Commercial Grocery Store 17,100 Sq footage, Sherman Oaks, CA
Opportunity:
Aged mechanical equipment well beyond useful life
One R448A rack with an air-cooled condenser
Field fabricated evaporative spray cooling system to maintain operation during higher temperature summer periods
System controls not up to customer standards
Existing rack system charge size required compliance quarterly leak checks, extensive record keeping, and annual reporting
Location of a new rack and condenser
Design/Build Retrofit Solution:
Collaboration between customer, engineer, and manufacturer to develop an 8 systems remote outdoor rack with all appliances within the 50 lbs and under EPA threshold
Utilizing existing cases, engineering selected systems for each compressor suction group to ensure we remained under this 50lbs threshold
Design piping layout to effectively achieve under 50lbs charge goals
System designed to utilize the existing refrigerant R448A
New sensors installed in all cases to ensure proper monitoring for food safety
SEER2 Value Delivered:
Energy carbon footprint reduction
Refrigerant loss reduction potential to systems critically charged design
Implemented automatic leak detection systems
Achieved goal to maintain each system under 50 pounds of R448A requiring
No quarterly leak checks, record keeping, or reporting
Single system startups resulted in minimal impact to store operations
Adiabatic Fluid Cooler energy efficiencies achieved during summer months
Floating suction groups for each system achieved through digital unloading
Utilized only socially responsible refrigerants
