Vents VUT R 400 EH EC A17 User manual

USER’S MANUAL
• VUT R 400 EH EC A17
• VUT R 700 EH EC A17
• VUT R 900 EH EC A17
• VUT R 1200 EH EC A17
• VUT R 1500 EH EC A17
• VUT R 2000 EH EC A17
• VUT R 400 EH EC A18
• VUT R 700 EH EC A18
• VUT R 900 EH EC A18
• VUT R 1200 EH EC A18
• VUT R 1500 EH EC A18
• VUT R 2000 EH EC A18
Heat recovery air handling unit
equipped with an electric heater

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Safety requirements ............................................................................................... 3
Purpose ....................................................................................................................... 5
Delivery set ................................................................................................................ 5
Designation key ....................................................................................................... 5
Technical data ........................................................................................................... 6
Unit design and operating logic ........................................................................ 7
Mounting and set-up ............................................................................................. 8
Connection to power mains ................................................................................ 13
Unit control ............................................................................................................... 14
Technical maintenance ......................................................................................... 15
Fault handling .......................................................................................................... 17
Storage and transportation regulations ......................................................... 17
Manufacturer's warranty ...................................................................................... 18
Acceptance certicate ........................................................................................... 19
Seller information ................................................................................................... 19
Installation certicate ............................................................................................ 19
Warranty card ........................................................................................................... 19
CONTENTS
RECYCLE AT THE END OF THE SERVICE LIFE.
DO NOT DISPOSE THE PRODUCT WITH UNSORTED MUNICIPAL TRASH.

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• Read the user’s manual carefully prior to installing and operating 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 rules and safety precautions 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:
WARNING!
DO NOT!
SAFETY REQUIREMENTS
This user’s manual consisting of the technical details, operating instructions and technical specication covers the installation and mounting
of the VUT R EH EC heat recovery air handling unit (hereinafter referred to as «the unit»).
UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior
to any installation operations. • The unit must be grounded!
• Do not lay the power cable of the unit in
close proximity to heating equipment.
• While installing the unit follow the safety
regulations specic to the use of electric
tools.
• Do not change the power cable length at
your own discretion.
• Do not bend the power cable.
• Avoid damaging the power cable.
• Do not put any foreign objects on the power
cable.
• Unpack the unit with care.
• Do not use damaged equipment or cables
when connecting the unit to power mains.
• Do not operate the unit outside the
temperature range stated in the user’s
manual.
• Do not operate the unit in aggressive or
explosive environments.
• Do not touch the unit controls with wet
hands.
• Do not carry out the installation and
maintenance operations with wet hands.
• Do not wash the unit with water.
• Protect the electric parts of the unit against
ingress of water.

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UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Do not allow children to operate the unit. • Disconnect the unit from power mains prior to
any technical maintenance.
• Do not store any explosive or highly ammable
substances in close proximity to the unit.
• When the unit generates unusual sounds,
odour or emits smoke disconnect it from
power supply and contact the Seller.
• Do not open the unit during operation. • Do not direct the air ow produced by the unit
towards open ame or ignition sources.
• Do not block the air duct when the unit is
switched on.
• In case of continuous operation of the unit
periodically check the security of mounting.
• Do not sit on the unit and avoid placing
foreign objects on it. • Use the unit only for its intended purpose.

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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.
PURPOSE
Name Quantity
Air handling unit 1 item
Control panel 1 item
User's manual 1 item
Packing box 1 item
DELIVERY SET
Motor type
EC - electronically commutated motors
Control
A17 - th-Tune control panel with an LCD display
A18 - pGD1 control panel with an LCD display
Spigot orientation
H - horizontal
Heater type
E - electrical heater
Air capacity
[m3/h]
Heat exchanger type
R - rotary
Unit type
VUT - ventilation with heat recovery
VUT R XXX EH EC XXX
DESIGNATION KEY
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.

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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.
Hazardous parts access and water ingress protection rating:
IP 44 for the unit motors
IP 22 for the assembled unit connected to the air ducts.
The unit design is constantly being improved, so some models can slightly dier from those ones described in this manual.
TECHNICAL DATA
TECHNICAL DATA
VUT R 400 EH EC VUT R 700 EH EC VUT R 900 EH EC
VUT R 1200 EH EC VUT R 1500 EH EC VUT R 2000 EH EC
Voltage [V / Hz] 1~ 220-240 / 50-60 3~ 400 / 50-60
Maximum fan power [W] 2 items x 100 2 items x 105 2 items x 135 2 items x 208 2 items x 222 2 items x 448
Electric heater power [kW] 2,0 3,3 4,5 6,0 9,0 12,0
Total unit power [W] 2290 3615 4940 6570 9750 13070
Total unit current [A] 9,9 15,8 7,2 9,5 14,1 22,4
Maximum air capacity [m3/h] 400 700 900 1200 1500 2250
RPM up to 3100 up to 2600 up to 2600 up to 1930 up to 2000 up to 3000
Sound pressure level at 3 m distance [dB(A)] 45 52 58 60 62 64
Maximum transported air temperature [°C] -25…+60
Casing material aluzinc
Insulation 20 mm mineral wool 25 mm mineral wool
Filter:
extract G4
intake G4
Connected air duct diameter [mm] Ø160 Ø250 Ø250 Ø315 Ø315 500x300
Weight [kg] 112 128 130 165 175 198
Heat recovery eciency [%] up to 85
Heat exchanger type rotary
Heat exchanger material aluminium

