To compete with e-retail giants, many supermarket retailers are forgoing new store investments, instead formalizing their own e-commerce initiatives to better re-align their businesses. But the problem of aging equipment infrastructure remains, and significant upgrades are typically required to move away from high-GWP gases like R-22 and R-404A. Meanwhile, food safety regulations, leak detection requirements, rising energy costs and the expenses of maintaining aging systems are all adding to the upgrade imperative. In this timely session, Andre will detail the basic steps involved in upgrading an existing refrigeration infrastructure: 1) determine the status of the current system by establishing a baseline weather-normalized energy profile; 2) recommission the system to original factory specifications by making setpoint adjustments and fixing items; 3) perform necessary technology upgrades such as digital compression and variable frequency drives (VFD) on condenser fan motors to float head pressure, etc.; 4) implement HVAC demand controls ventilation upgrades; 5) integrate a rooftop unit (RTU) with the refrigeration system to optimize energy; 6) perform energy-saving upgrades like adding doors to cases, electronic expansion valves (EEV) and case controls, etc.; and 7) utilize condition-based maintenance (continuous commissioning) programs.
Presenter: Andre Patenaude, Director, Food Retail Marketing and Growth Strategy, Cold Chain, Emerson