Baxi Potterton Solar Potterton Solar - SolarThermal Domestic Hot Water System26

Potterton Solar - SolarThermal Domestic Hot Water System26
Resistance table PT1000.
The correctfunction of temperature sensors can be
checkedon the basis of the following temperature
resistance table with a resistancemeasuring instrument:
5.0 Fault finding
TemperatureinºC Resistancein Ohm
-30 882
-20 921
-10 960
0 1000
10 1039
20 1077
30 1116
40 1155
50 1194
60 1232
70 1271
80 1309
90 1347
100 1385
120 1461
140 1535
200 1758
YES
Nodisplay at solar differential
temperature controller
Controllerfault
Replace controller
Isthe 230/240V~ power
supply switched on
YES
Has thermal cutout
oncylinder operated
(unvented systems only)
NO
NO
Is internal
fuse operational
YES
NO
Replace internal fuse
Check wiring and rectify
Resetthermal cutout.
Investigate cause of operation
andrectify
Is the 230/240V~
power supply at the controller
terminal block
Switch on power supply
Isthe 230/240V~ power
supply correctly wired
YES
NO
YES
NO
Correctany wiring faults