Cambridge Massachusetts has outlined a framework to be an emission neutral city by 2050. The Cambridge Net Zero Action Plan is a 25-year plan which envisions energy-efficient upgrades, renewable energy production and potentially the purchase of carbon offsets and credits. On their way to meeting this goal, the city recently unveiled the first net-zero emissions Read more
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Cambridge Massachusetts has outlined a framework to be an emission neutral city by 2050. The Cambridge Net Zero Action Plan is a 25-year plan which envisions energy-efficient upgrades, renewable energy production and potentially the purchase of carbon offsets and credits.
On their way to meeting this goal, the city recently unveiled the first net-zero emissions school in Massachusetts and the largest net-zero emissions building in the state: King Open and Cambridge Street Upper School campus. The campus includes an elementary school and middle school, school district offices, a public library branch, a community swimming pool, and preschool and after-school programs. The buildings are the first project under the Net-Zero Cambridge Plan and account for 273,000 sq. ft. and sit on four acres.
LavAdvantage
Eemax installed 150 LavAdvantage tankless electric water heaters, 10 Three Phase units and three SafeAdvantage units throughout the campus. Eemax products support specifications ranging from 1.8 kW to 150 kW, and flow rates from 0.2 GPM to 30 GPM. They installed the following on this campus:
- LavAdvantage: 150 units’ support handwashing in every classroom and restroom. They feature active energy management, power modulating controls, and a small, compact design also suitable for ADA compliant facilities. LavAdvantage provides safe, hot water on demand, while reducing energy and water waste.
- SafeAdvantage: 3 units provide tepid water for eye and facewash safety equipment in school laboratories. In schools, this tankless electric water heater can be found in chemistry and biology labs where an eyewash, facewash, and/or drench shower is required. SafeAdvantage features Parabolic Heat Design technology and is designed for low duty cycle applications where precise temperature control and low pressure drop are required.
- Three Phase: 10 units provide endless hot water to support janitorial services throughout the campus. Three Phase water heaters can support capabilities up to 5 GPM and deliver a temperature range from ambient to 180 degrees Fahrenheit. Each unit is thermostatically controlled, and features Self-Modulating Technology, which provides precise outlet temperatures.
“This new LEED Platinum facility and complex proves Massachusetts’ unwavering commitment to ensuring the Cambridge community will have a clean and green facility for their students as well as the neighboring families,” said Jens Bolleyer, vice president & general manager, Eemax. “We are proud to be a sponsor, as well as a solution, supporting zero emission goals and providing safe and consistent hot water with our LavAdvantage and SafeAdvantage products.”
Roof-mounted PV array will generate an estimated 60% of energy on site.
Eemax tankless electric water heaters only consume energy when the water is turned on, and there is no water or energy waste waiting for hot water to reach the faucet. Another benefit of tankless electric water heating at the point-of-use is the elimination of recirculation loops and the energy waste (standby heat loss) generating 24/7 hot water that exists with traditional commercial boiler systems. In addition, as only one water line is necessary, a significant savings in material and labor can be realized during the construction phase. Tankless electric water heating is a zero-greenhouse gas emission solution. No venting is required as no fossil fuels are burned.
Project Details
- Units: This campus includes a middle school, an elementary school, a public library, and the administration offices for the school district
- Square Footage: 273,000
- Type of Construction: New
- Built for LEED v4 Schools Gold certifications
- Eemax tankless electric water heaters throughout the school and complex
- Roof-mounted PV array will generate an estimated 60% of energy on site
- Geothermal heat pump system provides radiant heating and cooling
- Rainwater reclamation system on site
Eemax® continues to lead the evolution of hot water and is now forging new frontiers with the launch of ProSeries XTP. Using breakthrough Adaptive Stability Technology™ comprised of AST-Flex Power and AST-Dynamic Power, the ProSeries XTP models provide eXact Thermal Performance in demanding conditions. ProSeries XTP is the ideal hot water solution for a variety of commercial and industrial Read more
Eemax® continues to lead the evolution of hot water and is now forging new frontiers with the launch of ProSeries XTP. Using breakthrough Adaptive Stability Technology™ comprised of AST-Flex Power and AST-Dynamic Power, the ProSeries XTP models provide eXact Thermal Performance in demanding conditions. ProSeries XTP is the ideal hot water solution for a variety of commercial and industrial applications that require water temperatures up to 180°F.
