US Project Case: Cold Storage Room (-20℃)

Core Design Parameters

1. Cold room internal dimensions: 8.5 m (L) × 4 m (W) × 3 m (H)

2. Set storage temperature: ‑20℃ (low‑temperature freezing)

3. Power supply specification: 220V / 60Hz (US standard)

4. Application scenario: Commercial food freezing and goods low‑temperature warehousing & turnover

Complete Equipment & Main Material Configuration

1. Refrigeration Unit System

Two customized 4HP compressor units are adopted, specially adapted for 220V/60Hz North‑American power supply. The units are tuned for high‑frequency operation to resolve compatibility issues with overseas power supply. They feature strong low‑temperature startup performance, and can run continuously and stably at ‑20℃ with high heat‑dissipation efficiency and low failure rate. The units support 24‑hour constant‑temperature refrigeration, maintain stable indoor temperature, and prevent product frostbite or deterioration.

2. Cold Room Door

A manual sliding door of 1250 W × 2500 H is installed. The door panel is made of high‑density polyurethane insulation material with excellent thermal insulation performance. It opens and closes smoothly with lightweight sliding movement. The low‑temperature‑resistant and anti‑aging sealing gaskets will not harden or deform under ‑20℃ conditions. It effectively blocks heat‑cold air exchange between inside and outside, reduces cold loss and improves overall thermal insulation for frequent goods‑in‑and‑out operations.

3. Air Curtain

A 1500 mm long Theodo air curtain is mounted above the door, well‑matched with the door size. When in operation, it forms a stable air barrier. While the door is open, it blocks hot and humid ambient air from entering the cold room, prevents frost and ice formation inside, reduces refrigeration load, improves temperature stability, lowers energy consumption and extends service life of refrigeration equipment.

4. Floor Construction

The entire floor is covered with embossed aluminum plate, a dedicated material for low‑temperature cold storage. It is sturdy, load‑bearing, low‑temperature‑resistant and corrosion‑resistant without cracking, suitable for heavy‑duty goods stacking and trolley turnover. The embossed anti‑slip surface prevents slipping caused by frost at low temperatures, ensuring operator safety. It is waterproof, moisture‑proof, easy‑to‑clean with no sanitary dead corners, complying with overseas commercial warehousing hygiene requirements.

5. Electrical & Auxiliary Materials

The package includes cold‑storage‑specific explosion‑proof moisture‑resistant lights, wires, cables and full‑set installation accessories. All electrical components are compatible with US 220V/60Hz power system and tested for low‑temperature weather resistance. They operate steadily in humid and low‑temperature cold‑storage environments with waterproof, short‑circuit‑proof and leakage‑proof performance. Complete and well‑matched installation accessories guarantee installation accuracy, structural stability, and avoid cold‑leakage and loosening issues in later use.

Project Construction Standards

1. Overseas‑condition adaptation: All refrigeration and electrical equipment is specially adjusted to fit US 220V/60Hz power supply, eliminating the need for extra transformers or circuit modification.

2. High‑grade thermal insulation & sealing: Four‑layer protection including panel insulation, door sealing, air‑curtain thermal isolation and floor moisture‑proofing to minimize cold loss and maintain stable ‑20℃ temperature.

3. Safety‑compliant construction: Standardized electrical wiring and complete low‑temperature protection, complying with US commercial warehousing safety acceptance standards.

4. Durable & easy‑to‑maintain: Simple‑structure equipment with low failure rate, convenient for inspection and maintenance, suitable for low‑cost operation and maintenance for overseas clients.

Project Advantages

1. Precise temperature control: Dual 4HP customized compressor units provide sufficient cooling capacity to keep stable ‑20℃ freezing environment for long‑term storage of various low‑temperature goods.

2. North‑America‑optimized design: The whole system is customized for US power conditions, ready‑for‑installation without additional transformers or circuit modification.

3. Energy‑saving performance: The air curtain blocks hot air together with high‑quality insulation structure, greatly reducing unit load and cutting long‑term energy consumption.

4. Safety & durability: Anti‑slip aluminum floor, explosion‑proof lighting and reliable electrical system, balancing practicality and safety for long‑term high‑frequency commercial use.

Project Conclusion

This US ‑20℃ low‑temperature cold‑storage project is custom‑designed according to the client’s practical application and overseas power‑supply conditions. From compressor parameters, door configuration, air‑curtain matching, floor material to electrical accessories, the full set of configurations conforms to North‑American commercial cold‑storage standards. After completion, the cold room delivers stable temperature control, low energy consumption and good durability, satisfying the client’s low‑temperature warehousing demand. The equipment runs in good condition and is highly recognized by the overseas client. It serves as a typical successful case for small‑to‑medium‑size commercial freezing warehousing in the United States.