Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
3 Product description
83311002 1/2018-03 La
11-132
3.3.3 Electrical components
Image: WTC-OB 18-B VERS. W-PEA
4
5
6
7
8
9
q
0
w
e
r
t
1
z
u
i
2
3
1
Flow sensor
2
Boiler electronics WCM-OB-CPU with electrical connection and appliance
fuse
3
Combustion air sensor
4
Combustion chamber pressure sensor
5
Speed controlled fan
6
Flue gas sensor
7
Actuator three way valve
8
Level switch
9
Speed controlled circulation pump
0
System pressure sensor/return flow sensor
q
Ignition unit (with fixing plate for setting gauge)
w
Oil preheating
e
Flame sensor
r
Stage 2 oil solenoid valve
t
Stage 1 oil solenoid valve
z
Pump motor
u
Burner connection console
i
Boiler control panel WCM-CUI