6kW - 54kW Electric Booster Commercial Water Heaters
Brand: Rheem RUUD
Product Overview
Rheem-Ruud Electric Booster Water Heaters are engineered for commercial environments, specifically designed to fit under counters and deliver 180°F sanitizing rinse water for stationary rack and conveyor type commercial dishwashers. These units can also serve as circulating tank commercial electric water heaters for gravity or pump circulation to an auxiliary storage tank. They are capable of raising preheated or cold water to the required 180°F rinse temperature, ensuring compliance with UL Sanitation (NSF5) and various Federal, State, County, and Local Health Department Sanitation Codes.
Capacity: 10 Gallon
Available Models: 6kW through 54kW
Voltages: 208V, 240V, 277V, 480V
Thermostat Type: Immersion
Construction Features
- System Sentinel: Features an element diagnostic panel with light-emitting diodes (LEDs) that correspond to the number and location of each heating element. LEDs illuminate when elements are operating, and an unlit LED helps pinpoint non-functioning elements for easy diagnosis.
- Long Life Tank Design: Utilizes a proprietary steel formulation with a high-temperature porcelain enamel coating for maximum corrosion resistance, ensuring a durable tank.
- Long Life Heating Elements: Employs separate screw-in type elements with Nichrome wire filaments embedded in magnesium oxide, sealed in a copper tube to resist water chemical corrosion. These elements are directly immersed for 98% recovery efficiency and are easily replaceable.
Certifications and Ratings
- Efficiency: Meets or exceeds current ASHRAE standards for thermal efficiency and standby loss, aligning with the Energy Policy Act (EPact) and exceeding energy efficiency codes from states like California (CEC).
- Safety and Construction: Design certified by Underwriters Laboratories (UL) to meet UL standard 1453 for electric booster and commercial storage tank water heaters. All models are UL Sanitation (NSF5) compliant and meet North Carolina Code requirements.
- Pressure Rating: Certified for a 150 PSI maximum working pressure.
Electrical Characteristics
| INPUT KW | NUMBER OF ELEMENTS | ELEMENT WATTAGE | 208V Phase | 240V Phase | 277V Phase | 480V Phase | Number of Contactors | Number of Fuses | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 1 | 3 | 1 | 3 | 1 | 3 | |||||
| 6 | 3 | 2000 | 29 | 17 | 25 | 14 | 22 | 13 | 7 | 2 | 6 | |
| 9 | 3 | 3000 | 43 | 25 | 38 | 22 | 33 | 19 | 11 | 2 | 6 | |
| 12 | 3 | 4000 | 58 | 33 | 50 | 29 | 43 | 25 | 15 | 2 | 6 | |
| 15 | 3 | 5000 | 72 | 42 | 63 | 36 | 54 | 31 | 18 | 2 | 6 | |
| 18 | 3 | 6000 | 75 | 43 | 65 | 38 | 22 | 2 | 6 | |||
| 18 | 6 | 3000 | 87 | 50 | 4 | 12 | ||||||
| 24 | 6 | 4000 | 116 | 67 | 100 | 58 | 87 | 50 | 29 | 4 | 12 | |
| 27 | 6 | 4500 | 130 | 75 | 113 | 65 | 98 | 56 | 33 | 4 | 12 | |
| 30 | 6 | 5000 | 144 | 84 | 125 | 73 | 108 | 63 | 36 | 4 | 12 | |
| 36 | 6 | 6000 | 150 | 87 | 130 | 75 | 43 | 4 | 12 | |||
| 36 | 9 | 4000 | 173 | 100 | 6 | 18 | ||||||
| 45 | 9 | 5000 | 217 | 125 | 188 | 109 | 163 | 94 | 54 | 6 | 18 | |
| 54 | 9 | 6000 | 260 | 150 | 225 | 130 | 195 | 113 | 65 | 6 | 18 | |
Fuse Type: The "G" in the model number signifies Class G fuses.
Fuseless Construction: Standard models not exceeding 48 Amps can be ordered without element fuses by adding "N" to the model number (e.g., E10-9-G becomes E10-9-GN).
Approximate Shipping Weight: 110 lbs. / 50 kgs.
