Hello Vyavahare_Priyanka,
the SmartGrid function can be executed directly on the heat pump control via contacts 216.1 (B) or 216.4 (A). This is controlled via a separate contactor, which establishes a potential-free contact between X3.1 and 216.1 (B) or 216.4 (A).
Note:
- If Smart Grid is connected to the two digital inputs on the basic circuit board ("Enable Smart Grid 7E80" on "4"), the external connection for the heating/cooling circuits must not be switched on ("Remote control 2003" on "2"). Otherwise Smart Grid is not active.
- The electric supply company block is included in the Smart Grid range of functions. Therefore, in this case, the electric supply company block signal must not be connected to connections X3.6 and X3.7.
The functions that can be executed via these are as follows:
■ No contact closed: Heat pump is in normal operation
■ Contact (A) closed: electric supply company block
- Compressor OFF
- Heating water instantaneous water heater can be switched on ("Output for heating water instantaneous water heater with electric supply company block 790A").
Contact (B) closed: Operation of the heat pump with adjusted temperature setpoints for various functions. The changes are set with the following parameters:
- DHW heating: "Smart Grid setpoint increase for DHW heating 7E91"
- Buffer tank heating: "Smart Grid setpoint increase for heating water buffer tank 7E92"
- Room heating: "Smart Grid setpoint increase for room temperature heating 7E93"
- Room cooling: "Smart Grid setpoint reduction for room temperature cooling 7E95"
- The compressor only switches on when required. The valid switch-on conditions for the respective function must be fulfilled. A time phase must be active in the time program for the respective function.
- The adjusted temperature setpoints have no effect on the auxiliary heaters. The additional heaters are switched off at the limits that apply without Smart Grid.
■ Contact (A) and (B) closed: The system components are heated to the set max. temperatures or cooled to the minimum temperatures. The compressor switches on
on immediately, even if no time phase is active in the time program.
Max. Temperatures for various functions:
- DHW heating: "Max. DHW temperature 6006"
- Buffer tank heating: "Max. buffer tank temperature 7204"
- Room heating: "Max. flow temperature heating circuit 200E"
- Room cooling: "Min. flow temperature cooling 7103"
- The heating water instantaneous water heater may be switched on to reach the max. temperatures. The max. level can be set ("Smart Grid release electric heating 7E82").
- The max. temperature setpoints have no influence on the other auxiliary heaters, e.g. external heat generators. The auxiliary heaters are switched off at the limits that apply without the Smart Grid.
- The system components are heated or cooled one after the other according to the defined priorities, e.g. domestic hot water heating before room heating.
- The "Switch-off limit heat pump bivalent operation 7B0F" is shifted to -30 °C so that the heat pump remains in operation even at low outside temperatures.
For the PV function of the system, a 3-phase Modbus energy meter is required, which can be obtained from us. However, the meter can only be used if no battery storage is included in the system. Data for the PV energy meter can be read out via the Vitogate.
Best regards
Flo
