X85; „ Building Management System (Bms); Buffer Cylinder - STIEBEL ELTRON STE Inbetriebnahme

COmmISSIONING
Controller menu
… „

Building management system (BMS)

… …„ Activate BMS
… …„ Modbus mode
… …„ Address
… …„ Baud rate
… …„ Parity
… …„ Port number
Parameter
Number of stop bits
The heat pump can be monitored and controlled via a Modbus.
The heat pump sends data to the Modbus on request.
… …„ Activate BMS
f Activate or deactivate the function. f
When the function is activated, there is a higher ranking control
unit.
… …„ Modbus mode
f Set how communication with the higher ranking control unit f
takes place.
RTU
Communication takes place directly via an external Modbus.
TCP
Communication takes place via a router at the RJ45 connector for
the heat pump.
… …„ Address
Can only be adjusted if the "RTU" Modbus mode is selected.
f Set the correct address. f
Baud rate
… …„
Can only be adjusted if the "RTU" Modbus mode is selected.
f Set the speed, at which the data should be transferred. f
… …„ Parity
Can only be adjusted if the "RTU" Modbus mode is selected.
f Set the required parity. f
… …„ Port number
Can only be adjusted if the "TCP" Modbus mode is selected.
44 | STE
… „

Buffer cylinder

… …„ Activate buffer cylinder mixer circuit control
… …„ Heat pump connected to cylinder
… …„ Buffer cylinder temperature, automatic mode
… …„ Required buffer temperature
… …„ Buffer cylinder overcharge
… …„ Booster heater increase
… …„ Booster heater max. application limit
… …„ Buffer cylinder configuration
… …„ Heat pump start offset
… …„ Booster heater start offset
… …„ Summer mode permissible
Parameter
Buffer cylinder temperature
Current temperature in buffer cylinder
System flow
Current temperature in system flow
… …„ Activate buffer cylinder mixer circuit control
f Activate or deactivate the function. f
When the function is activated, there is a buffer cylinder with
mixer circuit control in the heating system.
The mixer circuit controller must be set lower than heating cir-
cuit 1, otherwise it will be purely mixer circuit control.
… …„ Heat pump connected to cylinder
Buffer cylinder temperature, automatic mode
… …„
Can only be activated if the "Activate buffer cylinder mixer circuit
control" function is switched on.
f Activate or deactivate the function. f
When this function is activated, the appliance automatically regu-
lates the set mixer circuit temperature under consideration of the
"Buffer cylinder overcharge".
… …„ Required buffer temperature
Can only be adjusted if the "Buffer cylinder temperature, auto-
matic mode" function is deactivated.
f Set the required DHW temperature for the cylinder capacity. f
… …„ Buffer cylinder overcharge
Can only be adjusted if the "Buffer cylinder temperature, auto-
matic mode" function is activated.
f Set the temperature deviation to which the buffer cylinder f
should be heated.
The overcharge is an increase of the set mixer circuit temperature
and is therefore an offset value for the mixer circuit.
Unit
°C
°C
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