Viadrus NAOS K4, Руководство пользователя

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Servicing
38
11 Flue Gas Ducting
According to the means of flue gas removal and combustion air inlet the boiler version is classified as C. this means a close appliance that takes
the combustion air from the outside space or from a joint shaft and from which the flue gases are removed into the outside space or to a joint
shaft. The shaft is represented by a structural part of the building, e.g., a chimney, a duct, etc. The combustion area and the flue gas ducts of
the appliance are separated in a gas-tight way from the area in which the appliance is located.
In the standard version the boiler is supplied with an air flange. The boiler flue gas exhaust is not a part of the boiler delivery. It is necessary to
maintain a 3 % inclination to the boiler. The pressure loss for the flue gas exhaust shall not exceed 150 Pa. The total pressure loss is the sum
total of individual losses of the parts described in this chapter.
The boiler shall only be installed together with wind protective equipment which meets the requirements of EN 1856-1 (See Annex N). For
removal of flue gases through the roof it is necessary to use a concentric chimney piece.
The boiler shall be installed together with the necessary accessories (pipeline for the combustion air supply and flue gas exhaust).
The approved and recommended flue ducting versions for the VIADRUS K4 boiler made by ALMEVA are as follows:
•
Star D80mm
•
Flex D80 mm
•
LIK 60/100 mm
•
LIK 80/125 mm
The recommended flue ducting can be ordered together with the boiler.
The boiler in version C is specified in more detail by a two digit
number:
-
The first digit in the index refers to the possible boiler installation
with regard to the way of combustion air inlet and flue gas
removal,
- The second digit in the index refers to the application and
positioning of the built-in fan in the boiler. VIADRUS K4 is a
boiler with a fan that is built-in before the combustion
chamber/heat exchanger (boiler body) and is marked with „3“,
the second digit in the index
Version C
1
A boiler in version C whose ducting is connected to the protection
inlet installed horizontally either on the outside peripheral wall or on
the roof of the building. Terminal outlets of these ducts are either
concentric or they are located so close one to the other that they are
subject to the same climatic conditions.
Outlet openings of the terminated separate ducts for supply of the
combustion air and for removal of flue gases shall be located inside a
square with a side of 50 cm.
The wind protection equipment can be placed on the wall and/or the
roof depending on the installation.
Version C
3
A boiler in version C whose ducting is connected to the protection
inlet installed vertically. Terminal outlets of these ducts are either
concentric or they are located so close one to the other that they are
subject to the same climatic conditions.
Outlet openings of the terminated separate ducts for supply of the
combustion air and for removal of flue gases shall be located inside a
square with a side of 50 cm and the distance between the planes of
two openings shall be lower than 50 cm.
Fig. № . 24 Flue gas removal and air supply connection
options
Version C
4
A boiler in version C whose ducting or adapter is connected to the joint shaft. Terminal outlets of these ducts are either concentric or they are
located so close one to the other that they are subject to the same climatic conditions.
The boiler shall be installed with the shortest possible length of the ducts for supply of the combustion air and for removal of flue gases. By its
suction effect used for ducting for removal of flue gases the boiler shall not create negative pressure of 50 Pa. This connection can be
implemented using the systems made by ALMEVA.
Version C
5
The wind protection equipment on ducts for supply of the combustion air and for removal of flue gases shall not be placed on the opposite walls
of building.
Version C
8
A boiler in version C whose ducting or adapter is connected on the air supply side to the protection inlet and on the flue gas removal side to a
separate or joint chimney.
The chimney shall be equipped with a special lining designed for the condensing boilers and a condensate outlet from the chimney.
For the VIADRUS K4 boiler it is possible to use a plastic lining with temperature resistance 120 °C made e.g. by ALMEVA.
The boiler shall only be installed together with wind protective equipment which meets the requirements of EN 1856-1 (See Annex N).
In case of using of the fuming system consisted of a small vertical chimney, going through the cold roof, it is necessary to buy
additionally LIK condensate diverter (60/100 - LPKOK5, code for ordering 27 045 or 80/125 - LPKOK8, code for ordering 27 046), which
collects condensed water incurred on the surface of the small vertical chimney.
Design of flue gas ducting and air supply ducts, including their lengths, shall be made by the designer in the technical documentation
on the basis of design documentation provided by VIADRUS.
Note: The quantity of the components for the individual version types depends on the placement of the boiler.