PRINCIPLE DIAGRAM INOVA L24 MCS W TOP
Fuse
IG
1
L
5
18
OR
VDR
4
3
17
N
2
LEGEND
BM Modulating coil
CA Ignition control unit
CO Heating programming timer
contact (if any)
CO1 Hot water programming
timer contact (if any)
EC Control electrode
Summer/winter switch
EI
Spark electrode
ES
IG
Main switch
L
Line
MP Hot water priority micro
pressure switch
MAX.R. Max. heating adjustment
R4
RP
8
RT
RS
14
15
13
C2
C1
P
R3
R2
TR1
16
7
Neutral
N
OR Programming timer (on
request)
P
System circulating pump
PF
Fumes pressure switch
PR Reset button
O Lack of water pressure
Ph
2
switch
P.RI Heating potentiometer
P.SA Hot water potentiometer
RLA RLA power adjustment
RT
Relay contact
RS Relay contact
RP Relay contact
SB
PR
L N R AL RES L L
1 2 3 4 5 6 7
CA
19 18 17 16
6
N TS TS GV
ION
J4
EC
PTC
52
SS
51
50
SR
49
SW1
A B C D
VN
TST
PF
J1
J2
PNC PNO PC FAN N
N TS TS GV
8
9
10 11 12
13 14 15
MT1
MT2
J5
J6
ES
12
11
10
9
REGOLATORE ELETTRONICO
ELECTRONIC REGULATOR
48
47 46
45
44
43
34
33 32
BM
TL
Ph
O
2
SR Heating sensor
SS
Hot water/cylinder sensor
SF
Operation indicator
SB Lock-out warning light
SW1Function selector
TA
Room thermostat (if any)
TIMER Boiler timer adjustment
TR1 Transformer
TST Total safety thermostat
TL
Limit thermostat (if any)
TF
Fume thermostat
VG Gas valve
VN Fan
VDR Variator
37
VG
J3
LED thermometer
Termometro a LED
30°
40°
50°
60°
70°
80°
ON
RP
RT
RS
31
30
29
28
27
26
25
CO1
I
SAN.
RISC.
E
MPS
EI
TA
CO