Subject to changes in line with technical progress.
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3420878
Product description
to the outdoor air. The electric air heater (14) ensures that further heat is supplied if necessary to adapt the outside air
temperature to the desired interior climate. The temperated outdoor air is then supplied to the space as supply air (D) via
the sound absorber (9) via the supply air fitting (3).
Heat recovery is used in the cooler seasons at low outside temperatures. At high outside temperatures during warm
seasons, the outdoor air should not be heated. The outdoor air is then conducted via the bypass damper (11) and the
heat recovery is thus bypassed, which in turn reduces pressure losses.
3.1.12 Cooling
If an additional cooling function is desired at high outside temperatures, the following measure can be taken:
The night cooling function can be activated on the compact air handling unit control. At sufficiently cool night tempera
-
tures, the unit can cool down the room slightly with the outdoor air.
3.1.13 Combination exterior wall diffuser
Ideally, the air exchange system is provided via an optional and recommended combination exterior wall diffuser from
AL-KO THERM GmbH for installation in a window replacement element. The unit is intended for connecting the outdoor
air and the exhaust air piping to the compact air handling unit.
2
4
3
5
6
5
A
B
7
5
8
1
A
Inner side (interior)
4
Combination exterior wall diffuser
B
Outer side
5
6 mm bores for screw connection
1
Outdoor air intake
6
Outdoor air fitting
2
Exhaust air outlet
7
Exhaust air fitting
3
Sealing joint
8
Inside cover
The combination exterior wall diffuser (4) is fixed in a window sandwich element via the inside cover (8). The screw
connection (5) is implemented using 5.5 x 45 mm sheet metal screws. A statically supporting sandwich window element
provided with corresponding openings for the pipe sockets must be implemented on site. The window sandwich element
is installed instead of a window pane. Outdoor and exhaust air fittings are sealed after installation to form the sandwich
window element (3).
The piping is carried out on the inside (A) of the corresponding outdoor air fitting (6) and the exhaust air fitting (7). The
outdoor air is drawn in via the intake (1) located on the outside (B); the outgoing exhaust air passes into the open via
the exhaust air outlet (2). The outgoing exhaust air outlet is fitted on the inside with a locking plate which additionally
accelerates the exhaust air as it exits. This avoids uncontrolled recirculation.
