39
ASSEMBLY DIAGRAM INOVA E 20MCS W TOP
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
L
Line
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
Psan
Hot water priority
RA
Anti-interference resistor
SB
Lock-out warning light
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
7
9 10 11
M2
1
3 4 5 6
M1
8
2
FA
3
17
19 20 21 22
M5
18
23
FA
4
25
24
M6
13
12
M3
16
15
M4
14
FA
1
FA
2
P3
+
risc.
P5
RLA
P4
MAX,R
P2
+
san.
P1
TARA MOD.
28
29
M7
27 26
L
N
TA
FA
5
3
1
M1
2
4
6
IG
Pma
E/I
FA
2
7
9 10 11
M2
8
SF
Sma
13
12
M3
14
San. Risc.
Psan
17
19 20 21 22
M5
18
23
16
M4
15
CR
N
F
N
F
25
24
M6
N
F
SB
PR
TST
VN
PF
EC
VG
28
29
M7
27 26
SM
Fus
EA
CA
SC
FA
1
FA
3
OR
TA
FA
2
FV
CO
J1
J2
J3
L N R AL RES L L
1 2 3 4 5 6 7
PNC PNO PC FAN N
8
9 10 11 12
N TS TS GV
13 14 15
N TS TS GV
19 18 17 16
J4
J5
MT2
MT1
J6
ION
N
F
TIMER
P
