8
Installation
8
.1 Prerequisites for installation of the unit / interior installation
The LG ventilation unit must be installed in accordance with the general and locally applicable safety and
installation regulations and to the specifications in this Manual. Erection and installation work may only be carried
out by authorised competent staff.
Place of interior installation:
The ventilation unit may only be installed in a frost-free room, e.g. in a cellar or
loft, with ambient temperatures ranging b5°C to +40°C. Accumulating condensate must be discharged
frost-free and safely via a gradient and with an effective trap (siphon) to block odours.
Place of weatherproof installation:
Units integrated in the roof and weatherproof units, also side by side,
must be installed on a base and above snow height. Accumulating condensate must be discharged frost-free
and safely via a gradient and with an effective trap (siphon) to block odours.
The installation position for the unit must be selected to allow sufficient space for air ducts, electrical
connections, condensate connection and for maintenance and inspection. Leave at
least 1 m
space in front
of the unit to allow for operation and maintenance.
The ventilation unit must be set up on an even and sufficiently firm base.
Connection facilities:
The following connection facilities in accordance with the unit card must be available in
the installation area:
Air duct connections for supply, extract, outdoor and exhaust air
Electrical mains connection in accordance with the unit card
Condensate drainage line with an effective trap to block odours
All on-site work (drainage, floor structure etc.) must be completed
before installing
the ventilation unit. The
ventilation unit will be firmly in position once the air ducts have been connected and cannot be moved. The air
ducts must be sufficiently insulated to conserve energy and to prevent condensation. No condensate must be
allowed to form on the air ducts and roof cladding.
To ensure proper and functional plant operation, suitable thermal and sound insulation and installation
materials as per the planning documentation and technical data, such as adequately sized acoustic absorbers,
supply air and extract air valves, overflow openings etc. should be ensured.
All equipment connectors should in principle be fitted with sound absorbers to ensure appropriate acoustic
damping. Air duct feed-throughs through walls or ceilings must be isolated from structural vibrations.
Protection against dirt:
To protect the plant from coarse soling such as foliage, leaves or insects, a fine wire
mesh grating must be provided as a pre-filter directly at the central intake of outdoor air. The protective grating
must be checked and cleaned at regular intervals, if necessary, especially in spring and autumn. Inspection
openings should be provided in the air duct system to facilitate cleaning and maintenance if necessary.
To prevent condensation inside the unit, the ventilation unit must be commissioned immediately after proper
installation; failing this, the connections for supply and extract air must be sealed airtight until commissioned.
Condensation may permanently damage the ventilation unit, especially the integrated electronic controller. It
may, for instance, suffice to use an EPS disc and adhesive tape to seal the supply and extract air connections
airtight. Strictly ensure that condensation inside the unit will be reliably prevented should the unit not run for
extended periods, e.g. by installing airtight shut-off valves in the ducting system to prevent undesirable natural
circulation of air.
O P E R A T I N G A N D I N S T A L L A T I O N I N S T R U C T I O N S L G
7 5 0 - L G 6 0 0 0
P A G E
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