Vents VUT 160 V EC User manual

VUT V(1)(B) EC
VUE V(1)(B) EC
Heat and energy recovery
air handling unit
USER’S MANUAL

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This user’s manual is a main operating document intended for technical, maintenance, and operating staff.
The manual contains information about purpose, technical details, operating principle, design, and installation of the VUT/VUE V(1)(B) EC
unit and all its modifications.
Technical and maintenance staff must have theoretical and practical training in the field of ventilation systems and should be able to
work in accordance with workplace safety rules as well as construction norms and standards applicable in the territory of the country.
The information in this user’s manual is correct at the time of the document’s preparation.
The Company reserves the right to modify the technical characteristics, design, or configuration of its products at any time in order to
incorporate the latest technological developments.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means in any information
search system or translated into any language in any form without the prior written permission of the Company.
• Please read the user’s manual carefully prior to installing and operating the unit.
• All user’s manual requirements as well as the provisions of all the applicable local and national construction, electrical, and technical
norms and standards must be observed when installing and operating the unit.
• 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.
SAFETY REQUIREMENTS
CONTENTS
UNIT INSTALLATION AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior
to any installation operations. • Unpack the unit with care.
• The unit must be grounded!
• While installing the unit, follow the safety
regulations specific to the use of electric
tools.
Safety requirements..................................................................................................................................................................... 2
Purpose................................................................................................................................................................................................ 4
Delivry set........................................................................................................................................................................................... 4
Designation key.............................................................................................................................................................................. 4
Technical data.................................................................................................................................................................................. 5
Design and operating principle ........................................................................................................................................... 6
Installation and set-up................................................................................................................................................................ 8
Connection to power mains .................................................................................................................................................. 12
Technical maintenance.............................................................................................................................................................. 13
Storage and transportation regulations.......................................................................................................................... 14
Manufacturer’s warranty........................................................................................................................................................... 15
Certificate of acceptance.......................................................................................................................................................... 16
Seller information.......................................................................................................................................................................... 16
Installation certificate.................................................................................................................................................................. 16
Warranty card................................................................................................................................................................................... 16

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• 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.
• Do not lay the power cable of the unit in
close proximity to heating equipment.
• 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.
• 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
flammable 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 flow produced by the
unit towards open flame 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.
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED MUNICIPAL WASTE.

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Due to the ability to save heating energy by means of energy recovery, the unit is an important element of energy-efficient premises.
The unit is a component part and is not designed for stand-alone operation.
The unit is designed to ensure continuous mechanical air exchange in houses, offices, 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 filtered stream
of supply air.
The unit is rated for continuous operation. Transported air must not contain any flammable or explosive mixtures, evaporation of
chemicals, sticky substances, fibrous materials, coarse dust, soot and oil particles or environments favorable for the formation of hazardous
substances (toxic substances, dust, pathogenic germs).
THE UNIT SHOULD NOT BE OPERATED BY CHILDREN OR PERSONS WITH REDUCED
PHYSICAL, MENTAL, OR SENSORY CAPACITIES, OR THOSE WITHOUT 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.
PURPOSE
DELIVRY SET
NAME NUMBER
Air handling unit 1 pc.
User’s manual 1 pc.
Control panel user’s manual 1 pc.
Control panel 1 pc.
Installation kit 1 pc.
Packing box 1 pc.
DESIGNATION KEY
VUT 350 V 1 B EC
Motor type
EC — electronically commutated
Additional components
_ — no additional components
B — bypass
Casing design
Spigot orientation
V — vertical spigot orientation
Rated air capacity [m3/h]
Series of units
VUT — heat recovery air handling unit
VUE — energy recovery air handling unit

