Glow-worm Xtrafast 96-120 - Manual (Page 15)

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10 Flue Installation
10.1 Top outlet flue - kit 86285
The boiler is only suitable for top outlet flue connection.
10.2 Rear flue systems
(Refer to diagram 10.1). To calculate the length when flueing to
the rear measure wall thickness e plus 160 mm for the outer air
duct and e plus 244 mm for the inner flue duct measurement.
10.3 Flue systems Right or Left
(Refer to diagram 10.1). To calculate the length when flueing to
the side measure wall thickness e plus inside of wall to side of
boiler a add 145(mm) for the outer air duct and wall thickness e
plus inside of wall to side of boiler a add 229(mm) for the inner flue
duct measurement.
• Refer to diagram 10.2 (Table A) for cutting lengths of both flue
duct and air duct pipes for each of the various flue options
available.
Important: All flue cutting lengths must be measured from the
terminal end of the flue pipes, see diagram 10.2 (D).
When the dimension X measured on site is greater than that given
in diagram 10.2 ( Table B ), extensions will be required as
necessary.
Calculation of flue cutting lengths for extended flue
•Using the correct number of extension kits as (Table B), measure
dimensions a and e, see diagram 10.1. Cut both the flue duct and
air duct pipes to the dimensions given in (Table C)
Important: All cutting lengths should be measured from the push
fit joint end of the extension pipe. Do not leave any burrs or sharp
edges on the cut ends of the pipes. Note : maximum horizontal
flue length without bends is 3.5m.
9659 Diagram 10.1
e e a a
70mm 70mm
X X
Rear flue
Air Duct pipe : e + 160,
Flue duct pipe : e + 244
Note : maximum distance 'x' without extension 756 mm
Side flue (right or left)
Air Duct pipe : e + a + 145, Flue duct pipe : e + a + 229
Note : maximum distance 'x' without extension 990 mm
Ven 089
Diagram 10.2
Cutting length
Outer pipe
Inner pipe
Cutting length
AIR DUCT PIPE
FLUE DUCT PIPE
Flue option Dimension 'X' No. of extension kits
Side flue 991 to 1991 mm 1
(left or right) 1991 to 2991 mm 2
Note: Maximum flue length for 120 model is 2 metres
Table B: Number of extension kits required
(D) Table A: Flue cutting lengths (mm)
Rear flue option
Air Duct pipe : e + a - 755,
Flue duct pipe : e + a -755
Note : maximum distance 'x' without extension 990 mm
Table C: Flue extention cutting lengths (mm)