20
912.807.1 - GB
INSTALLATION AND OPERATING MANUAL
12.3 STORAGE BOILER WITH DHW THERMOSTAT (COMMERCIALLY AVAILABLE)
This application is not recommended as it does not allow all the functions on the electrical board of the module
(DHW adjustment, anti-legionellosis,…) to be used.
To electrically connect the storage boiler and the module, proceed as follows, also consulting the instructions supplied
with the storage boiler and figure 10:
SIRIUS SAT module
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After unplugging the appliance, remove the cover of the external connector and replace the electric heater at the ends of
terminals T2 – S3 with the supplied version.
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(C – 1) to the terminals L1 – N of the external connector:
Storage boiler DHW thermostat:
terminals
L1 - N
r DMPTFUIFDPOOFDUPSDPWFS
attention: make sure that the storage boiler water temperature (set using the storage boiler thermostat) is set to
a lower temperature than that of the system water. Otherwise, the module will not be able to complete heating
the water in the storage boiler.
Position the DHW potentiometer (figure 14.B) of the electronic board at the maximum temperature (65°C).
Figure 10: electrically connecting a storage boiler with thermostat (commercially available)
0904_2407 / CR_0092
SIRIUS SAT
CHECK POSITION OF
SCREW CONNECTORS
(RED AND BLACK)
RED
BLACK
L1-N: STORAGE BOILER THERMOSTAT
ISB = STORAGE BOILER COIL INLET
USB = STORAGE BOILER COIL OUTLET
STORAGE BOILER
WITH
DHW THERMOSTAT
DHW THERMOSTAT
CONTACTS
REPLACE
ELECTRICAL
RESISTANCE
