Introduction
Choosing the right refrigeration system for your walk-in cooler or freezer is critical for restaurants, supermarkets, convenience stores, food processors, and cold-chain operators in the United States.
With strict UL and ETL safety requirements, many buyers struggle to find a cooling unit that is not only powerful and reliable, but also compliant with U.S. building codes.
This guide explains why ETL-certified monoblock refrigeration units are becoming the top choice in the U.S. market—and how they solve real pain points for American businesses.
1. What Problems Do U.S. Buyers Face with Walk-in Refrigeration?
Most American businesses experience the same issues with traditional cooling systems:
❌ Failing city inspections (no ETL/UL listing)
Non-certified units are often rejected by inspectors, delaying store opening or renovation.
❌ High installation cost
Split systems require HVAC technicians, welding, nitrogen flushing, vacuuming, and refrigerant charging.
❌ Unstable temperature
Fluctuations damage food safety, especially during peak hours.
❌ High electricity bills
Old systems consume excessive energy, costing restaurants thousands per year.
❌ Noise issues
Many cooling units are too loud for indoor installation.
❌ Frequent icing and compressor overheating
Poor airflow and weak defrosting cause maintenance headaches.
2. Why ETL-Certified Monoblock Units Solve These Problems
Modern monoblock systems provide a plug-and-play, pre-charged, and fully sealed design that eliminates most installation and maintenance issues.
✔ 100% ETL Listed for U.S. Code Compliance
Our monoblocks meet:
- UL 60335-2-89 (Commercial Refrigeration)
- UL 60335-1 (General Electrical Safety)
This ensures compatibility with:
- City inspection requirements
- Insurance approvals
- Restaurant compliance checks
✔ Fast Installation – No HVAC Technician Required
The unit mounts directly on the walk-in cooler wall:
- No refrigerant filling
- No nitrogen flushing
- No welding
- No vacuum pump needed
Installation time is typically 30–60 minutes.
✔ Precise Temperature Control (±1°C)
Equipped with a Dixell controller to maintain stable cooler (10°C–0°C) and freezer (–18°C to –22°C) temperatures.
✔ Energy-Efficient R290 Technology
Reduces electricity cost for restaurants and supermarkets.
✔ Quiet Operation for Indoor Use
Suitable for indoor kitchens, cafés, and grocery stores.
3. Recommended Applications for U.S. Businesses
Our monoblock refrigerators are ideal for:
- Walk-in coolers for restaurants
- Walk-in freezers for meat & seafood storage
- Ice cream and frozen dessert rooms
- Convenience store beer caves
- Food preparation cold rooms
- Ghost kitchens
- Food truck cold storage
- Commercial kitchens needing compact cooling
4. Why U.S. Customers Choose Our Monoblock
- ETL certified (pass inspection easily)
- Cooler + freezer in one unit (10°C to –22°C)
- Plug-and-play design saves installation costs
- Lower electricity bills
- Faster cooling and high reliability
- Front-access maintenance structure
Conclusion
For restaurants, supermarkets, and cold storage operators in the United States, an ETL-certified monoblock refrigeration unit offers the most efficient and cost-effective solution for walk-in coolers and freezers.
If your business needs reliable cooling, easy installation, and U.S.-approved certification, a monoblock is the best choice for 2025 and beyond.
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