Vents VUE 160 V EC A14 User manual

USER’S MANUAL
Heat/heat and humidity
recovery air handling unit
VUT V(B) EC A14
VUE V(B) EC A14

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CONTENTS
Safety requirements.............................................................................................................................. 2
Purpose .................................................................................................................................................... 4
Delivery set ............................................................................................................................................. 4
Designation key...................................................................................................................................... 4
Technical data ........................................................................................................................................ 5
Unit design and operating principle ............................................................................................... 6
Mounting and set-up............................................................................................................................ 8
Condensate drainage ........................................................................................................................... 12
Connection to power mains .............................................................................................................. 13
Unit control ............................................................................................................................................. 14
Technical maintenance ........................................................................................................................ 16
Troubleshooting .................................................................................................................................... 17
Storage and transportation regulations ......................................................................................... 17
Manufacturer's warranty ..................................................................................................................... 18
Acceptance certicate .......................................................................................................................... 19
Seller information ................................................................................................................................. 19
Connection certicate ......................................................................................................................... 19
Warranty card.......................................................................................................................................... 19
This user’s manual consisting of the technical details, operating instructions and technical specification covers the installation and mounting of
the heat recovery air handling unit series VUT V(B) EC A14 and of the heat and humidity recovery air handling unit series VUE V(B) EC A14 (hereinafter
«the unit» as mentioned in the «Safety Requirements» and «Manufacturer’s Warranty» sections as well as in warnings and information blocks).
SAFETY REQUIREMENTS
Read the user’s manual carefully prior to installing and operating the unit.
Fulfil 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!

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UNIT MOUNTING AND OPERATION SAFETY PRECAUTIONS
• Disconnect the unit from power mains prior to
any installation operations. • Unpack the unit with care.
• Do not lay the power cable of the unit in close
proximity to heating equipment.
• While installing the unit follow the safety
regulations specific to the use of electric tools.
• 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 COLLECTED SEPARATELY AT THE END OF SERVICE LIFE.
DO NOT DISPOSE OF AS UNSORTED MUNICIPAL WASTE.

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PURPOSE
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, cafes, 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 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.
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 favourable for the formation of hazardous substances (toxic substances, dust, pathogenic germs).
DELIVERY SET
Name Number
Air handling unit 1 item
User's manual 1 item
Control panel user's manual 1 item
Control panel 1 item
Mounting box for wall flush mounting 1 item
Mounting box for wall surface mounting 1 item
Drain pipe 1 item
Fastening kit 1 item
Packing box 1 item
DESIGNATION KEY
X X VXX EC A14
Motor type
electronically commutated
Control panel
Air capacity [m3/h]
Unit type
VUT — heat recovery air handling unit
VUE — heat and humidity recovery air handling unit
Spigot orientation
V — vertical spigot orientation
Extra components
_ — no extra components
B — bypass
Casing design

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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: IP22 for the assembled unit connected to the air ducts, IP44 for the unit motors.
The unit design is constantly being improved, so some models may be slightly different from those ones described in this manual..
Parameter
VUT/VUE 160
V EC A14
VUT/VUE 160
V1 EC A14
VUT/VUE 160
VB EC A14
VUT/VUE 160
V1B EC A14
VUT/VUE 350
VB EC A14
VUT/VUE 350
V1B EC A14
VUT/VUE 300
V2B EC A14
VUT/VUE 550
VB EC A14
VUT/VUE 550
V2B EC A14
Unit voltage [V/50(60) Hz] 1~ 230
Maximum unit power [W] 51 51 51 51 170 170 170 333 370
Maximum unit current [A] 0,4 0,4 0,4 0,4 1,3 1,3 1,3 2,3 2,5
Maximum air capacity [m3/h] 180 180 180 180 415 415 415 750 625
RPM 3770 3770 3770 3770 3200 3200 3200 3230 3230
Sound pressure level at 3 m distance [dB(A)] 24 22 24 22 28 28 30 28 28
Transported air temperature [°C] from -25 up to +60
Casing material painted steel
Insulation
20 mm
mineral
wool
40 mm
mineral
wool
20 mm
mineral
wool
40 mm
mineral
woo
40 mm
mineral
woo
40 mm
mineral
woo
20 mm
mineral
wool
40 mm
mineral
woo
20 mm
mineral
wool
Extract filter G4
Intake filter F7 (optionally G4)
Heat exchanger type counter-flow
Heat exchanger material polystyrene/enthalpy membrane
Connected air duct diameter [mm] Ø 125 Ø 125 Ø 125 Ø 125 Ø 160 Ø 160 Ø 160 Ø 200 Ø 200
Heat recovery efficiency [%] 88-98/80-94 88-98/80-94 88-98/80-94 88-98/80-94 80-89/76-89 84-94/74-90 85-93/76-90 85-88/72-92 73-88/71-92
Weight [kg] 42 47 44 49 66 55 53 83 62
ØD1
ØD
L
L1
H
B1
L2
B
H1
Model Dimensions [mm]
Ø DØ D1 BB1 HH1 LL1 L2
VUT/VUE 160 V EC A14 124 18 348 330 650 550 600 388 143
VUT/VUE 160 V1 EC A14 124 18 388 370 680 590 640 388 143
VUT/VUE 160 VB EC A14 124 18 348 330 690 580 600 388 143
VUT/VUE 160 V1B EC A14 124 18 385 370 690 620 640 388 143
VUT/VUE 350 VB EC A14 159 18 610 592 758 675 730 426 230
VUT/VUE 350 V1B EC A14 159 18 488 475 760 673 730 426 190
VUT/VUE 300 V2B EC A14 159 18 465 451 737 634 735 426 190
VUT/VUE 550 VB EC A14 198 18 741 722 758 675 828 493 284
VUT/VUE 550 V2B EC A14 198 18 566 550 737 634 810 493 259

