Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 91

Checking the temperature sensors
Indoor unit: Viessmann NTC 20 k
/ °C R / k / °C R / k
ϑ Ω ϑ
40 702.156 10
–
35 503.154 15
–
30 364.902 20
–
25 257.655 25
–
20 198.442 30
–
15 148.362 35
–
10 112.403 40
–
5 85.788 45
–
0 66.048 50
5 51.214 55
(cont.)
(orange marking)
Ω
/ °C R / k
Ω ϑ Ω
40.034 60 4.943
31.537 65 4.136
25.027 70 3.478
20.000 75 2.937
16.090 80 2.492
13.028 85 2.123
10.613 90 1.816
8.696 95 1.559
7.166 100 1.34
5.936 105 1.16
/ °C R / k / °C R / k
ϑ Ω ϑ
110 1.009 165
115 0.879 170
120 0.768 175
125 0.673 180
130 0.592 185
135 0.522 190
140 0.461 195
145 0.409 200
150 0.364 205
160 0.289 210
Maintenance
/ °C R / k
Ω ϑ Ω
0.259 215 0.097
0.233 220 0.089
0.209 225 0.081
0.189 230 0.075
0.171 235 0.069
0.154 240 0.063
0.140 245 0.058
0.127 250 0.054
0.116 255 0.050
0.106 260 0.046
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