n
Function 0-10 V
This function controls the boiler using an external system that
includes a 0-10 V output connected to the 0-10 V input. This command
imposes to the boiler a temperature or power setpoint. Be sure that
parameter
BOILER MAX
is set higher than
CONS.MAX 0-10V
if the
control is done by temperature.
1
Flow temperature (°C) or power (%) setpoint
2
Voltage at input (V) - DC
3
0 V
4
CONS.MIN 0-10V
5
CONS.MAX 0-10V
6
VMIN/OFF 0-10V
7
VMAX 0-10V
8
10 V
x
Voltage at input
y
Boiler temperature or sliding output
If the input voltage is less than
VMIN/OFF 0-10V
, the boiler is off.
The boiler temperature setting corresponds strictly to the 0-10 V
input. The secondary boiler circuits continue to operate but have no
impact on the water temperature in the boiler. If using the 0-10 V input
and a secondary boiler circuit, the external regulator providing this
0-10 V power supply must always request a temperature at least
equal to the needs of the secondary circuit.
n
MAX FLOW
In order for the regulator to calculate the quantity of heat produced by
the installation (parameter kWh), input parameter
MAX FLOW
. The
parameter
MAX FLOW
is equal to the flow in litres per minute in the
solar circuit.
Establish the
MAX FLOW
value with the help of the table below,
according to the configuration of the installation and the number or
surface area of collectors.
When the flow is input incorrectly, the display kWh will also be
incorrect.
The quantity of heat (kWh value) can only be used for
checks carried out for personal reasons.
Flat solar collectors
Solar panel
installation
Area (m
2
) Number of
panels
Flow rate
(l/h)
Flow rate
(l/min)
3...5
1 or 2
400
6,7
6...8
3 or 4
300
5,0
8...10
4 or 5
250
4,1
M001679-A
5
1
4
3
6
2
7
8
AFC 18 - AFC 24 - AFC 30
6. Commissioning
09/07/2015 - 300026439-07
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