Our chillers
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At a glance
A chiller is an essential piece of equipment in many air-conditioning and refrigeration systems. It produces cold by lowering the temperature of a heat-transfer fluid, which is then distributed to the areas to be cooled.
Air-cooled or water-cooled, our chillers are designed to suit your environment.
ac_unitCooling capacity: up to 300 kW each
airAir flow: Over 300 m3/h
commitNumber of circuits: 1 to 4
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Cooling unit
A wide choice of functions
ac_unitthermostat
The choice of cooling function depends on several factors:
- arrow_rightCooling requirements: cooling capacity required, temperature to be reached...
- arrow_rightBuilding configuration: number of zones to be cooled, architectural constraints, integration...
- arrow_rightBudget: Investment and operating costs.
- arrow_rightEnvironmental regulations: Compliance with current refrigerant standards.
The choice of refrigerant is made on a project-by-project basis.
Refrigerants have a direct influence on energy efficiency and environmental impact. We can offer you solutions with :
- arrow_rightHFO (Hydrofluorolefins): New generation of refrigerants with very low global warming potential (GWP) and high energy efficiency, such as R1234, R454, R32...
Although the primary function of a chiller is to cool, solutions are available to transform a cooling system into a heating system. This is generally achieved by means of a reversing valve that changes the direction of refrigerant circulation.
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The hydraulic circuit of a chiller is the set of components and heat transfer fluid that transport thermal energy between the chiller and the equipment to be cooled.
The main components of the hydraulic circuit:
- arrow_rightCirculation pump: may be of different technologies (positive displacement or centrifugal) and quantities (single or double), depending on the heat transfer fluid in the circuit and the flow/pressure characteristics.
- arrow_rightHeat exchanger: Plate or tubular type.
- arrow_rightControl valve: Controls the flow of heat transfer fluid, thus regulating temperature.
- arrow_rightExpansion vessel: To compensate for variations in heat transfer fluid volume due to temperature changes.
- arrow_rightBuffer tank: For the needs of the equipment to be cooled during anti-short-cycle phases of the chiller's cooling circuit.
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Our chillers are generally supplied with high-efficiency variable-speed fans (EC): a wise choice for many applications.
Various fan types are available: motor-turbine, centrifugal or axial.
Factors to consider when making your final choice
- arrow_rightCharacteristic curve: The fan's characteristic curve (relationship between flow rate and pressure) must be adapted to your application.
- arrow_rightMaterial of construction: The choice of material will depend on the environment (temperature, corrosivity, etc.).
- arrow_rightVibration level: Vibration can generate noise and mechanical stress.
- arrow_rightEnergy efficiency: Fan efficiency must be optimized to reduce operating costs.
We'll size your air and fluid handling solution to your needs, so don't hesitate to contact us!
A tailor-made experience
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The choice of casing and filtration for your chiller is crucial, and will have a direct impact on the performance, service life and aesthetics of your equipment. Here's a detailed analysis of the different materials and options available, to help you make the best choice for your specific needs.
Sheet metal materials :
- arrow_rightPainted galvanized steel (standard): Most economical - Offers good mechanical strength.
- arrow_rightStainless steel: Corrosion-resistant - Ideal for damp or aggressive environments - Offers good mechanical strength.
- arrow_rightAluminum: Seeking a lightweight solution - Good corrosion resistance.
Thermal and acoustic insulation :
- arrow_rightDouble skin: Good thermal and acoustic insulation - Reduces energy loss and noise pollution - Increased protection against corrosion - Creates an additional barrier between the external environment and internal components.
- arrow_rightSpecific insulating materials: Rockwool, polyurethane, etc.
- arrow_rightMulti-layer insulation: For very high insulation requirements.
Other options :
- arrow_rightSurface treatments: Special paints, anti-corrosion coatings, etc.
- arrow_rightDismountability: Dismountable cabinet solutions for complex handling and accessibility requirements.
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Our direct-expansion chillers are complex systems requiring precise regulation to maintain the desired ambient conditions. This regulation is ensured by a set of electronic and mechanical components that interact to control the various system parameters.
The heart of the control system is the microprocessor controller, which manages all system functions:
- arrow_rightHeating and cooling: It determines the setpoint temperature and compares this value with the measured temperature.
- arrow_rightAlarms: It constantly monitors system operation and triggers alarms in the event of anomalies (overheating, undercooling, component failure, etc.).
The controller receives information from the various sensors (temperature, pressure) and components (expansion valve, compressor). It analyzes this data and calculates the commands to be sent to the actuators (valves, fans, compressor) to maintain the desired hydraulic conditions.
Other control components
- arrow_rightThermostatic expansion valve: This mechanical component regulates refrigerant flow according to evaporation temperature. It thus adapts refrigeration capacity to system requirements.
- arrow_rightElectronic expansion valve: More precise than the thermostatic expansion valve, it offers finer regulation of refrigerant flow. It is often used in the most efficient systems.
- arrow_rightCPCE-type pressostatic valve: adjusts refrigeration capacity by regulating fluid pressure according to a predefined pressure setpoint.
- arrow_rightInverter compressor: the inverter compressor is equipped with a DC motor powered by an inverter. This inverter enables the frequency of the electric current sent to the motor to be modified, thereby varying its rotation speed. In this way, the inverter compressor can adapt its cooling or heating power in real time, according to the needs of the moment.
Our cooling solutions adapt to the power supply available on site: 400 V or 230 V, three-phase or single-phase, 50 Hz, 60 Hz or even 400 Hz.
Our systems include an integrated electrical cabinet with all the protection and safety equipment required to protect equipment and personnel.
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Other possible features:
- arrow_rightFree chilling: The chiller's integrated function allows outside air to be used, weather permitting, to directly cool the water circulating in the cooling circuit.
- arrow_rightATEX certification: The cabinet is specifically designed with equipment for use in potentially explosive atmospheres.
- arrow_rightHeat exchanger and protection: A choice of materials and treatments is available to suit the constraints of use in aggressive environments (seaside, offshore, salt spray, humidity...) with :
- chevron_rightCopper tube and fin
- chevron_rightStainless steel
- chevron_rightHeresite treatment
- chevron_rightPaint
Other options are available for a turnkey cooling solution:
- arrow_rightInverter to switch to another electrical network in the event of a power cut.
- arrow_rightAir isolation damper to isolate the machine under certain conditions.
- arrow_rightSound trap to limit noise levels generated by fans, etc.
- arrow_rightetc.