Glow-worm Energysaver Combi 80-100 - Manual (Page 15)

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7.1 Flue Length
Note: All dimensions are in mm.
For a rear flue, measure the distance from the outside wall face
to the boiler mounting wall. Check that the flue length will be
suitable, see diagram 3.1 for a standard flue system.
For a side flue, measure the distance from the outside wall face
to the flue outlet centre line of the boiler. Check that the flue
length will be suitable, see diagram 3.2 for a left hand flue
system or diagram 3.3 for a right hand flue system.
If the measurement exceeds those shown in diagrams 3.1 - 3.3
then one or more extension pipes are required.
7.2 Rear Flue
Mark the air duct assembly and the flue duct at the lengths
shown in diagram 7.1 then cut to length, cutting square and
removing any burrs.
7.3 Standard Side Flue
Mark the air duct assembly and the flue duct at the lengths
shown in diagram 7.2 then cut to length, cutting square and
removing any burrs.
7.4 Side Flue With Extensions
Measure the distance from the outside wall to the side of the
boiler casing. With the extensions only joined together (i.e.
without standard flue piece fitted) cut the end nearest to the
boiler, to the dimensions shown in diagram 7.3.
7.5 Flue Assembly
The flue assembly is an entirely push fit design.
The rubber seals should be lubricated prior to assembly.
Remove all burrs from cut pipes.
Diagram 7.4 shows the components supplied in the standard
flue kit.
Having cut the air and flue ducts as described in sections 7.1 -
7.4, assemble the flue as follows: the flue can be assembled
externally and internally by following sections A & C, or entirely
from inside by following sections B & C.
A. External fitting - Fit the rubber sealing collar ‘D’ into the
groove at the outer end of the air pipe ‘B’.
Push the air pipe ‘B’ into the wall until collar ‘D’ is pushed up
against the outside face of the wall.
Ensure that the ‘up’ label on air pipe ‘B’ is at the top, i.e. the tab
protruding into the hole at the outer end of the pipe is uppermost.
B. Internal fitting - Fit the rubber sealing collar ‘D’ into the
groove at the outer end of the air pipe ‘B’.
Fit spacer piece ‘E’ over air pipe ‘B’.
Push the air pipe ‘B’ through the wall until collar ‘D’ is clear of the
outside face of the wall.
Pull the air pipe ‘B’ to ensure that collar ‘D’ is pulled up to the
outside wall face.
Ensure spacer piece ‘E’ is pushed into the wall, see diagram
7.1.
C. Fitting Completion - Fit sealing flange ‘F’ over the air pipe
and against the inside wall face.
From inside fit flue pipe ‘A’ into the air pipe ‘B’ ensuring that the
groove on the outer end engages in the air pipe tab.
Fit the flue pipe spacer ‘C’ over the flue pipe ‘A’ and push inside
air pipe ‘B’.
Attach any extension pieces necessary.
7 Flue Preparation
Diagram 7.3 SIDE FLUE EXTENSION
6554
Y
CL
BOILER
Y - 483 LEFT FLUE DUCT
Y - 417 RIGHT FLUE DUCT
Y - 493 LEFT AIR DUCT
Y - 427 RIGHT AIR DUCT
OUTSIDE
WALL FACE SIDE OF
BOILER
AIR DUCT
FLUE
DUCT
125
DIA.
HOLE
Diagram 7.1
X + 196
( AIR DUCT ASSEMBLY)
X + 271
( FLUE DUCT )
X
OUTSIDE
WALL
FACE
Diagram 7.2 SIDE DUCT -STANDARD FLUE
6555
BOILER
MOUNTING
WALL
6505
REAR FLUE
Y + 297 LEFT FLUE DUCT
Y + 363 RIGHT FLUE DUCT
Y + 222 LEFT AIR DUCT
Y + 288 RIGHT AIR DUCT
CL
BOILER
Y
OUTSIDE
WALL FACE
SIDE OF
BOILER
AIR DUCT
FLUE
DUCT