Recovery Capacities
Recovery in U.S. Gallons/Hr. (GPH) and Liters/Hr. (LPH) at Various Temperature Rises
| INPUT KW | EQUIVALENT BTU/HR. | UNITS | 40°F (22°C) | 50°F (28°C) | 60°F (33°C) | 70°F (39°C) | 80°F (45°C) | 90°F (50°C) | 100°F (56°C) | 110°F (61°C) | 120°F (67°C) | 130°F (72°C) | 140°F (78°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | 20,473 | GPH | 62 | 50 | 41 | 35 | 31 | 28 | 25 | 23 | 21 | 19 | 18 |
| LPH | 235 | 188 | 157 | 134 | 117 | 104 | 94 | 85 | 78 | 72 | 67 | ||
| 9 | 30,710 | GPH | 93 | 74 | 62 | 53 | 47 | 41 | 37 | 34 | 31 | 29 | 27 |
| LPH | 352 | 282 | 235 | 201 | 176 | 157 | 141 | 128 | 117 | 108 | 101 | ||
| 12 | 40,946 | GPH | 124 | 99 | 83 | 71 | 62 | 55 | 50 | 45 | 41 | 38 | 35 |
| LPH | 470 | 376 | 313 | 268 | 235 | 209 | 188 | 171 | 157 | 145 | 134 | ||
| 15 | 51,183 | GPH | 155 | 124 | 103 | 89 | 78 | 69 | 62 | 56 | 52 | 48 | 44 |
| LPH | 587 | 470 | 391 | 335 | 294 | 261 | 235 | 213 | 196 | 181 | 168 | ||
| 18 | 61,420 | GPH | 186 | 149 | 124 | 106 | 93 | 83 | 74 | 68 | 62 | 57 | 53 |
| LPH | 705 | 564 | 470 | 403 | 352 | 313 | 282 | 256 | 235 | 217 | 201 | ||
| 24 | 81,893 | GPH | 248 | 199 | 165 | 142 | 124 | 110 | 99 | 90 | 83 | 76 | 71 |
| LPH | 939 | 751 | 626 | 537 | 470 | 417 | 376 | 342 | 313 | 289 | 268 | ||
| 27 | 92,129 | GPH | 279 | 223 | 186 | 160 | 140 | 124 | 112 | 102 | 93 | 86 | 80 |
| LPH | 1057 | 845 | 705 | 604 | 548 | 470 | 423 | 384 | 352 | 325 | 302 | ||
| 30 | 102,366 | GPH | 310 | 248 | 207 | 177 | 155 | 138 | 124 | 113 | 103 | 95 | 89 |
| LPH | 1174 | 939 | 783 | 671 | 587 | 522 | 470 | 427 | 391 | 361 | 335 | ||
| 36 | 122,839 | GPH | 372 | 298 | 248 | 213 | 186 | 165 | 149 | 135 | 124 | 115 | 106 |
| LPH | 1409 | 1127 | 939 | 805 | 705 | 626 | 564 | 512 | 470 | 434 | 403 | ||
| 45 | 153,549 | GPH | 465 | 342 | 310 | 266 | 233 | 207 | 186 | 169 | 155 | 143 | 133 |
| LPH | 1761 | 1409 | 1174 | 1006 | 881 | 783 | 705 | 640 | 587 | 542 | 503 | ||
| 54 | 184,259 | GPH | 558 | 447 | 372 | 319 | 279 | 248 | 223 | 203 | 186 | 172 | 160 |
| LPH | 2114 | 1691 | 1409 | 1208 | 1057 | 939 | 845 | 769 | 705 | 650 | 604 |
Dimensions and Ratings
Diagram Description: The product diagram provides a visual representation of the water heater's physical dimensions and component layout. Key dimensions are indicated, such as width, height, and depth. Labeled components include the inlet and outlet connections, T&P (Temperature and Pressure) relief valve, transformer, terminal block, contactors, and fuse blocks. Optional thermostat controls are also noted for specific models.
UL Certification Marks: The document displays the Underwriters Laboratories (UL) certification mark, indicating that the product has undergone safety testing and meets established standards. These marks are typically displayed on products to assure consumers of their safety and compliance.
| Model Number | Tank Capacity | Thermostat Type | Minimum Delivered Temperature | Maximum Delivered Temperature | High Temperature Limit |
|---|---|---|---|---|---|
| E10 | 10 Gal. / 38L | Immersion | 90°F / 32.2°C | 190°F / 87.8°C | 200°F / 93.3°C |
Other Features
- Integral Fusing: All models feature integral fusing for each heating element.
- Anode Rods: Equipped with two (2) magnesium anode rods for enhanced tank corrosion resistance.
- Temperature and Pressure Relief Valve: AGA/ASME rated and factory installed for safety.
- Electrical Connections: Pre-wired, accessible control box with multiple knock-outs (1/2" to 2") to match National Electric Code requirements. Includes a grounding screw for equipment grounding conductors.
- Single Panel Control Box: Features a hinged stainless steel door for easy access to all electrical components and elements.
- Terminal Block: All models include UL Listed terminal blocks for simplified installation, accommodating either copper or aluminum field connect wire.
- 120 Volt Control Circuit: Units are supplied with a fused 120-volt control circuit, powered by an internal multi-tap transformer that supports primary voltages of 208V, 240V, 277V, and 480V.
- Water Connections: Features 1-1/4" NPT dielectric nipples for hot outlet and cold inlet, designed to minimize turbulence and optimize tank draw.
- Heavy Insulation: An effective blanket of insulation surrounds the tanks to minimize heat loss and ensure high operating efficiency.
- Stainless Steel Legs: Each unit is provided with 6-inch stainless steel legs.
Recommended Specifications
Water heater(s) shall be model ________________, manufactured by RHEEM-RUUD, having electrical input of __________ kW and a recovery rate of _____________ GPH at a 100°F temperature rise. Water heater(s) shall have a storage capacity of 10 gallons. Water heater(s) shall have the UL seal of certification and be factory equipped with an AGA/ASME rated temperature and pressure relief valve. Tank(s) shall have a unique coating of high temperature porcelain enamel and furnished with magnesium anode rods rigidly supported. Water heater(s) shall meet or exceed the efficiency requirements of ASHRAE. Tank(s) shall have a working pressure rating of 150 psi, and shall be completely assembled. Water heater(s) shall be approve-listed and constructed in accordance with UL Sanitation (NSF5). Water heater(s) shall be equipped with “screw-in” type elements. Water heater(s) shall be constructed with a SYSTEM SENTINEL element diagnostic panel utilizing light emitting diodes. Each LED will correspond to the number and location of the heating elements and monitor their on-off function. Water heater(s) shall be provided with internal power circuit fusing, control circuit fusing, magnetic contactors, 120 volt control circuit transformer and immersion thermostat(s) with manual reset high limit control. 1-1/4" inlet and outlet water connections shall be provided. Water heater(s) shall be covered by a three year limited warranty against tank leaks.
