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Danfoss Ecl 9310 Manual

Danfoss ecl 9310 manual

The Danfoss ecl 9310 is an intelligent temperature controller for district heating, district cooling and domestic hot water systems. It is part of the Danfoss ECL series, which share the main function of weather compensation. The controller can be used to control the flow temperature, the return temperature, the differential pressure and the pump speed of the heating or cooling system. The controller also has a built-in program clock, which allows the user to set different temperature levels for different times of the day and week. The controller can be connected to an external sensor, a communication module or an application key for additional functions and features.

This article will provide a brief overview of the operating guide for the Danfoss ecl 9310 controller. The operating guide contains information on how to set up, adjust and troubleshoot the controller. The operating guide can be downloaded from [this link] or viewed online from [this link]. The operating guide is available in several languages, including English, Danish, German, French and Spanish.


Setting up the controller

The first step in setting up the controller is to install it on the wall or on a DIN rail. The controller should be mounted in a dry and well-ventilated place, away from direct sunlight, heat sources and electromagnetic interference. The controller should be connected to the power supply, the sensor cables and the valve motor according to the wiring diagram provided in the operating guide. The controller should be configured according to the type of system, the sensor type and the desired settings. The configuration can be done by using the potentiometers on the front panel or by using an application key.

Adjusting the controller

The second step in operating the controller is to adjust it according to the specific needs and preferences of the user. The controller has four main elements that can be adjusted: the function switch, the temperature setting, the program clock and the heat curve. The function switch allows the user to select between different modes of operation, such as automatic, manual, reduced or off. The temperature setting allows the user to change the flow temperature by turning a knob clockwise or counterclockwise. The program clock allows the user to set different temperature levels for different times of the day and week by using sliders. The heat curve allows the user to adjust the slope and limits of the flow temperature as a function of the outdoor temperature by using potentiometers.

Troubleshooting the controller

The third step in operating the controller is to troubleshoot it in case of any problems or errors. The controller has an LED indicator that shows if it is on or off, and if there are any faults or alarms. The operating guide provides a list of possible faults and alarms, along with their causes and solutions. Some common faults and alarms are: sensor error, communication error, valve motor error, pump error and low battery. If the fault or alarm cannot be solved by following the instructions in the operating guide, the user should contact a qualified service technician or Danfoss customer service.


The Danfoss ecl 9310 is an intelligent temperature controller that can be used to control various aspects of a heating or cooling system. The controller has a user-friendly design that allows easy installation, configuration, adjustment and troubleshooting. The controller also has advanced features that enable weather compensation, energy saving and remote communication. The operating guide provides detailed information on how to use and maintain the controller properly. The operating guide can be accessed from [this link] or [this link]. For more information on Danfoss ECL series controllers, visit [this link].


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