DeDietrich AWHP 6 MR Installation And Service Manual page 99

AWHP MIT-IN iSystem
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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.
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.
Instruction set outlet temperature (°C)
Power input signal (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
98