Wine Cellar Temperature and Humidity Control Unit

Wine Cellar Temperature and Humidity Control Unit

Working Principle

Cooling: High-pressure liquid refrigerant passes through the expansion valve, where throttling reduces its pressure before entering the evaporator. There, it absorbs heat from the air and evaporates into vapor. The vapor is drawn into the compressor, where it is compressed into high-temperature, high-pressure gas. This gas enters the condenser, where heat is dissipated via the heat exchanger. The refrigerant then reverts to high-temperature, high-pressure liquid, flows through the filter, and returns to the expansion valve. This cycle repeats to lower the indoor temperature.

Heating: When the air temperature falls below the set point, the unit's computer controller activates the electric heater. The heated air is then circulated by the fan into the regulated space.

Dehumidification: When air humidity exceeds the target level, air passes through the evaporator and is cooled below the dew point, causing moisture to condense and be removed.

Humidification: When the relative humidity of the air falls below the desired level, the thermostat's computer controller activates an electrode-type humidifier. Water is heated to boiling, producing steam that is delivered into the air-conditioned room via the fan.

Core Functions and Technical Features

Precise Environmental Control: Temperature control range typically spans 0°C–20°C, with actual cellar temperatures maintained stably between 12°C–18°C. Accuracy reaches ±1°C, while high-end models achieve ±0.8°C. For humidity control, built-in humidifiers maintain levels between 55%–70% RH ±5%.

Intelligence and Reliability: Supports remote operation and automatic power-failure restart, enabling year-round uninterrupted operation. Select models incorporate condensate drain pumps and anti-vibration devices to reduce failure rates.

Equipment Types and Installation Methods

Common Types: Split-type constant temperature and humidity units consist of outdoor and indoor units. Indoor units come in ceiling-mounted, wall-mounted, or freestanding cabinet configurations, featuring excellent heat dissipation and low noise levels, suitable for medium to large wine cellars.

Installation Considerations: Ceiling-mounted units require sufficient load-bearing capacity, with drain pipes fitted with U-shaped traps. Outdoor units should be positioned away from corrosive gases and high-wind areas, ensuring adequate ventilation space. Additionally, wine cellars must incorporate insulation measures, such as installing specialized insulated doors.