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Commercial Grade Operating Controls

Commercial Heavy Duty Water Heater

50-119 Gallon
Efficient
Long Lasting
Superior Performance

The Vaughn Commercial Electric Water Heater is a highly efficient water heater with a robust design well suited for the demands of commercial hot water applications. The Vaughn tank is constructed using heavy gauge steel combined with a specially formulated HydraStone lining, all bronze fittings, and non-CFC polyurethane foam insulation to provide a maintenance-free, long-lasting water heater. Vaughn heaters have the lowest standby heat loss in the industry.

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Heavy Duty Electric

Features

  • Heavy Duty Construction - HydraStone lining provides long tank life, the high-impact composite jacket will not rust, scratch or dent.
  • Factory wired and fully integrated commercial grade operating controls provide reliable performance
  • 2" thick polyurethane non-CFC foam insulation and a 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
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Product Specifications

  • Tank: HydraStone Lined Steel
  • Capacities: 50-119 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" non-CFC Polyurethane Foam
  • Warranty: 5 Year Tank non pro-rated
  • Electrical Warranty: 1 Year
  • Jacket: High Impact Composite
  • Finish: White with Black Trim

 

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Build Your Model

STEP 1:

Storage
Capacity

Gallons

STEP 2:

Standard
KW

KW

STEP 3:

Voltage
 

STEP 3:

Phase
 

Model Number:

Additional Product Details

Dimensional Data

Model Storage Capacity (Gallons) Standard KW  Height (Inches) Diameter* (Inches) Shipping Weight (lbs.)
S80A4-12 80 12 58 26 375
S80A4-18 18
S80A4-24 24
S80A4-30 30
S80A4-36 36
S80A4-48 48
S80A4-54 54
S100A4-12 100 12 69 3/8 26 405
S100A4-18 18
S100A4-24 24
S100A4-30 30
S100A4-36 36
S100A4-48 48
S100A4-54 54
S120A4-12 119 12 69 1/2 28 455
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. 

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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
208 V 240 V 480 V 208 V 240 V 380 V 415 V 480 V
4 13,648 16 19 17 8 11 10 6 6 5
6 20,472 25 29 25 13 17 14 9 8 7
8 27,296 33 38 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 14
14 47,768 57 67 58 29 39 34 21 19 17
16 54,592 65 77 67 33 44 38 24 22 19
18 61,416 74 87 75 38 50 43 27 25 22
20 68,240 82 96 83 42 56 48 30 28 24
22 75,064 90 106 92 46 61 53 33 31 26
24 81,888 98 115 100 50 67 58 36 33 29
26 88,712 106 125 108 54 72 63 40 36 31
28 95,536 115 135 117 58 78 67 43 39 34
30 102,360 123 144 125 63 83 72 46 42 36
32 109,184 131 154 133 67 89 77 49 45 38
34 116,008 139 163 142 71 94 82 52 47 41
36 122,832 147 173 150 75 100 87 55 50 43
38 129,656 155 183 158 79 105 91 58 53 46
40 136,480 164 192 167 83 111 96 61 56 48
42 143,304 172 202 175 88 117 101 64 58 51
44 150,128 180 212 183 92 122 106 67 61 53
46 156,952 188 221 192 96 128 111 70 64 55
48 163,776 196 231 200 100 133 115 73 67 58
50 170,600 205 240 208 104 139 120 76 70 60
52 177,424 213 250 217 108 144 125 79 72 63
54 184,248 221 260 225 113 150 130 82 75 65
56 191,072 229 269 233 117 155 135 85 78 67

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. 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

