Glow-worm Xtrafast 96-120 - Manual (Page 16)

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10 Flue Installation
10.4 Installation of flue assembly
• Fit rubber sealing collar (F), see diagram 10.3, into groove
at the outer end of pipe (A).
• Fit air duct pipe (A) into wall with groove to the outside.
• Pull pipe inwards to bring rubber sealing collar hard up
against external wall, see diagram 10.4.
• Fit internal plastic flange (G) onto air duct pipe. Push along the
pipe until engaged against internal wall.
• From inside, insert flue duct pipe (B) into air duct pipe.
• Fit both ‘O’ rings (J) into the flue elbow (C), 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.
• Fixing collar (D) over air duct pipe (A) and elbow (C) ensuring
it is the correct way round (Note: the fixing collar can only be
fitted one way due to different diameters of the flue elbow and
air duct).
• Take hold of the flue duct pipe and push gently onto the elbow
outlet taking care not to tear the ‘O’ ring.
• Open fixing collar (D) and locate between elbow and air duct
pipe (A). Close fixing jig.
• Engage the two fixing clips (E) onto the collar (D) and press
down to lock into position. Secure clips with screws provided.
Important: If the flue has been cut, ensure that there are no
burrs that could damage the ‘O’ ring.
• For flue systems less than 1,5 m long, leave the restrictor (a)
fitted in the fan outlet, see diagram 10.5.
• Remove the backing from the self adhesive gasket (H) and
carefully fit gasket to base of flue elbow.
• 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.
Pho 087
Diagram 10.5
Pho 451
B
C
J I
H
F
G
A
D
The flue kit 86285 is 1000 mm long and comprises:
- Air duct pipe .......................................................... A
- Flue duct pipe ........................................................ B
- Flue elbow .............................................................. C
- Fixing collar ............................................................. D
- Locking clips ............................................................ E
- External rubber sealing collar ............................... F
- Internal flange ....................................................... G
- Gasket ..................................................................... H
- Screws ....................................................................... I
- 'O' rings ..................................................................... J
Diagram 10.3
E
Diagram 10.4
Hab 249a
234
65
L
a
Gasket