Description

Wine cellar cooling units: precise temperature and humidity control

Wine Cellar Cooling Units are air-conditioning units specifically designed to maintain optimum wine storage conditions: a stable temperature between 12 °C and 16 °C, relative humidity between 60% and 80%, and minimal air renewal to avoid odours. Unlike conventional refrigeration systems, these units work with small temperature differences to prevent corks from drying out, and they maintain the right humidity level without the need for external humidifiers.

Technical specifications

  • Precision temperature control of ±0.5 °C for optimum storage
  • Built-in relative humidity control or compatible with an external humidistat
  • Large-surface evaporator for operation at a low temperature difference (reduced TD)
  • Quiet operation: low noise level for use in occupied spaces
  • Compact design for installation in a wine cellar or storage room
  • Gentle defrost system with no thermal shock to the wine
  • Compatible with low-GWP refrigerants

Advantages

✔ Stable temperature without fluctuations: protects wine from damage caused by sudden temperature changes
✔ Humidity control to preserve the cork and prevent wine contamination
✔ Low noise level: can be installed in cellars and wine rooms in residential areas
✔ Does not dry out the air: ideal for long-term storage in wine racks
✔ Designed specifically for wine: higher operating temperature than a conventional refrigerator
✔ Low energy consumption for continuous operation

Applications

Domestic and semi-professional wine cellars; restaurant cellars with valuable collections; specialist wine and drinks shops; small wineries with an ageing room; any installation requiring controlled temperature and humidity for optimum wine storage.

Standards and compliance

Wine cellar cooling units comply with the Machinery Directive 2006/42/EC and the EMC Directive 2014/30/EU. In installations with refrigerant, the F-Gas Regulation (EU) 517/2014 applies. Wine storage in commercial premises is subject to the legislation on storage conditions for alcoholic beverages.

FAQs

At what temperature should I store wine in my cellar?

The ideal temperature for storing most wines for ageing is between 12 °C and 14 °C. White and sparkling wines are best stored between 8 °C and 12 °C. Temperature fluctuations are wine’s worst enemy: a unit that keeps a stable temperature with variations below ±1 °C is preferable to one that cools more but with wide temperature cycles.

Do I need humidity control in my wine cellar?

Yes, especially if you store cork-sealed wines. The optimum relative humidity is between 60% and 80%. Below 50%, the cork dries out and may lose its sealing ability, letting air in and causing premature oxidation of the wine. Wine cellar cooling units are designed to work at a low temperature difference, which naturally reduces air drying compared with a conventional refrigerator.

How many cubic metres can a single unit cool?

The capacity of each unit is given in the model’s technical data sheet. As a rough guide, a unit with 600-900 W of cooling capacity can maintain storage conditions in a well-insulated 3 to 8 m³ cellar at moderate ambient temperatures. For larger cellars or poorly insulated ones, a specific heat load calculation is required.