14
STRATA1
3 8 & 3 8 / 4 6 C O M B I
13.0 room sealed flue installations (contd)
installation of standard wall terminal
In order to determine the length of concentric tube required to correctly terminate a side outlet
arrangement, the following procedure should be followed:
1. Measure wall thickness W in mm - see fig 7.
2. Measure distance between side of appliance and inside face of wall L1 in mm see fig 7.
3. Mark off and cut flue tubes following guidance shown in fig 8 below. Flue tubes should be cut to length
TL in mm. Both inner and outer tubes should be cut flush with each other, square and any
burrs removed.
Where TL required, is greater than 845 mm, then additional lengths (as appropriate) of 80/125
concentric tube will be required to extend the standard wall terminal. A fall of 3˚ is required along the
length of the flue towards the appliance.
detail for marking out for
cutting flue hole for side flue,
room sealed horizontal
arrangement
Cut Flue Hole
ø 130mm
Line-T
op of
Appliance C
hassis
155
170
side outlet
170
L1
W
Plain
Section
Installed
Uppermost
Wall Bezel
Plates
Required Length
Cutting Line
measure from
this point
TL (mm)
TL = W+L1+235mm
concentric wall terminals
945
610
850*
845
Standard Horizontal
Discharge Wall Terminal
(supplied with 80/125
Concentric 90º bend and
wall bezel plates not
shown)
Horizontal Wall Terminal
With Extendible Vertical
Discharge (supplied with
80/125 Concentric 90º
bend and wall bezel plates
not shown)
ø
125
ø
80
ø
125
ø
80
Fig 7.
Fig 8.
Fig 9.
side outlet
(3˚
fall to
appliance)