WIRING DIAGRAM INOVA L24 MCS W TOP
To install the timer remove the bridge between terminals 25 and 26.
L
FILTER
N
C
TA
IG
TL
MODULATING BOARD
COD. 8.50896.0
To install the room thermostats TA and TL remove the
bridges and connect up using the supplied fairlead.
LEGEND
BM Modulating coil
CA Ignition control unit
Condenser
C
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
SYSTEM
PUMP
M6
19
20
21
22
23
24
P1
D
HEATING
C
SW1
B
A
P4 HOT
WATER
HOT
WATER
PRIORITY
SUMMER
/WINTER
SWITCH
WATER
PRESSURE
SWITCH
HEATING
SENSOR
HOT WATER
SENSOR
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
SR Heating sensor
VN
SB
PR
PF
J1
L N R AL RES L L
PNC PNO PC FAN N
1 2 3 4 5 6 7
8
9
10 11 12
CA
19 18 17 16
N TS TS GV
ION
J4
J5
EC
VG
BM
LD1
ON
LD30
LD40
LD50
LED + FLAT BOARD
LD60
LD70
NOTE: Check that the
LD80
microswitches on selector
SW1 are as illustrated in the
diagram.
D = Floor heating function
switch
SS
Hot water/cylinder sensor
SF
Operation indicator
SB Lock-out warning light
SW1Function selector
Room thermostat (if any)
TA
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
39
TST
J2
J3
N TS TS GV
13 14 15
MT1
MT2
J6
ES
D
C
SW1
B
A