SOLARFOCUS pellet top touch 35, Installation Manual

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Annex
22 Installation manual pellet
top
The impact protection mat must be large enough that the entire stream of pellets strikes it. Normally, it must be
attached so that it swings freely. (Exception: very small storage areas). The impact protection mat must be long
enough that the pellets are not blown underneath it
and do not push it away. Pieces of carpet or softer plastic/rubber are unsuitable for this purpose and can lead to
major damage.
Piping and electrical installations in the storage area
Open electrical wiring, fuse boxes and light sources are prohibited in the
pellet storage area. Any installations which cannot be avoided must be of
explosion-protected (air- and moisture-tight) design. Due to the danger of
condensation and burst pipes, there should if possible be no water pipes
in the storage area. If there are already cold water pipes in the room, and
if it would be too expensive to remove them, they must be insulated to
prevent the formation of condensation. Any pipelines in the trajectory of
the pellets must be protected appropriately against the flow of pellets
(e.g. with deflector plates, wooden panelling).
Protection against humidity and moisture
Pellet are highly hygroscopic. This means that they swell strongly and become unus-
able if they come into contact with water or damp walls. For this reason, the pellet
storage area must remain dry throughout the year. If there is a danger of damp walls,
use pellet boxes or install appropriate protection against moisture (e.g. back-
ventilated wooden panelling on the walls).
Structural requirements and the required fire resistance classes
Walls and supporting parts must meet the structural requirements with regard to the weight load imposed by the
pellets (bulk weight 650 kg/m³). The perimeter walls and the storey ceiling must meet the requirements of the
respective fire resistance classes.
In Austria, fire resistance class EI90/REI90/F90 applies. Different rules apply in Germany, depending on the
province.
All transitions to the existing brickwork as well as the corners and passages are dust-tight.
The following wall thicknesses and materials have proved effective in practice:
Material Thickness / finish Fire resistance class
Building bricks a least 12 cm, plastered on both sides EI90/REI90/F90
Hollow block a least 17 cm, plastered on both sides EI90/REI90/F90
Concrete min. 10 cm EI90/REI90/F90
Wooden structure 12 cm beams with 62 cm spacing, with 3-layer panel facing on both sides
Warning on storage room door
Attach warning stickers.
Access to the storage area
The access route must be suitable for silo vehicles. As a rule, a width of
at least 3 m and a clearance height of >4 m is required.
If possible, the storage area should be directly behind an outer wall, as
the injection and suction pipes preferably should be routed into the
open air. It is also advisable to provide a 230V power socket in the out-
er wall in the direct vicinity of the fill couplings, for connection of the
pellet supplier's suction fan.
9.3 Chimney connection
The correct dimensioning of the chimney and the selection of the right chimney system are important precondi-
tions for correct functioning of the heating system. The chimney must route off the gases reliably at all times.
The chimney should be moisture-resistant, e.g. made from stainless steel. Adequate insulation of the chimney
must be provided.
Trajectory of the
pellets
Trajectory of the
pellets
Deflector
plate
Wiring and pipe-
lines to be pro-
tected
Wiring and pipe-
lines to be pro-
tected
Deflector
plate