22
Suppression of DHW cylinder reheat-
ing by the boiler
Coding address "67" in boiler control unit
2
defaults a third set DHW temperature
(setting range 10 to 95 °C). This value
must be below the first set DHW temper-
ature. DHW cylinder 2
qI
will only be
heated by boiler
1
(solar circuit
pump R1
eE
runs) if this set value cannot
be achieved by the solar thermal sys-
tem.
DHW heating without solar energy
DHW cylinder 2
qI
is heated by boiler
1
. The cylinder thermostat with cylinder
temperature sensor
3
of boiler control
unit
2
regulates circulation pump for
cylinder heating
4
.
System examples
System example 3
(cont.)
5414 620 GB
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