Horizontal Concentric Flue System; Vertical Concentric Flue System; Vertical Flue System Via Roof; Preconditions For Installation - Bosch Condens 8300i W Installation And Maintenance Instructions Manual

Preconditions for installation

4.8

Horizontal concentric flue system

Inspection apertures
▶ Observe local standards and regulations.
Fig. 7 Horizontal concentric flue system via the external wall
Allowed maximum length
GC8300iW 35/40 C
Accessory Ø
[mm]
Ø 60/100
Ø 80/125
Table 6 Flue routing
4.9

Vertical concentric flue system

You can find information on the installation location and roof clearances
with vertical flue gas routing in Chapter 4.5 on page 11.
Inspection apertures
▶ Observe local standards and regulations.
4.9.1

Vertical flue system via roof

Fig. 8 Vertical concentric flue system
Allowed maximum length
GC8300iW 35/40 C
Accessory Ø
[mm]
Ø 60/100
Ø 80/125
Table 7 Flue routing
12
L
0010030884-002
Maximum pipe length L
[m]
11
35
0010030889-003
Maximum pipe length L
[m]
15
35
5 Preconditions for installation
5.1

General notes

▶ Observe all the current applicable national and regional regulations
as well as all technical rules and guidelines.
▶ Obtain all necessary approvals (gas supplier, etc.).
▶ Consider the requirements of the building authorities, e.g. when
using a condensate neutraliser (accessory).
▶ Convert open heating systems into closed systems.
▶ Do not use galvanized radiators or pipework.
5.2

Installation location requirements

DANGER
Danger to life from explosion!
An increased and permanent ammonia concentration may lead to stress
corrosion cracking on brass (e.g.gas valves, union nuts). As a result,
there is a risk of explosion from gas escaping.
▶ Do not use wall mounted gas boilers in rooms where there is an
increased or permanent ammoniac concentration (e.g. livestock
stables or storage room for fertilisers).
▶ If contact with ammonia is unavoidable, make sure that there are no
brass parts installed in the system.
Surface temperature
The maximum surface temperature of the appliance is below 85 °C.
Therefore no special safety measures are required to protect flammable
materials and fitted furniture. Country-specific regulations must be
observed.
Wall structure
The wall used for installation of the appliance must be load-bearing and
the appliance must be able to rest on it over the entire surface.
Protection zones in damp areas
Observe all the current applicable national and regional regulations as
well as all technical rules and guidelines. These may contain additional or
deviating requirements for installations in damp areas.
▶ Do not install any switches, sockets or devices with mains power
supply in the protection zones.
▶ Connect device to a residual current circuit breaker.
▶ Use only control units with suitable IP rating.
Condens 8300i W – 6721841531 (2022/10)