Bosch Thermotechnology, Cotswold Way, Worcester WR4 9SW
B Electrical work may only be carried out by a qualified
Switching states
electrician.
B Carry out electrical work in accordance with the current
standards and local regulations.
Heating circuit
B Install mains connection so that it is fixed and in the correct
1)
phase.
M
Switch
position
B Ensure that the total current does not exceed the rating
K1
2)
K2
K3
stated on the data plate.
B Ensure that a circuit breaker in accordance with applicable
standards is present to disconnect all poles from the mains
power supply. If there is no circuit breaker present, you must
install one.
0
M
3)
3)
3)
0
3)
Pump
control
mode
AUT
0
K6
4)
L
3)
AUT
AUT
K3
K4
K2
Colder
control
mode
Hotter
control
mode
B Do not use the yellow/green earth lead as a control cable.
B Before opening the control unit, isolate all poles of the
heating system via the circuit breaker. Secure against
unintentional reconnection.
K1
B Fasten the wires of each electrical cable to each other (e.g.
N
with cable ties) or strip the cable sheath short, to prevent the
risk of voltage flashes between 230 V and low voltage
through unintentional loosening of a wire at the terminals.
Drinking water circuit
B Observe the safety instructions in the documentation of the
Switch
position
2PZ
2PS
13 14
1SH
41
24 25
2FB
1PH
61 63
43 44
1
2BF
2WF
2
1
2
3
1FV
1
2
-
+
1
2
control unit and the modules used.
2
3
5)
4
5)
K6
Pump
control mode
Control
mode
Control voltage 230 V
AWG 14, max. 5 A
0
AUT
5)
K4
1WF
1
Low voltage
0.4 mm2 - 0.75 mm2 / AWG 18
5)
1)
2)
3)
4)
5)
Module - Front view
7)
H03xx, 1.5 mm2
Only one programmer may be assigned to each control
unit. The programmer may either be plugged into the
control module or connected via the room installation
set (ancillary equipment).
Observe the installation and service instructions.
AUT
2BF
2FB
1FV
HK
1PH
2PS
2PZ
1SH
1WF
2WF
Control mode
Remote control programmer or TR25 heating circuit 2
Hot water temperature sensor, heating circuit 2
Flow temperature sensor, heating circuit 1
Heating circuit
Pump for heating circuit 1
Cylinder charging pump, heating circuit 2
Circulation pump, heating circuit 2
Actuator, heating circuit 1
Selection function (volt-free), heating circuit 1
Selection function (volt-free), heating circuit 2
6)
N
M
41
N
L
M
L
43
N
44
-
N
M
L
+
2
3
2
3
1
1
1
1
M
0
2PZ
2PS
1SH
1PH
2FB
2WF 7)
2BF 6)
1FV
1WF 7)
6 720 803 859-01.1T
FM441/CMM910
AUT
0
AUT
Internal BUS in the control unit
HK / WW module FM441/CMM910
Input for automatic control
Mains supply
GB, IE, AU
6 720 803 056 (2012/07)
Bosch Thermotechnology, Cotswold Way, Worcester WR4 9SW
1
2
FM441/CMM910 function module
DHW heating, heating circuit 2
1
HK
T
T
1FV
2PS
1PH
M
1SH
2PZ
2FB
2
FM441/CMM910
GB, IE, AU
6 720 803 056 (2012/07)