19
STV50 ed 09/08
VICTRIX 50 Rev. 002
Electrical circuit.
Legend:
B1 - Flow probe
B2 - Domestic hot water probe (option)
B4 - External temperature probe (option)
B5 - Return probe
E1 - Ignition electrode
E2 - Detection electrode
E4 - Safety thermostat
E6 - Flue thermostat
M1 - Pump
M20 - Fan
M30 - Three-way valve (option)
S1 - Main switch
S5 - System pressure micro switch
S16 - Summer switch (not provided to Immergas)
S20 - Room thermostat (option)
T10 - Low voltage transformer
X40 - Room thermostat jumper
Y1 - Gas valve (24 V DC)
(from the serial number 3918687)
The VICTRIX 50 electrical circuit is connected to a microproc-
essor controlled p.c.b. that controls generator functions.
230 V AC circuit.
Safety devices and controls.
Some of the device on the circuit work at mains voltage (230
V AC) while others work at a low voltage.
This interrupts power to the circuit when power input is over 2 A.
It is mounted on the integrated board.
Line fuse (board)
(F1)
2 AF 250 V fuse
This interrupts power to the circuit when power input is over 2 A.
It is mounted on the boiler terminal block.
Line fuse (terminal block)
(F2)
2 AF 250 V fuse
Bl
ac
k
Bl
ac
k
Bl
ac
k
Bl
ac
k
Bl
ac
k
Bl
ac
k
Bl
ac
k
Re
d
Re
d
Re
d
Re
d
Re
d
Red
Bl
ac
k
Bl
ac
k
Bl
ue
Bl
ue
Blue
Bl
ue
Brown
Br
ow
n
Br
ow
n
Br
ow
n
Br
ow
n
Y/G
Y/G
W
hi
te
W
hi
te
W
hi
te
W
hi
te b
lue
W
hi
te b
ro
w
n
W
hi
te b
ro
w
n
W
hi
te b
ro
w
n
W
hi
te b
lue
White
White
Wh.
G
re
y
G
re
y
G
re
y
G
re
y
G
re
y
Pur
ple
Purple
Purple
Pur
ple
Ora
ng
e
Ora
ng
e
Black
D
.H.W
.
C.H.
DISPLAY BOARD
A
na
log
ic in
pu
t
0-10 V
External
circulating
pump Max. 1 A
F3
F1
Technical Documentation
Technical Documentation