output
(6 GPM @ 200°F)
Boiler Water Continuous Flow Standby Heat Loss
115°F 140°F BTU/HR Flow Rate (GPM) Head Loss
(ft. w.c.)
°F/HR
S35TPP 300 230 150,000 6 GPM 7 ft. w.c. 0.72
S50TPP 320 250 150,000 6 GPM 7 ft. w.c. 0.56
S70TPP 340 270 150,000 6 GPM 7 ft. w.c. 0.45
S70DTPP 475 385 235,000 14 GPM 14 ft. w.c. 0.45
First hour ratings based on:
  • 50°F inlet water temperature
  • 200°F boiler water supply to coil
  • Outputs may vary depending on boiler size, boiler water supply temperature, flow rate through coil and circumstances of installation and use.

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Options

Options

  • Alternative jacket color - Blue Blue Option or Red Red Option
  • Double wall heat exchanger
  • Back-up electric heating element for supplemental heating
  • Optional Lifetime Limited Warranty

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Custom Designed Heaters 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.

Is the Vaughn heat exchanger removable?

Yes. The heat exchanger is fully removable in all Vaughn indirect water heaters. The benefit to having a removable heat exchanger is that the coil can be removed for cleaning and de-scaling for improved performance and efficiency when used in hard water applications. It should be noted that the heat exchanger is not removable and the coil cannot be cleaned in many other indirect water heater brands.

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 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.


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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