TD SOLUS II:
Connection with boiler buffering
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propylene, brass and EPDM. The SOLUS II series is free of
PVC, CFC, HFCs and fibreglass insulation.
2.8
Standards
The SOLUS II series of storage tanks are vertical units made
of St 37-2, in accordance with DIN 17100 with quality cer-
tification. The cylinders comply with DIN 4753 for hot water
storage for heating systems with supply temperatures of up
to
90 °C, in accordance with DIN 4751 Part 1.
2.9
Return acceptance statement
At the end of their long service life, Consolar takes back the
storage tanks and reuses the materials. For this purpose, the
storage tank is to be fastened to a pallet, and sent back to
Consolar. Upon arranged handling through Consolar, the
storage tank is to be put in position and made ready to be
loaded onto an HGV with a lifting platform, and Consolar is
to be informed for collection.
NOTE:
The information and diagrams in this technical documen-
tation do not claim to be complete, and are no replace-
ment for professional planning. Subject to technical mo-
difications and errors.
3
Connection with boiler buf-
fering
Application, use
Solar heating support
Buffering for gas, oil, pellet and solid fuel boilers
Water heating
3.1
Advantages, limits
Solar heat can be used for space heating, especially if the
heating circuit supply temperatures are lower than the hot
water standby temperature.
Even great boiler outputs are buffered. This facilitates
longer runtimes and standstill times with low emissions.
Even in modulating boilers, buffering may be beneficial
for the non-modulating partial load range.
The boiler can cool down during standstill.
3.2
Connection rules
The heating circuit supply is generally fitted to the corre-
sponding storage tank connection (HS), the boiler supply
is connected to BS.
The boiler return is connected to R1/2. It is only con-
nected to R3 for wood-fired boilers which require a large
buffer volume.
The heating circuit return is generally connected to the
same connection as the boiler return. A T connector is
provided for this on storage tank connection R1/2 to pre-
vent wrong circulation through the boiler when the boiler
pump is at standstill.
If the return temperature of the heating circuit is low (wall
or underfloor heating), the lowest connection on the
SOLUS II is selected.
The flow for hot water recharging must be set such that
the boiler supply temperature is approx. 5 K above the
hot water backup heating temperature set.
A sample system diagram with collectors and hot water
connection is provided below. In the other diagrams, only
the boiler and heating circuit are shown. The diagrams are
incomplete to make them clearer - e.g. safety equipment is
not shown.
Detailed connection diagrams are provided from section 0
on page 12, as well as in the technical documentation for
the CONTROL series.
