Vents VKM EC User manual

VKM EC
Centrifugal inline fan
USER’S MANUAL

2
VKM EC
www.ventilation-system.com
CONTENTS
This user’s manual is the primary operating document intended for technical, maintenance and operations staff.
The manual contains information about purpose, technical details, operating principle, design, and installation of the centrifugal inline
fan VKM EC and all its modifications.
Technical and maintenance staff must have proper theoretical knowledge and practical training specific to ventilation systems as well as
the necessary skills to carry out the work in accordance with labour safety and construction regulations and standards applicable in the
respective territory.
The information provided in the present document is true as at the document preparation.
Due to the continuous product development the company reserves the right to update the technical specifications, design or delivery
package of its products.
No part of the present publication may be reproduced, uploaded or saved in reference-providing information systems or translated into
other languages in any form whatsoever without the company’s prior written consent.
Safety requirements..................................................................................................................................................................... 3
Purpose................................................................................................................................................................................................ 5
Delivery set........................................................................................................................................................................................ 5
Designation key ............................................................................................................................................................................ 5
Technical data.................................................................................................................................................................................. 6
Installation and set-up................................................................................................................................................................ 7
Connection to power mains .................................................................................................................................................. 9
Maintenance .................................................................................................................................................................................... 11
Storage and transportation regulations.......................................................................................................................... 12
Manufacturer’s warranty........................................................................................................................................................... 13
Certificate of acceptance ........................................................................................................................................................ 14
Seller information ......................................................................................................................................................................... 14
Installation certificate.................................................................................................................................................................. 14
Warranty card................................................................................................................................................................................... 14

3
www.ventilation-system.com
SAFETY REQUIREMENTS
• 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.
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.
• 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.

4
VKM EC
www.ventilation-system.com
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
• 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.

5
www.ventilation-system.com
PURPOSE
The product described herein is a centrifugal inline fan VKM EC for ventilation of small and medium domestic premises.
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 favourable for the formation of hazardous substances (toxic substances, dust,
pathogenic germs).
DELIVERY SET
NAME QUANTITY
Fan 1 pc.
Fixing bracket 2 pcs.
User’s manual 1 pc.
Packing box 1 pc.
DESIGNATION KEY
VKM XEC X
Variants
Q: low-power motor
For diameters 100-315:
R1: power cord with mains plug
P: integrated smooth speed controller
Un: speed controller with an electronic thermostat and an external temperature sensor fixed on
a 4-meter cable. Temperature-based operation logic
U1n: speed controller with an electronic thermostat and an external temperature sensor fixed
on a 4-meter cable. Timer-based operation logic
U2n: speed controller with an electronic thermostat and an external temperature sensor fixed
on a 4-meter cable. Temperature-based switching on/off
Motor type
EC: electronically commutated motor
Exhaust spigot diameter [mm]
Fan series
VKM: centrifugal fan enclosed in a metal casing
VKMS: centrifugal fan enclosed in a metal casing with a high-power motor
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.
THE UNIT CAN BE USED IN KITCHEN SPACES ONLY IF THERE IS A GREASE FILTER.
INSTALL A KITCHEN HOOD WITH A GREASE FILTER IF AIR IS EXTRACTED FROM THE
COOKING SURFACE.

