Glow-worm hxi and Gas Valve - Manual (Page 25)

25 0020008153-05
8 Flue Preparation Telescopic and Standard Flue
8.2 Flue Length
Top Rear flue - Standard - with the flue elbow temporarily
fitted, measure the distance from the outside wall to the butt
joint, see diagram 8.3. If the measurement 'Y' exceeds 652mm,
then the appropriate length of extension pipe is required. The
minimum dimension is187mm to suit a 75mm min wall thickness.
Top Rear flue - Telescopic - with the flue elbow temporarily
fitted, measure the distance from the outside wall to the butt
joint, see diagram 8.4. If the measurement 'Y' exceeds 525mm,
then the appropriate length of extension pipe is required, if the
dimension is less than 320mm DO NOT cut the flue, it can
project to a maximum of 600mm, if this is not desirable then a
Standard flue MUST be used and cut to length.
Top Side flue - Standard - with the flue elbow temporarily fitted,
measure the distance from the outside wall to the butt joint, see
diagram 8.5. If the measurement 'Y' exceeds 652mm, then the
appropriate length of extension pipe is required. The minimum
dimension for Lhd is 270 and Rhd is167 to suit a minimum wall
thickness of 75mm.
Diagram 8.3
Diagram 8.6
TOP SIDE FLUE - STANDARD
TOP REAR FLUE - STANDARD
Diagram 8.4
Diagram 8.5
TOP SIDE FLUE - TELESCOPIC TOP REAR FLUE - TELESCOPIC
12658
12851
12850
12843
WALL THICKNESS 112
DRILL AND
SCREW
BOILER
MOUNTING WALL
OUTSIDE
WALL FACE
Y
DRILL AND
SCREW
COLLAR
WALL THICKNESS 112
DRILL AND
SCREW
BOILER
MOUNTING WALL OUTSIDE
WALL FACE
Y
COLLAR
Y
INNER
PLASTIC
COLLAR
L
FLUE
OUTSIDE
WALL FACE
C
OUTER
RUBBER
COLLAR
AIR
DUCT
FLUE
DUCT
COLLAR
DRILL AND
SCREW
Y
INNER
PLASTIC
COLLAR L
FLUE
OUTSIDE
WALL FACE
C
OUTER
RUBBER
COLLAR
AIR
DUCT
FLUE
DUCT
COLLAR
DRILL AND
SCREW
Top Side flue - Telescopic - with the flue elbow temporarily
fitted, measure the distance from the outside wall to the butt
joint, see diagram 8.6. If the measurement 'Y' exceeds 525mm,
then the appropriate length of extension pipe is required, if the
dimension is less than 320mm DO NOT cut the flue, it can
project to a maximum of 600mm, if this is not desirable then a
Standard flue MUST be used and cut to length.