95
2.
Drain heat pump at drain valve on pri-
mary/secondary side (see page 90).
Checking sensors
For sensor connections to the controller
and sensor PCB, see page 41.
For the position of the sensors in the heat
pump, see figure on page 90.
Temperature sensors type Ni 500
400
-40 -20
0
Resistance in
Temperature in °C
440
480
520
560
600
20 40 60
640
Capturing element: "Ni 500"
■ Outside temperature sensor (F0)
■ Flow temperature sensor, cooling cir-
cuit (direct heating circuit A1 or sepa-
rate cooling circuit) (F14)
■ Room temperature sensors
Temperature sensors type Pt 500
460
20
540
100
Resistance in
Temperature in °C
60
140 180
620
700
780
860
-20
Capturing element "Pt 500"
■ Buffer temperature sensor (F4)
■ Top (F6) and bottom (F7) cylinder tem-
perature sensors
■ Flow temperature sensor, system
(F13)
■ Flow temperature sensor, solar circuit
(F18)
■ Boiler temperature sensor, external
heat source (F20)
■ Return temperature sensor, solar cir-
cuit (F21)
Troubleshooting
Repairs
(cont.)
5724 152 GB
Service
Summary of Contents for AWS 104
Page 5: ...5 Certificates Declaration of conformity 119 Keyword index 120 Index Index cont 5724 152 GB...
Page 87: ...87 Opening programming unit 3 2 1 2x Troubleshooting Repairs cont 5724 152 GB Service...
Page 89: ...89 Removing separating plate 1 2 Troubleshooting Repairs cont 5724 152 GB Service...
