WITA SM W 05 FR, Installation Manual

Page: 40 / 64

WITA Fixed setpoint controller SM WR FR
40
Operating instrutions
9 Sensor equipment
The temperature sensor is preassembled on the fixed setpoint controller.
In inflow temperature control, assembly takes place on the inflow of the heating
cycle, in the in return flow temperature regulation it is assembled on the return
flow of the boiler. The recommended assembly location is approx. 0.5 m behind
the heating pump. The heating tube should be cleaned well and heat-conducting
paste should be applied during the assembly of the temperature sensor on the
heating pipe. Alternatively, the temperature sensor can also be used as an immer-
sion sensor.
9.1 Sensor resistance values.
Sensor PT1000
Note
Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance
[°C] [W] [°C] [W] [°C] [W] [°C] [W]
-20 922 35 1136 90 1347 145 1555
-15 941 40 1155 95 1366 150 1573
-10 961 45 1175 100 1385 155 1592
-5 980 50 1194 105 1404 160 1611
0 1000 55 1213 110 1423 165 1629
5 1020 60 1232 115 1442 170 1648
10 1039 65 1252 120 1461 175 1666
15 1058 70 1271 125 1480 180 1685
20 1078 75 1290 130 1498 185 1703
25 1097 80 1309 135 1415 190 1722
30 1117 85 1328 140 1536 195 1740