Atmos A85, Operation And Maintenance Manual

Page: 13 / 66

Operation and Maintenance Manual - EN
EN
www.atmos.cz
EN-13
7. Flue gas duct of the boiler
The flue gas duct from the boiler must lead to the
chimney vent. If the boiler cannot be connected directly to
the chimney vent, the corresponding flue gas duct adapter
must be as short as possible with regard to the particular
conditions, but not longer than 1 m , without additional
heating surface and it must rise towards the chimney . Flue
gas ducts must be mechanically strong and leak-proof for
flue gas and cleanable inside. Flue gas ducts must not lead
through other owners‘ residential or commercial units. The
inner cross-section of the flue gas duct must not be larger
than the inner cross-section of the smoke uptake and must
not get narrower towards the chimney. The use of smoke
elbows is not suitable. Designs of passages of flue gas ducts
through structures of flammable materials are defined in
Annexes 2 and 3 of ČSN 061008 and are mainly suitable for
mobile units, wooden huts, etc.
1. Flue gas thermometer
2. Cleaning opening
Draught regulator (throttling flap)
INFO - In case of too strong draught of the chimney install a draught regulator (limiter) /3/
or a throttling flap in the flue gas duct, see the ATMOS price list.
8. Fire protection within the installation and use of heat appliances
Extract from ČSN 061008 - Fire safety of local appliances and sources of heat
Safe distances
On installation of an appliance the safe distance from building materials must be maintained, at
least 200 mm. This distance is valid for boilers and flue gas ducts located near flammable materials
of the B, C1 and C2 flammability class (the flammability class is specified in tab. no. 1). The safety
distance (200 mm) must be doubled if boilers and flue gas ducts are located near flammable materials
of the C3 class (see tab. no.1). The safety distance must be doubled if the flammability class of
flammable material is not evidenced. The safety distance may be reduced to a half (100 mm) if you
use a non-flammable heat insulating panel (asbestos panel) with the thickness of at least 5 mm,
located 25 mm from the protected flammable material (flammable insulation). A shielding panel or
protective screen (on the protected object) must exceed the outline of the boilers (incl. flue gas ducts)
at each side by at least 150 mm and the top surface of the boiler by at least 300 mm. A shielding panel
or protective screen must also be used to protect fixtures of flammable materials if the safe distance
cannot be maintained (e.g. in mobile units, huts, etc. - more details in ČSN 061008). The safety
Boiler Chimney