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www.eta.co.at
No cables/pipes in the pellet store
Pellet store
Conversion to ventilated sealing cover
For filling nozzles and sealing caps available from
ETA, the interior of the sealing caps contain a cover for
sealing. If this cover is removed, air gets into the pellet
store via the sealing cover. Thus the sealing cover is
ventilated.
Fig. 13-5: Sealing cover
1
unventilated sealing cover (with cover mounted)
2
dismantled cover
3
ventilated sealing cover
If the filling nozzles are mounted inside the
building, they must be tight. The cover in sealing
cap may not be removed (see ÖNORM M 7137). This
prevents a possible escape of gases into the interior of
the building.
For unfavourable positioning of the filling nozzles
(for example, installation on the weather side of
the house), water can also penetrate into the pellet
store via the ventilated sealing cover. This is to be
avoided to prevent a swelling of the pellets.
Earthing the filling nozzles
Connect the filling nozzles to the earthing of the
house's electrical system with a 6 mm² earthing cable.
Extension of the filling pipes
The ETA filling nozzles are made of aluminium piping
(100 x 2 mm) and can be extended if needed. If the
tank truck can approach close to the filling nozzle so
that its filling distance (30 m) is not already exceeded
outside the building, then filling lines up to 20 m in
length pose no problem. Height differences of one
floor, or even two for short lines, can also be overcome
without problems.
Extension with aluminium piping only
•
Only aluminium piping may be used for the filling
system. Do not use plastic piping (danger due to
electrostatic charge build-up).
•
The filling system must be earthed against electro-
static charges.
•
The filling system must be smooth on the inside
throughout its length; do not use spiral ventilation
ducting.
•
If bends are used, their radius of curvature should
be at least five times the pipe's radius. As an alter-
native, you can make 90° bends by using two 45°
bends with a straight piece between them.
•
The filling system should not end in a bend. To
ensure that the pellets are blown out straight, a
straight length of pipe at least 50 cm long must
come after a bend.
13.5
No cables/pipes in the pellet store
No water pipes or electrical cables in the pellet
store
In the pellet store, there should be no water pipes or
electrical cables. Water from a broken pipe would
cause the pellets to swell up. Uninsulated electrical
parts could ignite a dust explosion.
Existing cold water pipes that can only be removed
with unreasonable effort must be insulated against
condensation to ensure that the pellets cannot be
damaged by dripping condensation.
Pipes and cables in the path of pellets being injected,
especially those on the ceiling, must be shielded.
Ensure that the pellets are gently deflected by a
protective plate.
Fig. 13-6: Protective plate for pipes/cables that cannot be
removed
1
Pipes/cables
2
Insulation for pipes
3
Protective plate
Содержание 13180 LP-D
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Страница 33: ...Buffer storage tank Connection between multiple buffer storage tanks 33 ...
Страница 55: ...Installation Network connection 55 ...
Страница 61: ...Electrical connections Overview of circuit boards 61 ...
Страница 65: ...Electrical connections Circuit board HA C5 65 ...
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