Overview Of The Terminal Connections - Bosch Thermotechnik EMS 2 Manual De Usuario

28 | Mounting
3.2.4

Overview of the terminal connections

This overview shows examples of system components that can be
connected for all of the terminals of the module. The components
identified with * (such as VS1 and VS3) of the system are possible
alternatives. Depending on the module's use, one of the components is
connected to the "VS1/PS2/PS3" terminal.
VS1,
PS2, PS3
N 74 75 N 74 75 N 74 75
4
74 75
N N
M M
VS3*
N L N L N L
M
M M
PS5 VS2 PS3
Legend to the figure above and Fig. 20 to 41 (without terminal designation).:
Solar thermal system
Function
Additional functions in the solar thermal system (shown in
grey)
Transfer or primary store system
Transfer or primary store function
Additional functions in the transfer or primary store system
(shown in grey)
Earth lead

Temperature/temperature sensor
BUS connection between heat source and module
No BUS connection between heat source and module
[1] 1st cylinder
[2] 2nd cylinder
[3] 3rd cylinder
230 V AC Mains voltage connection
BUS EMS 2/EMS plus BUS system
M1 Pump or valve controlled via temperature differential
controller
PS1 Solar circuit pump for collector array 1
PS3 Cylinder primary pump for cylinder 2 with pump
(solar thermal system)
PS4 Solar circuit pump for collector array 2
PS5 Cylinder primary pump when using an external heat
exchanger
PS6 Cylinder transfer pump for transfer system (solar thermal
system) without heat exchanger (and thermal disinfection)
PS7 Cylinder transfer pump for transfer system (solar thermal
system) with heat exchanger
PS9 Thermal disinfection pump
PS10 Active collector cooling pump
PS11 Pump on the heat appliance side (primary side)
PS12 Pump on the system side (secondary side)
6 720 815 257 (2014/10)
120/230 V AC
PS5 VS2 PS4
N 63 N 43 44 N 63
120/230 V AC
PS1
VS1/PS2/PS3
120/230VAC 120/230VAC
N L N L N 74 75 N 63
N L N L
M M
230 V AC 230 V AC VS1* PS1
More complex solar systems can be created in combination with a
second solar module. Terminal assignments deviating from the terminal
overview are possible ( connection diagrams with system
schematics).
MS 200
≤ 24 V
TS4 TS5 TS6 TS7 TS8 IS2
1 2 1 2 1 2 1 2 1 2 1 2 3 4 1
≤ 24 V
TS3 IS1 OS1
TS1 TS2
1 2 1 2 1 2 1 2 3 4 1 2 3
1 2 3
PWM
0-10V
TS1 TS2 TS3 TS13 PS1
V
WM1
PS13 DHW circulation pump
MS 100 Module for standard solar thermal systems
MS 200 Module for extended solar thermal systems
TS1 Temperature sensor for collector array 1
TS2 Temperature sensor at bottom of cylinder 1 (solar thermal
system)
TS3 Temperature sensor at middle of cylinder 1 (solar thermal
system)
TS4 Temperature sensor for heating return to the cylinder
TS5 Temperature sensor at bottom of cylinder 2 or swimming
pool (solar thermal system)
TS6 Heat exchanger temperature sensor
TS7 Temperature sensor for collector array 2
TS8 Temperature sensor for heating return from the cylinder
TS9 Temperature sensor at top of cylinder 3; only connect to
MS 200 if the module is installed in a BUS system without a
heat appliance
TS10 Temperature sensor at top of cylinder 1 (solar thermal
system)
TS11 Temperature sensor at bottom of cylinder 3 (solar thermal
system)
TS12 Temperature sensor in solar collector flow (heat meter)
TS13 Temperature sensor in solar collector return (heat meter)
TS14 Heat source temperature sensor
(temperature differential controller)
TS15 Heat sink temperature sensor
(temperature differential controller)
TS16 Temperature sensor at bottom of cylinder 3 or swimming
pool (solar thermal system)
TS17 Temperature sensor at heat exchanger
TS18 Temperature sensor at bottom of cylinder 1 (transfer /
primary store system)
OS2
2 3
BUS BUS
1 2 1 2
BUS BUS TS4 TS5 TS6 TS7
1 2 3
PWM
0-10V
TS8 TS12 PS3
6 720 807 456-24.2O
MS 200