Overview Of The Terminal Assignment - Bosch Thermotechnik EMS 2 MM100 Instrucciones De Instalación

16 | Installation
The maximum power consumption of the
connected components and assemblies must not
exceed the output stated in the module
specification.
▶ If the mains voltage is not supplied via the
heat source electronic system, install a
standard isolator (in accordance with
EN 60335-1) on site to disconnect all poles
from the power supply.
VC1
N 74 75
N L
M
PW2*
230 V AC 230 V AC
Legend to the above figure and Fig. 19 to 27 from page 98:
Possible with a heat pump (
a heat pump (
Possible with other heat sources as heat pumps
( ) or not possible (
Earth lead

Temperature/temperature sensor
L Phase (mains voltage)
N Neutral conductor
Terminal designations:
230 V AC Mains voltage connection
BUS BUS system connection EMS 2
MC1 Temperature switch (monitor circuit)
MD1 Volt free contact for constant heating circuit:
external signal for heat requirement () – heating
pump on/off ( additional accessories)
6 720 813 621 (2014/12)
120/230 V AC
VC1
120/230VAC 120/230VAC
N L N L N 43
N N
VC1
PW2*
) or not possible with
)
)

3.3.3 Overview of the terminal assignment

This overview shows which system parts can be connected.
The system components identified with an asterisk (*) are
possible alternatives. Depending on the use of the module
(encoding on the module and configuration with the remote
control), one of the components is connected to the terminal
(such as "PC1" or "PW1" to terminal "PC1"). Connect the
system parts according to the wiring diagram ( Tab "Wiring
diagrams with system schematics").
MM100
5 6
4
3 7
1)
2 8
1 9
10 10
0
MC1 PC1
44 15 16 N 63
4
43 44
N L
M M
M
MC1 PC1
PW1*
OC1 No function
PC1 Pump connection (pump circuit)
T0 Temperature sensor connection to low loss header
or a buffer cylinders (temperature sensor)
TC1 Connection for heating circuit flow temperature
sensor or cylinder temperature sensor
(temperature sensor circuit)
VC1 Mixing valve actuator connection (valve circuit):
Terminal 43: mixer open (for warmer heating; for
cooler cooling (cooling function)
Terminal 44: mixer closed (for cooler heating; for
warmer cooling (cooling function)
-or-
DHW circulation pump connection in DHW circuit
(coding card on 9 or 10):
Terminal 43: DHW circulation pump phase
Terminal 44: not assigned
≤ 24V
OC1 MD1
1 2 3 1 2
≤ 24V
T0 TC1 BUS BUS
1 2 1 2 1 2 1 2
T0 TC1 BUS BUS
TW1*
6 720 810 981-01.2O
%-rel
MD1
MM100