PRSM 2012 Best Practices - (Page 19)

MANAgiNg hvAC ENErgy uSAgE wiThOuT iNSTALLiNg AN ENErgy MANAgEMENT SySTEM AUTHOR robbie drake, store Maintenance Manager COMPANY the Pantry, inc. chAllenge: The Pantry began an initiative in 2010 to identify ways to reduce energy consumption at its sites and realized that the current method of HVAC control was an area that needed attention. An initial survey revealed some operations teams were adjusting the thermostats to extreme set-points and in some cases had multiple units operating at the same site against each other (one set on heat with a set-point of 90, and one on cool with a set-point of 60). The Pantry wasn’t prepared to install fully functional energy management systems at its 1,600-plus sites and was unsure of the effects of shutting down equipment in an attempt to shed load. The majority of the sites are considered “small box” in size and are heated and cooled by only one or two units. best PrActice: The Pantry implemented a project in early 2010 to install set-point limiting thermostats at all of its sites. These thermostats still allowed the store operations teams to have control of the temperatures inside the store, but they limited the set-points that the systems could be adjusted to. A very conservative low limit of 72 degrees was selected for the cooling set-point and 70 degrees the high limit for the heating set-point. This allowed the store environment to remain well within the levels of comfort and also reduced the possibility of multiple units in the same location operating in a counterproductive manner. The company negotiated with a supplier to purchase the thermostats directly and then chose five service vendors across its geographical footprint (13 states) to install them. The decision to split the installations between multiple vendors was based on the need to complete the project within a short time frame, specifically before the peak cooling season began. An informational memo was sent to all HVAC service providers detailing the protocol and the set-points so they wouldn’t be altered in the field. In addition, this information was added as a point for internal technicians to check while on-site for other work orders. results: Although other factors may have contributed to the change, such as weather, reduction in equipment, etc., an average reduction in energy usage of approximately 4000 kwh per site was recorded over the prior year which, depending on kwh costs, represents a possible average savings of $400 per site across a representative sample of stores during May, June, July and August. In some cases thermostats were relocated within the building to provide more accurate temperature sensing. While more difficult to quantify, a reduction in the number of HVAC service calls for units freezing up was also noticed. This may be attributed to the fact that the set-point could not be adjusted too low, which can cause units to freeze up from constant operation during cooler outdoor temperatures. While this solution may not provide the benefits of an energy management system, it allowed the company to accomplish its goal quickly. 2012 Best Practices | 19 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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