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10 Installation instructions
• Observe the distances to other façade compon-
ents to avoid sound bridges to the building
structure. If necessary, use decoupling ele-
ments.
10 Installation instructions
• Do not commission a damaged fan. Repair
work may only be undertaken by trained spe-
cialists.
• Note the air flow and rotational direction accord-
ing to the arrows on the sticker → Unit over-
view.
• For the connection to the duct, use a flexible
coupling that matches the nominal fan size.
• Mount the fan securely. Use screws of a suit-
able diameter at all intended fixing points and
tighten to the correct torque. Mounting material
that is sufficiently dimensioned and suitable for
the surface is to be provided by the customer.
• Use sufficiently dimensioned vibration dampers.
More information is available on request.
The impeller is balanced in accordance with
ISO 14694 and ISO 1940-1. The vibration level
of fans is checked ex factory in accordance
with ISO 14694. The vibration level must be
checked again at the installation site in accord-
ance with ISO 14694 (vibration values accord-
ing to fan category and prescribed limit val-
ues).
• Before installation, check the application cat-
egory of the fans and the vibration limits for on-
site tests, in particular for the start-up, alarm
and stop operating statuses. Run a vibration
check and check the vibration values after com-
missioning (ISO 14694, BV-3, Veff. max.
4.5 mm/sec.). If required, install components for
avoiding vibration.
• Install the command equipment needed for
starting, stopping, emergency stops or resetting
after an emergency stop. Undertake installa-
tions in accordance with the planning docu-
ments and relevant regulations (EN 60204-1,
EN 14118, EN 14119, EN 14120).
• An earth connection is mandatory for DAR fans
used in outdoor areas. Route an earth con-
ductor to the installation site for the earth con-
nection (IEC 60364-5-54).
• Install a function monitor with alarm function to
warn persons in case of malfunctions/unit fail-
ure and to avoid damage to property.
18
11 Installation
11.1 Installation in ducts
CAUTION: Risk of cuts from metal housing plates
with sharp edges. Use personal protective equip-
ment (cut-resistant gloves) for installation work.
NOTICE: Risks of leakages if unit is not sealed
tightly enough. Screw the fan firmly to the duct
system at all flange holes. Fit suitable insulation,
sound-absorbing and installation materials.
If necessary, install additional accessories,
e.g., a GVI housing extension, an ADI suction
nozzle, RSI duct silencer, RSKI duct silencer
with baffle or GPI vibration damper.
1. For wall/ceiling attachment, fit FUI mounting
feet.
2. If necessary, install a GFI counter flange or
GSI counter socket on the two ducts.
3. Transport the fan to the installation site →
chapter .
Recommendation: Attach suitable chains/
ropes/lifting gear all around the housing and
carefully transport the fan to the installation
site using a crane, for example. NOTICE: The
fan must not be deformed/warped during
transport as this can lead to imbalance of the
impeller. Observe the details in Transport,
storage [} 17] and the safety instructions sup-
plement.
4. Screw the DAR fan tightly to the duct system
using the ELI flexible couplings. Screw all
flange holes. Observe the tightening torques.
Ensure seal integrity.
5. With a free inlet, also fit an SGCI or SGRI pro-
tective grille as protection against accidental
contact and drawing in.
6. Fit suitable insulation and sound-deadening
material.
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