TD SOLUS II:
Description of the combined storage tank
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IMPORTANT NOTES:
Only transport the storage tank vertically in vehicles
Use diffusion-resistant pipes for heating
Support sleeves must be used when using soft Cu pipes.
The storage tank may only be run with water
without additives.
The max. permitted storage tank inlet temperature of
the solar heat exchanger is 110 °C.
1
Description of the combined
storage tank
The SOLUS II series is a combined storage tank with internal
heat exchangers for solar charging and hygienic water
heating.
The series was designed specifically for combining solar
power systems with oil, gas, pellet or solid fuel boilers. The
connection of the buffer storage tank to the boiler avoids
frequent activation and deactivation, thus reducing emis-
sions.
COMFORT line: SOLUS II 550, SOLUS II 800 and SOLUS II
1000
These storage tanks are highly efficient and convenient,
while also offering excellent economy. They are suitable for
most applications, but not for heat pumps with a supply
temperature of max. 55 °C.
SOLUS II 800 S / SOLUS II 1000 S
SOLUS II 800 S / SOLUS II 1000 S storage tanks do not
have hot water heat exchangers. This is useful for operation
with an existing water storage tank or transfer station, for
example. Otherwise, the storage tanks are the same as the
SOLUS II 800.
SOLUS II 800 PM / SOLUS II 1000 PM
This buffer module does not have integrated heat exchang-
ers. Otherwise, the dimensions and connections are the
same as for the SOLUS II 800 / SOLUS II 1000. This allows
the storage tank capacity to be increased simply in conjunc-
tion with the SOLUS II 800, 850 and 1000 , e.g. for solid
fuel boilers. See section 5.3, page 11 for connection instruc-
tions.
COMFORT-PRO line:
SOLUS II 560 L / 850 L / 1050 L / 2200 L
The SOLUS storage tanks in the COMFORT-PRO line offer
other advantages, which make them the leading edge tech-
nology for combined solar storage tanks:
Designed for particularly high hot water tap output. The-
refore, they are even suitable for apartment buildings, or
the temperature of the hot water stand-by volume can be
kept to a minimum. This facilitates increased solar utilisa-
tion and is a requirement for operation with heat pumps.
Heat loss is minimised via the aluminium reflector in the
cylinder and the PP inserts for practically complete pre-
vention of microcirculation losses via the storage tank
connections.
SOLUS II 560 NFL
On request, the SOLUS II 560 L is also offered with an addi-
tional heat exchanger as a local and district heat transfer
station with a solar heat exchanger and integrated water
heater. It is also well suited for system separation for under-
floor heating systems. Further information available on re-
quest.
1.1
Special advantages
Consolar stratified conduction system:
In the patented thermosiphon heat exchangers, optimised
flow control and the chimney effect result in very low-loss
heat transfer in the counter-flow. The heat transfer is consid-
erably better than with free-flow heat excangers with the
same surface area.
Hygienic water heating:
Conventional hot water storage tanks can have hygiene
problems (legionella). In the
SOLUS II series, the hot water is heated in a continuous
flow, and is therefore in a perfect hygienic condition even at
temperatures under 60 °C.
Rapid availability thanks to stratified charging:
The riser tube with chimney effect and the
Consolar control logic ensure that the storage tank water is
immediately heated to a usable hot water temperature and
stratified to the top. If the irradiation is low, the middle stor-
age tank area is charged, or feeding is implemented via an
automatic ball valve for pre-heating the lower storage tank
area.
High storage capacity through stratified discharging:
Stratified discharging significantly increases the thermal
capacity of the SOLUS II storage tanks compared with con-
ventional combined storage tanks with fresh water helical
tubes. This results in less frequent backup heating and
longer availability.
Reduced system costs:
The small pipe diameter required in the solar circuit, and the
integrated boiler supply switching valve reduce the installa-
tion costs for the system.