Heating Power Water Temperature Rise (Degrees °F)
Wattage BTU/Hr 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10
4,000 13,648 10.9 11.7 12.6 13.6 14.9 16.4 18.2 20.5 23.4 27.3 32.7 40.9 54.5 81.8 163.6
6,000 20,472 16.4 17.5 18.9 20.5 22.3 24.5 27.3 30.7 35.1 40.9 49.1 61.4 81.8 122.7 245.5
8,000 27,296 21.8 23.4 25.2 27.3 29.8 32.7 36.4 40.9 46.8 54.5 65.5 81.8 109.1 163.6 327.3
10,000 34,120 27.3 29.2 31.5 34.1 37.2 40.9 45.5 51.1 58.4 68.2 81.8 102.3 136.4 204.6 409.1
12,000 40,944 32.7 35.1 37.8 40.9 44.6 49.1 54.5 61.4 70.1 81.8 98.2 122.7 163.6 245.5 490.9
14,000 47,768 38.2 40.9 44.1 47.7 52.1 57.3 63.6 71.6 81.8 95.5 114.6 143.2 190.9 286.4 572.8
16,000 54,592 43.6 46.8 50.4 54.5 59.5 65.5 72.7 81.8 93.5 109.1 130.9 163.6 218.2 327.3 654.6
18,000 61,416 49.1 52.6 56.6 61.4 66.9 73.6 81.8 92.1 105.2 122.7 147.3 184.1 245.5 368.2 736.4
20,000 68,240 54.5 58.4 62.9 68.2 74.4 81.8 90.9 102.3 116.9 136.4 163.6 204.6 272.7 409.1 818.2
22,000 75,064 60 64.3 69.2 75 81.8 90 100 112.5 128.6 150 180 225 300 450 900
24,000 81,888 65.5 70.1 75.5 81.8 89.3 98.2 109.1 122.7 140.3 163.6 196.4 245.5 327.3 490.9 981.9
26,000 88,712 70.9 76 81.8 88.6 96.7 106.4 118.2 133 152 177.3 212.7 265.9 354.6 531.8 1063.7
28,000 95,536 76.4 81.8 88.1 95.5 104.1 114.6 127.3 143.2 163.6 190.9 229.1 286.4 381.8 572.8 1145.5
30,000 102,360 81.8 87.7 94.4 102.3 111.6 122.7 136.4 153.4 175.3 204.6 245.5 306.8 409.1 613.7 1227.3
32,000 109,184 87.3 93.5 100.7 109.1 119 130.9 145.5 163.6 187 218.2 261.8 327.3 436.4 654.6 1309.2
34,000 116,008 92.7 99.4 107 115.9 126.5 139.1 154.6 173.9 198.7 231.8 278.2 347.7 463.7 695.5 1391
36,000 122,832 98.2 105.2 113.3 122.7 133.9 147.3 163.6 184.1 210.4 245.5 294.6 368.2 490.9 736.4 1472.8
38,000 129,656 103.6 111 119.6 129.6 141.3 155.5 172.7 194.3 222.1 259.1 310.9 388.7 518.2 777.3 1554.6
40,000 136,480 109.1 116.9 125.9 136.4 148.8 163.6 181.8 204.6 233.8 272.7 327.3 409.1 545.5 818.2 1636.5
42,000 143,304 114.6 122.7 132.2 143.2 156.2 171.8 190.9 214.8 245.5 286.4 343.7 429.6 572.8 859.1 1718.3
44,000 150,128 120 128.6 138.5 150 163.6 180 200 225 257.2 300 360 450 600 900 1800.1
46,000 156,952 125.5 134.4 144.8 156.8 171.1 188.2 209.1 235.2 268.8 313.7 376.4 470.5 627.3 941 1881.9
48,000 163,776 130.9 140.3 151.1 163.6 178.5 196.4 218.2 245.5 280.5 327.3 392.7 490.9 654.6 981.9 1963.7
50,000 170,600 136.4 146.1 157.4 170.5 186 204.6 227.3 255.7 292.2 340.9 409.1 511.4 681.9 1022.8 2045.6
52,000 177,424 141.8 152 163.6 177.3 193.4 212.7 236.4 265.9 303.9 354.6 425.5 531.8 709.1 1063.7 2127.4
54,000 184,248 147.3 157.8 169.9 184.1 200.8 220.9 245.5 276.2 315.6 368.2 441.8 552.3 736.4 1104.6 2209.2
56,000 191,072 152.7 163.6 176.2 190.9 208.3 229.1 254.6 286.4 327.3 381.8 458.2 572.8 763.7 1145.5 2291
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  • 10 Year Non-Pro-Rated tank warranty
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Commercial Heavy Duty Series Specific Questions

