PRINCIPLE DIAGRAM INOVA E 20MCS W TOP
Fuse
IG
1
L
FA1
8
3
c
PS
nc
na
4
9
Sh2O
SF
OR
FA3
7
10
N
2
To install the room thermostat TA remove the bridge and connect up using the supplied fairlead .
LEGEND
BM Modulating coil
CA Ignition control unit
CO Programming timer contact
CR Relay contacts
EC Control electrode
Summer/winter switch
EI
ES
Spark electrode
Main switch
IG
Line
L
MP Hot water priority micro
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5
6
E
I
EI
C
TA
CO
FA2
16
SM
ptc
27
29
P
REGOLATORE
TR1
ELETTRONICO
15
17
ELECTRONIC
REGULATOR
pressure switch
Neutral
N
OR Programming timer
(on request)
System pump
P
PF
Fume pressure switch
PR Reset push-button
PS
Safety push-button
P.RI Heating potentiometer
P.SA Hot water potentiometer
SB
PR
14
12
RISC
SAN
L N R AL RES L L
MP
1 2 3 4
5 6 7
13
CA
na
nc
19 18 17 16
CR
N TS TS GV
c
J4
20
21
23
22
24
26
BM
28
25
18
19
FA4
SB Lock-out warning light
Operation indicator
SF
O Lack of water warning light
SH
2
SM System supply sensor
Room thermostat
TA
TR1 Transformer
TST Total safety thermostat
VG Gas valve
VN Fan
37
VN
PF
TST
J1
J2
J3
N TS TS GV
PNC PNO PC FAN N
8
9 10 11 12
13 14 15
MT1
MT2
ION
J5
J6
EC
ES
VG