DeDietrich AWHP-2 MIT-IN-2 iSystem Installation And Service Manual page 109

AWHP-2 MIT-IN-2 iSystem
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n NIGHT
For circuits without a room sensor:
4 NIGHT :DEC. (Reduced): The reduced temperature is maintained
during reduced periods. The circuit pump operates constantly.
4 NIGHT :STOP (Stop): Heating is shut down during reduced
periods. When installation antifreeze is active, the reduced
temperature is maintained during reduced periods.
For circuits with a room sensor:
4 When the room temperature is lower than the room sensor set
point: The reduced temperature is maintained during reduced
periods. The circuit pump operates constantly.
4 When the room temperature is higher than the room sensor set
point: Heating is shut down during reduced periods. When
installation antifreeze is active, the reduced temperature is
maintained during reduced periods.
n Function 0-10 V
This function is used to command the heat pump through an external
system comprising a 0-10 V outlet connected to the 0-10 V inlet on
the SCU PCB. This command imposes a set point temperature on the
heat pump. It will be necessary to ensure that the parameter MAX
MIT is higher than CONS.MAX 0-10V.
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If the input voltage is less than VMIN/OFF 0-10V, the heat pump is
off.
The heat pump set point temperature corresponds strictly to the
0-10 V inlet. The secondary circuits on the heat pump continue to run
but have no effect on the heat pump's water temperature. If using the
0-10 V inlet and a secondary circuit on the heat pump, the external
regulator supplying this 0-10 V voltage must always request a
temperature at least equal to the needs of the secondary circuit.
This parameter is displayed if at least one circuit does not
include a room sensor.
Instruction set outlet temperature (°C)
Input supply voltage (V) - DC
0 V
CONS.MIN 0-10V
CONS.MAX 0-10V
VMIN/OFF 0-10V
VMAX 0-10V
10 V
Voltage at input
Temperature of the heat pump
5. Commissioning
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