23
4000122704-1
232
65
L
12 Horizontal Top Flue Installation
Horizontal Top flue system
The maximum permissible length (L) is 3.5 m. For flue systems up to 0.5 m length, the flue restrictor must be fitted (a) inside the
fan outlet. 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.
Diagram 12.5
10317
a
Gasket
FLUE
RESTRICTOR
Pho 087
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 12.3
E
Diagram 12.4
Horizontal Top flue kit
12.4 Installation of horizontal top flue
assembly
• Fit rubber sealing collar (F), see diagram 12.3, 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.
• 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 the 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 collar.
• 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 0,5 m long, fit the flue restrictor (a)
into the fan outlet, see diagram 12.5.
• 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).
