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Function description
Cylinder temperature control (only for single boiler systems)
Brief description
The cylinder thermostat operates
with a constant temperature. It is the
result of starting and stopping the
cylinder primary pump.
The switching differential is ±2.5 K.
During cylinder heating, a constant
upper boiler water temperature will
be set (20 K higher than the set
cylinder temperature, adjustable via
coding address "60").
Coding addresses which influence
the cylinder thermostat
4E, 54, 55, 56, 58 to 5A, 60 to 63,
67 to 69.
For a description, see page 147.
Functions
Frost protection
The DHW cylinder will be heated to
20 ºC if the DHW temperature drops
below 5 ºC.
Auxiliary function for DHW heating
This function is enabled by providing
a second set DHW temperature via
coding address "58" and by
determining a time via coding
address "63".
Heating up with the auxiliary
function takes place with the first
heating up of the cylinder each day.
Set DHW temperature
The set DHW temperature can be
adjusted between 10 and 60 ºC. The
set range can be extended to 95 ºC
via coding address "56".
System with cylinder storage system
The above functions also apply in
conjunction with cylinder storage
systems.
Set the following codes:
"4C:1", "4E:1", "55:3"
(see page 146).
System with Vitosolic
A third set DHW temperature can be
defaulted via coding address "67".
Reheating will be suppressed above
the selected temperature. The DHW
cylinder will only be heated by the
solar heating system.
5862730GB
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