HEAT RECOVERY AIR HANDLING UNITS
Series
Casing
Series
VENTS
VUT 300 EVK
mini EC
Made of white high-quality polymer coated steel,
internally filled with 15 mm cellular polypropylene
VENTS
VUT 301 EVK
mini EC
heat- and sound-insulating layer.
Filter
Supply and extract air flows are purified through two
bag filters with filtering class G4. The kitchen hood is
equipped with a multi-layer aluminium fat filter. The
replaceable filter with filtering class F7 is optionally
available.
Fans
High-efficient electronically-commutated motors
with external motor and impeller with backward
curved blades.
Such motors are the most state-of-the-art energysaving solution.
EC motors are featured with high performance
and total speed controllable range. High efficiency
reaching 90% is the premium advantage of the
electronically-commutated motors.
Air handling unit in heat- and sound-insulated casing with electric
heater and kitchen hood. Air capacity up to 270 m3/h,
heat recovery efficiency up to 95%.
Heat exchanger
Counter-flow polystyrene heat exchangers with high
heat recovery efficiency. The drain pan under the
heat exchanger block ensures condensate removal.
In case of freezing danger determined by the
temperature sensor the supply fan is turned off
Description
The air handling units VUT 300/301 EVK mini EC units
with heat recovery connected to the kitchen hood are
the ideal solution for energy-saving ventilation of the
flats and cottages. The units have two operation logics:
Heat recovery operation mode. When the kitchen
hood is turned off, air is extracted through the air
ductworks and transfers heat to supply air through
the heat exchanger.
Kitchen hood operation mode. When the kitchen
hood is turned on, air is extracted through the kitchen
hood and is exhausted directly through the exhaust
duct outside. Both operation modes provide balanced
ventilation in the room.
for the period required for the heat exchanger
defrosting. The heat exchanger is easily removed for
cleaning. When the kitchen hood is turned on, extract
air is directed from it directly to the air duct, passing
by the heat exchanger.
Heater
The unit is equipped with an electric heater located
Compatible with round Ø125 mm air ducts.
Modifications
VUT 300 EVK mini EC – unit with an integrated
control panel.
VUT 301 EVK mini EC – unit with an external control
panel.
downstream of the heat exchanger to warm up supply
air um to set comfortable temperature up to +30 °C.
The heating electric elements have active overheating
protection controlled by the temperature sensor in
the air duct and two overheating thermostats. The
first one is actuated at +50 °C and has automatic
reset and the second one is actuated at +90 °C and
has manual reset. Air supply to the electric heating
Designation key:
Series
Rated air capacity
[m3/h]
Heater type
Duct connection
Modification
Type
Motor type
VENTS
VUT
300 – unit with a built-in control
panel;
301 – unit with an external
control panel.
E – electric heater
V – vertical duct
connection
K – kitchen hood
mini
EC – synchronous
electronically
commutated motor
Accessories
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WWW.VENTILATION-SYSTEM.COM
elements at the end of the heating cycle ensures
cooling of the electric heating elements.
The supply fan is turned off in case of freezing
danger for the period required for the heat
exchanger defrosting.
Control and automation
The unit has integrated automation with the
control from the multifunctional built-in control
panel for the VUT 300 EVK mini EC model or the
external control panel for the VUT 301 EVK mini EC
model. Both models are controllable from a remote
controller (optional accessory). The speed control
buttons for the kitchen hood mode are located on
the front panel of the kitchen hood.
Control and protection functions:
Changeover between heat recovery and kitchen
hood operation modes.
Turning the unit on/off from the control panel.
Air supply to the electric heating elements during
the unit shutdown.
Three fans speeds are adjusted during the system
setup.
Relay input for connection of the CO2 / humidity
/ IAQ or any other sensor that switches the unit to
maximum speed.
The unit is turned to maximum speed until CO2
concentration in the room drops down and the
contact is opened. After that the unit reverts to the
minimum speed.
To arrange this operating logic it is required to
connect any sensor with relay output and to
connect it to the respective unit input. The sensor is
available upon separate order.
Filter clogging control by motor hours.
Unit week schedule setting.
