Download Danfoss application A214 Installation guide
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Installation Guide ECL Comfort 210 / 310, application A214 / A314 11077 P frost T (pump frost protection temperature) Circuit Setting range Factory setting 1 OFF / -10 ... 20 °C 2 °C Frost protection, based on the outdoor temperature: When the outdoor temperature is below the set temperature in ‘P frost T’, the controller automatically switches ON circulation pump X3 to protect the system. OFF: If the outdoor temperature sensor is not connected and the factory setting has not been changed to 'OFF', the circulation pump X3 is always ON. No frost protection. -10 ... 20: Circulation pump X3 is ON when the outdoor temperature is below the set value. 11027 Room T diff. — A214.3 / A314.3 Circuit Setting range Factory setting 1 –9.0 ... –0.5 K –2.0 K The relay 3 (X3) can be activated when the room temperature gets lower than the desired room temperature. Relay X3 is activated when the difference between the actual room temperature and the desired room temperature is bigger than the set value. Relay X3 is deactivated when the actual room temperature becomes higher than the desired room temperature. –9.0 ... –0.5 Under normal conditions, your system is not frost protected if your setting is below 0 °C or OFF. For water-based systems, a setting of 2 °C is recommended. In order to activate the relay X3 in relation to room temperature difference, the code setting in 'Optional function' must be "3". Room temp. °C Room T diff. Desired room temp. Set the desired temperature difference. Actual room temp. ON OFF Relay X3 Time 108 DEN-SMT/DK VI.GU.A1.02 Danfoss District Energy