Technical information

12
2.11. ELECTRICAL DIAGRAM
The P.C.B. is fitted with 2 fuses, on the live and the neutral.
The fuse holder contains:
- 5 x 20mm “3.15A Slow” glass fuses
7
89
10 11 121314 15 16
LN
SE SP CR TA
VG
CI
OP
P
r
o
g
.
h
m
Day
7
89
10 11 121314 15 16
FS
FI
MV
NTC1
NTC2 NTC3
A
B
C
D
E
F
G
H
I
I
I
I
J
K
K
L
M
N
O
R
S
S
T
P
Q
Q
O
LEGEND:
A: JUMPER
When needed, the P.C.B. allows the different options to
be selected by means of a wire link.
The boiler has the following basic arrangement:
1 OPEN
2 CLOSED (jumper)
3 OPEN
4 OPEN
5 OPEN
6 CLOSED
7 CLOSED(MFFI); OPEN (SYSTEM)
8 OPEN (MFFI); OPEN (SYSTEM)