ASSEMBLY DIAGRAM XILO 20 MCS W TOP
L
J1
N
J14
T A
BM
SR
SS
LEGEND
BM
Modulating coil
Heating circulator
CiR
EA
Ignition electrode
EC
Control electrode
Fuse
F
FL
Flow meter
JP1
Methane/LPG selector
Hot water
JP2
temperature selector
JP3
Post-circulation selector
Ignition limiting selector
JP4
CiR
J3
F
L1
J8
JP3
JP1
JP4
RLA
Lock-out warning light
CONTROL PANEL
JP5
Jumper to be cut for low temperature
Line 230 V 50 Hz
L
N
Neutral
PA
Air pressure switch
No-water pressure switch
PS
RLA
Slow ignition power
adjustment
Rmax. Heating max. power adjustment
SR
Heating sensor
SS
Hot water sensor
Room thermostat (if any)
TA
TST
VN
VG
J4
J12
PS
PA
J9
TL
J6
JUMPER TO BE CUT IF LIMIT
THERMOSTAT IS REQUIRED
JP2
JP5 (LOW TEMP.)
R max.
3
2
1
Malfunction warning light
ON/OFF warning light
J15
FL
-
+
J10
J13
PANEL
P
CONNECTION
Limit thermostat (if any)
TL
TST
Safety thermostat
VG
Gas valve
Fan
VN
1
Heating potentiometer
2
Selector: Off
Summer
Winter
Reset
Test
Hot water potentiometer
3
34
EA
EA
EC