100
Checking sensors
Sensor
Capturing element
■ System flow temperature sensor (F13)
■ Buffer temperature sensor (F4)
■ Cylinder temperature sensor (F6)
■ Flow/return temperature sensor, heating circuit (F8/F9)
■ All sensors inside the heat pump
■ Boiler water temperature sensor, external heat generator
Pt1000
Temperature sensors type Pt1000
Sensor connections at terminals and
the controller
1600
1500
1400
1300
1200
1100
1000
900
800
Resistance in W
Temperature in °C
-50
0
50
100
150
Checking MCB/fuses
Danger
Contact with 'live' components
can lead to serious injury from
electric current.
Before working on the equip-
ment, ensure that
the power cir-
cuit is also at zero volt.
Removing fuses does
not switch
the power circuit to zero volt
.
Troubleshooting
Repairs
(cont.)
5848 449 GB
