Power module NM482
Controller module CM431
(behind the controller module)
MEC22)
Switching states
M
or
Z
AUT
0
0
Switch
position
FM 455
Z
L
(1 PH)
(PZ)
(PL)
K6
K5
K4
Heating circuit 2
M
Switch
position
+
AUT
Control
mode
hotter
Control
mode
colder
Control
mode
LV
K3
K2
K1
Control
mode
Control
mode
colder
Control
mode
hotter
0
0
Control voltage 230V
(2 SH)
(2 PH)
AUT
03/2008
AUT
+
Issue:
4)
5)
(1 SH)
M
M
7747017551
3)
L
Mat. no.:
2)
The total current drawn must not exceed 10 A.
Always adhere to this value and check it after commissioning to prevent equipment damage!
Recommended connecting cable in the cable trunking H 05 V V-F3G 1.0 mm² or H 05 V V- F4G 1.0 mm²
NOTE! Only one MEC2 can be allocated to each control unit.
The MEC2 may be plugged into the controller module or
be connected via the room installation set (accessory) to one of the
ZM.. or FM.. modules.
When connecting several ECOCAN BUS components, close both S1 switches
(terminators on the NM 482) of both outermost ECOCAN BUS subscribers.
A screen is not required for standard applications. (Terminate the screen only at one end)
see also service instructions
Wiring diagram:
1)
R 4121
Heating circuit 1 / DHW
Page: 1 / 2
Slot 2 for FM module
7308
ZM424 central module
Proj. no.:
Note
Implement the installation, fuse protection, mains isolator, emergency stop switches
and protective measures in accordance with local regulations.
Ensure the power is connected to the correct phases.
Never use plugs with earth contacts.
NOTE! Never use the earth yellow/green conductor as control line.
Connection socket for external service devices
1
A
BUS (internal)
ZM424 central module
B
Module FM455 for KSE1
Power module NM482
Controller module CM431
*) = Input auto control
3)
*)
+
*)
M
*)
AUT 0
0
K6
K5
*)
*)
S1
*)
AUT
K4
K3
K2
K1
ECO BUS
3
44 43 41
75 74 73
1 PH
63 61
1 SH
WF
2 PH
63 61
2 SH
44 43 41
Netz
L N
(FB)
2FV 2BF
FA
FK 1FV 1BF
WF
2 1 2 1 2 1 2 1 3 2 1 2 1 2 1
+ -
+ -
2
Netz
L2 N
1
N L1
L
N
Operation
4)
UBA/
EMS
2 1
1a
1b
+ -
I 0
1
Fuse
10A (slow)
L
N
L
N
L N
0,4 - 0,75 mm 2
max 5A
1)
max 5A
1)
max 5A
1)
max 5A
1)
max 5A
1)
= hotter
= colder
63 61
N
L M
44 43 41
N
74 73
N
L M
= hotter
= colder
75 73
N
L M
63 61
N
L M
44 43 41
- +
1 2
1 2
Servomotor
runtime 2 min
(1 SH)
Cylinder primary DHW circulation
pump
pump
(WF)
(WF)
Heating circuit
pump
(2 PH)
AUT
N
Servomotor
runtime 2 min
(2 SH)
Selection function: Heating circuit mixer 1 or DHW
GB
Heating circuit 1
Heating circuit 2
Outside temp.
sensor
(FA)
1 2
ECOCAN BUS
3)
1 2
Flow
Boiler water
temp. sensor temp. sensor
(1 FV)
(FK)
or
DHW temp.
sensor
(FB)
15
25
2
1
3 4
3
1
Remote control Selection function
MEC2
(zero volt)
or BFU
(1 BF) Heating circuit 5)
2)
1-3 man. day mode
20
AUT
15
Flow temp.
sensor
(2 FV)
1-2 man. night mode
1-2 fault mess Pump
Alternatively
DHW 5)
1-2 fault message pump
1-3 input pasteurisation
1-3 heating once-only
25
Remote control
BFU
or MEC2
(2 BF)
2)
Connection in the
wall mounted
gas fired boiler
(UBA 1.5)
L N PE
Mains
20
1 2
Heating circuit
pump
(1 PH)
- +
1 2
Power supply
for
FM module in
slot 2
1 2
230V 50Hz
Connection
EMS boiler
PLEASE NOTE
First remove jumper 3-4.
Incorrect connection inside
the wall mounted gas fired boiler
can lead to equipment damage.
Therefore, always check the connection in
the UBA.
max. permiss.
fuse rating
10A (slow)
Logamatic 4121 boiler & DHW control unit for Buderus boilers
M
System example 2
Heating circuit pump HK1 & HK2
Servomotor HK1 & HK2
DHW heating via UBA/EMS
Connect DHW circulation pump to UBA / MC10
2 x 0,75
THV
2
♦
♦
♦
♦
2 x 0,75 2
HK1
Heating circuit pump HK1 & HK2
Servomotor HK1 & HK2
DHW circulation pump control on site
DHW heating via UBA/EMS
2 x 0,75
Legend:
BF2
BF1
Control via the Logamatic 4121:
2
BF
DA
FA
FB
FK
FV
HK
KR
PH
PS
PZ
RK
RS
SA
SH
SMF
THV
TWH
VK
VS
ÜV
UBA
2 x 0,75 2
HK1
THV
HK2
03/2008
Control unit
Logamatic 4121
FA
FA
Control unit
Logamatic 4121
Issue:
Buderus wall mounted
gas fired boiler
GB 112/GB 142/GB 162
7747017551
3 x 1,5
3 x 0,75
2 x 0,75 2
3 x 1,5
VK
RK
2
4 x 0,75 2
4 x 0,75 2
2)
SA
PZ
2 x 0,75 2
FV2
FK
M
KR
TWH
PH1
PH2
SH1
M
UBA/
EMS
PH2
4 x 1,5 2
VK
SH2
SH1
FK
SA
M
M
DA
RK
SMF
VS
1) No overflow valve required when using
variable speed circulation pumps.
