E82 Smart Grid Enable Elec Heat - Viessmann VITOTRONIC 200 Service Instructions Manual

Calling up the parameter group
1. Service menu:
Press OK + simultaneously and hold for
å
approx. 4 s.
2. "Coding level 1"
7E80 Enable Smart Grid
The power supply utility can block or specifically issue
a demand for the compressor via Smart Grid. This
requires 2 floating contacts of the power supply utility
to be connected, either to the digital inputs of the heat
pump or to the EA1 extension.
Subject to the switching status of the floating contacts,
the following functions can be activated by the power
supply utility:
■ Standard compressor operation
■ Compressor is switched OFF (power-OFF).
■ Set temperatures are increased for DHW heating,
central heating and buffer cylinder heating and low-
ered for central cooling. The modifications are adjus-
ted via the following parameters:
– "Smart Grid set value increase for DHW heating
7E91"
– "Smart Grid set value increase for htg wtr buff
7E92"
"Smart Grid set value increase for centr htg
–
7E93"
– "Smart Grid set value decrease for room t cool
7E95"
■ Compressor is switched on. System components are
heated to the max. set temperatures or cooled to the
min. set temperatures.

7E82 Smart Grid Enable elec heat

If system components are heated to the max. set tem-
perature via Smart Grid, the instantaneous heating
water heater can be switched on at the set stage if
required.
!
!
Parameter group Smart Grid
3. "Smart Grid"
4. Select parameter.
Value Meaning
"0" Smart Grid is switched off.
"1" Smart Grid is active.
Connection of floating contacts to the digital
inputs of the EA1 extension
"2" Never adjust
"3" Never adjust
"4" Smart Grid is active.
Connection of the floating contacts to digital
inputs 216.1 and 216.4 on the main PCB
Note
If external hook-up is set for the heating/cool-
ing circuits ("Remote control 2003" set to
"2"), Smart Grid via the digital inputs of the
main PCB is not possible. In this case, this
setting has no effect.
Value Meaning
"0" Instantaneous heating water heater does not
start up.
"1" Stage 1 of the instantaneous heating water
heater may be switched on.
"2" Stage 2 of the instantaneous heating water
heater may be switched on.
"3" Stage 1 and stage 2 of the instantaneous
heating water heater may be switched on.
The instantaneous heating water heaters of
all lag heat pumps are enabled for operation
with Smart Grid. The respective enabled
stage is set with this parameter at the associ-
ated lag heat pump.
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