SDC12-31ACD01 Technical data
173
ATMOS ACD01 – SERVICE MANUAL EN
12.2 Resistance values of sensors
Resistance of a Honeywell NTC 20 k
sensor, sensors for AF, WF/KF, SF, VF1, VF2, VI1, VI2, VI3, KSPF
°C
k
°C
k
°C
k
°C
k
-20 220.6 0 70.20 20 25.34 70 3.100
-18 195.4 2 63.04 25 20.00 75 2.587
-16 173.5 4 56.69 30 15.88 80 2.168
-14 154.2 6 51.05 35 12.69 85 1.824
-12 137.3 8 46.03 40 10.21 90 1.542
-10 122.4 10 41.56 45 8.258 95 1.308
-8 109.2 12 37.55 50 6.718 100 1.114
-6 97.56 14 33.97 55 5.495
-4 87.30 16 30.77 60 4.518
-2 78.23 18 27.90 65 3.734
Resistance values of PT 1000 sensors for VI1 (adjustment of AGF), KVLF
°C
°C
°C
°C
0 1000.00 80 1308.93 140 1535.75 280 2048.76
10 1039.02 85 1327.99 150 1573.15 300 2120.19
20 1077.93 90 1347.02 160 1610.43 320 2191.15
25 1093.46 95 1366.03 170 1647.60 340 2261.66
30 1116.72 100 1385.00 180 1684.65 360 2331.69
40 1155.39 105 1403.95 190 1721.58 380 2401.27
50 1193.95 110 1422.86 200 1758.40 400 2470.38
60 1232.39 115 1441.75 220 1831.68 450 2641.12
70 1270.72 120 1460.61 240 1904.51 500 2811.00
75 1289.84 130 1498.24 260 1976.86
12.3 Measurement ranges of sensors
Name
Abbreviation on the unit
back side
Sensor type
Measurement range
Outdoor sensor AF Honeywell NTC 20 k
-50 °C ... 90 °C
Boiler sensor KF Honeywell NTC 20 k
-50 °C ... 125 °C
Flow sensor 1 VF1 Honeywell NTC 20 k
-50 °C ... 125 °C
Flow sensor 2 VF2 Honeywell NTC 20 k
-50 °C ... 125 °C
DHW sensor SF Honeywell NTC 20 k
-50 °C ... 125 °C
Solar panel sensor KVLF PT1000 -50 °C ... 500 °C
Buffer sensor KSPF Honeywell NTC 20 k
-50 °C ... 125 °C
Variable input VI1 *) VI1
Honeywell NTC 20 k
PT1000
-50 °C ... 125 °C
-50 °C … 500 °C
Variable input VI2 VI2 Honeywell NTC 20 k
-50 °C ... 125 °C
Variable input VI3 VI3 Honeywell NTC 20 k
-50 °C ... 125 °C
12.4 Digital inputs
Name
Abbreviation on the unit
back side
Input type
Measurement range
Pulse counter Imp Low voltage
10 Hz
