31
L
N
F
TA
CiR
VG
TL
TST
3
2
1
VD
RLA
Timer
SS
SM
BM
Rmax
FC
FL
X
Risc.
Sanit.
EA
EC
Resist.
1 kohm
JP1
JP2
ASSEMBLY DIAGRAM
LEGEND
BM
Modulating coil
CiR
Heating circulator
EA
Ignition electrode
EC
Control electrode
F
Fuse
FC
Flue control
FL
Safety flow-switch
JP1
Methane/LPG selector
JP2
Post-circulation selector
L
Line 230 V 50 Hz
N
Neutral
RLA
Slow ignition adjustment
Rmax.
Heating max. power adjustment
SM
Delivery sensor
SS
Hot water sensor
TA
Room thermostat (if any)
TL
Limit thermostat (if any)
TST
Safety thermostat
Timer
Boiler timer adjustment
VD
3-way valve
VG
Gas valve
X
Resistor to be cut for low
temperatures
1
Heating potentiometer
2
Selector: Off
Summer
Winter
Reset
Test
3
Hot water potentiometer
Jumper to be cut
if limit thermostat
is required
Panel
connection
CONTROL PANEL
Lock-out warning light
ON/OFF
warning light
Malfunction
warning light