PRSM 2012 Best Practices - (Page 53)

rECyCLiNg COOLiNg wATEr FrOM Air CONdiTiONiNg SySTEMS FOr TOiLET ANd LANdSCAPiNg uSE AUTHOR diane Voirin, delivery standards Manager COMPANY Johnson controls inc. chAllenge: At a client site in Beijing primarily used for manufacturing, four cooling towers are installed on the roof for heat exchange. Approximately 35 tons of cooling water is discharged each day from the air conditioning systems in the summer to control the conductivity and avoid the scaling of the indoor chiller. This results in high water consumption and wasted natural resources. best PrActice: The account team investigated the reuse of wastewater (gray water) from the cooling systems as an opportunity to reduce costs to the client. The project began by installing a conductivity sensor on the cooling water supply pipe, to detect the actual conductivity. Then the account installed a water drain pipe from the cooling system of the air conditioning systems to the existing water drain system which is connected to the grey water collection system. When the conductivity is above 1,800 parts per million (ppm), the drain valve on the cooling water drain pipe will open. An interlock was installed between the existing water treatment chemical dosing system and the water drain system to avoid chemical dosing when draining water. A water flow meter was installed to measure the volume of recycled water. All of this enabled the gray water from the air conditioning systems to be recycled and used to clean toilets and irrigate outdoor landscaping. results: For one building, the water consumption savings is around 6,500 tons per year, which is a 6.5 percent decrease. This savings was realized in the first year of project implementation, with an expected year-on-year savings estimated at $3,700 (USD). This is a great example of environmentally sustainable, energy efficient solutions that not only drive savings but are value-added activities that will no doubt improve customer satisfaction. Additionally, this best practice can be leveraged across the dispersed client portfolio, ranging from office space to manufacturing space for additional savings. VeriFicAtion oF eFFiciency And sAVings cAPtured: Before undertaking projects such as this, a multi-step verification process is followed. Each project is verified by the customer and the vendor’s finance manager. Throughout the course of the project, the account manager regularly updates the customer on the project status. At the end, the projected savings estimate is reconciled against the actual savings. After this step, final sign-off comes from the customer and the vendor’s finance manager. 2012 Best Practices | 53

Table of Contents for the Digital Edition of PRSM 2012 Best Practices

Conducting Multi-Site Paving Improvements to Ensure Continuity
Conducting Multi-Site Paving Improvements to Ensure Continuity
Exterior Rebranding
Exterior Rebranding
Getting the Most Value Out of Roof Management
Getting the Most Value Out of Roof Management
Pervious Concrete Pavement Solves Drainage Challenge
Pervious Concrete Pavement Solves Drainage Challenge
Pervious Pavement: Concrete Solutions to Driveway Stormwater Drainage and Sustainability Problems
Pervious Pavement: Concrete Solutions to Driveway Stormwater Drainage and Sustainability Problems
Applying Bipolar Ionization to Improve Indoor Air Quality and Save Energy
Determining Responsibility for Ceiling Leaks
HVAC Maintenance and Repairs Quote Review
Managing HVAC Energy Usage Without Installing an Energy Management System
Solving HVAC Issues on Landlord Operated Systems
Creating a Standardized Cleaning Chemical Program
Floor Replacement Planning and Execution
Improving Pest Control Monitoring to Maintain Store Cleanliness
Streamlining Store Cleaning Through Internal Benchmarking
LED Conversion Bolsters Ambiance, Bottom Line and Environment.
LED Gas Canopy Lighting Upgrade
Lighting Maintenance
Retrofitting Signage with LED Technology
Performing Basic Troubleshooting to Save Money
Implementing Repair Audits to Ensure Customer Safety
Improving Quality, Cost and Schedule Through Safety Education
Managing Extended Power Outages Through Emergency Response
Managing Risk Through Slip Resistance Testing
Creating Energy Teams to Pursue Opportunities
Formulating Green Solutions
Making Data Centers LEED Compliant
Outfitting Facilities with an Eye on ENERGY STAR Certification
Recycling Cooling Water From Air Conditioning Systems for Toilet and Landscaping Use
Sustainability-How the Facilities Team Can Contribute
Driving Down Waste Expense
Reducing Trash and Recycling Expense for Retail Locations
Transferring Compactor Maintenance to a Service Vendor
Waste Service Efficiency and Compliance
Waste Evaluation and Right Sizing to Reduce Cost
Asset and Service Warranty Tracking and Management: More Fully Realizing the Value of Budget Expenditures
Conducting an Organized Meeting
Proactive Maintenance Scheduling and Delivery
Repair Reductions by Participating in Design and Construction Table
Streamlining the Store Closing Process
Achieving Process Improvement Through Onsite Assessment of KPIs
Forecasting a Maintenance and Repair Budget
How to Calculate Return on Investment
Tracking Finances for Facilities
Centralizing Vendor Training and Management
Creating a Service Vendor Call Center to Save End Users’ Money
Answering a Call Status Challenge with an IVR Solution
Communicating Product Recalls Using a CMMS-Inspired Module
Doing More with Less and Saving Money in the Process
Ensuring the Accuracy of Web-Based Maintenance Requests
Establishing an End to End Procure-to-Pay Process
Leveraging Existing Technologies to Provide Updated Process Improvements
Quality Management of Bundled Periodic Services
Reduced Dashboard Time at Supply Houses
Parking Lot Management
Creating Best-In-Class Snow and Ice Management White Paper
Energy Savings/HVAC Air Filter Bypass
Managing a Retail Lighting Retrofit Project – Bright Ways to Improve Your Lighting and Your Bottom Line!
Managing Energy Usage with Interval Meter Calibration
Navigating the Department of Energy’s Higher Efficiency Regulations
Supplier Insights into Competitive Sourcing White Paper
Testing HVAC System Options to Reduce Costs and Labor
Understanding Retail Facilities Sourcing White Paper
Glossary of Acronyms and Terms

PRSM 2012 Best Practices