Δ
T control unit DO/DF
Delivered condition: DO 6.0
≙
6 °C; DF 4.0
≙
4 °C
Setting
range
Description
DO 1.5
–
DO 10.0
The control unit determines the differential between the collector
temperature and the cylinder temperature and compares these
with the selected starting temperature differential "DO". The solar
circuit pump is switched ON when this value is exceeded. The
solar circuit pump is switched OFF if the actual temperature falls
below the selected stopping temperature differential "DF".
Note
DO can be set a minimum of 0.5 K higher than DF and DF a maxi-
mum of 0.5 K below DO.
DF 1.0
–
DF
9.5
Maximum cylinder temperature SX
Delivered condition: SX 60.0
≙
60 °C
Setting
range
Description
SX 2.0
–
SX
90.0
This prevents a further heating of the cylinder when the selected
value is exceeded.
At the factory, the maximum cylinder temperature is enabled by
FN = 1.
Collector limit temperature CL
Delivered condition: CL 140.0
≙
140 °C
Setting
range
Description
CL 110.0
–
CL 200.0
The solar circuit pump is switched OFF to protect the solar com-
ponents when this temperature is exceeded.
Further details regarding the individual steps
(cont.)
62
Commissioning, inspection, maintenance
5592
883
GB
Содержание VITODENS 343-F WS4A
Страница 105: ...3 Replace the sensor in case of severe deviation Repairs cont 105 Troubleshooting 5592 883 GB Service ...
Страница 131: ...A1 Main PCB A2 Main PCB Connection and wiring diagram internal connections II 131 Designs 5592 883 GB Service ...
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