Vents VUT 300 E2V EC User manual

USER’S MANUAL
VUT 300 E2V EC
VUT 300-2 E2V EC
Heat recovery air handling unit

2VUT 300 E2V EC
Safety requirements .................................................................................
Introduction ................................................................................................
Purpose .........................................................................................................
Delivery set ..................................................................................................
Designation key .........................................................................................
Technical data .............................................................................................
Unit design and operating principle ..................................................
Mounting and set-up ...............................................................................
Condensate drainage .............................................................................
Connection to power mains ..................................................................
Unit control .................................................................................................
Technical maintenance ...........................................................................
Troubleshooting ........................................................................................
Storage and transportation regulations ...........................................
Manufacturer’s warranty ........................................................................
Acceptance certicate .............................................................................
Seller information .....................................................................................
Connection certicate .............................................................................
Warranty card .............................................................................................
CONTENTS
3
5
5
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6
6
9
10
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12
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21
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24
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24
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27

3
VUT 300 E2V EC
SAFETY REQUIREMENTS
• Read the user’s manual carefully prior to the operation and installation of the heat recovery air
handling unit (hereinafter referred to as «the unit»).
• Full the user’s manual requirements as well as the provisions of all the applicable local and national
construction, electrical and technical norms and standards.
• The warnings contained in the user’s manual must be considered most seriously since they contain
vital personal safety information.
• Failure to follow the safety requirements noted in this user’s manual may result in an injury or unit
damage.
• After a careful reading of the manual, keep it for the entire service life of the unit.
• While transferring the unit control the user’s manual must be turned over to the receiving operator.
Symbol legend:
UNIT MOUNTING SAFETY PRECAUTIONS
WARNING!
DO NOT!
Disconnect the unit from power
mains prior to any installation
or repair operations.
The unit must be
grounded!
The unit must not be operated
outside the temperature range
stated in the user's manual
and in aggressive or explosive
environments.
Do not use damaged
equipment or cables when
connecting the unit to
power mains.
While installing the unit follow
the safety regulations specic
to the use of electric tools.
Unpack the unit with care.
Do not change the power cable
length at your own discretion.
Do not bend the power cable.
Avoid damaging the power
cable.
Do not position any
heating devices or other
equipment in close
proximity to the unit
power cable.

4VUT 300 E2V EC
Do not touch the unit
controls with wet hands.
Do not carry out the unit
maintenance with wet
hands.
Do not wash the
unit with water.
Protect the unit electric
parts from water ingress.
Use the unit only
as intended by the
manufacturer. Do not
connect a clothes dryer or
other similar equipment
to the unit or the
ventilation system.
Do not put any water
containers on the unit, i.e.
ower vases.
Do not sit on the unit
and avoid placing foreign
objects on it. OFF
ON
Disconnect the unit from
power mains prior to
maintenance.
Do not let children operate
the unit.
Do not damage the
power cable while
operating the unit.
Do not put any foreign
objects on the power
cable.
Keep combustible gases
and inammable products
away of the unit.
Do not open the
operating unit.
When the unit generates
unusual sounds, odour or
emits smoke disconnect
it from power supply and
contact the Seller.
In case of continuous
operation of the unit
periodically check the
security of mounting.
Do not block the air duct
when the unit is on.
Do not let air ow from
the unit be directed to
the open ame devices or
candles.
UNIT OPERATION SAFETY PRECAUTIONS

5
VUT 300 E2V EC
PURPOSE
DELIVERY SET
Air handling unit - 1 item
User’s manual - 1 item
Wall-mounted control panel - 1 item
Remote control - 1 item
Duct temperature sensor - 1 item
Packing box - 1 item
Fastening kit - 1 item
The unit is designed to ensure continuous mechanical air exchange in houses, oces, hotels, cafés,
conference halls, and other utility and public spaces as well as to recover the heat energy contained in
the air extracted from the premises to warm up the ltered stream of supply air.
The unit is not intended for organizing ventilation in swimming pools, saunas, greenhouses, summer
gardens, and other spaces with high humidity.
Due to the ability to save heating energy by means of energy recovery, the unit is an important
element of energy-ecient premises.
The unit is a component part and is not designed for stand-alone operation.
It is rated for continuous operation.
Transported air must not contain any ammable or explosive mixtures, evaporation of chemicals,
sticky substances, brous materials, coarse dust, soot and oil particles or environments favourable for
the formation of hazardous substances (toxic substances, dust, pathogenic germs).
Relative humidity of transported air must not exceed 80 % at an ambient temperature of +20 °C.
THE UNIT MAY NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED
PHYSICAL, MENTAL OR SENSORY CAPACITIES, OR LACKING THE APPROPRIATE
TRAINING.
THE UNIT MUST BE INSTALLED AND CONNECTED ONLY BY PROPERLY QUALIFIED
PERSONNEL AFTER THE APPROPRIATE BRIEFING.
THE CHOICE OF UNIT INSTALLATION LOCATION MUST PREVENT UNAUTHORIZED
ACCESS BY UNATTENDED CHILDREN.
INTRODUCTION
This user’s manual includes technical description, operation, installation and mounting guidelines,
technical data for the VENTS VUT 300 E2VEC heat recovery air handling unit, hereinafter referred as
«the unit».

