20
icos
-
Installation & Servicing
INSTALLATION
FLUE OUTLET
19B SETTING THE FLUE - SIDE
Wall thicknesses of 170 to 395mm
19A SETTING THE FLUE - REAR
Wall thicknesses of 210 to 435mm
Notes.
a.
If using the extension ducts go to Frame 18.
b.
For shorter flue requirements use non telescopic B
Pack.
1.
Measure and note wall thickness X. Refer to Frame 14.
2.
Measure distance from side of boiler to inside of wall
and add to wall thickness X=L. Refer to Frame 14.
3.
Add 115mm to dimension L and set telescopic flue
length as indicated in drawing.
4.
Using a 3.5mm drill bit, drill one hole in outer air duct
taking care not to pierce plastic inner flue.
5.
Fix to length using self tappers provided.
6.
Seal outer air duct using the tape provided.
Notes.
a.
If using the extension ducts go to Frame 18.
b.
If the stand-off frame is used it is essential to add
33mm to dimension X.
c.
For shorter flue requirements less than 210mm,
use non telescopic B Pack.
1.
Measure and note wall thickness X. Refer to Frame
12.
2.
Add 75mm to dimension X and set telescopic flue
length as indicated in drawing.
3.
Using a 3.5mm drill bit, drill one hole in outer air
duct taking care not to pierce plastic inner flue.
4.
Fix to length using self tappers provided.
5.
Seal outer air duct using the tape provided.
nm8944
X + 75
Drill hole
Adhere sealing tape
Measurement to be
taken from this point
nm8945
L + 115
Drill hole
Adhere sealing tape
Measurement to be
taken from this point
Summary of Contents for HE12
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Page 54: ...54 icos Installation Servicing NOTES...
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Page 58: ...Gas Safe Register ID Number...