Installation and operating instruction
Oil condensing boiler WTC-OB 18-B
9 Servicing
83311002 1/2018-03 La
89-132
9.19 Removing and refitting three way valve
Observe notes on servicing [ch. 9.1].
Removing
Close water side shut off devices to the heating system.
Drain the appliance on the water side.
Remove actuator
1
upwards.
Remove bayonet fixings
3
.
Undo bayonet catches
2
.
Remove three way valve.
1
2
3
Refitting
Fit three way valve as shown.
Close bayonet catches
2
until they click into place.
Fit bayonet fixings and actuator.
Loc
k
Open
Open
2