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

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Installation Guide ECL Comfort 210 / 310, application A275 / A375 Setting ID Page Factory settings in circuit(s) 1 2 3 P heat T (heat demand) 12078 141 20 °C P post-run 12040 141 3 m Frost pr. T (frost protection temperature) 12093 142 10 °C Ext. input (external override), ECL 210 12141 142 OFF Ext. input (external override) — ECL 310 12141 143 OFF Ext. mode (external override mode) 12142 143 COM- FORT Day 144 Start time 145 00:00 Duration 145 120 m Desired T 145 OFF Upper difference 12147 146 OFF Lower difference 12148 146 OFF Delay 12149 147 10 m Lowest temp. 12150 147 30 °C Charge difference 13193 148 15 K Start difference 13195 148 –3 K Stop difference 13194 149 3 K Ch.-o. valve / P (changeover valve / pump) 13051 150 ON Tank, sec. / prim. 13053 150 OFF DHW P post-run 13041 150 0 m Send desired T 13500 150 ON Frost pr. T (frost protection temperature) 13093 150 10 °C Ext. input (external override), ECL 210 13141 151 OFF Ext. input (external override) — ECL 310 13141 151 OFF Ext. mode (external override mode) 13142 152 COM- FORT Day 153 Start time 154 00:00 Duration 154 120 m Desired T 154 OFF Backlight (display brightness) 60058 164 5 Contrast (display contrast) 60059 164 3 Modbus addr. 38 165 1 ECL 485 addr. (master / slave address) 2048 165 15 Service Pin 2150 165 0 Ext. reset 2151 166 0 Language 2050 166 English 102 DEN-SMT/DK VI.GU.L1.02 Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.0 Settings, circuit 1 5.1 Flow (boiler) temperature The ECL Comfort controller determines and controls the flow (boiler) temperature related to the outdoor temperature. This relationship is called the heat curve. The heat curve is set by means of 6 coordinate points. The desired flow (boiler) temperature is set at 6 pre-defined outdoor temperature values. The shown value for the heat curve is an average value (slope), based on the actual settings. Outdoor temp. Desired flow (boiler) temp. A 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 °C 0 °C 32 °C 45 °C 70 °C 5 °C 30 °C 40 °C 60 °C 15 °C 25 °C 28 °C 35 °C A: Example for floor heating B: Factory settings C: Example for radiator heating (high demand) Heat curve Your settings Circuit Setting range Factory setting 1 0.1 ... 4.0 1.0 The heat curve can be changed in two ways: 1. The value of the slope is changed (see heat curve examples on next page) 2. The coordinates of the heat curve are changed Change the value of the slope: Push the dial to enter / change the slope value of the heat curve (example: 1.0). When the slope of the heat curve is changed by means of the slope value, the common point for all heat curves will be a desired flow (boiler) temperature = 24.6 °C at an outdoor temperature = 20 °C Change the coordinates: Push the dial to enter / change the coordinates of the heat curve (example: -30,75). The heat curve represents the desired flow (boiler) temperatures at different outdoor temperatures and at a desired room temperature of 20 °C. If the desired room temperature is changed, the desired flow (boiler) temperature also changes: (Desired room T - 20) × HC × 2.5 where "HC" is the Heat Curve slope and "2.5" is a constant. Desired flow (boiler) temperature Slope changes 110 100 80 60 40 20 Coordinate changes ° C C B A -50 -40 -30 -20 -10 0 10 20 The calculated flow (boiler) temperature can be influenced by the ‘Boost’ and ‘Ramp’ functions etc. Example: Heat curve: 1.0 Desired flow (boiler) temp.: 50 °C Desired room temp.: 22 °C Calculation (22–20) × 1.0 × 2.5 = 5 Result: The desired flow (boiler) temperature will be corrected from 50 °C to 55 °C. Danfoss District Energy VI.GU.L1.02 DEN-SMT/DK 103
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