
GENERAL
14
WIRING DIAGRAM
12
34
5
12
34
12
34
5
black
blue
orange
yellow/green
blue
brown
white
white
yellow/green
brown
CH
N
DHW
brown
blue
blue
brown
pink
CN5
CN2
X4
X9
X2
JP4
CN3
CN1
P1
P3
P2
OPE
OPE
FA
2
CONTRO
L CARD
FA
1
SC
ER
EA
TA
C
TLS
TLA
TBT APC
SM
PA
CI
M5
M3
F1
F2
M3a
M4
TA
N
N
L
L
F
VD
VG
brown
brown
black
blue brown
black
blue
blue
VHv
12
34
1
4 3 2 1
8 7 6 5 4 3 2 1
9 8 7 6 5 4 3 2 1
23
12
34
5
6
X16
Power supply
230
VA
C
red
pink
red
black
white
white
orange
orange
black
bianc
o
VLv
blue
blue
blue
black
black
grey
red
red
SR
CR
SE
SF
brown
brown
AD
7 6 5 4 3 2 1
SB
M4a
PO
APC
Condensate pump alar
m
CR
Remote contr
ol
CN1-CN5
Mains voltage connections
EA
Ignition electr
ode
ER
Flame detection electr
ode
F
Fuse 3.15A F (fast)
F1-F2
Fuse 3.15A T (timed)
JP4
Boiler configuration selection jumper (in position 3)
M3
÷
M5
Connection ter
minals
OPE
Gas valve operator
Cl
Central heating/storage cylinder pump
PA
W
ater pr
essur
e switch
P1
DHW temperatur
e setting potentiometer
P2
CH temperatur
e setting potentiometer
P3
Function selector
R9
Maximum fan speed trimmer
R10
Minimum fan speed trimmer
R14
Bur
ner ignition slow fan trimmer
R19
Maximum CH fan speed trimmer
R35
Temperatur
e contr
ol curve selection
trimmer
SC
Condensate sensor
SE
Outdoor temperatur
e sensor
SM
Primar
y cir
cuit flow temperatur
e
sensor
SR
Primar
y cir
cuit r
etur
n
temperatur
e sensor
SW1
Chimney sweep
TAC
Ignition transfor
mer
TR2
Main transfor
mer
TBT
Low temperatur
e ther
mostat
TLA
W
ater over
temperatur
e
thr
eshold ther
mostat
TLS
Heat exchanger thr
eshold
ther
mostat
VHv
Fan power supply 230V
VLv
Fan contr
ol signal
VG
Gas valve
X2÷X16
Low voltage connections
VD
3-way valve servomotor
SB
Storage cylinder temperatur
e sensor
SF
Flue gas temperatur
e
sensor
PO
DHW timer
-pr
ogrammer
(accessor
y)
Содержание 20044965
Страница 51: ...TECHNICAL ASSISTANCE SERVICE 51 ...