4
Set-up and installation
Installation and operating instructions
12
Daikin/ROTEX A2 F
Oil condensing boiler A2 F
008.1546499_02 – 04/2018 – EN
INFORMATION
Use of the A2 F in ambient air-independent operation with
a concentric flue gas/air supply line is recommended by us.
If possible, choose this installation version!
In partial ambient air-independent operation (separate flue
gas/air supply lines with a single-walled connecting pipe)
and ambient air-dependent operation the installation room
must have a ventilation opening of at least
150 cm
2
to the
outside.
As such, the installation room will not be assigned the
heated building envelope under the Energy Conservation
Ordinance (EnEV), which downgrades the energy rating of
the building. This reduces the overall energy efficiency of
the building according to European Directive 2010/31/EU:
EPBD.
The following descriptions of the different set-ups includes
information regarding the possible classification of the
devices based on the type of flue gas routing (equipment
type) in accordance with EN 15035 and CEN/TR 1749.
Chap. 4.2.4
and
Chap. 4.5
must also be observed in this
regard.
The described SETs are accompanied by separate as-
sembly instructions.
The SETs mentioned below are recommendations for the
appropriate combination of the required individual compon-
ents for the typical installation variants.
4.2.1
Room-air independent operation
INFORMATION
When devices are installed in residential rooms only one of
the installation versions 1 to 4 is permissible.
Installation version 1
The A2 F is connected to the chimney or an installation shaft with
the concentric
Set K
LAS connection line.
▪ The combustible air supply from the outside runs through the
chimney or through an installation shaft.
▪ The flue gas discharge to the outside runs through the same shaft
as the air supply.
▪ Minimum vertical distance between flue gas exit and roof ridge:
40 cm
.
▪ Device type C
93x
Installation version 2
The A2 F is placed directly below the roof. Connection with
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 pipe, and the flue gas discharge
to the outside runs through the inner tube.
▪ Minimum vertical distance between flue gas exit and roof surface:
40 cm
.
▪ Minimum height of the flue gas pipe:
2 m
.
▪ Device type C
33x
Installation version 3
The A2 F is not placed directly below the roof. The dual pipe for the
combustible air supply and flue gas duct 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 combustible air
supply and the flue gas duct must be laid through a protective pipe
with sufficient fire resistance or be structurally separated from the
roof truss.
▪ Device type C
33x
Installation version 4
The A2 F is connected with the
SET K
LAS connection line to the
SET G
outer wall system.
▪ The combustible air supply from the outside runs through the ring-
shaped gap in the dual pipe, 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.
▪ Device type C
53x
If the wall feed through is at a height of less than one
meter above the ground, we recommend routing the com-
bustion air through a separate air supply pipe (mounting
height: approx. 2 m).
W8 ZR
or
W11 ZR
Installation version 5
If, for constructional or legal/regulatory reasons, the shaft used for
the flue gas routing is not suited for also routing the combustion air
at the same time, the combustion air must be routed through a sep-
arate line.
If the flue gas connection line to the shaft is double-walled and is
surrounded by the combustion air, there are no additional ventilation
requirements on the installation room.
▪ Combustion air supply is routed from the outside via the ad-
equately sealed supply line which is connected directly to the con-
centric exterior pipe of the connection line. The supply line should
be sized so that the
suction resistance at nominal output is
less than 50 Pa
.
▪ The connection line between the A2 F and the installation shaft is
completely concentric and surrounded by combustion air.
▪ Device type C
53x
, C
83x
INFORMATION
The A2 F is suitable for installation and operation within
garages. Requirements:
▪ Ambient air-independent operation,
▪ A durable operating manual placed in a very visible
place near the device,
▪ The construction must include a protective device
against mechanical damage (vehicle!) for the entire sys-
tem (e.g. bracket or deflector).
▪ Permanently frost-protected.
Installation variant 7 (not shown)
If permitted by local regulations, the A2 F can be connected to
SET W2
to the horizontal flue gas outlet.
▪ The combustible air supply and flue gas discharge run through a
concentric dual pipe.
▪ The combustible air supply runs from the outside through the
outer ring-shaped gap of the dual pipe (supply air inlet via the in-
take grille of the wall feed through) and the flue gas discharge to
the outside runs through the inner tube.
▪ Minimum height of the flue gas pipe: 2 m
▪ Observe local regulations regarding minimum distances of win-
dows or other building openings.
▪ Device type C
13x
4.2.2
Partial ambient air-independent mode
Alternative to installation variant 5
The A2 F is operated with separately routed supply air/flue gas lines
(2-pipe system).
