Installation Instructions

6 720 813 621 (2014/12) MM100
16 | Installation
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”).
Legend to the above figure and Fig. 19 to 27 from page 98:
Possible with a heat pump ( ) or not possible with
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)
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
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.
6 720 810 981-01.2O
BUS BUST0 TC1
M
PC1
PW1*
NL
MC1
M
VC1
N
M
N
4
43 44
PW2*
TW1*
MD1
%-rel
N7475
VC1
M
PW2*
NL
230 V AC 230 V AC
N L N N 43 N 6344 15 16L
120/230VAC 120/230VAC
MC1VC1 PC1
1212 12
TC1
T0 BUS
MM100
12
BUS
120/230 V AC
≤ 24V
≤ 24V
12 2
OC1
31
MD1
0
1
2
3
4
5
6
7
8
9
10
10
1)