3008
3
GB
ELECTRICAL WIRING
D4637
D4638
BURNERS
BURNERS
CONTROL
BOX
KEY TO LAY-OUT
A
– Two-way connector
B
– Four-way connector
D
– Earth wire
G
– Connectors for servomo-
tor
F
– Adjustable clamp
B5
– Working signal 2
nd
stage
C
– Capacitor
CN1
– Probe connector
E
– Electrode
h2
– 2nd stage hour counter
MV
– Motor
PA
– Min. air pressure switch
PG
– Min. gas pressure switch
RS
– Remote reset
SM
– Servomotor
SO
– Probe ionization
TR
– Adjusting thermostat
TB
– Burner earth
V2
– Protection
V10
– Safety valve
V11
– 1
st
stage valve
V12
– 2
nd
stage valve
X..
– Socket
XP..
– Plug
1
– Black
2
– Blue
3
– Brown
MG56
9
TWO STAGE
ONE STAGE
CONTROL BOX
MG5
6
9
