Installation and operating instruction
Oil burner WL40Z-A
9 Servicing
83298002 3/2019-11 La
66-112
9.6 Removing the mixing head
Observe notes on servicing [ch. 9.1].
Remove flame sensor QRB4
5
or flame sensor RAR9 (optional).
Remove solenoid valve plug
1
.
Unplug ignition cable
2
.
Remove pressure hose
4
.
Undo screws
3
.
Turn mixing head to the left up to the recess and remove.
5
1
2
3
4