2) Tacho setter for hydraulic balance.
RS
3 x 1,5 2
Buderus
DHW cylinder
Logamax S120
System example 3
System example 4
Control via the Logamatic 4121:
Control via Logamatic 4121 with FM 442 module:
Heating circuit pumps HK1 and HK2
Servomotors HK1 & HK2
DHW heating via UBA/EMS
Connect DHW circulation pump to UBA / MC10
Connect cylinder primary pump to UBA / MC10
BF1
2 x 0,75
BF2
2
THV
2 x 0,75 2
HK1
HK2
♦
♦
♦
♦
♦
Control via module FM 442
Heating circuit pumps HK1, HK2, HK3, HK4
Servomotors HK2, HK3, HK4
DHW heating via 4000
Connect DHW circulation pump to 4000
Connect cylinder primary pump 4000
BF1
2 x 0,75
Control unit
Logamatic 4121
FA
ÜV
1)
2 x 0,75 2
2 x 0,75 2
2 x 0,75 2
2 x 0,75 2
Mains
3 x 1,5 2
KR
3 x 1,5 2
PH1
4 x 1,5
VK
TWH
UBA/
3 x 1,5 2
EMS
Mains
PH2
SH1
M
PZ
SMF
KR
EMS
FB
VK
VS
RS
Buderus
DHW cylinder
(e.g. Logalux ST...)
2 x 0,75 2
PS
KR
3 x 1,5 2
2 x 0,75 2
SH2
RK
Mains
HK1
THV
BF4
2 x 0,75 2
HK2
THV
2 x 0,75 2
HK3
THV
ÜV
1)
ÜV
1)
ÜV
1)
ÜV
1)
KR
PH1
FV2
TWH
PH2
FV3
TWH
PH3
FV4
TWH
HK4
2 x 0,75 2
Mains
M
RK
2)
SA
3 x 1,5 2
2 x 0,75
2
PH4
2
4 x 1,5 2
2)
2 x 0,75 2
Buderus wall mounted gas fired boiler
Logamax plus GB 112/GB 142/GB 162
FV2
3 x 1,5 2
Control unit
Logamatic 4121
with FM 442
FA
ÜV
1)
BF3
BF2
2
THV
Buderus boilers
Logano plus
GB 135/SB 105
EMS
1) No overflow valve required when using
variable speed circulation pumps.
2) Tacho setter for hydraulic balance.
PZ
Buderus
DHW cylinder
(e.g. Logalux ST...)
Logamatic 4121 boiler & DHW control unit for Buderus boilers
- System examples -
2 x 0,75 2
2)
SMF
♦
♦
♦
♦
♦
TWH
PH1
Buderus
Gas fired boiler
GB 132 T/GB 152 T
SH2
FV2
FV1
3 x 1,5 2
Mains
FB
ÜV
1)
ÜV
1)
2
Mains 3 x 1,5
3 x 0,75 2
2
ÜV
1)
2
Mains
2 x 0,75 2
ÜV
1)
2 x 0,75 2
Mains
UBA/
EMS
2 x 0,75 2
2 x 0,75 2
2 x 0,75 2
2 x 0,75 2
Mat. no.:
Proj. no.:
7308
Wiring diagram:
HK2
remote control MEC 2 or BFU
diaphragm expansion vessel
outside temperature sensor
DHW temperature sensor
boiler water temperature sensor
flow temperature sensor
heating circuit
check valve
heating circuit pump
cylinder primary pump
DHW circulation pump
boiler return
cylinder return
line regulating and shut-off valve
servomotor, heating circuit (mixer)
dirt filter
thermostatic radiator valve
temperature limiter, heating circuit
boiler flow
cylinder flow
overflow valve
universal burner control unit
for Buderus wall mounted gas fired boilers
Energy Management System
for Buderus boilers
3 x 1,5 2
SH2
M
SH3
M
SH4
FK
SA
VS
RS
Buderus
DHW cylinder
(e.g. Logalux ST...)
PS
SMF
KR
FB
M
DA
PZ
1) No overflow valve required when using
variable speed circulation pumps.
2) Tacho setter for hydraulic balance.
4 x 1,5 2
KR
1) No overflow valve required when using
variable speed circulation pumps.
2) Tacho setter for hydraulic balance.
Note:
Option HK1 with mixer, if
DHW heating via
UBA / MC10
GB
♦
♦
♦
♦
BF2
BF1
Control via the Logamatic 4121:
Page: 2 / 2
R 4121
System example 1