Wolf COB-2 Operation Instructions Manual page 81

Appendix
X6:
HCM-2
Fig. 12.2 Oil burner control unit OBC / CM368 wiring diagram
Appliance chassis earthing
q
Oil pump
w
Oil valve 1
e
Oil valve 2
r
Oil burner
t
Ignition electrodes
y
Ignition unit with flame detection
u
3066501_201910
1X:1
230V L
230V N
+23V
CC TX
CC RX
GND
Res.
9
OBC / CM368
Differential pressure sensor 0.5-4.5V
Differential pressure sensor GND
Differential pressure sensor VCC 23
X5
6
Oil pump L
Oil pump N
Oil valve 1 L
Oil valve 1 N
Oil valve 2 L
Oil valve 2 N
X2:1
7
Ignition L
Ignition N
Fan L
Fan N
L
N
Flame 1/ 0
X3:1
17
Flow sensor
GND
HSLC
HSLC
Flue gas sensor
GND
Fan PWM
Fan Hall
Fan GND
X4:1
Fan 230 V AC
i
Boiler temperature sensor
o
High limit safety cut-out
a
Flue gas temperature sensor
s
Fan PWM signal
d
Differential pressure sensor
f
WOLF GmbH | 81