Bosch MM100 - Connection Diagrams with System Schematics

6 720 813 621 (2014/12)MM100
Installation | 17
System components:
230 V AC Mains voltage
BT Buffer cylinder (Buffer Tank)
BUS BUS system EMS 2/EMS plus
CON User interface EMS 2/EMS plus (Control)
HS... Heat Source
HS1: heating appliance such as a wall mounted
Greenstar gas condensing boiler
HS2: boiler such as a gas heating boiler
HS3: heat pumps such as an air to water heat pump
IC1 Switching contact for external heat requirement ()
in the associated heating zone,  additional
accessories
MC1 Temperature switch in assigned heating circuit
(optional for heating circuit without mixer; if there is
no temperature switch, connect jumper ( Fig. 1
[2], page 91) to terminal MC1)
MM100 module MM100
PC1 Heating pump in the assigned heating circuit
PW1 Cylinder primary pump in assigned cylinder primary
circuit, e.g. after low loss header (coding card on 9
or 10)
PW2 Recirculation pump in the associated hot water
system (code switch on 9 or 10)
T0 Flow temperature sensor on the low loss header or
the buffer cylinder
TC1 Flow temperature sensor in assigned heating circuit
TW1 Cylinder temperature sensor in the assigned
cylinder primary circuit (coding card on 9 or 10)
VC1 Mixing valve actuator in assigned heating circuit
with mixer
1) Depending on the user interface installed,
maximum 4
3.3.4 Connection diagrams with system schematics
The hydraulic diagrams are only schematic illustrations and
provide a non-binding indication of a possible hydraulic circuit.
▶ Install safety equipment in accordance with applicable
standards and local regulations.
▶ For further information and options, refer to the technical
guides or tender specification.
Heating circuit function Fig. / Page
with mixer  19 / 98 
Heating  20 / 99  –
without mixer  21 / 100 
Cylinder primary circuit with separate cylinder primary pump
1)
and DHW circulation pump  22 / 101 – 
constant  23 / 102 – 
1 unmixed, 3 mixed, 1 cylinder primary circuit with heating appliance  24 / 103 – 
1 unmixed, 3 mixed, 1 cylinder primary circuit with boiler  25 / 104 – 
1 unmixed, 3 mixed, hot water with heat pump  26 / 105  –
1 unmixed, 2 or more mixed, 2 cylinder primary circuit with heating appliance  27 / 106 – 
Table 5 Wiring diagrams with system examples for the module in combination with heat pump ( ) or other heat source ( )
1) e.g. downstream of low loss header