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Sentera – your partner in HVAC control solutions

HVAC controllers
HVAC controllers
A good ventilation system requires a smart HVAC control system that is easy to use. The HVAC controller can be seen as the central brain of the ventilation system. With more than a decade of experience in the HVAC sector, we can easily understand your application. We translate this knowledge and experience in the software that is already integrated in our products. No need for you to write complex algorithms, just connect all devices together and select your application! Sentera HVAC controllers can work stand-alone or can be connected to the internet for data logging or remote control.
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HVAC transmitters and sensor controllers
HVAC transmitters and sensor controllers
How to monitor indoor air quality? Indoor air quality or IAQ is not merely a matter of how the environment feels, polluted indoor air has a direct impact on our health and well-being. Together with the increased thermal insulation of our buildings, the importance of smart ventilation systems is rising in order to maintain a good indoor air quality and to minimise energy losses. The following parameters have a direct impact on the health, the sense of well-being and the comfort of the residents: temperature - relative humidity – carbon dioxide or CO2 – VOC or Volatile Organic Compounds – carbon monoxide or CO – nitrogen dioxide or NO2. To monitor or control the amount of fresh air that is supplied into a building, it is important to monitor and control differential pressure, volume flow and air velocity. As a specialist in control solutions for HVAC and ventilation systems, Sentera developed a wide range of HVAC transmitters and sensor controllers – each with its own, specific purpose. All of them can be found in this section.
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Variable fan speed controllers
Variable fan speed controllers
How to control AC fan speed? Here you can find continuous variable speed controllers for single or three phase AC voltage controllable motors and fans in HVAC applications. Electronic variable fan speed controllers allow you to regulate the speed of AC fans manually or demand based. Phase angle control (TRIAC technology) is used to adjust the motor voltage and to control the fan speed. Thanks to this technology, these speed controllers are completely silent. Depending on the motor type, some additional motor noise at low speed might occur. Fan speed controllers offer you advantages in terms of comfort - optimisation of the supply of fresh air in your building, in terms of health - improvement of the indoor air quality as well as in environmental terms - thanks to the optimised airflow, your ventilation system will be more energy efficient.
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Transformer fan speed controllers
Transformer fan speed controllers
How to control AC fan speed? Here you can find 5-step fan speed controllers for single or three phase voltage controllable motors in HVAC applications. Fan speed controllers with autotransformers provide a simple, yet robust solution to control the speed of single or three phase voltage controllable motors by varying the motor voltage in steps. This technology generates a motor voltage with a perfect sinusoidal shape, guaranteeing a quiet motor operation. A special impregnated coating reduces the electrical noise from the autotransformers. These speed controllers allow you to control AC fan speed manually or demand based. In general, fan speed controllers offer you advantages in terms of comfort - optimisation of the supply of fresh air in your building, in terms of health - improvement of the indoor air quality as well as in environmental terms - thanks to the optimised airflow, your ventilation system will be more energy efficient.
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Frequency inverters
Frequency inverters
How to control AC fan speed? Another possibility is Variable Frequency Drives - VFD or frequency inverters that offer very precise motor control for various motor types: single phase AC motors, IE2, IE3 and IE4 induction motors, AC permanent magnet motors, brushless DC motors and synchronous reluctance motors can be controlled via our frequency inverters. A frequency inverter uses IGBT technology to vary both motor voltage and frequency via pulse width modulation, guaranteeing a very precise motor control. Thanks to the integrated macros, configuration of the devices remains easy. Pump mode makes energy efficient pump control possible. Fan mode (incl. fire operation) makes air handling a breeze, ideal for simple HVAC systems. This technology is designed for those applications that require a very efficient and precise motor control.
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Control switches and Potentiometers
Control switches and Potentiometers
How to control EC fan speed? How to control a damper position? EC fans, frequency inverters, fan speed controllers, damper actuators and many other devices require an analogue control signal, e.g. 0-10 VDC, 0-20 mA or 0-100% PWM to regulate the fan speed or damper position between a minimum and a maximum value. Sentera offers a wide range of control switches and potentiometers to manually generate a stepped or continuous variable control signal.
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Power supplies
Power supplies
How to select a power supply? 24 VDC, 12 VAC or 24 VAC are commonly used power supply voltages for HVAC controllers and HVAC transmitters. These supply voltages make it possible to reduce the size and to increase the reliability of these devices. In specific a 24 VDC supply voltage allows you to increase the energy efficiency and the safety of your HVAC installation. Therefore, Sentera advises to use HVAC controllers and transmitters that require 24 VDC power supply. If you want to save installation time, we recommend the Sentera -M series or PoM devices. These devices are interconnected via a single network cable with RJ45 connectors – distributing both 24 VDC power supply and Modbus RTU communication. Always calculate the required DC or AC power for your application – don’t guess it! List all devices that require power supply in a spreadsheet and make the sum of the current consumption of the different devices, in Ampere. The combination of the supply voltage and the required current consumption will determine the best power supply for your application.
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Electric heating element controllers
Electric heating element controllers
How to control electric heating elements? Electric heating elements convert electricity into heat that can be used to warm up an area, a room or a building. In some cases the heating element is visible - glowing red-hot behind a protective grille. In other devices it's hidden inside, protected by casings of metal and plastic. No matter how big the heater is, no matter whether it's radiant heat, oil-filled, or fan-forced, it is using a heating element that converts electricity into heat. Typical HVAC applications of electric heating elements are furnaces for industrial heating, floor heating, roof heating, pathway heating to melt snow, dryers, etc.
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Modbus RTU network and configuration tools
Modbus RTU network and configuration tools
How to configure Sentera products via Modbus RTU? How to interconnect Sentera products via Modbus RTU? How to monitor Sentera products via internet? Combine the strength and intelligence of different Sentera devices and create the perfect control solution for your ventilation system. When different Sentera products are connected via Modbus RTU, they can share information and control fans, dampers and many other devices based on the measurements of HVAC transmitters. This makes it possible to increase the indoor air quality while realising energy savings. Data logging or configuration of the devices can be done locally or remotely via internet.
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Transformers
Transformers
Autotransformers are electrical transformers with one coil and different voltage taps. Via these different voltage taps, the different reduced voltages are available. The single winding of an autotransformer acts both as primary and secondary winding simultaneously. This makes it possible to obtain a smaller and lighter construction compared to classical dual-winding transformers. Autotransformers are integrated in Sentera transformer fan speed controllers for motor speed control in steps via voltage reduction, but they can also be used stand alone in applications that require a voltage reduction. Sentera has its own production line for autotransformers to guarantee optimal quality.
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Switch disconnectors and motor circuit breakers
Switch disconnectors and motor circuit breakers
How to handle electric motors in a safe way? We are surrounded by electric motors and fans. In our society, much attention is paid to the safety of electric circuits. Electric motors in particular require extra protection, since they usually go together with higher currents and moving mechanical parts. Switch disconnectors can be applied as safe maintenance and repair switches or as enclosed main switches for individual electrical loads. Motor protection circuit breakers provide short-circuit, phase-loss and thermal overload protection.
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Spare parts
Spare parts
In the unlikely case that your high quality Sentera product is broken, you can find typical spare parts in this group. >>>
End of life approaching
End of life approaching
These articles are end of life approaching. The new variant is mentioned in the product details. We advise to switch to the more recent products.
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Discontinued
Discontinued
The products in this group are no longer available. The manuals and technical specifications of these products can still be downloaded here. If an alternative for the discontinued product is available, it is mentioned in the product details.
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