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TECHNICAL DATA
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 %.
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 unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
TECHNICAL DATA
MODEL
VUT 160 VB EC VUT 160 V1B EC VUE 160 VB EC VUE 160 V1B EC VUT 350 VB EC VUT 350 V1B EC VUE 350 VB EC VUE 350 V1B EC VUT 550 VB EC VUE 550 VB EC
Voltage [V/50 Hz] 1 ~ 230
Maximum fan power [W] 51 170 333
Maximum unit current (without a heater) [A] 0,4 1,3 2,3
Maximum air capacity [m3/h] 180 415 380 415 380 750
Sound pressure level at a distance of 3 m [dB(A)] 24-45 28-47 28-47
Maximum transported air temperature [°C] from -25 up to +60
Casing material painted steel
Insulation, mineral wool 20 mm 40 mm
Filtering class of the extract filter G4
Filtering class of the supply filter F7 (G4 optional)
Weight [kg] 44 49 44 49 66 55 66 55 83
Heat recovery efficiency [%] 88-98/80-94 80-89/76-89 84-94/74-90 85-88/72-92
Heat exchanger type counter-flow
Heat exchanger material polystyrene enthalpy
membrane* polystyrene enthalpy membrane* polystyrene enthalpy membrane*
* — The units are equipped with an enthalpy heat exchanger and do not require condensate drainage.
ØD1
ØD
L
L1
H
B1
L2
B
H1
MODEL DIMENSIONS MM
ØD ØD1 BB1 HH1 LL1 L2
VUT/VUE 160 V(B) EC 124 18 343 330 690 580 600 388 143
VUT/VUE 160 V1(B) EC 124 18 385 370 712 620 640 388 143
VUT/VUE 350 VB EC 159 18 604 590 758 675 730 426 230
VUT/VUE 350 V1B EC 159 18 488 475 758 673 730 426 190
VUT/VUE 550 VB EC 199 18 736 722 758 674 823 493 284

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The unit has the following operating principle: Warm stale extract air from the room flows into the unit, where it is filtered by the extract
filter, then air flows through the heat exchanger and is exhausted outside by the extract fan. Cold fresh air from the outside flows into
the unit, where it is cleaned by the supply filter. Then the air flows through the heat exchanger and is directed to the room with the
supply fan. Heat energy of warm extract air is transferred to clean intake fresh air from the outside and warms it up. The air flows are fully
separated while flowing through the heat exchanger. Heat recovery minimizes heat losses, which reduces the cost of space heating in
the cold season.
UNIT DESIGN
Service panel
Inspection door
Control panel
Supply fan
Extract fan
Bypass damper
Supply air temperature sensor
Extract filter
Drain pan
Control unit
Drain pipe
Counter-flow heat exchanger
Supply filter
Freeze protection sensor
Outdoor temperature sensor
Electric lead-ins
The air handling unit is equipped with a removable front service panel for repair and maintenance operations. The removable service
panel design enables to change the service side location.
The control unit is accessible for installation and wiring operations through the inspection door on top of the unit. For accessing the
control unit remove the service panel after installation and wiring operations. The control unit is accessible for service operations through
the swivel mounting plate. The power cable and ground cable are connected to the control unit via the electric lead-ins.
The bypass damper is open or closed depending on operation mode of the unit.
The difference between the supply and extract air flow temperature leads to condensate generation. Condensate is collected in the drain
pan and is removed outside through the drain pipe.
Accessories for the unit are available on a separate order.
• HV1 humidity sensor.
The unit with an installed humidity sensor maintains a set indoor humidity point. As the extract air humidity rises above the set point,
the system automatically switches to the maximum speed. As the humidity drops down below the set point the unit returns to the
previous mode. Installation and connection of the humidity sensor (see page 8) is carried out on site by the service technician.
• NKP duct heater for supply air pre-heating.
The heater maintains the duct air temperature at a point that prevents the heat exchanger freezing. A control system regulates heater
operation. Mounting and connection of the heater, see page 9.
• NKD duct heater for supply air post-heating.
The heater maintains a room temperature set by the temperature sensor in the control panel. A control system regulates heater operation.
Mounting and connection of the heater, see page 9.
DESIGN AND OPERATING PRINCIPLE