Controllable ventilation on demand:
The unit is equipped with a contact for relay
signal from an external sensor. The unit operation
according to an external sensor (for example, CO2
sensor) enables to reduce energy demand.
Operation logic of the unit with CO2 sensor:
An unoccupied ventilated premise has low CO2
The heat exchanger downstream of the heat
exchanger warms up supply air flow up to the
comfortable temperature.
concentration and requires no intensive ventilation.
The unit operates at low speed for minimum
permanent ventilation.
As people come inside, CO2 concentration in the
Input for alarm signal from the fire fighting
system.
closes relay contact.
premise increases and the signal from CO2 sensor
Mounting
The unit must be fixed to the wall with anchor bolts
in a position that enables condensate drainage.
While mounting the unit provide service access on
the front panel side.
To ensure the correct supply air warming up
function, install the duct temperature sensor in the
supply air duct (included in the delivery set) not
more than 1 m from the supply air duct end.
Extra accessories
CO2-1 or CO2-2 sensors are recommended for
arrangement of automatic control of air capacity
and extra energy saving.
Technical data
VUT 300/301 EVK mini EC
1
Unit supply voltage, 50 Hz [V]
2
3
1~230
Max. fan power [W]
16
94
187
Fan current [A]
0.1
0.6
1.1
Electric heater power [kW]
1.5
Electric heater current [A]
6.5
Total unit power [kW]
1.69
Total unit current [A]
7.6
Max. air capacity [m3/h]
RPM [min-1]
Sound pressure level at 3 m [dBA]
Transported air temperature [°C]
Casing material
Insulation
Filter: extract / supply
40
190
270
1280
2240
3200
28
39
42
from – 25 up to +60
polymer coated steel
15 mm (polypropylene foam foil)
bag type G4/G4 (order code SFK 300 EV/EVK mini EC and SFK 300 EV/
EVK mini EC F7
Connected air duct diameter [mm]
Ø 125
Weight [kg]
38 / 37
Heat recovery efficiency
Heat exchanger type
Heat exchanger material
VENTS VUT
HEAT RECOVERY AIR
300/301 EVK
HANDLING UNITS
MINI EC
Speed
up to 95 %
Counter-flow
Polystyrene
VENTS. Industrial and commercial ventilation | 01-2014
257
HEAT RECOVERY AIR HANDLING UNITS
Technical data:
Overall dimensions:
VENTS VUT 300/301 EVK mini EC
Air capacity [l/s]
Static pressure, ΔP [Pa]
0
10
20
30
40
50
60
70
80
VUT 300/301 EVK mini EC
600
500
400
3
300
2
200
100
1
0
0
50
100
150
200
250
300
Air capacity [m3/h]
Air capacity [l/s]
Total fan power [W]
0
10
20
30
40
50
60
70
80
250
200
3
150
2
100
50
VUT 300/301 EVK mini EC
1
0
0
50
100
150
200
250
300
Air capacity [m3/h]
Air capacity [l/s]
0
10
20
30
40
50
60
70
80
Heat recovery
efficiency [%]
100
VUT 300/301 EVK mini EC
95
90
85
80
0
50
100
150
200
250
300
Air capacity [m3/h]
Sound pressure level
LwA to inlet
LwA to outlet
LwA to environment
244
Hz
dB(A)
dB(A)
dB(A)
Tot.
58
64
53
63
27
30
27
125
41
46
38
Octave-frequency band [Hz]
250
500
1000 2000
50
55
52
47
56
60
58
53
46
50
42
41
4000
43
48
36
8000
34
42
18
VENTS. Industrial and commercial ventilation | 06-2013
WWW.VENTILATION-SYSTEM.COM
Unit design:
control unit
electric heater
supply filter
extract filter
heat exchanger
exhaust fan with EC
motor
supply fan with EC motor
condensate drain pan
bypass
Air disc valve
VENTS VUT 300/301 EVK
mini EC
VENTS VUT
HEAT RECOVERY AIR
300/301 EVK
HANDLING UNITS
MINI EC
Application example:
Ventilation hood
VENTS. Industrial and commercial ventilation | 06-2013
245
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