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Control panel
R1,5
OUTOUT OUT IN
+RxTx
-
86
58
39
21
11,2
86
4
62,3
52
Voltage [V] 8 – 30
Temperature range from 0 °C up to +45 °C
Service life 100 000 switching
operations
Ingress protection IP30
Weight [g] 150
Humidity range [%] from 5 to 80 (no
condensation)
DESIGN AND OPERATING PRINCIPLE
Service panel
Inspection door
Control panel
Supply fan
Exhaust fan
*Bypass damper
Extract lter
Drain pan
Control unit
Drain pipe
Counterow heat exchanger
Intake lter
Freeze protection 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 mounting and wiring operations through the inspection door on top of the unit. For accessing the control unit
remove the service panel after mounting and wiring operations. The control unit is accessible for service operations through the hinged mounting
plate. The power cable and ground cable are connected to the control unit via the cable entries. 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.
The bypass damper is open or closed depending on operation mode of the unit.
*The bypass damper is available for the models: VUT/VUE ... V..B EC A14.
The humidity sensor is purchased separately as an accessory. The unit with an installed humidity sensor maintains a set indoor humidity point. As
the humidity level of the extract air reaches the set point, the unit switches to the maximum speed automatically. As the humidity drops down below
the set point the unit returns to the previous mode. Installation and connection of the humidity sensor as well as setting of the humidity level using the
software is carried out on site by a service technician. Speed and filter replacement period can be set using the software.
The software is available for downloading on our website: http://vents.ua/images/cat/812_2902_cat_file.rar.

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UNIT OPERATION MODES
Heat recovery
Warm extract air from the room flows into the unit and is cleaned in the extract filter. Then the air is moved through the heat exchanger and is
exhausted outside with 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 moved
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.
Defrosting mode
To prevent the heat exchanger freezing in the cold season the unit has an automatic Defrosting mode according to the freeze protection
temperature sensor readings in the exhaust air duct downstream of the heat exchanger. The unit switches to the Defrosting mode at the extract air
temperature +3 °C. As the temperature rises the unit returns to the previous mode. Only the extract fan operates in the Defrosting mode, the supply
fan is switched off.
Summer Cooling mode
The bypass damper is opened, the extract air that is removed from the premises bypasses the heat exchanger. The intake air temperature remains
constant. The Summer Cooling mode is set from the control panel, refer to the Unit control section.
Heat recovery Defrosting mode Summer Cooling mode
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
Service side view
INTAKE AIR
SUPPLY AIR
EXTRACT AIR
EXHAUST AIR
Back side view

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MOUNTING AND SETUP
THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED AND
HAVING THE REQUIRED TOOLS AND MATERIALS.
HV2 HUMIDITY SENSOR MOUNTING
The HV2 humidity sensor is not included in the scope of delivery and can be ordered separately.
Mounting of the HV2 sensor in the exhaust air duct
The HV2 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. Connect the humidity sensor connector to the
respective connector with the cable from the control unit, refer to the External wiring diagram. Connector with the cable from the control unit is installed
by the manufacturer.
Exhaust
air duct
Connector
for connection
to the control unit
HV2
humidity sensor
Mount
1
2
3
1
2
3
Connector for connection
to the humidity sensor
Indoor mounting of the HV2 sensor for the VUT/VUE 160 V1B EC A14
The HV2 sensor must be mounted in a room where the unit will maintain the set humidity level.
The sensor is fixed on the wall or ceiling surface using a screw or a double-sided adhesive tape. The mounting accessories are not included in the
scope of delivery.
To connect the sensor to the unit use a cable with a connector that is included in the delivery set of the sensor. The power cable is available separately.
Technical requirements for a cable: type — 3x0.25 mm2, length — up to 10 m.
The HV2 sensor must be connected according to the external devices wiring diagram.
1
2
3
Cable
with a connector for connection
to the humidity sensor
70 mm 28 mm
0-10
1
GND
2
+U
3
SERVICE SIDE CHANGE
Make sure of the correct unit service side selection. Unit mounting position should enable free excess to the service panel for maintenance and
service operations.
INTAKE AIRSUPPLY AIR
EXTRACT AIR EXHAUST AIR
Left-handed modication
INTAKE AIR
EXHAUST AIR
SUPPLY AIR
EXTRACT AIR
Right-handed modication

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Service side change before unit mounting:
1
3
2
4

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UNIT MOUNTING
To attain the best performance of the unit and to minimise turbulence-induced air pressure losses connect the straight air duct section to the spigots
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 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. Mounting of
the unit to an uneven surface can lead to the unit casing distortion and operation disturbance.
Unit wall mounting.
Fasteners for wall mounting are not included in delivery 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 theTechnical Data
section. Fasteners for unit mounting should be selected by the Customer
Service technician.
Fix the wall bracket on the desired level and hang the unit on it.
Unit oor mounting.
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 mounting.
min 150 mm