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UNIT OPERATION MODES
Heat Recovery mode Summer Cooling mode
Warm stale extract air from the room flows into the unit, where
it is filtered by the extract filter, then air flows through the heat
exchanger and is exhausted outside by the extract fan. Cold fresh
air from outside flows into the unit, where it is cleaned in the supply
filter. Then the air flows through the heat exchanger and is directed
to the room with the supply fan.
Supply air is heated in the heat exchanger by transferring the
heat energy of warm and humid extract air to the cold fresh air.
The air flows are fully separated while flowing through the heat
exchanger. Heat recovery minimizes heat losses, which reduces the
cost of space heating in the cold season.
Service side view
INTAKE AIRSUPPLY AIR
EXTRACT AIR
EXHAUST AIR
The bypass damper is opened, the extract air that is removed from
the premises is routed along the bypass duct and does not come
in contact with the heat exchanger.
The temperature of the air is not changed after passing through
the heat exchanger.
INTAKE AIR SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
Back side view
Freeze Protection of the Heat Exchanger
The unit has two automatic heat exchanger freeze protection modes depending on the unit model.
In case of a freezing danger* the supply fan is turned off.
To activate the Freeze Protection mode, refer to the user’s manual
for the control panel, the “Engineering menu”, “Additional options”
and “Supply fan shutdown”sections.
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
In case of a freezing danger* the electric pre-heater (NKP) is
activated. To activate the Freeze Protection mode, refer to the user’s
manual for the control panel, the “Engineering menu”, “Additional
options”and the “Heating control” sections.
Back side view
В ПОМЕЩЕНИЕSUPPLY AIR
ИЗ ПОМЕЩЕНИЯ
EXTRACT AIR
С УЛИЦЫ
INTAKE AIR
EXHAUST AIR
EXHAUST AIR
*Freezing danger appears when the exhaust air temperature downstream of the heat exchanger falls below +5 °C and the supply air
temperature upstream of the heat exchanger falls below -3 °C . As the temperature rises the unit returns to the previous mode.

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Post-heating
The process of supply air post-heating by the NKD duct heater is
described in the user’s manual for the control panel. For details,
refer to the “Engineering menu”, “Additional options” and the
“Heating control” sections.
Back side view
С УЛИЦЫINTAKE AIR
ИЗ ПОМЕЩЕНИЯ
EXTRACT AIR
НА УЛИЦУ
EXHAUST AIREXHAUST AIR
SUPPLY AIR
SUPPLY AIR
INSTALLATION AND SETUP
READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT
HV1 HUMIDITY SENSOR INSTALLATION AND CONNECTION
The HV1 humidity sensor is not included in delivery set and can be ordered separately.
The humidity sensor must be installed prior to unit mounting.
Install the humidity sensor through the extract spigot into the mount on the extract air duct panel and connect the humidity sensor
contact socket to the respective contact socket on the control unit, refer to the External wiring diagram.
Exhaust air duct
Contact socket
for connection
to the control unit
HV1 humidity sensor
Contact socket
for connection
to the humidity sensor
Mount

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INSTALLATION AND WIRING OF THE HEATERS TO THE UNIT
The NKP and NKD heaters are not included in the delivery set and are available upon separate order.
The heaters are rated for connection to single-phase AC 230 V/50(60) Hz.
The NKP and NKD heaters may be connected to the unit both as a single unit each or jointly.
Prior to connecting the heater to the air handling unit remove the pre-installed plugs from the internal socket connectors.
WARNING!
• Do not remove the plugs before the heaters are connected to the air handling unit.
• Make sure to cover the socket connector with the plugs after dismantling of the connecting cable.
• If only one heater is connected do not remove the plugs from the other socket connector that is not in use.
• If the socket connectors are not covered with plugs for any reasons, the air handling unit does not start during connection to power
supply and the control panel displays DI1 and DI3 errors for NKP and DI1, DI3 and TE5 errors for NKD. Turn the air handling unit off
and cover the socket connectors with the plugs to troubleshoot the errors.
Attach the NKP heater to the air duct connected to the intake air spigot.
The heater is connected to the air handling unit via a connecting cable with DB-9M socket connectors inserted to the external socket
connectors DB-9F on the unit and the heater.
Attach the NKD heater to the air duct connected to the supply air spigot.
Install the air temperature sensor TE5 in the supply air duct downstream of the heater. Keep the minimum distance of 1 m between the
heater and the sensor.
Connect the heater to the air handling unit via a connecting cable with DB-15M socket connectors inserted to the external socket
connectors DB-15F on the unit and the heater.
NKD
NKP
С УЛИЦЫINTAKE AIR
В ПОМЕЩЕНИЕ
SUPPLY AIR
TE5 temperature sensor
min 1 m

