Frost-free dual-temperature cooked food display case

Air-Cooled Frost-Free Dual-Temperature Deli Display Cabinet: Application · Maintenance · Quality · Energy-Saving Guide

I. Application Scenarios

The air-cooled frost-free dual-temperature deli display cabinet is suitable for catering and retail scenarios with strict temperature zoning requirements, including:

 Deli stores, marinated food shops, roasted meat shops

 Deli sections in convenience stores and supermarkets

 Central kitchens and catering centers

 Buffet restaurants and fast-food chains

It meets both high-temperature heat preservation and low-temperature fresh-keeping needs simultaneously, with common dual-temperature zones:

 High-temperature zone: 60–75℃ (heat preservation & display)

 Low-temperature zone: 0–10℃ (fresh-keeping & storage)

Ideal for displaying marinated food, roasted meat, fried chicken, cold dishes, semi-finished ingredients, etc.

II. Daily Maintenance Tips

1. Cleaning

 Wipe glass doors, cabinet body and air outlets with neutral detergent daily

 Clean condenser filter weekly to avoid dust accumulation affecting heat dissipation

 Clear air ducts and evaporators monthly to ensure smooth air-cooled circulation

2. Temperature Management

 Do not adjust temperature frequently to avoid heavy-load operation of compressor

 Keep high-temperature zone above 60℃ and low-temperature zone below 10℃

 Do not block air outlets with food to ensure air circulation

3. Door Body & Sealing

 Check if door gaskets are aged or deformed

 Poor sealing will increase energy consumption by over 20%

 Foggy glass may result from improper temperature difference or faulty door gaskets

4. Placement

 Leave at least 10–15cm heat dissipation space behind the cabinet

 Avoid direct sunlight and proximity to heat sources like stoves and ovens

 Do not pile debris on cabinet top to prevent heat dissipation issues

III. Quality Judgment Points

1. Refrigeration System

 Compressor brand (e.g. Embraco, Aspera)

 Dual independent refrigeration systems for more stable temperature control

 Uniform air-cooled circulation to avoid local temperature deviation

2. Cabinet Structure

 High-density foam layer for better insulation

 Stainless steel plate thickness (usually 0.4–0.8mm)

 Effective anti-fog function of door frame heating wire

3. Temperature Control Technology

 Electronic temperature control with higher precision than mechanical type

 Equipped with temperature alarm function or not

 Check if fan noise is excessive

4. Energy Efficiency Class

 Grade 1 energy efficiency for optimal energy saving

 Check compressor power and total power consumption (kWh/24h)

IV. Energy-Saving & Cost-Reduction Guide

Follow these tips to cut electricity costs significantly:

1. Reduce Door Opening Times

 Each extra door opening requires the compressor to run for several more minutes

 Arrange special staff for restocking during peak hours to minimize frequent opening

2. Control Food Temperature

 Cool hot food naturally first before placing into low-temperature zone

 Do not set high-temperature zone too high (around 70℃ is optimal)

3. Ensure Good Heat Dissipation

 Regular condenser cleaning saves 10–30% electricity

 Keep ventilation around the cabinet and avoid close placement against walls

4. Rational Loading

 Do not overfill to prevent blocked air-cooled circulation

 Keep at least 5cm between food and air outlets

5. Choose Energy-Saving Models

 Grade 1 energy-efficient models save 20–40% more electricity than ordinary ones

 Air-cooled frost-free design avoids defrosting power consumption and temperature fluctuation