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5.5.1 Ventilation unit housing emissions
It is not recommended that you install the
ventilation unit in the living area, kitchen or
bathroom as the housing noise emissions
exceed 35 dB(A).
Recommendation:
Install the ventilation unit
in a room that has a sufficient level of sound
insulation from the remaining living areas.
5.5.2 Designing the air channels
Observe the prescribed sound
pressure level of < 25 dB(A) in liv-
ing areas and < 30 dB(A) in func-
tional areas. Silencers must be
installed in the ventilation chan-
nels.
Recommendation:
Install telephony sound
absorbers to reduce the sound transfer be-
tween the individual rooms.
5.6 Electrical connection
The WRG 300 / 400 EC must be installed in
line with local requirements. The advice given
in this manual must be observed
The unit may only be connected
to the mains power after the sup-
ply and exhaust air channels
have been connected.
Only qualified electricians are permitted to
make the electrical connections, in compli-
ance with the wiring diagram below. A fixed
cabling is prescribed for the mains connec-
tion, in a distribution box, for example.
Caution: Risk of an electric
shock. Malpractices run the risk
of death
.
Always switch off the mains fuse in
the fuse box before starting work on
the electrical installation and post a
warning sign to prevent this being
switched back on by mistake.
5.6.1 Connecting the room air control
The room air control should be connected to
cable (A) on the top of the unit.
The power supply phase must be
connected to terminal 5 on the room
air control so that the unit can be
powered
off.
