PRSM 2012 Best Practices - (Page 136)

TESTiNg hvAC SySTEM OPTiONS TO rEduCE COSTS ANd LABOr AUTHOR thomas rumpler, director, national Accounts COMPANY camfil Farr chAllenge: Escalating costs and increasing competition caused a major consumer pet supply retailer to take a close look at store maintenance. During a time of continuously rising energy costs, the pet supply retailer decided to investigate the total operating cost of its HVAC system. With more than 1,100 stores, the retailer’s facilities management was spending more than $800,000 in labor and air filters annually on the filter program. The challenge for the retailer was to maintain store airflow because of growing energy cost, to maintain cooling coil and component cleanliness and to reduce the cost of the filter program. best PrActice: Faced with escalating expenses, the consumer pet supply retailer understood its business needed effective filtration, but realized it needed to be done at a reduced cost. The stores required a clean air solution that would maintain airflow, reduce air filter life cycle costs and reduce maintenance costs. As a result, side-by-side filter tests were conducted as specified in ASHRAE Standard 52.2-1999. Three different filters were tested: a competitive highcapacity pleated filter with wire backing, the retailer’s current standard-capacity unsupported pleated filter, and a proprietary MERV 8 pleated panel filter. results: The test results proved that the retailer could reduce filter changes from four cycles per year to two cycles per year by converting to use of the pleated panel filters. Testing documented improvements of more than 30 percent in AHU air flow due to the lower average resistance of the specified pleated panel filter. By converting, the stores would save $3 per filter annually and reduce change-outs by 50 percent. The conversion would also mean significant reductions in filter costs, labor costs, waste and disposal costs. As a result of construction and design, the pleated panel filter lasts longer, catches more contaminates and operates at lower average resistances. A unique media fold design equally balances filter loading and provides more filter media surface area. A sturdier frame structure and media support provides greater rigidity. Proprietary media traps and holds more contaminates. Side-by-side tests found the pleated panel filter moved more air for almost the same amount of energy. Testing also demonstrated that the same filter had the rigidity to withstand high moisture conditions (rainy, high humidity). Every filter manufacturer claimed that its panel filters met rated efficiency in laboratory testing; however, visual inspection by the customer confirmed that the pleated panel filter product captured significantly more contaminants. In spite of appearing to be dirtier the filter maintained a low resistance to airflow. After six months of testing, the filter’s resistance to airflow was .20” wg under the suggested final resistance of .80”wg Neither of the opposing filters met the specified design static pressure without collapsing and gained pressure quickly (as much as 83 percent in three months), thus requiring early change out. VeriFicAtion oF sAVings Although the pleated panel filter product had a higher unit cost, filters were changed half as often and ran at a much lower resistance. This saved the chain $65,000 in labor and materials. The largest part of the savings will be in energy. Because the Pleated Filter Product pleated filter operated at a substantially lower resistance, fewer air changes will be required to heat and cool the stores. 136 | 2012 Best Practices http://www.prsm.com/bestpractices

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
Index.

PRSM 2012 Best Practices

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