Earn LEED® EBOM Points Using Watertech's eController

In today's economic and social environment, it's imperative to seek new ways to reduce costs, minimize environmental impact, and move towards sustainability. Reduction of water and chemical use is a priority for most facilities and LEED certification is a priority for many facility managers. Watertech's eController can help accomplish these goals through the use of its specialized control algorithms, integrated communications, and data handling features.

Achieve sustainability through:

• Water Conservation
• Chemical Reduction
• Energy Conservation

Available LEED EBOM Credits include:

• WE Credits 1.1 and 1.2 (1-2 points)
• WE Credits 4.1 - 4.2 (1-2 points) 

Optimize your cooling tower water-recycling program by monitoring, delivering and maintaining maximum cycles of concentration. Remote monitoring and operations incorporating Watertech's ppm algorithm provides reduced chemical feed, conservation of water, and optimized energy efficiency.

Watertech's eController features include:

• The ability to achieve optimum cycles of concentration through continuous water recycling while maintaining clean heat transfer surfaces to maximize energy efficiency - regardless of the makeup water quality.
• LEED EBOM compliance is derived through Watertech's eController with real time remote measurement and verification.
• Specified ranges of compliance are maintained through instantaneous alerts.
• Sustainable operations and troubleshooting are facilitated through data logging and trending.
• Watertech's part per million (ppm) algorithm controls chemical injection to the cooling tower recycled water to preserve heat transfer and reduce corrosion potential with minimal chemical usage.
• The algorithm maintains a programmed level of residual chemical based on the specific aspects of the makeup water as well as cycles of concentration.

Ongoing operations with Watertech's eController include the ability to:

• Optimize cycles of concentration
• Optimize conservation of chemicals and minimization of chemical overfeed
• Optimize heat transfer surfaces for maximum heat transfer and ultimate energy efficiency

LEED EBOM CREDITS

Water Performance Measurement

Watertech's eController is available with up to twelve digital (discrete) inputs and eight analog inputs for monitoring, data logging, and reporting on a wide range of external devices.

WE Credits 1.1 and 1.2 SCORE (1-2 points)
WE Credit 1.1 (1 point) Metering:

Have in place permanently installed water meters that measures the total potable water use for the entire building and associated grounds. Meter data must be recorded on a regular basis and compiled into monthly and annual summaries. Applicants are also encouraged to meter gray water or reclaimed water supplied to the building.

WE Credit 1.2 (1 point) Sub Metering:

Meet the requirements for WE Credit 1.1 and have in place permanently installed metering for

one or more of the following water subsystems:

1. Cooling Tower Water Management 
   WE Credits 4.1 - 4.2
   WE Credit 4.1 (1 point): Chemical Management:
   Develop and implement a water management plan for the cooling tower that addresses chemical treatment, bleed off, biological control and staff training as it relates to cooling tower maintenance. Improve water efficiency by installing and/or maintaining a conductivity meter and automatic controls to adjust the bleed rate and maintain proper concentration at all times.
   
   WE Credit 4.2 (1 point): Non-potable Water Source Use:
   Use make-up water that consists of at least 50% non-potable water, such as harvested rainwater, harvested storm water, air conditioner condensate, swimming pool filter backwash water, cooling tower blowdown, pass-through (once-through) cooling water, recycled treated waste water for toilet and urinal flushing, foundation drain water, municipally reclaimed water or any other appropriate on-site water source that is not naturally occurring groundwater or surface water. Have a measurement program in place that verifies makeup water quantities used from non-potable sources. Meters must be calibrated within the manufacturers recommended interval if the building owner, management organization or tenant owns the meter. 
   
   
2. Irrigation
   Meter water systems serving at least 80% of the irrigated landscape area on the grounds. The percentage of irrigated landscape area served must be calculated as the total metered irrigated landscape area divided by the total irrigated landscape area. All landscaping areas fully covered with xeriscaping or native vegetation that requires no routine irrigation must be excluded from the calculation entirely.
   
   
3. Indoor Plumbing Fixtures and Fittings
   Meter water systems serving at least 80% of the indoor plumbing fixtures and fittings described in WE Prerequisite 1, either directly or deducting all other measured water use from the measured total water consumption of the building and grounds.
   
   
4. Cooling Towers
   Meter replacement water use of all cooling towers serving the facility.
   
   
5. Domestic Hot Water
   Meter water use of at least 80% of the installed domestic hot water heating capacity.
   
   
6. Other Process Water
   Meter at least 80% of expected daily water consumption for process type end uses, such as humidification systems, dishwashers, clothes washers, pools, and other system.