41
ASSEMBLY DIAGRAM XILO D 24 MC W TOP
- card code 4.56040.0
L
N
J1
F
J14
L1
CiR
J3
J15
TL
J6
J13
J9
J8
BM
JP4
JP3
RLA
Rmax.
SR
SS
PS
JP5
JP1
FC
TA
JP6 JP7
VG
J12
TST
VG1
EA
EC
Resist.
1 kohm
PANEL
CONNECTION
(LOW TEMPERATURE)
MODULA
TOR
JUMPER TO BE CUT IF LIMIT
THERMOSTAT
IS REQUIRED
3
2
1
Lock-out warning light
ON/OFF warning light
Malfunction warning light
J10
MP
+ S
LEGEND
BM
Modulating coil
CiR
Heating circulator
EA
Ignition electrode
EC
Control electrode
F
Fuse 2(A)
FC
Flue control
JP1
Methane/LPG selector
JP3
Post-circulation selector
JP4
Ignition limiting selector
JP5
Jumper to be cut for low temperature
JP6
Mono-thermal/bi-thermal switch
L
Phase 230 V 50 Hz
MP
Hot water priority micro pressure
switch
N
Neutral
PS
No-water pressure switch
RLA
Slow ignition power adjustment
Rmax.
Heating max. power adjustment
SR
Heating sensor
SS
Hot water sensor
TA
Room thermostat (if any)
TL
Limit thermostat (if any)
TST
Safety thermostat
VG
Gas valve SIT 837
VG1
Gas valve Honeywell
VK 4105M
1
Heating potentiometer
2
Selector: Off
Summer
Winter
Reset
Test
3
Hot water potentiometer
Warning: One of the two gas valves only, VG or VG1, is fitted on the boiler.