3
x
Set-up and Installation
13
FA ROTEX A1 BO - 10/2007
3.2.1 Operation independent of ambient air
Set-up version 1
The oil condensing boiler is connected to the LAS connection line
kit C
or
kit D
at 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 distance between flue gas exit and roof ridge:
40 cm
.
Set-up version 4
The oil condensing boiler is connected to the external wall system
kit G
using the LAS connection pipe
kit C
or
kit D
.
– The combustible air supply from the outside runs through the ring-shaped gap in the dual tube, through the outer wall (suction
from below).
– The flue gas discharge to the outside runs through a concentric 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
The oil condensing boiler is located directly under the roof. Connection with
kit F
.
– The combustible air supply from the outside runs through the outer ring-shaped gap of the dual tube and the flue gas discharge
to the outside runs through the inner tube.
– Minimum distance between flue gas exit and roof surface:
40 cm
.
– Minimum height of the flue gas pipe:
2 m
.
Set-up version 6
The oil condensing boiler is not located directly under 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 tube (as in set-up version 5).
– In the area of the roof truss, the dual tube for the combustible air supply and the flue gas pipe must be laid through
a protective pipe with sufficient fire resistance or be structurally separated from the roof truss.
3.2.2 Operation partially independent of ambient air
If the flue gas pipe is too high (see tab. 3-3, page 17), it may be advisable to suction the supply air through a separate air supply
line with a lower resistance.
• Pull off the air supply hose at the air supply connecting manifold of the boiler body and connect the separate air supply line.
Set-up version 3
– The combustible air supply from the outside runs through a separate air supply line through the external wall.
– The flue gas discharge to the outside runs through the chimney or through an installation shaft (as in set-up version 1).
Set-up version 8
The oil condensing boiler is connected to a ceramic chimney by means of
kit A
or
kit B
.
– The combustible air supply from the outside runs through a separate air supply line through the external wall.
– The ceramic chimney for the flue gas discharge should be humidity-resistant, as specified in DIN 18160 and it must have the
corresponding approval (suitability for overpressure operation).
– If the ceramic chimney does not have an approval for the flue gas pipe for overpressure operation, it must be possible to
prove, through a flue gas calculation, that there is a vacuum in the shaft when the flue gas enters.
If the wall opening is less than one metre above the ground, ROTEX recommends sending the combustible air
through a separate air supply pipe (
PPW-ZR,
15 50 79.00 66
) at a height of approx. 2 m.
