4 x Set-up and installation
ROTEX GCU compact -
15
4.2.1 Operation independent of ambient air
Set-up version 1
The ROTEX GCU compact with the SET GCU1 and the
concentric LAS connection line SET H or SET K is connected to
the chimney or an installation shaft.
– The combustible air supply from the outside runs through the
chimney or through an
installation shaft.
– The flue gas discharge using a flue gas pipe to the outside
runs through the same shaft as the air supply.
– Minimum vertical distance between flue gas exit and roof
ridge: 40 cm.
Set-up version 2
The ROTEX GCU compact is placed directly below the roof.
Connection with SET GCU1 und SET L.
– The combustible air supply and flue gas discharge run
through a concentric dual pipe.
– The combustible air supply from the outside runs through the
outer ring-shaped gap of
the dual tube and the flue gas dis-
charge to the outside runs through the inner tube.
– Minimum vertical distance between flue gas exit and roof sur-
face: 40 cm.
– Minimum height of the flue gas pipe: 2m.
Set-up version 3
The ROTEX GCU compact is not placed directly below the roof.
The dual tube for the combustible air supply and flue gas pipe
runs through the roof truss.
– The combustible air supply and the flue gas discharge run
through a
concentric dual pipe (as in Installation version 2).
– In the area of the roof truss, the dual pipe for the co
mbustible
air supply and the flue gas duct must be laid through a protec-
tive pipe with sufficient fire resistance or be
structurally sepa-
rated from the roof truss.
Set-up version 4
The ROTEX GCU compact with the SET GCU1 and the LAS
connection line SET H or SET K is connected to the exterior wall
system SET G.
– The combustible air supply from the outside runs through the
ring-shaped gap in
the dual pipe, through the outer wall (suc-
tion from below).
– The flue gas discharge to the outside runs through a
concen-
tric pipe, through the outer wall and then up to at least 40 cm
over the roof surface. In the external area, the outer air gap
serves as heat insulation for the flue gas pipe.
Set-up version 5
If, for constructional or legal/regulatory reasons, the shaft used
for the flue gas routing is not suited for sending the combustion
air through it at the same time, the combustion air must be sent
through a separate line.
If the flue gas connection line to the shaft is double-walled and is
surrounded by the combustion ai
r, there are no additional venti-
lation requirements on the installation room.
– Combustion air inlet is routed from the outside via the ade-
quately sealed inlet air which is connected directly to the con-
centric exterior pipe of the connection line. The air inlet line
should be sized so that the suctio
n resistance at nominal
power is less than 50 Pa.
– The connection line between the ROTEX GCU compact and
the installation shaf
t is completely concentric and surrounded
by combustion air.
With equipment erection in residential rooms, only one
of
the set up
variants 1 to 4 is permissible.
If the wall feed through has a height of less than one
meter above the
plot, ROTEX recommends sending the
combustible air through a separate air supply pipe
(mounting height: about 2 m). W8 ZR, 15 50 79.00
66 or W11 ZR, 15 50 77.00 30
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