INST
ALLA
TION
MANUAL
12
PI
FU
L1
N
PE
TA
TA
TB-C
TB-1
TB-2
1 2 3 4 5 6 7 8 9 10 11 12
CO
1
RS
TR
CO2
PB-N
PB-L1
PB-PE
MO
1
MO
2
LR
LV
1
2
3
4
5
6
7
8
9
10
11
12
ER
EA
VG
AP
0
1
IG
TS
PI-L1
PI-PE
PI-N
PE
N
F
VG
TF
G
Main switch
FU
Fuse
LV
Gr
een “power on” LED indicator
LR
Red “bur
ner lockout” LED war
ning light
RS
Bur
ner r
eset button
TR
Central heating temperatur
e contr
ol
TS
Safety ther
mostat (manual r
eset)
TF
Flue gas ther
mostat (manual r
eset)
PI
CH pump
AP
Ignition and flame detection unit
VG
Gas supply solenoid valve
EA
Ignition electr
ode
ER
Flame detection sensor
MO1
Main boar
d ter
minal strip
MO2
Auxiliar
y ter
minal strip
2.11
Multi line wiring diagram
Fig. 2.11
