29
TYPICAL SYSTEM SCHEMATIC
MO1
Terminal strip
PC/PI
Thermal unit pump/System pump (Par. 2033)
AL
Remote activation of alarm (Par. 2031)
INAIL
INAIL safety measures (Par. 2029)
PWM-GND
PWM pump control output (Par. 2059-2060)
PO
Timer (Par. 2027-2045) (*)
0-10V
0-10V input (Par. 1063-2001-2025-2026)
TA
Room thermostat (Par. 2001)
OT
OpenTherm (Par. 2001)
SE
External sensor (Par. 2001)
SB
Hot water tank sensor/thermostat (Par. 2035)
SS/CCS
System sensor / cascade control sensor (Par. 2088)
FL
Flow meter/flow switch (Par. 2027)
ZONES
Modbus zone
BMS
Modbus
IG
Main switch
C
Ground conductor delivery
F
Mains power fuse 6.3 A-T
VD
3-way cock
VIC
Fuel shut-off valve (Par. 2030)
MO2
Terminal strip
L
Light guide
SCH1
Main control board
B
Burner
BE09
Relay interface card
SR
Return probe
SM
Flow probe
SF
Exhaust flue probe
TF
Flue gas thermostat
TS
Safety thermostat
TP
Pressure transducer
SCH2
Display and control card
(*)
Operation only with storage tank sensor (not applicable
with storage tank thermostat).
br
brown
b
blue
r
red
w
white
bl
black
y/g
yellow/green
y
yellow
gr
grey
g
green
o
orange
p
pink
pl
violet
3.4.1
Burner wiring diagram
G
iall
o/
Verd
e
APPARECCHIATURA
HE
AT
TB
K
N L
M
E
B
R
C
MV
M
XP6
Ph
X6
3
2
1
3
2
1
N
4
5
RESET
F
V
DE
M
AN
D
Nero
Bianco
Blu
⏚
⏚
⏚
C
Condenser
E
Electrodes
F
Flame sensor
K
Start enable thermostat after pre-heating
MV
Fan motor
R
Heating element
TB
Ground - Burner
V
Fuel oil valve
X6
6-pin plug
XP6
6-pin socket
