Hoval BioLyt 100, Техническая информация Инструкции по установке

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6. Installation
6.1 Water connections
6.1.1 General provisions
The BioLyt wood pellet boiler (50-160) is designed and
approved for use as a heat generator for domestic hot
water heating systems according to EN 12828 with per-
missible flow temperatures of up to 80 °C.
6.1.2 Safety equipment
The safety equipment (safety valve, etc.) must be in ac-
cordance with EN 12828. The pressure expansion tank
must be appropriate for the heating system, water volume
and hydrostatic pressure.
6.1.3 Return maintenance
A mixing valve must be installed to ensure that a mini-
mum return temperature of 45 °C is maintained. Lower
operating temperatures have a detrimental effect on the
service life of solid fuel fired boilers due to the conden -
sation on the heating surfaces of the water vapour cont-
ained in the flue gas.
This condensate contains a variety of aggressive compo-
nents which promote corrosion and soot formation if this
condition occurs frequently.
This can be avoided by maintaining a flow temperature
of above 60 °C during continuous operation and ensu-
ring that the return temperature never drops below 45 °C.
This eliminates the risk of the temperature falling below
the dewpoint on the return side.
6.1.4 Insulation of the heat distribution system
When performing initial installation or replacement of or
major repairs on heat distribution systems and hot water
pipes including fittings, technical measures must be im -
plemented to limit heat transfer (Table 1).
6.1.5 Additional installation information
Automatic filling of the pellet container
When deciding on the placement of the BioLyt boiler, you
must take into consideration the space requirements for
the automatic conveying of pellets from the correspon-
ding storage room. The pipelines must not be in the way
here.
Buffer storage tank
The installation of an energy storage is generally recom-
mended. For over-dimensioned boilers (≥ 20 %) or in tho -
se cases where parts of the heat supply system are fre-
quently disconnected, a buffer storage tank is mandatory.
In many cases, a buffer storage tank is also necessary
for water heating or integration of a solar energy system.
Recommended capacity: 10 - 30 litres/kW boiler output.
Detailed dimensioning of the system is necessary.
Combustion air supply
An adequate combustion air supply is a prerequisite
for safe and economical operation. It is very important
to ensure that the combustion air is clean and free from
halogen compounds. These are present, for example,
in spray cans, varnishes, glues, solvents and cleansing
agents (see chapter 2.1).
Flue gas system
A moisture-resistant chimney is required. Minimum
draughting requirement 5 Pa. (see 6.2, page 44)
Damper and explosion damper
A combined draught-explosion damper between boiler
and flue is mandatory (see chapter 6.2).
Table 1
Pipeline and fitting types
Minimum insulation thickness based on a heat conductivity of 0.035 W/
(mK)
1
Pipes/ fittings in non-air-conditioned rooms 2/3 of the pipe diameter, but at the most 100 mm
For pipes/fittings in wall and ceiling openings, in areas where pipelines
intersect, in central network distributors
1/3 of the pipe diameter, but at the most 50 mm
Pipelines/ fittings in air-conditioned rooms 1/3 of the pipe diameter, but at the most 50 mm
Pipes in the floor structure
6 mm (does not apply if pipes are laid in the impact sound insulation in
the case of ceilings to air-conditioned rooms)
Transmission lines No requirements
1
At 10 °C average temperature; in the case of materials with a heat conductivity other than 0.035 W/(mK), the minimum insulation thicknesses must
be calculated using the methods contained in the technical regulations.
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InSTALLATIOn