66
3062547_201802
37 Wiring diagram
SF
1
2
gn/ge
br
bl
3
2
1
L
N
NL
NN
N
L
L
NL
NL
L
N
N
+
-
~+
+
-
-
+-
~
~~
~~
+
-
++
-
+
+
+
-
-
-
~
~
+
+
-
eBUS
eBUS
gn
ge
rt
GND
GND
R680
12V
+
+
-
-
GND
0,5..4,5V
GND
5V
>
X1
X2
X3
X6
X4
X7
X5
X8
br
ws
gn
br
gn
rt
ge
ws
br
gn
br
br
gn
ge
ws
gn
sw
bl
br
rt
rt
bl
br
sw
br
br
bl
bl
br
br
vio
br
sw
or
gn
bl
rt
ge
ws
ge
gn
br
A2
A
1
AF
E1
eBUS
+
-
1
2
a
b
L1
oo
oooo
oo
oo
12
12
12
12
rt
gn
sw
bl
or
vio
br
ge
rt
L1L1
rt
sw
>
ws
ge
gn
br
>
ge
gn
ws
br
ge
5
4
3
3
2
2
1
1
br
rt
gn
3
4
5
2
1
P
grau
Net
z
KKP
LP
N
N
N
L1
L1
MT
5A
F1
br
bl
gn/ge
sw
ws
L1
N
L1
N
N
L1
N
N
X
X
X
1
2
3
4
5
6
bl
br
gn/ge
123
PE
PE
PE
PE
N
N
N
L
L
L
br
bl
gn/ge
PWM
N-Klemme
Junction
box:
Mains
230
V
AC
50
Hz
LP
External
primary
pump
230
V
AC
E1
Programmable
input
eBUS
BUS
connection
for
external
Control
accessories
KKP
Boiler
circuit
pump
AF
Outside
sensor
SF
Cylinder
sensor
Mains
Accessories
Charging pump
Output A1
Heating circuit pump
Stratification pump
Oil pump
N terminal
Ignition
Oil preheating
L valves
Valve 1
Valve 2
Input E1
Outside sensor
PWM, stratification pump
Stratification sensor
Flow sensor
Speed
Temp. limiter
, flow
Temp. limiter
, flue gas
External boiler monitoring
Cylinder sensor
Fan
X10
(Protective conductor
terminal)
X9
(boiler
codin
g
card)
eBUS plug
PWM
stratification
pump
Fault message Condensate
pump
W1
(flow
sensor)
E1 (ignition transformer)
Y2 (valve 2)
Y1 (valve 1)
Output
A1
M3 (oil pump)
Burner
M4 (ventilator)
S4 (water
pressure
switch)
S2
(TW flue
gas)
S1 (TW
flow)
Stratification
sensor
Jumper
M1 (stratification pump)
B3 (IRD)
eBUS
Summary of Contents for COB
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