Saunier Duval Xeon 50ff Instructions For Use Installation And Servicing page 30

bk BLACK
br BROWN
bl BLUE
p PURPLE
**
Red Link must be fitted between
SL and 9.
L
P
p
SPARK
ELECTRODE
F1 F2
O/H CUTOFF
FUSE
TYPE F1 &F2
(F1A)
y
r
bk
AIR
PRESSURE
SWITCH
y
br
PILOT
SOLENOID
Yellow Link fitted to bridge out
*
the overheat cutoff
PUMP WIRED INTO CENTRAL HEATING
SYSTEM REMOTE CONTROLS
AIR PRESSURE SWITCH CONNECTIONS
MAIN TERMINAL STRIP CONNECTIONS
CONTROL THERMOSTAT CONNECTIONS
PRINTED CIRCUIT BOARD CONNECTIONS
GRAVITY DOMESTIC HOT WATER AND
FULLY PUMPED CENTRAL HEATING
221658B
9 Fault Finding
KEY
or ORANGE
w WHITE
r RED
y YELLOW
**
RED LINK
SL 9
or
br
bl
N
w
K2
w
*
Y ELLOW
LINK
K1
y
bl
y
2 3
CONTROL STAT
bl
FAN N
r
bl
(N/O) (C)
(N/C)
bl
N
bl
bk bl
N
MAIN
SOLENOID
Diagram 9.4
L
or
SPARK
ELECTRODE
N
F1
FUSE
TYPE F1 & F2
(F1A)
N
N
N
N
*
Remove red link between 9 and SL when
fitting a time control etc (if no switch is fitted,
link will make the circulation pump run constantly)
FULLY PUMPED OPEN VENTED
OR SEALED WATER SYSTEM
30
KEY
bk BLACK or ORANGE
br BROWN w WHITE
b BLUE r RED
p PURLPLE y YELLOW
br br
L
br
P PUMP
p
b
w
F2
w
O/H CUTOFF
y
y
2
CONTROL STAT
r
FAN
r
bk
AIR
(N/O)
PRESSURE
SWITCH
(N/C)
y
br
PILOT
SOLENOID
bk
MAIN
SOLENOID
AIR PRESSURE SWITCH CONNECTIONS
MAIN TERMINAL STRIP CONNECTIONS
CONTROL THERMOSTAT CONNECTIONS
PRINTED CIRCUIT BOARD CONNECTIONS
or
9
*
RED
LINK
SL
or
b
PN
br
b
or
N N
K2
b
K1
y
3
b
N N
b
(C)
b
N N
b
b
N N
N
Diagram 9.5