Figure 9
FUSE RATINGS:
F1: 2 A
F2: 2 A
Page 14
5 4 3 2 1
br
BROWN
b
BLUE
g/y
GREEN/YELLOW
gn
GREEN
g
GREY
bk
BLACK
m
MAUVE
w
WHITE
r
RED
KEY
IGNITION
ELECTRODES
FLAME
(IONISATION)
ELECTRODE
OVERHEAT
THERMOSTAT
FUSES (2A)
AIR PRESSURE
SWITCH
GAS CONTROL
VALVE
DOMESTIC
HOT WATER
SENSOR
CENTRAL HEATING
SENSOR
THREE WAY
VALVE
PUMP
FAN
PRINTED
CIRCUIT
BOARD
L E N
230V~50Hz PERMANENT
MAINS SUPPLY
FUSED AT 3A
24V ROOM
THERMOSTAT
CONNECTION
(low voltage)
24V TIME
CLOCK
(low voltage)
230V ROOM
THERMOSTAT
CONNECTION
(high voltage)
USER
INTERFACE
WATER
PRESSURE
SENSOR
WATER
FLOW
SENSOR
r
r
r w g
r
r
F1
F2
CHASSIS
EARTH
br
br
br
br
b
b
b
b
g/y
g/y
g/y
g/y
g/y
g/y
g/y
g g
bk
m
w
w
w
w
w
g
w
w
w
w
w
w
w
w
w
w w
r
r
r
r
r
r
r
r
r
r
r
r r
LIMIT
SAFETY
THERMOSTAT
HALL
EFFECT SENSOR
14