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Instruction manual SGE 78
is
12.10 Solar heating system configuration
Use the solar heating system settings menu to reach
the menus shown here:
12.10.1 Setting the drain-back tank
Use this menu to specify whether the solar heating
system is equipped with a drain-back tank for the
heating fluid. Call up the menu as follows:
•:
SETTINGS SOLAR
|
DRAIN BACK
The default is
NO
.
Note
During commissioning, it is important to check
whether this setting corresponds with the
configuration of the solar heating system.
12.10.2 Switching on the solar pump
This menu lets you switch on the pump in the solar
heating system manually. Call up this menu as follows:
•:
SETTINGS SOLAR
|
TEST SOLAR PUMP
The following display appears.
When
START
is selected, the pump will start to run for
two minutes. Once the 2 minutes have elapsed, the
pump stops running again.
12.10.3 Setting the solar limit
The solar limit temperature is the maximum water
temperature obtained in the appliance via the solar
heating system (measured by sensor T
1
).
This value can be set between 65 and 80°C. The
default value is 65°C.
If you set the solar limit higher than the set
point (11.4 "
Setting the water temperature"), then the
solar pump will be started in order to heat the water
further once the set point has been reached. However,
this only makes sense if the solar heating system is
actually generating heat. This makes use of the
difference between the temperature at the top of the
solar collector (S
1
) and that in the appliance
(measured by S
2
).
Call up the menu for the solar limit as follows:
•:
SETTINGS SOLAR
|
SOLAR LIMIT
Please refer to the table (3.4.2 "General and electrical
specifications") for the adjustment range and default
value for each appliance.
12.10.4 Setting the solar difference
The solar difference is a value that influences how the
operating cycle of the water heater proceeds. Call up
the menu as follows:
•:
SETTINGS SOLAR
|
SOLAR DIFFERENCE
Please refer to the table (3.4.2 "General and electrical
specifications") for the regulation interval and default
value for each water heater.
12.10.5 Setting the Q/T sensor
The energy contribution of the solar heating system
can be calculated (12.10.6 "
Displaying contribution")
using the Q/T sensor. This calculation is only possible
if your installation is equipped with such a Q/T sensor.
If this is the case, then you must set this value to
YES
,
otherwise
NO
. Call up the corresponding menu as
follows:
•:
SETTINGS SOLAR
|
Q/T SENSOR
SETTINGS SOLAR
»DRAIN BACK
^ TEST SOLAR PUMP
È SOLAR DIFFERENCE
Q/T SENSOR
SOLAR LIMIT
CONTRIBUTION
TEMPERATURES
DRAIN BACK
YES
»NO
TEST SOLAR PUMP
»START
SOLAR LIMIT
65ÉC
SOLAR DIFFERENCE
5ÉC
Q/T SENSOR
YES
»NO