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SERVICE SIDE CHANGE FOR UNIT INSTALLATION:
1
3
2
4

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UNIT INSTALLATION
To get the best performance of the unit and to minimize turbulence-induced air pressure losses, connect the straight air duct section to
the spigots on both sides of the unit while installing.
Minimum straight air duct length:
• equal to 1 air duct diameter on the intake side
• equal to 3 air duct diameters on the outlet side
If the air ducts are too short or not connected, protect the unit parts from ingress of foreign objects. To prevent uncontrollable access to
the fans, the spigots may be covered with a protecting grille or other protecting device with mesh width not more than 12.5 mm.
While installing the unit, ensure convenient access for subsequent maintenance and repair. The unit must be mounted on a plane wall.
Installing the unit to an uneven surface could lead to the unit’s casing distortion and operation disturbance.
UNIT WALL MOUNTING UNIT FLOOR MOUNTING
Fasteners for wall mounting are not included in the delivery
set and should be ordered separately. While choosing fasteners
consider the material of the mounting surface as well as the weigh
of the unit, refer to the “Technical data”section.
Fasteners for unit installation should be selected by a qualified
technician.
Fix the wall mounting bracket at a required height and suspend
the unit on it.
Install the unit on the pre-mounted floor supports, minimum 150
mm height, to ensure sufficient access for the drain pipe connection
to the U-trap and for condensate drain system installation.
min 150 mmmin 150 mm
CONDENSATE DRAINAGE
Condensate drainage is required for the VUT V(1)B EC unit series. The hole for the drain pipe is at the bottom of the unit.
Remove the plug from the hole, open the service panel and install the drain pipe from the delivery set into the hole, then connect the
drain pipe to the sewage system using the SG-32 U-trap kit (available upon separate order).
min 3°
Drain hose
U-trap
Sewage system
Drain pipe
min 3°
Drain hose
U-trap
Sewage system
Drain pipe

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CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY OPERATIONS.
THE UNIT MUST BE CONNECTED TO POWER MAINS BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE SHOWN
ON THE RATING PLATE.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
The air-handling unit is rated for connection to single-phase AC 230 V / 50(60) Hz power mains. For electric installations use insulated
durable heat-resistant wires with the minimum wire cross section 1 mm2.
The external power input must be equipped with an automatic circuit breaker built into the stationary wiring to open the circuit in the
event of overload or short-circuit.
The external switch location must ensure free access for quick shutdown of the unit.
An exhaust kitchen hood may be optionally connected to the unit. The unit changes to maximum speed once the kitchen hood is turned
on and the dry contact is closed.
Route the cables to the control unit through the electric lead-ins on the top of the unit.
Connect the unit in compliance with the external wiring diagram to the terminal block X1 located in the control unit.
Accessing the control unit while power mains connection:
EXTERNAL WIRING DIAGRAM
141516171819
AE+
Gnd OutFCFC
13
B
12
Gnd
11
+12V
10
no
9
c
8
no
7 6 5
c
3
PE
2
N
1
LL
SM1
L N
SM2
L
2 1 2 1
N
Compressor and
condensing unit
(NO-contact)
BA
+12V
Gnd
Р1
no c
PK1
GndOut E+
TE1
Power input 230 VAC
t C
Х1 4
L L N LN
 ELECTRIC SHOCK HAZARD!
cno
KH
DESIGNATION NAME MODEL WIRE**
CCU* DX cooler NO 2 x 0,75 mm2
SМ1* Supply air damper actuator LF230 2 x 0,75 mm2
SМ2 * Extract air damper actuator LF230 2 x 0,75 mm2
РК1* Contact from fire alarm panel NO 2 x 0,75 mm2
Р1 Control panel
ТЕ1 Outdoor air temperature sensor
КН * Contact from kitchen hood NO 2 x 0,5 mm2
* Is not included in the delivery set.
** Maximum connecting cable length is 20 m!

