23
TOP OUTLET FLUE ASSEMBLY
Calculation of flue cutting lengths
Measure the wall thickness
e
(mm)
For side flues, measure distance from inside face
of the side wall to the centre line of the boiler and
subtract 205mm to get dimension
a
(mm), see
dia-
gram 47
.
Refer to
table 3
for the cutting lengths of both the
inner and outer flue pipes for each of the various
flue options available.
Important :
All flue cutting lengths must be measu-
red from the terminal end of the flue pipes, see
diagram 49
.
When the dimension
X
measured on site is greater
than that given in
table 3
, a flue extension kit will
be required, refer to
table 4
for details.
Installation of flue assembly
●
Fit the rubber sealing collar (
P
) into the groove
at the outer end of the pipe (
N
).
●
Fit the outer pipe (
N
) into the wall with the groo-
ve to the outside.
●
Pull the pipe inwards to bring the rubber sealing
collar hard against the external wall, see
diagram
40
.
●
Lift the boiler and engage both fixing jig hooks
in the two support brackets on the back of the
boiler.
●
Lower the boiler until it rests on the outward fa-
cing lip at the centre of the connecting plate.
●
Make the connections between the boiler and
connecting plate using the sealing washers, flow
regulator and filters provided, see
diagram 41
.
Important.
The gas connection must be made first
as there is no flexibility in this connection. Do not
forget the sealing washer.
●
Fit the internal plastic flange (
Q
). Push it along
the pipe until hard against the internal wall, see
diagram 48
.
●
From inside, insert inner pipe (
O
) into the outer
pipe.
●
Fit both ‘O’ rings (
T
) into the flue elbow, one at
the inlet, one at the outlet. By necessity they are a
loose fit, apply a small amount of silicone grease
to each ‘O’ ring when fitting.
●
Slacken the two screws and fit the clamp and
seal (
R
) onto the elbow.
●
Take hold of the inner flue and push gently into
the elbow outlet taking care not to tear the ‘O’ ring.
Important :
if the flue has been cut, ensure that
there are no burrs that could damage the ‘O’ ring.
●
Push the elbow clamp and seal over the outer
flue.
●
Using the gasket supplied (
S
) fit the elbow onto
the boiler and secure in position with four screws.
●
Tighten clamp screws.
Diagram 47
e
e
a
a
X
X
∆
L1
∆
L2
∆
L1
∆
L2
Cutting length (mm)
Flue option
PVC
aluminium
Comments
outer pipe
inner pipe
Top outlet
e + 144
e + 224
maximum
Rear flue
wall thickness "e"
without
extension 511 mm
Top outlet
e + a + 115 e + a + 195
maximum
Side flue
distance "X"
(right or left)
without
extension 511 mm
Cutting length
Outer pipe
Inner pipe
Cutting length
Terminal end
Table 3
Flue option
Dimension "X"
N
°
of
extension kits
Side flue
745 to 1745 mm
1
(right or left)
1527 to 2745 mm
2
Table 4
Diagram 48
Hab 210
Pho 089
V
en 089
Diagram 49
