ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...

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Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.9 Alarm Alarm for monitoring the flow temperature is only available in circuit 2 in A275.3 and A375.3 applications. Many applications in the ECL Comfort 210 and 310 series have an alarm function. The alarm function typically activates relay 4 (ECL Comfort 210) or relay 6 (ECL Comfort 310). The alarm relay can activate a lamp, a horn, an input to an alarm transmitting device etc. The relay in question is activated as long as the alarm condition is present. Typical alarms: • Actual flow temperature differs from the desired flow temperature. 6.9.1 Temp. monitor. Upper difference 12147 Circuit Setting range Factory setting 2 OFF / 1 ... 30 K OFF The alarm is activated if the actual flow temperature increases more than the set difference (acceptable temperature difference above the desired flow temperature). See also 'Delay'. OFF: The alarm function is not active. 1 ... 30 K: The alarm function is active if the actual temperature gets above the acceptable difference. Lower difference 12148 Circuit Setting range Factory setting 2 OFF / 1 ... 30 K OFF The alarm is activated if the actual flow temperature decreases more than the set difference (acceptable temperature difference below the desired flow temperature). See also 'Delay'. OFF: The alarm function is not active. 1 ... 30 K: The alarm function is active if the actual temperature gets below the acceptable difference. Flow temp. °C Flow temp. °C Upper difference (set value) Desired flow temp. Time Lower difference (set value) Desired flow temp. 146 DEN-SMT/DK VI.GU.L1.02 Danfoss District Energy Time
Installation Guide ECL Comfort 210 / 310, application A275 / A375 Delay 12149 Circuit Setting range Factory setting 2 1 ... 99 m 10 m If an alarm condition from either 'Upper difference' or 'Lower difference' is present for a longer time than the set delay (in min.), the alarm function is activated. 1 ... 99 m: The alarm function will be activated if the alarm condition remains after the set delay. Lowest temp. 12150 Circuit Setting range Factory setting 2 10 ... 50 °C 30 °C The alarm function will not be activated if the desired flow temperature is lower than the set value. Temp. Flow temp. Alarm limit Time Delay If the cause of the alarm disappears, the alarm indication and output also disappear. Danfoss District Energy VI.GU.L1.02 DEN-SMT/DK 147
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ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...

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