KEY COMPONENTS:

QUIET EVAPORATOR:
Passive heat transfer - The evaporator without built-in fans enables heat transfer through natural convection.
Fins and tubes - Designed to increase the surface area for heat exchange, allowing effective air cooling with minimal airflow.

Compressor:
Hermetic or semi-hermetic compressors - Provide stable operation and durability, designed for use in the positive temperature range.

Condenser:
Air-cooled condensers - Commonly used for these applications, enabling efficient air cooling.

Expansion Valve:
Thermostatic expansion valve (TEV) - Precisely controls the flow of refrigerant into the evaporator, maintaining optimal cooling conditions.

Control System:
Digital thermostat - Enables precise temperature control inside the chamber.
Temperature sensors - Continuously monitor conditions and adjust system operation accordingly.

ADVANTAGES OF QUIET EVAPORATORS:

Gentle cooling - Quiet evaporators do not generate strong air currents, making them ideal for products sensitive to drying or damage caused by air circulation.
Even temperature distribution - Natural convection ensures even temperature distribution, maintaining consistent conditions within the storage chamber.
Reduced product drying - Without active air circulation, the risk of dehydration of fresh products such as fruits, vegetables, and dairy products is minimized.
Lower operational costs - Fewer moving parts result in lower maintenance costs and reduced energy consumption.

APPLICATIONS:

Food industry
Storage of fresh products - Ideal for fruits, vegetables, dairy products, meat, and fish, where reducing dehydration and maintaining quality is crucial.
Wine and beverage storage - Quiet evaporators maintain stable temperatures without strong air currents, which is important for preserving wine quality.

Hospitality
Restaurants and hotels - Storing fresh ingredients and prepared foods, where consistent temperatures without dehydration are essential.
Catering - Preparation and storage of sensitive foods before transport to events.

Retail
Specialty stores - Storing delicatessen, cheeses, and other delicate products that require gentle cooling.
Smaller stores - Storing fruits, vegetables, and other fresh products.
Pharmaceutical industry
Storage of medications - Products that require stable temperatures without strong air currents.
Biological samples - Storing samples that cannot be frozen but require stable cold conditions.

Maintenance
Regular cleaning - The interior of the chamber, evaporator, and pipes should be cleaned regularly to prevent contamination and ensure smooth operation.
System inspection - Regular checks of compressors, condensers, and expansion valves ensure proper operation and timely detection of potential issues.
Parts replacement - Timely replacement of faulty components prevents major breakdowns and ensures continuous system operation.
Calibration of control systems - Ensuring thermostats and sensors work properly and precisely control the temperature.

* * * The use of refrigeration units for positive temperature mode with a passive evaporator ensures optimal conditions for storing sensitive products, reduces dehydration, and maintains high-quality storage. Proper maintenance and the use of high-quality equipment are key to the longevity and efficiency of refrigeration systems. * * *