11
L
N
J1
F
J14
L1
CiR
J3
J4
EA
J15
VN
TL
J6
J10
J13
J9
J8
BM
JP4
JP3
RLA
R max.
SR
PS
EA
EC
JP1
PA
3
2
1
TA
VG
J12
TST
CONTROL PANEL
JUMPER TO BE CUT IF LIMIT
THERMOSTAT IS REQUIRED
MODULA
TOR
PANEL
CONNECTION
Lock-out warning light
JP5 (LOW TEMP.)
ON/OFF warning light
Malfunction warning light
ASSEMBLY DIAGRAM XILO T 20 MS W TOP
LEGEND
BM
Modulating coil
CiR
Heating circulator
EA
Ignition electrode
EC
Control electrode
F
Fuse
JP1
Methane/LPG selector
JP3
Post-circulation selector
JP4
Ignition limiting selector
JP5
Jumper to be cut for low
temperature
L
Line 230 V 50 Hz
N
Neutral
PA
Air pressure switch
PS
No-water pressure switch
RLA
Slow ignition power adjustment
Rmax.
Heating max. power adjustment
SR
Heating sensor
TA
Room thermostat (if any)
TL
Limit thermostat (if any)
TST
Safety thermostat
VG
Gas valve
VN
Fan
1
Heating potentiometer
2
Selector:
Off
Winter
Reset
Test
3
Fixed knob