Saunier Duval Xeon 40ff Instructions For Use Installation And Servicing page 31

KEY:
b - BLUE
bk - BLACK
br - BROWN
g/y - GREEN/YELLOW
or - ORANGE
p - PURPLE
r - RED
y - YELLOW
w - WHITE
NC
NO
AIR
PRESSURE
SWITCH
g/y
SEQUENCE
BOARD
FUSES
F1 & F2
(F1A)
3-PLUGS
y
3
2
CONTROL
THERMOSTAT
9 Fault Finding
g/y
r
b
r
bk
ELECTRODE
y
C
CHASSIS EARTH
w
g/y
b
or
b
p
w
w
y
y
GRAVITY DOMESTIC
HOT WATER AND
FAN
PUMPED CENTRAL
HEATING
MULTI-FUNCTIONAL
CONTROL
g/y
y
K2
K1
p
P
PN
9
r
SL
L
b
br
N
g/y
OVERHEAT
CUTOFF
31
br
CHASSIS
EARTH
Yellow link fitted to bridge out the
overheat cutoff
Pump must be wired into central
heating system remote controls
and not to control box
Ensure RED LINK connected
between 9 and SL.
L
230V~50Hz
N
MAINS
SUPPLY
E
FUSED
AT 3-AMP
Diagram 9.6
221657C