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L1
F
G
F
G
E
F
G
ØD
J
L
J
L
L
J
A1
A
A1
A1
A
A
H
H
H
E
X
Y
VUT R 400 EH EC / VUT R 700 EH EC / VUT R 900 EH EC
VUT R 1200 EH EC / VUT R 1500 EH EC
VUT R 2000 EH EC
E
Unit model Dimensions [mm]
øD A A1 E F G L L1 H J X Y
VUT R 400 EH EC 159 1050 1167 225 167 333 648 200 670 440 - -
VUT R 700 EH EC 249 1210 1326 243 180 340 745 260 700 580 - -
VUT R 900 EH EC 249 1210 1326 243 180 340 745 260 700 580 - -
VUT R 1200 EH EC 314 1335 1450 373 220 438 745 - 880 460 - -
VUT R 1500 EH EC 314 1430 1535 427 275 460 855 - 1010 560 - -
VUT R 2000 EH EC - 1485 1754 - 275 480 875 - 1010 630 500 300

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The unit has the following operating logic:
Warm stale extract air from the room ows to the unit, where it is ltered by the extract lter. Then the air is moved through the rotary
heat exchanger and is exhausted outside with the exhaust fan. Clean cold air from outside is moved to the intake lter. Then ltered air ows
through the rotary heat exchanger and the electric heater where it is warmed up to the pre-set temperature value and is moved to the room
with the supply fan.
Heat energy of warm extract air is transferred to clean intake fresh air from outside and warms it up in the rotary heat exchanger. Heat
recovery minimizes thermal energy losses and space heating expenses in cold seasons.
The unit is a framework construction that includes a frame made of rigidly xed sandwich panels. The three-layer sandwich panels are made
of aluminium and galvanized sheets, internally lled with heat- and sound-insulated mineral wool.
The air handling unit is equipped with quick-detachable service panels for scheduled repair and maintenance operations.
Route a power and a ground cable through the screwed cable glands to connect those to the terminal block located in the control unit.
Thewiring diagram is shown on the inner side of the control unit cover.
UNIT DESIGN AND OPERATING LOGIC
INTAKE AIR
EXHAUST AIR
SUPPLY AIR
EXTRACT AIR
Exhaust fan
Rotary heat exchanger
Extract lter
Control unit
Supply fan
Electric heater
Intake lter
UNIT OPERATION LOGIC
SERVICE SIDE VIEW

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А
60 mm
SUSPENDED MOUNTING UNIT MOUNTING ON A HORIZONTAL PLANE
Model A, mm
VUT R 400 EH EC 800 mm
VUT R 700 EH EC
900 mmVUT R 900 EH EC
VUT R 1200 EH EC
VUT R 1500 EH EC 1000 mm
VUT R 2000 EH EC
MOUNTING AND SETUP
While mounting the unit provide enough access for maintenance or repair work. The minimum recommended clearances between the unit
and the adjoining walls are given in the gure below.
Before starting the unit make sure that the rotary heat exchanger cells are clean and free from damage. Check the belt tension. The tension
force is regulated by the spring on the motor suspension mount.
The unit may be suspended on a threaded rod that is xed inside a dowel or may be rigidly xed on a horizontal plane.
To attain the optimal performance of the unit and to minimise turbulence-induced air pressure losses connect a straight air duct section on
both sides of the unit while mounting.
Minimum straight air duct length:
• equal to 1 air duct diameter on intake side
• equal to 3 air duct diameters on outlet side
If the air ducts are not connected or the connected air ducts are too short, protect the unit parts from ingress of foreign objects by covering
the spigots with a protecting grille or other protecting device with mesh width not more than 12.5 mm to protect internal parts of the unit
against penetration of foreign objects.
SAFETY PRECAUTIONS
The unit must be mounted to a rigid and stable structure.
The unit must be suspended using anchor bolts. Make sure that the base structure is capable of sustaining the unit weight. Otherwise reinforce
the mounting location with beams or similar elements.
If the bolts used for the unit mounting are too short the unit can generate abnormal
noise and resonate with the ceiling. Use bolts of sucient length to prevent resonance.
If the abnormal noise is generated at the spiral air duct joint replace the spiral air duct
with a exible one to prevent resonance. Flexible anti-vibration connectors are another
alternative for dealing with resonance.
UNIT MOUNTING
Install M8 anchor bolts before proceeding with the installation. Insert the anchor
bolt into the suspended mounting opening and secure it with nuts and washers. The
unit mounting example is shown in the illustration on the right.
Threaded rod
Nut
Nut and lock nut
L-shaped bracket
Washer
Vibration
absorbing rubber

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THTUNE CONTROL PANEL INSTALLATION
To install the rear part of the control panel use a suitable mounting box (minimum diameter 65 mm and minimum depth 31 mm).
1. 1. Use a screwdriver to pull the front and the rear sides of the
control panel apart.
2. Disconnect the 4-pin socket from the front part of the control
panel.
3. Complete the electrical connections according to the external wiring diagram (Page 12).
4. Secure the rear part of the control panel in the mounting box using the screws supplied.
5. Reattach the 4-pin connector.
6. Lay all the cables and install the control panel starting from the bottom. Make sure that none of the internal wires prevent closing with a click.
4
5
64
5
6
74
60
74
60
Outline dimensions of the control panel
rear part, mm
The outline drawing of the control panel rear part is on the left.