Bosch SSB1000 TL - Boiler Cascade System; Extended Cascade Configuration with BMS

SSB 6720892984 (2019/02) US
Boiler cascade | 41
6 Boiler cascade
6.1 Extended 4x2 boiler/burner cascade with Touch Screen and Building Management System (BMS)
Demand: 0-10V / OpenTherm / On-Off
T outside
System sensor D2 is
Cascade system sensor
Boiler sensor
J6 J8 Iso + Power
S1 = on
J8
S1 = off
MANAGING
BOILER
Boiler sensor
J6 J8 Iso
S1 = off
J8
DEPENDENT
BMS bus
S1 = off
BOILER
Max. 4 boilers
90xMN -
900PBTouch Screen
Power Supply
Max. 2 burners or modules
90xMN –
–
–
D2
900PB
Max. 2 burners or modules
RS485
RS232
Power Supply
Touch Screen
RS485
RS232
90xMN D1
Boiler manager
90xMN –
–
–
D2
90xMN D1
Boiler manager