Smart Grid - Viessmann VITOTRONIC 200 Service Instructions Manual

Smart Grid

The Smart Grid functions are used to match heat
pump operation to the available energy in the grid. To
enable Smart Grid, set "Enable Smart Grid 7E80" to
"1" or "4".
If there is only a small amount of energy in the grid, the
heat pump can be blocked. If there is excess energy,
the power supply utility can specifically issue a
demand for the heat pump.
Connection to EA1 extension
Requirement: "Enable Smart Grid 7E80" set to "1".
[{A [{S
DE DE
1 2 1 2 3 4
B C
Fig. 9
EA1 extension
A
KM-BUS connection to the controller and sensor
B
PCB
Floating contact 1: The agreement of the power
C
supply utility may be required
Note
■ If Smart Grid is enabled ("Enable Smart Grid 7E80"
set to "1"), both inputs DE2 and DE3 cannot be
used for signals "External demand" or "External
blocking".
■ The power-OFF function is integral to Smart Grid.
The power-OFF signal must therefore not be con-
nected to connections X3.6 and X3.7.
A
[{D [{{]
DE 0-10V
5 6 + -
D
Smart Grid functions are switched on via 2 floating
■
contacts of the power supply utility.
■ Connection options for the two floating contacts:
– At the EA1 extension in accordance with Fig. 9
– At the heat pump control unit in accordance with
Fig. 36
f-]
A
N L1
E
Floating contact 2: The agreement of the power
D
supply utility may be required
Power supply 1/N/PE 230 V/50 Hz
E
Function description
35