6VUT 300 E2V EC
DESIGNATION KEY
The unit is designed for indoor application with the ambient temperature ranging from +1 °C up to
+40 °C and relative humidity up to 80 %.
In order to prevent condensation on the internal walls of the units, it is necessary that the surface
temperature of the casing is 2-3 °C higher than the dew point temperature of the transported air.
The unit is rated as a Class I electrical appliance.
Hazardous parts access and water ingress protection rating:
IP44 for the unit motors
IP22 for the assembled unit connected to the air ducts.
The main outside and connecting dimensions as well as the appearance and technical parameters of
the unit are given on Figure 1 and in Table 1.
The unit design is constantly being improved, so some models may be slightly dierent from those
ones described in this manual.
VUT 300-X E 2 V EC
Motor type
electronically commutated
Spigot orientation
V - vertical
Air capacity [m3/h]
Spigot diameter [mm]
Unit type
VUT - ventilation with heat recovery
Electric heater
Number of heaters
_ – 150
2 – 160
TECHNICAL DATA

7
VUT 300 E2V EC
Fig. 1. Overall and connecting dimensions
600
697
14
59
260
A1
A
700
H
410 110180
123109
D
10 m cable
Reference dimensions
Model Ø D A A1 H
VUT 300 E2V EC 150 428 373 156
VUT 300-2 E2V EC 160 458 403 186

8VUT 300 E2V EC
Model VUT 300 E2V EC VUT 300-2 E2V EC
Unit voltage [V/50(60) Hz] 1 ~ 230
Maximum fan power [W] 212
Fan current [A] 1.4
Electric heater power [kW] 2 item x 2
Electric heater current [A] 2 item x 8.7
Total unit power [W] 4.21
Maximum unit current [A] 18.8
Maximum air capacity [m3/h] 300
Sound pressure level at 3 m distance [dB(A)] 37
Transported air temperature [°C] from -25 up to +40
Casing material aluzinc
Insulation 20 mm mineral wool
Filter: extract/supply pocket G4/G4 (F7*)
replaceable lter ordering number:
SFK 300 E2V EC G4/SFK 300 E2V EC F7
Connected air ducts diameter [mm] Ø 150 Ø 160
Weight [kg] 38
Heat recovery eciency [%] from 83 up to 95
Heat exchanger type counter-ow
Heat exchanger material polystyrene
*option
Table 1. Unit technical data
Ambient temperature [°C] from 0 up to 40
Relative humidity [%] from 5 to 90 (no condensation)
Cable cross section [mm2] from 0.18 up to 0.35
Material ABS-plastic
Dimensions (WxHxD) [mm] 86 x 86 x 14
Cable length [m] up to 10
Ingress protection IP30
Table 2. Control panel technical data

9
VUT 300 E2V EC
DESIGN AND OPERATING PRINCIPLE
The unit operation is as follows:
Warm extract air from the room ows into the unit and is cleaned in the extract lter. Then the air is
moved through the heat exchanger and is exhausted outside with the extract fan. Cold fresh air from
outside ows into the unit, where it is cleaned in the supply lter. If the supply air temperature is
below the value set from the control panel, supply air pre-heating is provided by the built-in electric
heater. Then the air ows through the heat exchanger and is moved to the room with the supply
fan. The heat exchanger transfers the heat energy of the warm extract air to the cold fresh air from
outdoors. The air ows are fully separated while owing through the heat exchanger. Heat recovery
minimizes heat losses, which reduces the cost of space heating in the cold season.
The air handling unit is equipped with a 2 kW electric heater with overheating protection which provides
supply air pre-heating.
The unit design and operation principle are shown in the Fig. 2.
The basic unit modication includes:
Extract fan
Supply fan
Counter-ow heat exchanger
G4 extract air lter
G4 supply air lter
Drain pan
Drain pipes
Electric heater for air preheating
Electric heater for air post-heating
Supply air temperature duct sensor.
Extract fan Supply fan
Drain pipes Drain pan
Counter-ow heat exchanger
Intake lter
Electric heater
for air preheating
Extract lter
Electric heater
for air post-heating
EXHAUST AIR
INTAKE AIR
EXTRACT AIR SUPPLY AIR
min 1m
Supply air temperature duct sensor
Fig. 2. Unit design and operating logic

10 VUT 300 E2V EC
MOUNTING AND SET-UP
The units are designed for wall mounting.
While installing the unit ensure convenient access for subsequent maintenance and repair.
The mounting surface must be smooth.
Mounting of the unit to an uneven surface can lead to the unit casing distortion and operation
disturbance.
To ensure proper operation of the supply air pre-heating function install a supply air temperature duct
sensor (item 11 on Fig. 2) at the minimum distance of 1 m from the pipe marked «To Indoors».
To install the supply air temperature duct sensor:
drill a Ø 9 mm hole in the air duct;
install the sensor into the hole;
secure the sensor ange with three self-tapping screws.
The sensor and the air duct joint should be additionally sealed.
Fig. 3. Unit mounting
The air handling unit is secured to the wall with anchor bolts (see Fig. 3).
16*
Anchor bolt