If the silencer is longer ...
.... than the wall, unscrew the four retaining screws on the inlet side of the silencer. Lift off the inlet
plate. Cut the outer and inner pipe so the length fits the wall thickness. Trim off excess mineral
wool insulation and mount the inlet plate. Continue the installation as described below.
1.3.3
Installation of the fan
Step Action
Drawing
1
Place the fan (silencer) through the hole from the outside.
Mark off the four holes of the fan flange on the external
wall (see figure and table at page 5).
2
Remove fan assembly, drill holes and insert rawlplugs sup-
plied. Apply mastic to the underside of the flange, replace
fan assembly and anchor it firmly to the wall with the four
screws supplied.
3
Connect the flue pipe to the silencer on the inlet side of the
fan.
Use flue cement to make airtight connections.
4
Make sure that:
• the gas seal, if any, fits tightly around the silencer
• the fan is mounted with the outlet facing downwards
5
Pack 50 mm mineral wool around the part of the flue pipe
which is located in the wall. The cavity between the outer
and the inner brick leaf and the space between the brick
walls and the silencer should be filled with mineral wool.
6
Finish by packing flush with the internal wall face.
3001147 RSG-RSGC NO SE UK 150114
6
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UK