Without getting into a lengthy discourse on electricity, the simple answer is that any water heater internally wired in a 3 phase open delta configuration is unbalanced, meaning that the amperage drawn by one of the three legs is high and unequal to the other two legs. This unbalanced water heater can have a detrimental effect on a buildings power system and therefore needs to be carefully understood before you install a water heater configured for 3 phase open delta. It should be noted that the branch circuit protection (i.e. circuit breaker) servicing a 3 phase open delta water heater needs to be sized for the high amperage leg. The Hubbell model E is available up to a maximum of 12kw in 3 phase open delta wiring. Alternatively, the Hubbell model SE is a balanced 3 phase water heater, meaning that all three legs draw equal amperage. The Model SE is available up to 58kw click here details Model SE
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.
It depends.  The Uniform Plumbing Code (UPC), section 510.5 states In seismic zones 3 and 4 water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion. Strapping shall be at points within the upper one-third (1/3) and lower one-third (1/3) of its vertical dimensions. At the lower point a minimum of four (4) inches (102mm) shall be maintained above the controls with the strapping."  If the installed location is in these seismic zones then a strap/restraint system is required.  Otherwise please consult with a plumbing engineer to determine the proper installation method for your water 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.
Vaughn uses a blown-in polyurethane foam insulation for all cement lined water heaters and tanks up to 120 gallon capacity. This insulation has an R value of 7.2 per inch. Most Vaughn tanks have a minimum of 2 inches of insulation resulting in an R value of 14. Certain models are available either standard or as an option with 3 inch insulation and therefore have an R value of 21.
The water heater must be stored in the orientation of intended use (vertical, horizontal). The recommended ambient air temperature range is between 50 and 105 degree F and not exceeding 65% Rh. Under no conditions should the unit be subject to freezing temperatures. The unit is intended to be stored indoors, protected from the elements. Desiccant material should be inserted into the electric control panel and heating element terminal house (if applicable). Prolonged storage will require periodic inspection of desiccant. For cement lined tanks only, place approximately 10 gallons of water in the tank before closing and sealing all openings to ensure a humid atmosphere for the lining is maintained. Cap and seal all openings and tank tappings and/or flanges. Provide the necessary protection to ensure the tank and all accessories are protected from physical contact that could result in damage. Shrink wrapping or other suitable protective plastic may be applied to the exterior. Start up and installation guidelines must be followed, with particular attention to testing of the electric heating element.
The HydraStone lining provides guaranteed 100% coverage with a minimum thickness of 0.5” over all internal tank surfaces. In comparison, glass lining is approximately 0.005” thick and includes imperfections, pinholes and variation in coverage thickness resulting in portions of unprotected steel tank exposed to corrosion. In an attempt to compensate, glass lined tanks include a sacrificial anode in an effort to slow down the corrosion of the tank. HydraStone lined tanks on the other hand do not require an anode due to the integrity of the lining. As such, a cement lined tank will far outlast a glass lined tank.
Although we don’t advocate dropping our tanks, sometimes stuff happens. The Vaughn HydraStone lining is a minimum of 1/2" thick (100 times thicker than a glass lined tank) and is guaranteed to uniformly cover 100% of all internal tank surfaces. In essence, the Vaughn HydraStone lining is a tank within a tank and should have no problem withstanding the rigors of shipping and installation. A properly maintained Vaughn tank will last decades.
Legionella is the bacteria responsible for Legionnaire’s Disease, an acute bacterial infection of the lower respiratory tract. This bacterium was first identified in 1977 by the Centers for Disease Control. Pontiac Fever is a less severe, non-pneumonia, flu-like disease that is associated with and likely caused by Legionella bacteria.   Legionella is a fairly common water bacterium and has been found to exist widely in many surface water sources including lakes, rivers, streams and ponds.  It can also be found in ground water sources and some soils.   At the levels found in these naturally occurring sources it typically does not pose a threat to public health.  When the bacterium enters a domestic water system it can find an ideal host environment of warm water temperatures (105-115°F), stagnant water areas (isolated storage tanks and dead-end piping legs) and ample food sources (sediment, scale, deposits and biofilm). Under these conditions Legionella can rapidly colonize, forming higher concentrations that can pose the public health threat of Legionnaire’s Disease.    There are many methods of controlling colonization of Legionella bacteria; a widely accepted and preferred method is to maintain the hot water system storage temperature continually at or above 140°F.  Unfortunately, the elevated temperature necessary to minimize the growth of and kill Legionella bacteria has the potential to cause serious thermal shock and scalding injuries.  As such, many plumbing engineers will specify that the water heater be set to maintain water temperatures at 140°F or higher to reduce the risk of Legionella, but then specify the appropriate mixing valve to ensure safe delivery of hot water to the fixtures.  For a more thorough discussion of Legionella please go to here and the following link to the US Department of Labor OSHA information regarding Legionnaires’ Disease OSHA here
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.
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