Our heat pumps
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At a glance
Systems that recover thermal energy (calories) from the air, ground or water, and reuse it to heat or cool a space.
With direct expansion and/or chilled water, our heat pumps can be modified, designed and customized to suit your environment, needs and constraints.
ac_unitCooling capacity: up to 800 kW per unit
commitNumber of circuits: 1 to 4
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Mobile heat pumpGrey water heat pump
A wide choice of functions
ac_unitthermostat
The characteristics of the heating function depend on several factors:
- arrow_rightHeating requirements: cooling capacity required, temperature to be reached...
- arrow_rightBuilding configuration: 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 heat pump is to heat air or water, there are solutions that enable it to be switched to a cooling 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 heat pump is the set of components and heat-transfer fluid used to transport thermal energy between the heat pump and the equipment to be heated.
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 medium 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 heat pump's cooling circuit.
air
Our heat pumps are generally supplied with high-efficiency variable-speed fans (EC): a wise choice for many applications.
EC (Electronic Commutation) fans are permanent magnet synchronous electric motors that offer a number of advantages over conventional motors:
- arrow_rightHigh energy efficiency: They consume less energy for a given performance, thus reducing operating costs.
- arrow_rightPrecise speed control: Rotational speed can be infinitely adjusted, allowing airflow to be optimized as required.
- arrow_rightLong service life: Their robust design and absence of brushes make them long-lasting.
- arrow_rightLow noise: They are generally quieter than conventional motors.
Different fan types are available: motor-turbine, centrifugal or axial.
The choice of fan type will depend primarily on the characteristics of your application, including :
- arrow_rightAir flow required: The air flow required for your application will determine the fan size.
- arrow_rightStatic pressure: The pressure the fan needs to generate to overcome network resistances (ducts, filters, etc.) is a key factor.
- arrow_rightFootprint: The space available for fan installation is an important constraint.
- arrow_rightNoise level: The acceptable noise level in the installation environment.
We'll size your air and fluid handling solution according to your needs, so don't hesitate to contact us!
A tailor-made experience
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The choice of casing for your heat pump will have a direct impact on the lifespan and aesthetics of your equipment.
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 heat pumps 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_rightHumidity: The controller also manages humidity levels by controlling dehumidification or humidification devices.
- arrow_rightAlarms: The controller continuously 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 heat pumps 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 come with an integrated electrical cabinet containing all the protection and safety equipment needed to protect the equipment and ensure personal safety.
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Other possible features :
- arrow_rightFree cooling / Free chilling: Function integrated into the system, allowing the use of outside air when climatic conditions permit, to cool the environment, thus reducing energy consumption.
- arrow_rightRemovability: Removable cabinet solutions for complex handling and accessibility.
- arrow_rightHeat exchanger and protection: A choice of materials and treatments is available, depending on 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_rightPlenum / false floor support for air flow orientation at machine inlet or outlet.
- arrow_rightWater detection / lift pump in the machine to warn of water leaks in the cabinet and activate the pump to empty the drain or retention tank when gravity drainage is not possible.
- arrow_rightReversing switch 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.