Capacity: Large, around 400-420 liters in many similar “DD” chest freezers. (FC-55DD is 420 L)
• Cooling Type: Usually direct cooling; manual defrosting is typical.
• Refrigerant: Eco-friendly gas, e.g. R600a in many Hisense chest freezers.
• Fast Freeze / Deep Freeze Capability: A “fast freeze” or “quick freeze” function appears often — helps lock in freshness when large volumes are loaded.