First Hill PHOENIX Advansor transcritical CO2 system in North America

By Janaina Topley Lira, Aug 08, 2012, 13:06 4 minute reading

When Overwaitea Food Group (OFG) chose The Village on False Creek as the location for its newest Urban Fare Express, OFG set a benchmark for green retail practices by installing a Hill PHOENIX Advansor transcritical CO2 booster refrigeration system. This is the first Hill PHOENIX Advansor transcritical CO2 booster refrigeration system installed in North America.

OFG, a leader in retail sustainability, began experimenting with CO2 refrigeration systems in 2010, having already established aggressive goals for green operations in every area of its business. Today, the Urban Fare Express is one of only a handful of HFC (hydrofluorocarbons)-free grocery stores in Canada. 
“We chose a transcritical CO2 booster system because it’s 100 percent HFC-free,” said Ralph Thiel, director, store planning & construction for Overwaitea Food Group LP. “We’ve seen a number of synthetic refrigerants phased out over the years, and with its high global warming potential, we expect that eventually the current HFC’s will be phased out, too. CO2 transitions us to a natural refrigerant that we can live with in the future.”
Hill PHOENIX Advansor Transcritical CO2 Booster System Advantages
The advantages of the Hill PHOENIX Advansor transcritical system include:
  • The Advansor transcritical CO2 booster system utilizes CO2 as the only refrigerant covering both medium-temp and low-temp loads; 
  • CO2 has a high temperature heat of rejection, making it ideal for hot water heat reclamation applications and efficient hot gas defrosting;
  • CO2 systems operate under much higher pressures than conventional HFC-based systems. Many CO2 systems require steel piping throughout and carry a higher risk of pressure-related system breakdowns. The Advansor system eliminates those concerns by perfecting the use of pressure reducing valves so that everything inside of the store operates under lower pressure, as it would with an HFC-based system. Contractors can use copper piping and retailers can rest easy knowing that their Advansor system maintains pressures within a range normally found in traditional DX systems. OFG’s Urban Fare Express has a back-up auxiliary condensing unit on a back-up generator in case of power failure. The smaller condensing unit cools the CO2 and keeps the pressure low to prevent the loss of CO2;
  • Hill PHOENIX R&D capabilities ensure that CO2 technology is a viable option for every merchandising configuration. From walk-ins to custom specialty cases, Advansor technology is available across all Hill PHOENIX product lines;
  • CO2 is a much less expensive (less than $2 per lb. compared to $20 per lb. or €1.6 per 0.45kg compared to €16 per 0.45kg) alternative to HFC refrigerants.
Retrofitting challenges become green opportunities
Construction of the 23,000 sq.ft (2137 m2) Urban Fare Express entailed retrofitting a former Olympic Village structure to accommodate a grocery store and all of its associated systems. One particular challenge included putting the gas cooler in the parkade. Such a configuration had to include special sound attenuating mufflers and ducts to move hot air outside of the garage structure.
Smart technologies help to reduce energy consumption
In addition to its move toward CO2, many OFG stores feature a variety of smart technologies designed to reduce energy consumption, including:
  • High-efficiency lighting with motion sensors in freezer cases
  • Energy reduced refrigeration systems
  • Energy efficient freezer doors
  • High-efficiency, programmable deli and bakery ovens
  • Waste-heat recovery systems
  • Building automation systems that adjust lighting, heating and air conditioning as needed
“Recycling, sustainable seafood, reusable bags, energy-efficient stores and our efforts to be the number one supporter of local products and producers are just some of the ways we show our commitment to sustainability every day,” said Carmen Churcott, vice-president, OFG.
About Overwaitea Food Group
The Overwaitea Food Group is a leading retail grocery chain in British Columbia and Alberta. OFG currently operates more than 124 stores under the Save-On-Foods, Overwaitea Foods, Cooper’s Foods, Urban Fare, PriceSmart Foods and Bulkley Valley Wholesale banners and employs more than 13,000 team members.
About Hill PHOENIX and Advansor
Hill PHOENIX Inc., a Dover Company, is based in Conyers, Ga. The company designs and manufactures commercial refrigerated display cases and specialty products, refrigeration systems, integrated power distribution systems and walk-in coolers and freezers. 
Hill PHOENIX acquired Denmark-based Advansor A/S in 2011. The Danish company specializes in the design and manufacture of HFC-free, CO2 transcritical booster refrigeration and heat pump systems for supermarkets and light industrial applications. Advansor and Hill PHOENIX combined have more than 600 CO2 systems operating in supermarkets in the United States, Europe and Canada, making them the most experienced manufacturer of CO2 refrigeration systems in the world.

Hill Phoenix's contact information
If you would like to contact Hill Phoenix for any enquiries, you may send a request to Hill PHOENIX directly.


By Janaina Topley Lira

Aug 08, 2012, 13:06

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