12
FLUE INSTALLATION
Installation of flue assembly
l
Fit rubber sealing collar (A), see diagram 13, into
groove at the outer end of pipe (B).
l
Fit outer pipe (B) into wall with groove to the out-
side.
l
Pull pipe inwards to bring rubber sealing collar
hard up against external wall, see diagram 14.
l
Fit internal plastic flange (C) onto outer pipe. Push
along the pipe until engaged against internal wall.
l
From inside, insert inner pipe (D) into outer pipe.
l
Fit both ‘O’ rings (E) into the flue elbow (F), 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.
l
Slacken the two screws and fit the clamp and
seal (G) onto the elbow.
l
Take hold of the inner flue and push gently onto
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.
l
Push the elbow clamp and seal over the outer
flue.
l
For flue systems less than 1,5 m long, leave the
restrictor (a) fitted in the fan outlet, see diagram
15.
l
Remove the backing from the self adhesive gas-
The standard flue kit 85090, see diag. 13, comprises :
- External rubber sealing collar .................................. A
- Outer pipe ...................................................................... B
- Plastic flange ................................................................. C
- Inner pipe ....................................................................... D
- 2 ‘O’ rings ........................................................................ E
- Elbow ................................................................................ F
- Clamp and seal ............................................................ G
- Gasket ............................................................................. H
- Four screws ..................................................................... I
ket (H) and carefully fit gasket to base of flue el-
bow.
l
Fit elbow onto boiler and secure with the four
screws (I).
Concentric flue system
The maximum permissible length (L) for the concentric flue system is 3,5 m. For flue systems up to 1,5 m
length, the restrictor (a) supplied fitted to the boiler, inside the fan outlet, must be left in place. For longer
flue systems, the restrictor must be removed.
For each 90
°
flue elbow used, (or two 45
°
elbows) the maximum permissible length (L) must be reduced
by 1 metre.
Table 4
Flue extension cutting lengths
Cutting length
Flue option
outer pipe
inner pipe
Comments
Side flue
e + a -755
e + a - 755
maximum
(left or right)
dimension 'X'
without
extension 990 mm
Pho 088
A
C
G
I
E
H
D
B
F
Pho 087
Diagram 14
Diagram 13
Hab 249a
Diagram 15
234
65
L
a
Gasket
Содержание ISOFAST F 28 E
Страница 32: ...32 ...