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2VV.
Creating innovative solutions for you and your business since 1995.
ver.1 31-05-21
6. INSTALLATION
6.2-2 Protective screen
In the event that some of the collars of the unit will not
be used for connecting ducts, it is necessary to fix the
opening with a screen for protection from touching the ro
-
tating parts of ventilator,
heater bars etc.
6.2 CONNECTING HVAC DUCTS
• The connected ductwork must have the same dimen
-
sions as the intake and exhaust openings of the unit.
Ducts of a smaller diameter may reduce the efficiency
of the unit and, in some cases, also its lifespan.
• Connect the intake and exhaust openings (rectangular/
circular opening) with flexible joints in order to reduce
vibrations.
All the connections to the ductwork must be sealed with
sealant or tape.
The minimum distance between bends in the ductwork or
adapters and the neck of the unit is 500 mm.
READ CAREFULLY!
6.2.-1 Flexible connection
Connect the ducts to the exhaust and the suppl collars
using flexible connections to stop the transfer of vibrati
-
ons it will allow easier removal of the unit from the installa
-
tion place when servicing.
Typ
DN
HRDF1-030
Ø160
HRDF1-050
Ø200
HRDF1-070
Ø250
6.2-3 INSTALLATION OF A FILTER BOX
IN THE DUCT
If unit is equiped with preheating, then it is necessary to
install in the outsdie air duct (ODA) a filter box of type
FLF-A or FLK-B. This will prevent air pollution and the
ingress of dirt on the electric heating element.
Fan /
Ventilator
Heat exchanger /
Wärmetauscher
Filter /
Filter
Regulation /
die Regulation
Condesate exhaust /
Kondensatausscheidung
Afterheater /
Nachheizeinrichtung /
DX / CO
By-pass flap /
By-pass Klappe
Preheater /
Vorwärmer
Operational diagram
Funktionsschema
Fan /
Ventilator
Heat exchanger /
Wärmetauscher
Filter /
Filter
Regulation /
die Regulation
Condesate exhaust /
Kondensatausscheidung
Afterheater /
Nachheizeinrichtung /
DX / CO
By-pass flap /
By-pass Klappe
Preheater /
Vorwärmer
Operational diagram
Funktionsschema
FLK-B
