29 221564F
6576
Schematic Wiring Diagram
KEY
Red r
Black b
Blue bl
Brown br
Green gr
Yellow y
Green/Yellow g/y
White wh
Orange or
Grey gy
g/y
g/y
g/y
br
bl
bl
br
Ribbon cable
X8
X7
FLOW N.T.C.
THERMISTOR
RETURN N.T.C.
THERMISTOR
HOT WATER N.T.C.
THERMISTOR
OUTSIDE
SENSOR
P.C INTERFACE
CONTROL PANEL
AUTOMATIC CONTROL MODULE
FLAME IGNITION AND
ONISATION ELECTRODE
THREE WAY
VALVE
RESISTOR
220Ω / 7W
230V/50Hz
MAINS PLUG
CHASSIS
EARTH POINT
LOW VOLTAGE PLUG
Room thermostat
Clock/timer
Frost thermostat
WATER PRESSURE
SWITCH
GAS CONTROL
VALVE ES80
PUMP
INTERNAL
FUSES
X1-1
X1-2
X1-3
X1-4
X1-5
F1=2AF
X2-1
F3=3AT F2=2AF
X2-2 X2-3 X2-4 X2-5 X2-6 X3-1
b b gr r b wh bl r b or wh r gr r/wh gy b y br
X3-2 X3-3 X3-4 X3-5 X3-6 X2-7 X2-8 X2-9 X2-10 X2-11 X2-12 X2-13
b
b
1 gr
3 gr
D.C. FAN
AIR
PRESSURE
SWITCH
bl r/wh
r/wh
br
y
bl
r
GAS
CONTROL
VALVE
ES100
13 Fault Finding
Diagram 13.1