General Questions

1) What is an IQF coil?‍

An IQF coil is a refrigeration component used in Individually Quick Freezing (IQF) systems, ensuring rapid freezing of green peas to maintain their freshness, texture, and nutritional value.

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2) How does an IQF coil work?‍

The coil cools and circulates air within the freezer, rapidly reducing the temperature of green peas to -18°C or lower in a short time, preventing the formation of large ice crystals.

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3) Why is IQF technology used for green peas?‍

IQF ensures that each pea remains separate instead of clumping together, preserving their shape, color, and taste.

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Technical Questions

4) What type of refrigerants are used in IQF coils?‍

Common refrigerants include Ammonia (NH3), CO2, or Freon-based refrigerants (R404A, R507, etc.), depending on the system design and environmental regulations.

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5) What is the ideal freezing time for green peas in an IQF system?‍

Typically, green peas freeze within 3 to 10 minutes, depending on the freezer type, air velocity, and coil efficiency.

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6) How do you prevent coil freezing or frost buildup?‍

Regular defrost cycles, proper airflow management, and using coil heaters or hot gas defrosting help prevent excessive frost buildup.

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Maintenance & Troubleshooting

7) How often should IQF coils be cleaned?‍

It is recommended to clean IQF coils weekly or biweekly, depending on the operating conditions, to remove ice, dirt, and food residue.

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8) What are common issues with IQF coils and how to fix them?

-Frost buildup: Ensure proper defrosting and air circulation.‍

-Reduced cooling efficiency: Check for refrigerant leaks and clean coils.‍

-Blocked airflow: Remove obstructions and clean air filters.

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9) How do you improve the efficiency of an IQF coil?‍

Ensure proper refrigerant charge, regular coil cleaning, optimize airflow, and maintain correct fan speeds.