6 | Installation
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M1820921_en | Installation instructions Dual fuel boiler SP Dual compact
6.8 Connecting the discharge system
Once the discharge system has been assembled in accordance with the assembly
instructions enclosed, the suction and return air line needs to be connected to the boiler
and the external suction module connected as well.
6.8.1 Installing the external suction module
The pellets are loaded using an external suction module. The suction module is installed
in the return-air line between the boiler and the suction point.
The following points should be noted for assembly:
▪ The position in the return air line can be chosen freely.
When using an optional PST pellet dust extractor, it is recommended that the suction
module be installed in the return air line between the pellet dust extractor and the
store to protect the turbine from pellet dust
▪ Before assembly, check whether the supplied assembly material is suitable and, if
required, needs to be replaced by suitable material for the base.
▪ No specific installation position is required for the suction turbine to operate smoothly.
Preferably, the suction module should be mounted so that existing openings in the
housing are not on the upper side and the suction turbine is protected against external
influences.
▪ To prevent interference with moving parts, the electrical connection and the setup of
the external suction module should be carried out only after connecting the hose lines.
Depending on the boiler type, two different sized suction modules are used. The
installation itself is the same for both sizes.
Ø 12 mm
Ø 12 mm
r
Unscrew the screws on the side of the suction module and remove the cover hood
r
Install the bottom panel including the supplied dowels and screws at any desired
position in the return air line
Ä
If the suction module is positioned at a maximum distance of 2 m to the boiler, the
power supply line can be plugged in as is. When distances are greater the power
supply line must be lengthened accordingly on-site