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CONNECT THE HEATERS TO POWER SUPPLY PRIOR TO CONNECTING THE UNIT TO POWER SUPPLY!
If the unit is connected to power supply before connection of the heater(s) the control panel displays the following errors: DI1 and DI3
for NKP and DI1, DI3 and TE5 for EKH. To troubleshoot the errors turn the air handling unit off and restart it with the activated heater(s).
CONNECT THE UNIT TO POWER MAINS.
Connect the unit to power mains through the external automatic circuit breaker with a magnetic trip integrated into the fixed wiring
system. The position of the external automatic circuit breaker must ensure free access for quick power-off of the unit. The trip current
must be in compliance with the consumption current, refer to Technical data.
TECHNICAL MAINTENANCE
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE
ANY MAINTENANCE OPERATIONS!
Maintenance operations of the unit are required 3-4 times per year. They include general
cleaning of the unit and the following operations:
1. Filter maintenance (3-4 times per year).
Dirty filters increase air resistance in the system and reduce supply air volume. The filters
require cleaning not less than 3-4 times per year. Clean the filter with a vacuum cleaner
or replace it with a new one. For new filters, contact the Seller.
2. Heat exchanger maintenance (once per year).
Some dust may accumulate on the heat exchanger even in case of regular maintenance
of the filters. To maintain the high heat recovery efficiency, regular cleaning is required.
To clean the heat exchanger remove it from the unit and clean the heat exchanger by
using compressed air or a vacuum cleaner. After cleaning, re-install the heat exchanger
into the unit.
The steps to remove the filters and the heat exchanger are as follows (refer to the figure below):
3. Fan maintenance (once per year).
Even in case of regular maintenance of the filters, some dust may accumulate inside the fans and reduce the fan performance and supply
air flow. Clean the fans with a soft cloth, brush, or using compressed air. Do not use water, aggressive solvents, or sharp objects as they
may damage the impeller.
4. Condensate drainage system maintenance (4 times per year).
The supply duct grille may get clogged with leaves and other objects reducing the unit performance and supply air delivery.
Check the supply grille twice per year and clean it as required.
5. Supply air ow control (twice per year).
The supply duct grille may get clogged with leaves and other objects reducing the unit performance and supply air delivery. Check the
supply grille twice per year and clean it as required.
1
2
3

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6. Ductwork system maintenance (once in 5 years).
Even regular fulfilling of all the maintenance operations prescribed above may not completely prevent dirt accumulation in the air ducts,
which leads to air pollution and reduces the unit capacity. Duct maintenance means regular cleaning or replacement.
7. Control unit maintenance (if necessary).
The control unit is positioned inside the unit casing. To access the control unit, remove the fixing screws on the panel and remove the
control unit lid.
POSSIBLE REASONS AND TROUBLESHOOTING
Problem Possible reasons Troubleshooting
The fan(s) does not start
when the unit is on.
No power supply. Make sure the power supply line is connected correctly,
otherwise troubleshoot the connection error.
The motor is jammed, the impeller blades are soiled. Turn the unit off. Troubleshoot the motor jam and the
impeller clogging. Clean the blades. Restart the unit.
Alarm in the system. Turn the unit off. Contact the Seller.
Automatic circuit breaker
trips following the unit
turning on.
Overcurrent as a result of short circuit in the electric
circuit. Turn the unit off. Contact the Seller.
Low air flow.
Low set fan speed. Set higher speed.
The filters and the fans are clogged, the heat exchanger
is clogged.
Clean or replace the filters, clean the fans and the heat
exchanger.
Ventilation system elements (air ducts, diffusers, louver
shutters, grilles) are clogged, damaged, or closed.
Clean or replace the ventilation system elements, such as air
ducts, diffusers, louver shutters, grilles.
Cold supply air. The extract filter is soiled. Clean or replace the extract filter.
Noise, vibration.
The impeller(s) is soiled. Clean the impeller(s).
The fan or casing screw connection is loose. Tighten the screw connection of the fans or the casing all
the way.
No anti-vibration connectors on air duct pipe flanges. Install anti-vibration connectors.
Water leakage
(only for the VUT VB EC units)
The drainage system is soiled, damaged, or installed
incorrectly.
Clean the drain line. Check the drain line slope angle. Make
sure that the U-trap is filled with water and the drain pipes
are frost protected.
Displayed DI1 and DI3
errors on the control
panel. The error coding is
the same for both heaters.
Activated heating mode in the control panel with the
missing heater.
For error troubleshooting deactivate the heating mode.
If the errors are displayed after that please contact the product
Seller.
STORAGE AND TRANSPORTATION REGULATIONS
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range
from +5 ˚С up to +40 ˚С and relative humidity up to 70 %.
• Storage environment must not contain aggressive vapours and chemical mixtures provoking corrosion, insulation, and sealing
deformation.
• Use suitable hoist machinery for handling and storage operations to prevent possible damage to the unit.
• Follow the handling requirements applicable for the particular type of cargo.
• The unit can be carried in the original packaging by any mode of transport provided proper protection against precipitation and
mechanical damage. The unit must be transported only in the working position.
• Avoid sharp blows, scratches, or rough handling during loading and unloading.
• Prior to the initial power-up after transportation at low temperatures allow the unit to warm up at room temperature for at least 3-4
hours.

