Maximum Flue Length (L); Additional Flue Parts - Bosch Worcester GB162-50 V2 Installation, Commissioning And Servicing Instructions

Fig. 23 Side flue and rear flue installation
Standard vertical flue pack ( fig. 24) for 50-V2 and 65-V2:
• Concentric vertical flue pipe 80/125;
• Wall clamp.
Standard vertical flue pack ( fig. 24) for 85-V2 and 100-V2:
• Concentric vertical flue pipe 100/150;
• Wall clamp.
Fig. 24 Standard vertical flue pack
3.8.2

Maximum Flue length (L)

The maximum pipe length (L) of the flue run is determined by the total
pressure loss of all components in the flue system.
Maximum length of horizontal or vertical extensions for 80/125 and
100/150 flue system ( fig. 25 and fig. 26). For flue length see
table 11.
6720814332 (2018/04)
L
415 mm
25 mm
6720648726-28.2TD
Fig. 25 Vertical flue length
Fig. 26 Horizontal flue length
[A]
[B]
[L]
6 720 648 726-029.1TD
Take the flue pipe clearances into account when installation the
linstallation location.
Maximum wall thickness without extensions is 415 mm. Maintain a
minimum side clearance of 25 mm ( fig. 23).
3.8.3
The additional flue parts listed can be ordered from your chosen heating
merchant.
Flue size 100/150 and 80/125
Model
50-V2
65-V2
85-V2
100-V2
Table 11 Max. flue lengths, incl. wall/roofterminal in metres
L
L
B
A
Distance from centre of flue to inside rear wall
Distance from centre wall bracket to centre of flue elbow
Distance from centre of flue to outside wall

Additional flue parts

Maximum flue length [m]
concentric flue system
100/150 mm
20
20
18
18
Pre-Installation
6 720 648 726-030.1TD
6 720 648 726-031.1TD
80/125 mm
7.7
7.7
–
–
17