34
Instructions for the installer
3.24 - WIRING DIAGRAM FOR CONNECTIONS AND MANAGING
On the back side of the E8 regulator there are two terminal
blocks, of which one is for the mains (230 V) connections and
the other one is for the low tension connections.
The main controls, necessary for the C.H. system manage-
ment and for the boiler control, as well some components
which are part of the boiler house, must be connected to the
terminal blocks.
Power terminal assignments
Power
terminal
block
Sensor
terminal
block
1
2
3
4
5
6
7
8
9
10
II
A1 A2 A3 A4 A5
A6
N L1 L1’
M
T1 T2
1
2
A7
T3 T4
VI
1
2
3
4
5
A8 A9
A10 A11
IV
4
M
2
1
3
n
1
2
3
4
IX
L H
BUS
50 Hz 230 V
1
2
3
III
IMP
0-10 V
F17
F15
3
1
FBR
1
2
VIII
PT1000
F14 F13
1
2
V
SPF
F12 F11
VF
AF
KF / SPF
VF
F9 F8
F6
F5
F3 F2 F1
FBR
eBUS
FA
0-10 V
1
2
I
VII
6
7
8
9 10
1
2
3
4
5
N L1 L1 1 2
1
Power supply
PI
N
K
GR
E
Y
From BCM
BL
U
E
BR
OW
N
BL
AC
K
Terminal II
II
A1
A2
A3
A4
A
5
A6
NL
1
L
1
’
M
T1
T2
67
89
1
0
1234
5
NL
1
L1
12
1
II
N:
L1:
L2:
:
:
:
:
:
Neutral conductor, mains
Power supply, unit
Power supply to relay
heating circuit pump HK 1
heating circuit pump HK 2
Storage tank charging pump
Mixer open, heating circuit 2
Mixer closed, heating circuit 2
12
A7
T3
T4
V
I
Terminal VI
VI
123
45
A8
A
9
A1
0
A
1
1
IV
4
M
2
1
3
n
Terminal IV
IV
:
:
Mixer open, heating circuit 1
Mixer closed, heating circuit 1
Multifunction relay
Multifunction relay
Recycle pump /
2
1
4
3