Installation Guide ECL Comfort 210, application A2305.0 Settings, application A230.15.1 Flow temperatureAPPLICATION A230.1:The ECL Comfort controller determines and controls the flowtemperature related to the outdoor temperature. This relationshipis called the heat curve.The heat curve is set by means of 6 coordinate points. The desiredflow temperature is set at 6 pre-defined outdoor temperaturevalues.The shown value for the heat curve is an average value (slope),based on the actual settings.Outdoortemp. Desired flow temp. YoursettingsA B C-30 °C 45 °C 75 °C 95 °C-15 °C 40 °C 60 °C 90 °C-5 °C 35 °C 50 °C 80 °C0 °C 32 °C 45 °C 70 °C5 °C 30 °C 40 °C 60 °C15 °C 25 °C 28 °C 35 °CAdjust the desired flow temperature at -30, -15, -5, 0, 5, and 15 °C,if required.A: Example for floor heatingB: Factory settingsC: Example for radiator heating (high demand)Heat curveCircuit Setting range Factory setting1 Read-out onlyPush the dial to enter / change the coordinates of the heat curve.The heat curve represents the desired flow temperatures atdifferent outdoor temperature and at a desired room temperatureof 20 °C.If the desired room temperature is changed, the desired flowtemperature also changes:(Desired room T - 20) × HC × 2.5where "HC" is the Heat Curve slope and "2.5" is a constant.Desired flow temperature° C-50 -40 -30 -20 -10 0 10 2011010080604020CBAThe calculated flow temperature can be influenced by the ‘Boost’ and‘Ramp’ functions etc.Example:Heat curve: 0.7Desired flow temp.: 50 °CDesired room temp.: 22 °CCalculation (22–20) × 0.7 × 2.5 = 3.5Result:The desired flow temperature will be corrected from 50 °C to 53.5 °C.Danfoss District Energy VI.LG.H1.02 DEN-SMT/DK 47