Rotex GasCompactUnit Series, Инструкция по установке и обслуживанию

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Fig. 3.4.3 shows the most important standard
assemblies.
The design prevents higher temperatures than
80 °C at any component outside the boiler
casing during operation at the rated output.
Consequently, no specific minimum distance to
components made from combustible materials
must be maintained. However, in general no
easily flammable or ignitable materials should
be stored or used in the immediate vicinity of
the boiler — maintain an adequate distance.
Table 3.2.1 summarises the maximum
permissible flue heights for those cases,
where the GSU/GCU is operated in the rated
output range.
A specific calculation can be made for those
cases, where the output range is limited for
certain reasons. The system flue gas volume
flow is subject to the selected burner output,
as shown in Fig. 3.2.1 and in Table 9.1. For
parameters relating to the flue gas calculation,
see chapter 9.
Note: If more than 3 diversions in excess of
45° are required in the flue, the maximum
height reduces by 1 m per diversion - it may be
necessary to carry out a flue gas calculation.
The maximum height will also be reduced if
the horizontal connecting piece must be
extended. It is reduced by the length, by which
the connecting piece is extended.
General information regarding
the flue gas system
Regarding the layout and sizing of
the flue gas system, reference is
made to the respectively applicable
fire prevention regulations and DIN 18160
[or local regulations].
Generally speaking, the system can be
connected to any flue with Building
Regulation approval, subject to the follow-
ing conditions (leaning on DIN 18160-1)
being met:
• suitable for at least 120 °C
(temperature class T 120 or higher)
• withstands at least 200 Pa positive
pressure
(pressure class P1 or H1)
• moisture-resistant
(condensate resistance class W)
• adequate corrosion resistance
(corrosion resistance class 1 or 2)
These properties of the flue gas system
must be identifiable at the installed
system. For this purpose, a type plate
appertaining the flue must be fitted in the
installation room.
• We strongly recommend the use of the
ROTEX flue gas sets, as these are fitted
with particularly acid-resistant gaskets.
The maximum permissible flue gas back
pressure is 200 Pa. The pressure drop in
the air supply line must not exceed 50 Pa.
Where possible, the angle of introduction
of the flue into the chimney should be
approx. 3°. Implement horizontal sections
of the flue pipe with an incline of
approx. 3°. Nowhere along the length of
the flue must a counter-slope occur.
Maximum permissible effective height of the flue pipe in metres:
Installation version GSU 25, GCU 25/D
N
80 GSU 35, GCU 35/D
N
80
1 1) 22 22
4 2) 15 18
5 2) 20 22
6
2)
20 22
1) Duct cross section with DN 80: 135 mm x 135 mm
2) Concentric balanced flue DN 80/125
Table 3.2.1: Max. effective height of the flue pipe
Fig. 3.2.1: Flue gas mass flow/burner output ROTEX GasSolarUnit