Cleaning Of Lint Arrestor; Cleaning Of Main Heat Exchanger; Balanced Flued Appliances - Vaillant VCW 2O Instructions For Installation And Servicing

8.2.2 Cleaning of lint arrestor
(open flued aPPliances)
Remove the lint arrestor by pulling downward
the part which is near the connections of the
appliance.
Clean with the light brush or a vacuum cleaner.
Reassemble in reverse order.
8.3 Cleaning of main heat exchanger
8.3.1 Balanced flued aPPliances
Remove burner as under 8.2.1 .1 . Slacken the 2
screws holding the flue hood and slide hood up
as far as possible.
Remove sensor (3) of overheat cut-off
device from pocket on left hand side of heat
exchanger. Undo union nuts (G) on heat
exchanger unions and slacken locking nuts (H)
above them. Remove heat exchanger.
Clean heating body especially fins carefully
with hot waier, detergents and brush. lf
necessary descale with propriety descaling
aqent. Do not bend the fins. lf necessary,
st-raighten carefully with screwdriver.
8.3.2 Open flued aPPliance
Remove burner assembly as under 82.1 .2.
Slacken split collar.
Slacken the 2 screws holding the draught
diverter and slide draught diverter up as far as
possible. Remove sensor (3) of the overheat
but-off device from the pocket on left hand side
of the heat exchanger. Undo union nuts (G) on
the heat exchanger unions and slacking locking
nuts (H) above them. Remove heat exchanger'
clean heating body and especially fins carefully
with hot water, detergent and brush. lf
necessary, descale with proprietary descaling
aoent. Do not bend the fins, if necessary
st"raighten caref ully with screwdriver.
L
30