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WV Pollution Prevention (P2) Program

Use Secondary Refrigeration System

Using a secondary refrigeration system significantly reduces the amount of harmful primary refrigerants, such as ammonia and Freon gas, in a plant by approximately 80%. This minimizes the risk of contamination and hazardous situations caused by these refrigerants. While ammonia usage as a refrigerant is a positive step towards reducing ozone-depleting refrigerants, it poses a life-threatening risk to employees, particularly in the food and beverage industry, where it can contaminate food products.

In a secondary refrigeration system, the primary refrigerant is confined to the machine room and condensers, while the secondary refrigerant is circulated throughout the facility. This isolation of the primary refrigerant, which poses a greater environmental and occupational hazard, reduces the likelihood of leaks, associated safety hazards, and food contamination. Moreover, industries that implement secondary refrigeration systems using refrigerants like glycol experience lower recharging costs and enhanced safety.

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