Schematic Wiring Diagram - Saunier Duval THEMA F 23 E Installation And Servicing Instructions

SCHEMATIC WIRING DIAGRAM

THEMA F 23 E PCB
EV1
6.13
6.14
TA
6.15
6.11
Ra 6.12
6.9
K5
6.8
6.6
SW3
6.4
6.2
CTN
6.3
P
2.2
2.1
N
L
Diagram 38
THEMA F SB 18 E and THEMA F SB 23 E PCB
EV1
6.14
TA
6.15
6.11
6.12
Ra
6.9
K5
TH
6.8
6.6
6.4
6.2
CTN
6.3
V3V
3.3
3.2
3.1
P
2.2
2.1
N
L
Diagram 39
9.1 9.2 8.4 8.3
TRA
IG
9.1 9.2 8.4 8.3
IG
TRA
IG - ON/OFF switch
- Pump
P
SW3 - Microswitch
K4 - Hight limit thermostat
- Loss of water switch
K5
EV1 - Gas valve modulating coil
TA - Room thermostat (if fitted)
- Boiler thermistor
CTN
EV - Gas valve
AL - Ignition unit
- Ignition electrode
FA
FL - Flame sense electrode
TRA - Transformer
- Air pressure switch
Pr
EX - Fan
14.9
14.8
14.6
14.5
8.2 8.1
14.4
14.3
14.7
14.2
14.1
13.4
13.1
12.2
13.3
12.1
13.2
- ON/OFF switch
IG
- Pump
P
K4 - Hight limit thermostat
- Loss of water switch
K5
- Gas valve modulating coil
EV1
TA - Room thermostat (if fitted)
- Boiler thermistor
CTN
EV - Gas valve
AL - Ignition unit
- Ignition electrode
FA
FL - Flame sense electrode
TRA - Transformer
- Air pressure switch
Pr
EX - Fan
TH - Cylinder thermostat
14.9
14.8
14.6
14.5
8.2 8.1
14.4
14.3
14.7
14.2
14.1
13.4
13.1
12.2
13.3
12.1
13.2
FL
Pr
K4
EV
Al
FA
Ex
FL
Pr
K4
EV
Al
FA
Ex
25