ASSEMBLY DIAGRAM INOVA E 20MCS W TOP
CO
FV
OR
TA
Fus
IG
L
FA
N
TA
Pma
CR
N
F
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 Timer contact (if any)
CR Circulator
EA Ignition electrode
EC Control electrode
EI
Summer/winter switch
FA Anti-interference filter
Fus Fuse
FV Detachable connector
IG
Main switch
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Sma
San. Risc.
Psan
SF
M2
7
8
9 10 11
M3
12
13
14
M5
M1
1
M2
7
8
9 10 11
M5
2
3
4
M1
1
2
3 4 5 6
5
6
12
13
14
M3
15
16
M4
P1
29
28
27 26
TARA MOD.
E/I
SC
29
28
27 26
M4
SM
15
16
Line
L
N
Neutral
OR Timer (option)
P
LPG/METHANE bridge
P2-P3-P4-P5 Potentiometers
PF
Fume pressure switch
Pma Lack of water pressure switch
PR Reset push-button
PsanHot water priority
RA Anti-interference resistor
SB Lock-out warning light
F
N
SB
24
25
M6
PR
N
F
17
18
19 20 21 22
23
L N R AL RES L L
1 2 3 4
5 6 7
17
18
19 20 21 22
23
P3
24
25
risc.
M6
19 18 17 16
+
N TS TS GV
P5
TIMER
RLA
J4
P2
san.
+
CA
M7
P4
MAX,R
P
M7
SC Connection board
SF
Operation indicator
Sma Lack of water warning light
SMT Supply temperature sensor
TA
Room thermostat
TIMER Boiler timer adjustment
TST Safety thermostat
VG Gas valve
VN Fan
39
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
EA
N
F
VG