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3.3.2 Installation room and environmental conditions
Operating Conditions
Temperature in the boiler room
Relative humidity
Dust/airborne seeds
Halogenated hydrocarbon
compounds
Fans which extract air from the
boiler room.
Small animals
Fire safety
Flooding
Tab. 7
Boiler room and environment
3.3.3 Combustion air supply conditions (open flue operation)
Operating Conditions
Ventilation air cross-section for
combustion air from outside for
open flue operation (split over
no more than 2 vents)
Tab. 8
Observe country-specific requirements for open flue operation.
For balanced flue operation
Logano GB125 oil condensing boiler - Technical specifications are subject to change without prior notice.
Notes – detailed requirements
+5 to +40 °C
Max. 90 %
No condensation or dripping damp inside the boiler room
–
Excessive dust must be prevented inside the boiler room when the boiler is
operating, e.g.:
– Building dust through very dusty building work
The supply of combustion air must not contain excessive amounts of dust
or airborne seeds; if necessary, entry should be prevented with air filters,
e.g.:
– Air supply loaded with dust from dirt roads and paths.
– Air supply loaded with dust from production and processing facilities, e.g.
quarries, mines, etc.
– Airborne seeds from composite plants.
–
The combustion air must be free from halogenated hydrocarbon com-
pounds.
– Identify the source of halogenated hydrocarbon compounds and eliminate
their ingress. Where this is impossible, route combustion air from areas which
are not contaminated by halogenated hydrocarbon compounds.
Observe the following:
– Buderus catalogue - Heating Technology Germany
– Worksheet K 3 in the Buderus catalogue
–
During burner operation, no mechanical air handling equipment may be operated
which could extract combustion air from the boiler room, e.g.:
– Cooker hood
– Dryer
– Ventilation equipment
–
Prevent small animals from entering the boiler room, particularly through the ven-
tilation air apertures, by fitting the vents with grilles.
–
Maintain clearances between the boiler and flammable materials in accordance
with local regulations. Generally, maintain a minimum clearance of 40 cm. Never
store flammable materials or liquids in the vicinity of the boiler.
–
If there is a serious risk of flooding, disconnect the boiler in good time from its fuel
and power supply before water enters the room. Any general and burner compo-
nents or control equipment, which come into contact with water, must be replaced
before re-commissioning.
Boiler output (for
multi-boiler systems = total output)
< 50 kW
> 50 kW
Chapter 3.8, page 15
Specification
Ventilation air cross-section in cm
(unrestricted aperture)
2
min. 150 cm
2
2
min. 150 cm
plus 2 cm
for each kW
in excess of 50 kW
3
2
11
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