17
5
Solar collector
6
Boiler
7
Heating circuit
8
Cylinder temperature sensor (on the heating
water side)
9
Fill valve
qP
Temperature sensor, high limit safety cut-out
(STB)
A
C
B
Fig. 17
1.
Install the heat supply control unit.
2.
Check connections
A
and
B
for leaks and
retighten if required.
Tightening torque: 45 to 50 Nm
3. When using copper pipes:
Insert support sleeves
C
supplied.
Tightening torque for both union nuts: 30 Nm
4.
Install the flow line with a rise and fit an air vent
valve at the highest point.
5.
Only for heating water flow temperatures in excess
of 110 °C:
Install a type-tested high limit safety cut-out, if one
has not yet been installed in the system (see
pages 16 and 19). For this, use a temperature
limiter and a high limit safety cut-out.
Connections on the DHW side
■
For the DHW connection, observe DIN 1988 and
DIN 4753 (
c
: SVGW regulations)
■
Connect all pipework with detachable fittings.
■
Seal any connections that are not required with red
brass caps.
■
Equip the DHW circulation pipe with a DHW circula-
tion pump and a check valve.
■
Connection of the DHW circulation pump:
–
Connection to the boiler control unit, provided this
is equipped with a DHW circulation pump connec-
tion.
–
Connection with a time switch, if there is no DHW
circulation pump connection on the boiler control
unit.
Connecting the heating water side and solar side
(cont.)
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Summary of Contents for CVBA
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