Specifications

8.1.1
Removing
outer
case
(fig.44)
Remove
door
by unscrewing
hinge
pin
(b)
and
oullinq
door
out
and
down.
Remove
upper
banei
Oy
pulling
outwards.
Remove
gauge
jlanel
bir
iemoving
boiler
thermostat
knob'
'screw
over
rockei
switches
and
loosening
screws
(c)
and
sliding
right
hand
panel
to the
left.
Remove
side
panels by unscrewing
top and
buttom
screws
(d)
to clear
internal
clips
and
then
pulling
panels
outwards
and off'
In the
case
of
the balanced
flued
combi
boiler
VCW-sine
remove
the
4
screws
and washers
(A)
to
remove
combustion
chamber
case
as
shown
in
fig.45.
t
8.1.2
Draining
the
aPPliance
(fig.44
and
46)
When
necessary,
the
appliance
may
be drained
as
follows.
-
Open
air
vent
(18, fig.
46)
.
-
Drain
appliance
through
draln
nlpple
(tr,
fig.
46).
-
D-rain
domestic
heat
exchanger
via drain
screw
(C,
fig.
46)
as
well
as
pressure
relief
vdlve
(D,
fig.
46) at
the
lower
part
of
the
water
section.
8.2
Cleaning
of
burner
and
lint arrestor
8.2.1
Cleaning
of
burner
8.2.1.1
Balanced
llued
appliances
Remove
the burner
by
unscrewing
the retaining
union
nut
(E),
the
pilot
airfilter
(F),
take care
not
to
lose
the
pilot
inlector.
Remove
the
thermo
couple
by
pulling
down
and
taking
off
the high
ten6ion
lead
from
the
ignition
electrode.
L
{eir
'ry
28