63
Service setting manual
ENG
OPERATION MODES IN CASES OF SENSOR MALFUNCTION
Outdoor sensor is not connected or has a failure
In such case, the controller operates as a P-controller according to room temperature de-
viation. If room temperature sensor also has a failure or is not connected, the controller will
maintain constant stand-pipe temperature, which is:
- 25 °C higher as the set day or night temperature; for radiator heating system,
- 10 °C higher as the set day or night temperature; for floor heating system.
Stand-pipe sensor is not connected or has a failure
The controller assumes a 120 °C stand-pipe temperature and deactivates room heating.
Heating can be reactivated only by manual operation mode.
Liquid fuel boiler sensor is not connected or has a failure.
The controller assumes a 85 °C boiler temperature and activates the burner, if heating is
required. The boiler temperature can be set manually on a boiler thermostat.
Solid fuel boiler sensor is not connected or has a failure.
The controller assumes a 85 °C solid fuel boiler temperature. Switchover valve turns to
the solid fuel boiler.
Room sensor is not connected or has a failure.
Room heating operates uninterrupted, according to the outdoor temperature.
Return-pipe sensor is not connected or has a failure.
Room heating operates uninterrupted, without influence of return-pipe temperature.
The sensors of d. h. w. storage tank are not connected or have a failure
If one sensor has a failure, the controller uses only the other sensor. If both sensors have a
failure, the controller switches off the pump for d. h. w. warming.
Solar collector sensor is not connected or has a failure.
The circulation pump for d. h. w. warming with solar collectors is deactivated.
TABLE: resistance of Pt1000 temperature sensors
Temp. [°C]
Resistance [Ω]
Temp. [°C]
Resistance [Ω]
Temp. [°C]
Resistance [Ω]
Temp. [°C]
Resistance [Ω]
-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
