Buderus Logamax plus GB162 Technical Manual page 112

9 Flue systems for open flue operation
Explanation of the identification for Buderus
• Temperature category T120
– Permissible flue gas temperature ≤ 120 °C
– Test temperature 150 °C
• Pressure category H1
– Leakage rate 0.006 l·s
– Test pressure 5000 Pa high pressure flue systems
• Soot fire resistance category o
– Flues that are not resistant to soot fires
• Condensate resistance category W
– Flues for moist operation
• Corrosion resistance category 2
– Fuel oil with a sulphur content up to 0,2 % (also
applicable to gas)
• Clearance from combustible materials
– The clearance of the outer casing of a flue system to
combustible materials is designated Oxx. The value
of xx is quoted in mm.
Example: O50 corresponds to a clearance of
50 mm.
– The clearance towards combustible materials
applies when utilising the temperature category
T120. If this is seen in conjunction with the boiler,
then the maximum possible flue gas temperature of
the boiler is decisive. If that lies below 85 °C, then
no clearance is required. This must be specified in
the manufacturer's documentation. When utilising
single wall flues with the Logamax plus GB162,
O00 applies.
• Installation location
– Category I for the installation of the flue system or
parts of the flue system inside a building
– Category E for the installation of the flue system or
parts of the flue system inside or outside a building
• Fire resistance category D (fire characteristics)
– Not negligible contribution to a fire
• Casing categories
– L0 for non-flammable casing
– L1 for flammable casing
– L for designs without casing
The flue system must be identified as
system-certified following installation. For
this purpose, an ID label is therefore supplied
with each standard set (
112
–1 –2
·m
fig. 97).
Diesen Aufkleber an der Abgaseinführung als zusätzliche
Kennzeichnung der Abgasanlage anbringen.
Systemzertifizierte Abgasanlage für Buderus
Gas-Brennwertkessel Logamax plus
Öl/Gas-Brennwertkessel Logano plus
Zulässige Installationsarten und Produktidentnummer siehe
Kesseltypenschild. Zulässige maximale Baulängen und weitere
Informationen entnehmen Sie bitte der Montageanleitung des
Abgassystems oder der Planungsunterlage.
Die Produkte der Abgasanlage erfüllen ebenfalls die Anforderungen der
EN14471 und können somit bei von der Systemzertifizierung abweichenden
Installation gemäß nationaler Verwendungsregeln und den Produktvorgaben der
CE-Zertifizierung 0036 CPD 9169 003 verwendet werden. Hierbei gilt:
Abgasleitung
• für Überdruck / Unterdruck
• für Brennstoffe Gas oder Heizöl EL
• maximal zulässige Abgastemperatur 120 °C
• Kennzeichnungsklassen:
einwandig: EN14471 T120 H1 O W2 O20 I D L
konzentrisch: EN14471 T120 H1 O W2 O00 E D L0
Fig. 97 ID label for system certification
Combustion air supply
In open flue mode, the fan of the gas condensing boiler
draws in the required combustion air from the installation
room. A special ventilation air grille prevents the ingress of
foreign bodies. It is part of the standard delivery of
Buderus standard sets GA, GA-X and GN.
Condensate drain from the flue
To ensure the safe drainage of condensate, the flue must
be installed with a 3° slope (5 cm/m) from the vertical
section of the flue system towards the boiler. In the case
of longer horizontal flue sections it may be necessary to
support the horizontal section on site to ensure the
correct slope towards the boiler. The condensate from the
flue and from the flue gas header in the gas condensing
boiler flows directly into the stench trap (siphon) of the
gas condensing boiler.
Drain the condensate from the moisture-resistant flue
system on site when connecting to a moisture-resistant
flue system with the Buderus sets GN or GA-X with
LAS-K (LAS multiple connection).
In flue cascades, the condensate flows from the vertical
flue inside the shaft and the horizontal flue gas header via
a special terminal piece with integral condensate drain,
directly into a separate siphon that is part of the standard
delivery of the Buderus standard set for flue cascades.
Route the condensate from the gas
condensing boiler (the flue) and the
moisture-resistant flue system correctly to
the public sewer or neutralise it, if required.
Special design information regarding
condensate drainage
6 720 645 821 (2010/09) – Logamax plus GB162
D – 35573 Wetzlar
sowie
6 720 642 463-76.1il
chapter 7.