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Incentivizing Advanced RTU Control Retrofits

JC Penney: Variable Frequency Drive Retrofit Upgrade on Rooftop Units (RTUs) Case Study

JC Penney pursued a pilot program for RTU variable frequency drive (VFD) technology. Following the successful pilot program, JC Penney retrofitted 1,330 rooftop units in 130 stores with the VFD solution and reported saving $5 million and 48 million kWh, a 22% reduction from before the VFD retrofit.

RTU Measurement and Verification Guidance Fact Sheet

This fact sheet explains the variety of benefits from rooftop unit (RTU) replacements by validating energy and cost savings and other improvements through measurement and verification (M&V) methods.

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RTU Inventory Spreadsheet Guidance

Use the RTU Inventory Spreadsheet to gather basic information (i.e., number, size, age, condition, etc.) about your RTUs. Use the detailed fields to gather additional information (i.e., controls, usage patterns, features, etc.) for additional analysis of the RTUs identified for retrofit, replacement, or further analysis.

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Decision Tree for RTU Replacements or Retrofits Guidance

This decision tree guides the reader through the challenging task of determining how to manage existing rooftop units with easy to follow evaluation questions and links to additional resources for more information.

Advanced RTU Controller Specification Specification

This specification lists potential important features and best applications for advanced rooftop unit controllers.