UK/IRL
23
UK/IRL
22
5.2 Connection onto an existing chimney
You can connect the appliance onto an existing chimney. The existing chimney then
functions as air supply, where a flexible stainless steel liner (to BS715) of 100 mm
performs the flue function. Any existing chimney used as an air supply must only
service this appliance.
Requirements:
- 300 mm of free space above the appliance;
- The chimney only supply’s air to this appliance;
- The existing chimney needs to be clean and very well swept;
- The existing chimney needs to be airtight;
- The existing chimney needs to have an opening of
min. 150 x 150 mm.
1. Place the aluminium closure plate (A) onto the
chimney. Permanently attach and make airtight.
2. Cut down the roof mounted terminal (B) to the
required length. At least cut off 500 mm. Leave
the inner pipe at least 100 mm longer than the
outside pipe. You need the cut off pieces for
connection of the appliance.
3. Pull the liner (C) through the chimney.
4. Connect the liner onto the roof terminal and fix
this with the clamp provided with the chimney
connection set.
5. Place the roof terminal onto the closure plate.
6. Fixing the chimney sealing plate (D) and place
the 150 mm grommet into the hole of the
sealing plate.
F
E
D
C
B
A
fig. 10
5. INSTALLATION OF THE FLUE
5.1 Connections with use of concentric duct material
- Build the system starting from the appliance on.
- Make a hole of ø 153 mm for the wall or roof mounted terminal.
- Make sure you place the pipes in the right direction, the narrow
end towards the appliance.
- Make sure the pipes are fixed sufficiently, a wall clamp every 2m, so
the weight of the pipes is not resting onto the appliance.
- The outside of the pipe can become hot (140 degrees). Stay 50 mm
away from wall surface or sealing. Make sure to provide sufficiently
heat resistant isolation when going through the wall or roof.
- Because of expansion or cooling down the concentric pipes can turn
loose. It is recommended to fix the spring clip with a self tapping
screw at inaccessible places.
- To get the exact measure flue length you can use cut down-
concentric pipe, wall mounted terminal or roof mounted terminal. To
obtain a smoke sealed connection, the inner pipe must be 20 mm
longer then the outside pipe.
- The horizontal pipes need to rise away from the appliance at a rate
of 3 degrees per metre.
