Specifications

4.3.1
lnstallation
aids
4.3.1.1
Open
flued
combi
boiler
After
fixing
the
connecting
group to
thewall
put
the
template
in
position
ancl
mark
posltlons
oI
fixing
holes.
The
type
of fixing
used
will depend
on the
type
of
wall.
4.3.1.2
Room
sealed
combi
boiler
After
installinq
the
terminal/duct
assembly,
hano
the
tempi-ate
on
the
fixing
bolts
(1
)
and
drill
the 5
holes
with
8
mm
(5/16
inches)
diameterto
fit the
connecting
group.
Use
the alternative
fixing
holes
where
necessary.
4.3.2
Domestic
cold
and
hot
watel
connection
-
Flush
out
all
loreign
matter
from
the
supply
pipe
before
connecting
to
the
connecting
grouP.
-
Fit
the
domestic
mains
water
pipe
to
the
riqht
hand
compression
union
(2)
and
the
h5t
water
pipe
to
the
left hand
compression
union
(3).
ln hard
water
area
the
mains supply
to union
(2)
should
be
via
a scale
reducer'
-
bhect
domestic
water
system
for sound-
ness.
N.B.
Thecombi
boilerhas
amaximumworking
oressure
of
10 bar.
lf water
pressure
bxceeds
this a
pressure reducing
valve
will
have to
be
fitted
to cold
water
inlet.
10
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+1-
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