“At Eemax, we are consistently innovating and developing leading-edge tankless electric water heating technologies for our customers, their clients’ vital water heating needs, and how we can make these technologically advanced solutions easy to install, efficient, laser-precise, and energy-saving,” says Jens Bolleyer, Eemax® VP and General Manager. “Our Adaptive Stability Technology™ is truly a breakthrough, utilizing AST-Dynamic Power components to adjust to dynamic flow situations and using AST-Flex Power to adjust the power applied to individual elements in a staggered manner, temporarily misbalancing the power factor between elements, enabling faster time to temperature while minimizing over or undershoot. The result is a level of precision so vitally needed in commercial and industrial applications.”
The product family features Eemax Adaptive Stability Technology (AST) to assess the heater conditions and shift the unit operation to ensure a consistent and reliable output. This is accomplished with AST-Flex Power and AST-Dynamic Power AST-Smart Calibration. Flex Power technology adjusts the power applied to individual elements in a staggered manner; this temporarily shifts the power factor between elements. Dynamic Power technology adapts to variable flow situations by adjusting the power factor applied to all elements equally. AST-Flex Power and AST-Dynamic Power allows for a faster time-to-temperature and minimizes overshoot and undershoot. ProSeries XTP delivers unparalleled thermal performance and precision.
For simplified installation, ProSeries XTP units only require a single input water line, either hot or cold. The units are compact in size, allowing for a more flexible install without occupying valuable floor space. The fittings are common plumbing connections and all units come with a custom mounting bracket. Self-diagnostics with intelligent controls actively protect the heater in the installed environment. SafeStart™ technology engages upon start-up to help avoid dry-fire occurrence. Self-modulating technology saves energy and eliminates standby heat loss by activating the heater only on demand. The digital LED display provides an easily navigated user interface and communicates detailed system status, and operation feedback. Other premium performance features include robust copper heating elements and a stainless-steel heating chamber for corrosion resistance, efficiency, and durability.
Among the range of sizes available, Eemax ProSeries XTP models include:
Volts 208
Volts 480
Product Specifications
- Min. Operating Pressure: 35 PSI
- Max. Operating Pressure: 150 PSI
- Optimum Operating Pressure: 60 – 90 PSI
ProSeries XTP Overview:
- Comprised of 10 three-phase delta models
- 3 & 6 chamber configurations
- 16 kW to 54 kW models available
- NEMA cabinets & cabinet options available (same as PHD)
- 3/4″ NPT water connections
- NEMA UL approved
- Eemax Adaptive Stability Technology (AST)
ProSeries XTP Performance Features:
- Self-diagnostics with intelligent controls
- SafeStart™ engages upon startup to avoid dry-fire occurrence
- Flow activation at 0.5 GPM / 1.89 LPM across product line
- AST-Dynamic Power
- AST-Smart Calibration
- AST-Flex Power
- Digital 4-line, 20 character LED display with accessible user interface communicates system status and heater operation feedback
- Power modulating controls
- Control system activates only on demand
- High-temperature limit switch
- Custom mounting bracket
- Fittings suit common plumbing connections (3/4” NPT)
- Temperature consistency at +/- 1°F or +/- 0.6°C output
- Powered by 3PE Delta, capable of supporting 3PE Y & 3PE Delta power
- Only one input water line (cold or hot) needed for installation
- Tamper-resistant controls (hardware lockout)
- IP25-rated cover prevents water intrusion within the system
For more information visit www.eemax.com.