DeDietrich G25 Manual de Serviço Página 61

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15/02/2011 - 300014279-001-J DTG(E)130 - 35/45/65/90/115 Eco.NOxPlus
12. Installer settings
` CT.TEL:
Defines the nature of the contact (open or closed) which
activates the function associated with the telephone input.
` I.TEL:
Used to define the function associated with the telphone input. The
telephone input on DIEMATIC is located between terminals 1 and 2
on the telephone terminal block.
` NIGHT
This parameter is displayed if at least one circuit does not
include a room sensor.
For circuits without a room sensor:
-
NIGHT :DEC.
(Reduced): The reduced temperature is maintained
during reduced periods. The circuit pump operates constantly.
-
NIGHT :STOP
(Stop): Heating is shut down during reduced
periods. When the installation's antifreeze function is active, the
function
NIGHT DEC.
is activated.
For circuits with a room sensor:
-
NIGHT : STOP
is active when the room temperature is higher than
its setting.
-
NIGHT DEC.
is active when the room temperature is lower than its
setting.
` 0-10 V function
This function controls the boiler using an external system that
includes a 0-10 V output connected to the 0-10 V input. This control
imposes an instruction set temperature on the boiler. The parameter
BOILER MAX must be higher than CONS.MAX 0-10V and BOILER
MIN ower than CONS.MIN 0-10V.
1. Instruction set outlet temperature (°C)
2. Power input signal (V) - DC
3. 0V
4. CONS.MIN 0-10V
5. CONS.MAX 0-10V
6. VMIN/OFF 0-10V
7. VMAX 0-10V
8. 10 V
(a) Boiler temperature
(b) Voltage at input
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.
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