Airflow Duplexvent Flexi DV 2600 Manuale di installazione, uso e manutenzione - Pagina 5
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4 .
D e s c r i p t i o n
4.1 General
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DUPLEXVENT FLEXI series ventilation units with heat recovery are compact appliances containing in a single cabinet two
independently powered fans with flexible mounted motors, a highly efficient heat recovery exchanger assembled from thin-walled
plastic boards for the recovery of heat / cool, a by-pass damper, slide-out filters and drainage trays, and depending on
accessories selected an external heater, chiller, shut-off dampers, flexible flanges and a control system.
4.2 Intended use
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DUPLEXVENT FLEXI series ventilation units with heat recovery are intended for comfort ventilation and possibly hot-air heating
and cooling of flats, houses, small plants, workshops, schools, restaurants, cooking facilities and industrial halls with a basic
environment. If the appliance is used for different purposes or is not operated in compliance with instructions contained in the
operation and maintenance manual, the manufacturer is not liable for resulting damages.
5 .
I n s t a l l a t i o n
5.1 Safety instructions
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During installation make sure no damage or deformation is caused to the case of the appliance (e.g. as a result of handling
operations).
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After setting the appliance in place check it for stability and secure it in this position.
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During handling and installation observe all rules of safe work (including work at heights and work with suspended loads) and
use appropriate work and safety equipment.
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Lifting and binding equipment should only be operated by trained personnel.
5.2 Hygienic instructions for the appliance as per VDI 6022
If installation is interrupted or heavy dusting occurs, cover all openings of the appliance in such a way so as to ensure that
surfaces in contact with outside elements remain protected against the weather and stay clean and dry.
Do not unpack and install air filters until immediately before putting the appliance into operation. This prevents their
contamination.
An HVAC duct including other accessories with its own independent operation controls must be connected to the fresh-air
suction side of the appliance in front of the inlet to the appliance to ensure compliance with the VDI 6022 standard and the
appropriate treatment of extract air to eliminate the dampening of the air filter. If the air duct is not fitted or does not contain such
accessories, the appliance must be put out of operation in periods when the dampening of the air filter might occur (thick fog,
flying snow etc.).
5.3 Identification of ports, connecting the HVAC duct
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The versatile design of DUPLEXVENT FLEXI DV1600 and DV2600 allows adjusting the direction of air flow through the
appliance. Identify and label individual ports using the pictures below (labels are included). Begin by identifying port e1 (ODA –
outdoor air inlet) continue towards the fan on the same (shorter) side of the unit with port i2 (exhaust air outlet – EHA). Next is
port e2 (SUP – supply air outlet) with the fan on the opposite side of the unit. The last remaining port is port i1 (inlet extract air –
ETA). Note: Depending on the specific location of the unit proceed clockwise or anticlockwise.
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Connect the HVAC duct following the design documentation.
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To prevent injuries caused by the fan impeller, an HVAC duct at least 2 metres long must always be connected to the unit. The
duct must be fastened in such a way that it cannot be removed without tools.
ATTENTION: For the unit to reach performance levels stated by the manufacturer a straight duct at least 1 metre long must be
connected to all outlet ports. The duct connected to inlet ports must be arranged in such a way so as to allow a uniform flow rate
across the entire section of inlet ports.
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