EU declaration conformity
Air heater / cooler controller | EC fans
Product description
The ECH-8-DM, is the go-to controller for air heaters or air coolers equipped with EC fans. Designed with user-friendliness at its core, the ECH streamlines the management of ambient temperatures in spaces like warehouses or industrial areas.
The required supply voltage is 85—305 VAC / 50—60 Hz
Temperature management becomes a breeze with the ECH's intuitive interface. A rotary knob on the front panel empowers users to fine-tune temperature setpoints within the range of 5 - 35 °C. This hands-on approach puts you in direct control, ensuring that your environmental conditions are precisely calibrated to meet your requirements.
The ECH offers automated control of the EC fan speed, responding dynamically to ambient temperature changes, or users can alternatively adjust the fan speed manually, selecting from five distinct steps. The ECH's versatility extends to its unregulated output, allowing seamless control over a water valve or an electric heating element.
Modbus communication takes functionality to the next level, enabling users to effortlessly toggle the unregulated output between cooling and heating modes. Alternatively, a straightforward jumper selection offers a quick and efficient way to switch between modes, giving you the autonomy to choose the method that suits your operational preferences.
Documents
Additional specifications and description
How Does the ECH-8-DM Control Heating or Cooling Devices?
What Are the EC Fan Speed Settings and Output Options on this product?
EC fan speed can be controlled via the analogue output. EC fan speed can be manually set via the rotary switch on the front panel. There is the possibility to select one of the five available fixed speeds, there is an OFF position and automatic mode.
In automatic mode, EC fan speed is regulated automatically based on the ambient temperature. High and low speed can be adjusted via the Modbus registers if necessary. The analogue output range can be selected via a jumper or via Modbus communication: 0 - 6 VDC or 0 - 10 VDC.
The controller also features the so-called remote mode. It turns off all user interfaces except Modbus RTU communication. After remote mode has been selected (via Modbus holding register 20), the RGB LED indication, the analogue output and unregulated output states are controlled by Modbus master device via holding registers 21 - 24.

Remote control mode disables all user interfaces on the front panel. Remote control mode can be activated by writing value 1 in Modbus holding register 20.
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