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Shu t o f f dampe r e ; i
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Shutoff dampers are fitted on inlet ports. The
dampers are available in different sizes based
on unit ports and actuator types – the standard
type is LM 24A and the type with spring return
is LF 24 (to be shutoff in case of power
interuption).
An option delivered separately.
F l e x i b l e connec t i on
Flexible connection for round or rectangular
ports in the unit port sizes.
An option delivered separately.
O P T I O N A L A C C E S S O R I E S ( B A S I C O V E R V I E W )
Ke.xxx; Ki.xxx
R-HW.3; R-HW.4
Fe.xxx; Fi.xxx
H.P
NFK.x
HW.xxx
Hea t i ng C i r cu i t K i t
The kit is used for heating capacity control of
hot-water coils. It includes a three-speed pump,
two shutoff ball valves and options include:
– R-HW.4
– 4-way mixing valve with the Belimo
LM 24 actuator
– R-HW.3
– 3-way mixing valve with the Belimo
LM 24 actuator
An option delivered separately.
A i r f i l t r a t i on
The DUPLEX series are equipped with filter
cartridges as standard (F7 / F5 class filters –
supply / exhaust). Other available filter
combinations are F5 / F5 and F7 / F7
Tube manome t e r s
Accessory for filters for simple view of current
pressure drop. The tube manometers are
obligatory for hygienic unit design in accordance
with the VDI 6022.
An option delivered separately.
E l ec t r i c pr ehea t e r s
EPO - V
EPO-V electric heating coils to provide the
antifreeze protection of the heat recovery
exchanger when equal-pressure ventilation is
continuously required. It is installed inside a duct
on the outdoor supply air side of the unit (e ).
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Control is provided by the DUPLEX (RD or DC)
unit control system.
When installing the heating coil requirements
specified in a separate technical sheet must be
adhered to.
An option delivered separately.
E l ec t r i c hea t i ng
co i l s EPO - V
Heating coils for round or rectangular ducts to
be connected to DUPLEX units. All switching
elements are included as standard.
Control is provided by the DUPLEX (RD or DC)
unit control system.
For capacities, dimensions and installation
requirements see separate technical sheets.
This accessory is supplied separately.
Constant airf low
and pressure
Manometers reading fan pressure together
with controls, enables inteligent fan control of
preselected airflow. This accessory assumes
the unit is equipped with digital controls of DC or RD type. Using
a second manometr (optional accessory) in the supply air duct
enables the user to control constant pressure in the supply
duct.
An option delivered separately.
OPTIONAL ACCESSORIES
CW.xxx
CD.xxx
HW ho t - wa t e r
Hea t i ng co i l s
Separately, optionally delivered hot-water
heating coils to be mounted on the housing unit.
An option delivered separately.
For systems up to 110 °C and 1,0 Mpa.
Control nodes for
chilled water chillers
Designed to control the colling capacity of chilled
water chillers. The R-CW.3 with a 3-way fitting
has a 3-way Belimo ball valve with a Belimo
TR24-SR servo drive and two ball stop valves.
An option delivered separately.
R-CW.3
VK.xxx
Spa r e ca r t r i dge
f i l t e r s
Replacement filter cartridges in different sizes
based on the unit type. Available in F5 and F7
filtration class.
D i r ec t ch i l l e r s CD
Direct chillers to be installed externally on to the
unit´s casing, to either a chamber with a hot
water heating coil or a free chamber.
An option delivered separately.
Free chamber VK
A chamber to be installed on to the unit´s
casing on supply air outlet e . It is intended for
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homogenizing air flow upstream the chiller, and
it is used only when no HW hot water heating
coil is installed.
An option delivered separately.
Ch i l l ed wa t e r
ch i l l e r CW
Chilled water chillers to be installed externally
on to the unit´s casing, to either a chamber
with a hot water heating coil or a free chamber.
For systems up to 1.0 MPa.
An option delivered separately.
EPO-V
A.MFF
EPO-V
A.CF.XXX