Air/Flue Gas Routing Via Concentric Pipe Through A Shaft With Do-S Set For The Logamax Plusgb162 Up To 45 Kw - Buderus Logamax plus GB162 Technical Manual

10 Flue systems for balanced flue operation
10.4 Air/flue gas routing via concentric pipe through a shaft with DO-S set for the
Logamax plusGB162 up to 45 kW
Appliance type C
33x
Observe the general information on page 132 ff.
Logamax plus Maximum
permissible
total length L
GB162-15
GB162-25
GB162-25 T40S
GB162-35
GB162-45
Table 67 Maximum permissible total flue length
( fig. 133)
1) These lengths include the pipe diversions included in the
standard set; horizontal length L
2) Up to three reductions for additional bends or inspection bends
can be taken into consideration; more than three must be
checked on an individual basis
Adequate combustion air supply
The DO-S set is ideally suited for the modernisation of
older buildings, if the combustion air cannot be drawn in
via the existing chimney shaft (
supply of combustion air is assured via the concentric
air/flue gas line.
Air/flue gas line inside a shaft
For the vertical, concentric air/flue gas line, a shaft of fire
resistance category L 30 (F 30) or L 90 (F 90) would be
suitable. The minimum dimensions for the shaft
cross-section are required for the installation of the
air/flue gas line ( fig. 132).
Minimum dimensions and inspection apertures
Allow for inspection apertures in accordance with
regulations ( page 137).
144
Reduction of the total
length for each
1)
additional pipe
2)
diversion
[m] [m]
10 none
16 L – 1.5
16 L – 1.5
12 L – 1.5
10 L – 1.5
up to 2 m
1
page 133). An adequate
Fig. 132 Minimum dimensions of the shaft cross-section
for the installation of the air/flue gas line (dim.
in mm)
DO-S set
∅ 80/125 1)
1 10
Fig. 133 Installation version (dim. in mm)
A Flue gas
B Ventilation air
1)
Air/flue gas concentric
6 720 645 821 (2010/09) – Logamax plus GB162
160 × 160
Ø160
6 720 641 280-64.1il
A
7
B B
400
(11)
10
5/12
2
+
10
3
4
L
1
6 720 641 280-65.1il
L