4
Set-up and installation
Installation and operating instructions
15
Daikin/ROTEX A2 F
Oil condensing boiler A2 F
008.1546499_02 – 04/2018 – EN
4.4
Installing the oil condensing boiler
4.4.1
Selecting the installation site
The installation site of the A2 F must meet the minimum require-
ments below (see also
Chap. 1.2.3
).
Installation height
▪ The bottom edge of the condensate connection on the device
must be higher than the drain height of the condensate drain
hose, otherwise condensation can accumulate in the drain. Install
a pedestal if necessary.
▪ Small unevennesses of the installation surface can be com-
pensated using the height-adjustable feet (see
Chap. 4.4.2
).
Installation area
▪ The base must be level and smooth and have a sufficient
ground
load-bearing capacity
of
500 kg/m²
plus safety factor. Install a
pedestal if necessary.
▪ Observe the installation dimensions (see
Chap. 4.1
).
Installation room
▪ There are no special conditions for ventilation of the installation
room for ambient air-independent operations (using a concentric
air/flue gas system).
▪ In partial ambient air-independent and ambient-dependent mode,
the installation room must have a ventilation opening of at least
150 cm
2
to the outside. If the flue gas line is routed to the outside
through an installation shaft, it must be rear-ventilated (see
Chap.
4.2.2
).
▪ For partial ambient air-independent and for ambient air-dependent
mode, the installation room must be free from aggressive vapours
(e.g. hair spray, perchloroethylene, carbon tetrachloride), heavy
dust formation and high atmospheric humidity (e.g. laundry).
▪
Outdoor installation
is not permissible.
▪ Installation in an explosion-risk environment is not permissible.
▪ The electronic controller may never be exposed to the effects of
the weather.
▪ The A2 F must be
protected from frost
.
INFORMATION: HEATING OIL STORAGE IN THE IN-
STALLATION ROOM
The construction specifications allow, as a rule, hot oil stor-
age of up to 5000 litres (according to the firing ordinance of
the country) if the building is a Building Class 1 construc-
tion and the installation room is not a room were people
live or work.
Installation in the attic
If the A2 F is installed in the attic and the oil is stored in the rooms
below it, the oil pump of the burner is generally not sufficient. If the
vacuum on the suction side exceeds the value 0.4 bar, the oil must
be supplied to the burner through a separate pump. We strongly re-
commend using a
suction unit
.
The
minimum height of the flue gas conduit
must be 2 m in order
to avoid malfunction at start or during operation of the burner.
WARNING
If using a pressure aggregate, oil could escape if there is a
failure. Escaping oil can cause serious damage to the en-
vironment.
▪ Install the boiler on a water-proof tray and secure by a
float switch (connection via additional plug strip).
▪ Use only a metallic filter cup (never Plexiglas).
Installation in garages
Provided local regulations do not generally prohibit the installation of
boilers in garages, the A2 F is completely 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 mech-
anical damage (vehicle!) for the entire system (e.g. bracket or de-
flector).
▪ Permanently frost-protected.
Surface temperatures, minimum distance
Fig. 4-4
Minimum distances for installation
Item
Designation
R
H
Minimum room height: 1.80 m
a
Minimum lateral wall distance: 0.50 m
Tab. 4-4
Minimum distance dimensions
▪ In ambient air-independent mode with rated power, the design
does not allow temperatures > 70 °C on any component outside
the device panels. Therefore, no minimum distance is specified for
components made with flammable materials.
▪ A minimum distance of 50 mm between the flue gas line and flam-
mable components should be maintained in a partial ambient air-
independent and ambient air-dependent operation (separate flue
gas/air supply pipes).
▪ Do not store or use easily inflammable and highly combustible
materials in the immediate vicinity of the A2 F (minimum distance
1 m).
▪ When installing the device as described in
Fig. 4-4
, we recom-
mend maintaining the minimum distances from walls and ceilings
in order to perform maintenance and repair work without excess-
ive installation effort.
▪ When installing in a niche, the A2 F can be placed on the left side,
directly against the niche wall, if the area in front of the A2 F is
freely accessible.