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MANUFACTURER’S WARRANTY
The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby
declare that the product complies with the provisions of Electromagnetic Council Directive 2014/30/EU, Low Voltage Directive 2014/35/
EU and CE-marking Directive 93/68/EEC. This certificate is issued following test carried out on samples of the product referred to above.
The manufacturer hereby warrants normal operation of the unit for 24 months after the retail sale date provided the user's observance
of the transportation, storage, installation, and operation regulations. Should any malfunctions occur in the course of the unit operation
through the Manufacturer's fault during the guaranteed period of operation, the user is entitled to get all the faults eliminated by the
manufacturer by means of warranty repair at the factory free of charge. The warranty repair includes work specific to elimination of faults
in the unit operation to ensure its intended use by the user within the guaranteed period of operation. The faults are eliminated by means
of replacement or repair of the unit components or a specific part of such unit component.
THE WARRANTY REPAIR DOES NOT INCLUDE:
• routine technical maintenance
• unit installation/dismantling
• unit setup
To benefit from warranty repair, the user must provide the unit, the user's manual with the purchase date stamp, and the payment
paperwork certifying the purchase. The unit model must comply with the one stated in the user’s manual. Contact the Seller for warranty
service.
THE MANUFACTURER’S WARRANTY DOES NOT APPLY TO THE FOLLOWING CASES:
• User’s failure to submit the unit with the entire delivery package as stated in the user’s manual including submission with missing
component parts previously dismounted by the user.
• Mismatch of the unit model and the brand name with the information stated on the unit packaging and in the user's manual.
• User’s failure to ensure timely technical maintenance of the unit.
• External damage to the unit casing (excluding external modifications as required for installation) and internal components caused
by the user.
• Redesign or engineering changes to the unit.
• Replacement and use of any assemblies, parts and components not approved by the manufacturer.
• Unit misuse.
• Violation of the unit installation regulations by the user.
• Violation of the unit control regulations by the user.
• Unit connection to power mains with a voltage different from the one stated in the user's manual.
• Unit breakdown due to voltage surges in power mains.
• Discretionary repair of the unit by the user.
• Unit repair by any persons without the manufacturer’s authorization.
• Expiration of the unit warranty period.
• Violation of the unit transportation regulations by the user.
• Violation of the unit storage regulations by the user.
• Wrongful actions against the unit committed by third parties.
• Unit breakdown due to circumstances of insuperable force (fire, flood, earthquake, war, hostilities of any kind, blockades).
• Missing seals if provided by the user’s manual.
• Failure to submit the user’s manual with the unit purchase date stamp.
• Missing payment paperwork certifying the unit purchase.
FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG AND
TROUBLEFREE OPERATION OF THE UNIT.
USER’S WARRANTY CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON
PRESENTATION OF THE UNIT, THE PAYMENT DOCUMENT AND THE USER’S MANUAL
WITH THE PURCHASE DATE STAMP.

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CERTIFICATE OF ACCEPTANCE
SELLER INFORMATION
INSTALLATION CERTIFICATE
WARRANTY CARD
Unit Type Heat and energy recovery air handling unit
Model VUT | VUE ____________ V________ ЕС А19
Serial Number
Manufacture Date
We hereby declare that the product complies with the protection requirements of Electromagnetic Council Directive 2014/30/EU, Low
Voltage Directive 2014/35/EU and CE-marking Directive 93/68/EEC on the approximation of the laws of the Member States relating to
electromagnetic compatibility. This certificate is issued following the test on the samples of the product referred to above.
Quality Inspector’s
Stamp
Seller
Address
Phone Number
E-mail
Purchase Date
This is to certify acceptance of the complete unit delivery with the user’s manual. The warranty terms are
acknowledged and accepted.
Customer’s Signature
Seller’s Stamp
Seller’s Stamp
Installation Company Stamp
The VUT | VUE ____________ V________ ЕС А19 heat and energy recovery air handling unit has
been connected to power mains pursuant to the requirements stated in the present user’s manual.
Company Name
Address
Phone Number
Installation Technician's
Full Name
Installation Date: Signature:
The unit has been installed in accordance with the provisions of all applicable local and national
construction, electrical, and technical codes and standards. The unit operates normally as intended by
the manufacturer.
Signature:
Unit Type Heat and energy recovery air handling unit
Model VUT | VUE ____________ V________ ЕС А19
Serial Number
Manufacture Date
Purchase Date
Warranty Period
Seller

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www.ventilation-system.com

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VUT/VUE V(1)(B) EC
www.ventilation-system.com

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www.ventilation-system.com

V106-1EN-08