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INSTALLATION
mini HE --- Installation & Servicing
19
16 CUTTING THE FLUE
Notes.
A If using the extension ducts go to Frame 17.
B If stand---off frame is used it is essential this is taken into
consideration when marking the flue (see Frame 11).
1 Measure and note the wall thickness.
2 For side flues measure and note the gap between the
casing and wall.
3 From the table in Frame 11, determine the flue le ngth
required. Mark and cut both outer and inner tube.
Ensure the support spring clip is in position to facilitate
cutting.
4 Toensurethetubeiscutsquare,markthefluealltheway
around.
Measure from
this
RING
17 FITTING THE EXTENSION KITS
1 Fittheinnerflueextensionductontotheinnerflueduct.
2 Fit the outer flue exte nsion duct onto the outer air duct.
3 Repeat steps 1 a nd 2 if a second flue extension is
required.
4 Measure and mark the flue length required onto the flue,
measuring from the ring near the t erminal. (Refer to Frame
11 for the detail of flue length calc ulation).
5 To ensure a square cut, mark the flue all the way around.
6 De --- bu rr t he cu t e dg es.
1
2
Measure from
this
RING
INSTALLATION