Robur B15 Generators Series, Installation, User And Maintenance Manual

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16
Type • B
23
installation: this type has the combustion air intake inside the room and
the fumes exhaust outdoors via a dedicated tube, which may be either horizontal
or vertical. In this case, the appliance is not sealed off from the room (see Figure
3.5
→
17).
Type • C
13
installation: The fumes exhaust and the air intake are routed in coaxial or
separate horizontal tubes (or wall-mounted, see Figure 3.6
→
19). In this case, the
appliance is sealed off from the room.
Type
• C
33
installation: the fumes exhaust and the air intake are routed in coaxial or
separate vertical tubes (or roof-mounted, see example C33 in Figure 3.7
→
19). In
this case, the appliance is sealed off from the room.
Type
• C
53
installation: the fumes exhaust and the air intake are routed in separate
tubes which exit outside the building and at a distance from each other. This type
of installation enables implementation of air intake, for example, with horizontal
tubes (or wall-mounted) behind the appliance, and the fumes exhaust distant from
the appliance with a horizontal or vertical tube (or roof-mounted, see example C53
in Figure 3.7
→
19). In this case, the appliance is sealed off from the room.
Type • C
63
installation: this type enables the implementation of fume/air instal-
lations using commercially available tubes, bends and terminals (homologated).
Furthermore, it enables the use of tubes of diameter greater than 80 mm: fro ex-
ample when very long air/fumes systems are required. In this type of system, the
calculation of the sir/fumes system requires the data provided by the tubes manu-
facturer, as well as the composition, flow rate and temperature of the fumes them-
selves (see Table 3.1
→
17).
In any case, always use tubes which are homologated for the type of installation in
question. RoBUR s�p�A� can provide homologated rigid tubes, coaxial tubes and
terminals.
In order to dimension the system of tubes, you must calculate the total pressure drop of
the system.
The
total admitted pressure drop is given in Table 3.1
→
17. The pressure drops of the fumes,
air and coaxial tubes supplied by ROBUR, are given in Table 3.2
→
17 (for dia. 80 and 100).
The
pressure drops of external terminals
need not be considered as they are negligible.
When designing the system, check that the sum of pressure drops of the system of tubes
is less than the maximum pressure drop permitted for the appliance (see Table 3.1
→
17).
The following pages give an example calculation of the pressure drop.
For the maximum admitted lengths (APPROXIMATE) for the air and fumes tubes, depend-
ing on the type of installation in question, refer to Table 3.3
→
18 and the note following
it.
If the horizontal fumes tubes are longer than 1 metre, to prevent condensation return-
ing to the appliance, the tube must be installed at a downwards slope of 2 or 3 cm per
metre of length (see Figure 3.4
→
17). Furthermore, for a correct installation of the ex-
ternal fumes exhaust and air intake terminals, observe the instructions given in Figure
3.8
→
20.