Electrical installation
Installation and maintenance instructions ecoTEC pro 0020129672_03
29
8
8.6
Connection wiring diagram
Circulat ion pump remot e cont rol
1
DCF connect ion
Eart h
Eart h
Ext ernal sensor
Flow sensor (opt ional)
6
Ignit ion
t rans-
former
Bus connect ion
(Cont roller/ room t h. digit al)
M
X2
8
17
7
18
14
13
4
12
5
7
7
16
4
3
17
24 V
230 V~
X51
5
8
15
13
12
2
X20
X4 1
X10 6
2
3
11
6
1
Int ernal pump *
Ignit ion
elect rode
Mains connect ion
Appliance eart h
X18
X1
* ... variant -dependent
230 V AC room t hermost at *
No funct ion *
+
2
4
V
PW
M
Ea
rt
h
Ha
ll
s
ig
n
a
l
Divert er valve
1
3
4
red
Flow sensor
blue
Ret urn sensor
Display
Connect ion
Safet y fuse
Bu
rn
e
r
of
f
RT
24
Bu
s
Wat er pressure
sensor
Cont act t hermost at / burner off
1
2
3
4
5
6
1
2
3
Impeller sensor
orange
J
Warm st art sensor
J
J
Fan
1 2
4 5
+
-
FB
AF
RF
DCF
0
0
L
N
L
N
RT
24 V DC room t hermost at
blue
pink
Edge
connect or
green
t urquoise
Gas valve
+
8.3 Wiring diagram for the ecoTEC pro electronics box