DV QuickGuide uk 06 2015 V5
The unit casing
The unit casing consists of a strong
frame construction with sound and
heat insulated panels. The frame
consists of a closed 1,3/1,5 mm
steel profile with surface of alu-zinc
AZ185 for corrosion protection. The
corners are die-cast and painted alu-
minum corners. The panels are also
corrosion protected with alu-zinc
AZ185 and consist of a sandwich
construction with two 0,8 mm steel
sheets and 50 mm mineral wool. The
unit sections are assembled with an
assembly bracket; Disc-Lock. Large
inspection doors provide easy access
for service and maintenance. It is
possible to lift off the doors, if need-
ed. The doors are provided with lock-
able handles.
Plug fan DVE
The plug fan DVE has the impeller
fitted direct to the motor shaft and is
built into a soundproof unit casing.
The fan is a single inlet, free-blowing
fan where the unit casing acts as fan
housing. DVE has an efficiency of up
to 75% and a low noise level. On
large units, twin fans for parallel
operation are built-in. DVE can be
supplied with EC motor (IE4) in
Danvent DV 10-40, PM motor (IE4)
or AC motor (IE2). Fan impeller and
motor are statically and dynamically
balanced. Motor and fan are mount-
ed on a sturdy frame, which is placed
on rubber vibration isolators, and the
fan inlet is connected to the unit with
a flexible connection.
Heat exchangers
The rotary heat exchanger DVC is
supplied in 3 types: Standard, enthal-
py and sorption heat exchangers.
Generally, the rotary heat exchanger
has a high efficiency from 75% to
87% depending on operating condi-
tions. It can recover moisture and is
the heat exchanger that requires the
least space. The enthalpy exchanger
recovers more moisture, and there-
fore contributes to the humidification
of the supply air. The sorption
exchanger dehumidifies the air more,
making it particularly suitable for
dehumidifying the outdoor air, for
example before cooling.
The plate heat exchanger DVQ is sup-
plied in 3 types: Standard, high effi-
ciency and counter flow heat
exchangers. Generally, the plate heat
exchanger has a high efficiency. It has
separated airflows, and thus the
transfer of odors to the supply air is
avoided. There is no transfer of mois-
ture between the two airflows, and
so it can also be used for dehumidifi-
cation. The standard cross flow
exchanger has an efficiency of up to
65%. The high efficiency cross flow
exchanger has an efficiency of up to
75%. These two types are supplied in
two variants: One made of aluminium
for comfort and one made of corro-
sion-resistant plastic-coated alumini-
um for aggressive environments. The
counter flow exchanger has an effi-
ciency of up to 90% and is supplied
only in aluminium. The heat exchang-
ers are fitted with by-pass for capaci-
ty control and have a built-in drip tray.
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Quick Guide to Danvent DV