6
VKM EC
www.ventilation-system.com
TECHNICAL DATA
The fan is designed for indoor or sheltered application at ambient temperature from -25 °C up to +40 °C and relative humidity up to 80 %.
The unit is rated as a class I electric appliance.
Ingress protection rating against access to hazardous parts and water ingress is IPX4.
The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
L
øD1
B
B1
L2
L3
L1
HøD
Terminal box
Casing
Impeller
EC motor
Fixing bracket
ø6
4
holes
TECHNICAL DATA
VKM100 EC VKM 125 EC VKM 150 EC VKM 160 EC VKM 200 EC VKMS 200 EC VKM 250 EC Q VKM 250 EC VKM 315 EC
Power supply voltage, 50 (60) Hz [V] 1~230
Max. power consumption [W] 90 83 107 108 83 100 100 164 164
Current consumption [A] 0.70 0.58 0.89 0.90 0.63 0.74 0.74 1.15 1.15
Air capacity [m3/h] 345 480 700 785 845 1010 985 1230 1370
Noise level, 3 m [dBA] 44 45 48 48 47 48 44 46 48
Transported air temperature [˚C] -25...+60
SEC class B
D D1 H B B1 L L1 L2 L3
VKM100 EC 98 255 340 310 270 203 20 25 30
VKM 125 EC 123 255 340 310 270 203 20 25 30
VKM 150 EC 149 305 365 360 320 220 25 25 30
VKM 160 EC 159 305 365 360 320 220 25 25 30
VKM 200 EC 198 345 435 395 355 245 25 30 40
VKMS 200 EC 198 345 435 395 355 255 25 30 40
VKM 250 EC (Q) 248 345 435 395 355 250 25 30 40
VKM 315 EC 314 405 465 455 415 260 30 30 40

7
www.ventilation-system.com
INSTALLATION AND SETUP
The air motion in the system must be as shown with the pointer of the fan casing.
In case of the vertical installation the intake spigot must be protected with a ventilation hood.
To attain the best performance of the fan and to minimise turbulence-induced air pressure losses while mounting, connect straight air
duct sections to the fan spigots on both sides of the fan.
Minimum straight air duct length:
• equal to 1 air duct diameter on intake side
• equal to 3 air duct diameters on outlet side
min 1D min 3D
D
If the air ducts are too short or not connected at any spigot, protect the fan inner parts from ingress of foreign objects by installing a
protecting grille or other protecting device with mesh width not more than 12.5 mm to prevent uncontrollable access to the fans.
While installing the fan ensure convenient access for subsequent maintenance and repair.
The unit must be mounted on a an even wall.
BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN
OBJECTS E.G. FOIL, PAPER.

8
VKM EC
www.ventilation-system.com
INSTALLATION STEPS
Disconnect the fan from power supply Install the fixing brackets
Lean the fan against the installation place and mark the fastening
holes
Drill the holes and insert the expansion anchors
Fix the fan Connect air ducts

9
www.ventilation-system.com
CONNECTION TO POWER MAINS
The unit is rated for connection to single-phase ac 230 V/ 50 (60) Hz power mains. For electric installations use insulated durable heat-
resistant conductors (cables, wires) with the minimum wire cross section 0.75 mm2. The conductor cross section value must be selected
depending on the wire type, maximum permissible heating temperature, insulation, length and installation method.
Connect the fan to power mains via an external automatic circuit breaker installed at the power input and integrated in the house cabling
to open the circuit in case of short circuit or overload.
The circuit breaker location must provide quick access for emergency shutdown of the fan.
The fan is connected to the terminal box attached to the fan casing in compliance with the wiring diagram and designation of terminals.
The terminal designation is shown on the sticker attached to the internal wall of the terminal block.
THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED
AND HAVING THE REQUIRED TOOLS AND MATERIALS.
ACCESS TO THE TERMINAL BOX
Disconnect the fan from power supply Unscrew the 4 screws that fix the terminal box lid
Route the cables through the cable gland and complete electric
connection
Reinstall the terminal box lid
The fan can be equipped with a power cord with an IEC C14 connector. The fan is rated for continuous operation.
Thermostat
control knob
Speed
control knob
Speed
control knob
Un, U1n, U2n P

10
VKM EC
www.ventilation-system.com
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
EXTERNAL WIRING DIAGRAMS
ELECTRONICS OPERATION ALGORITHM
The Un/U1n/U2n fan is equipped with an electronic module TSC (speed controller with an electronic thermostat) for automatic speed
control (air flow) depending on the air temperature.
The terminal compartment incorporates 2 control knobs:
• presetting speed
• setting electric thermostat threshold value
The fan is equipped with two indicators:
• temperature sensor indicator (hereinafter referred to as TSI) - yellow colour
• motor control indicator (hereinafter referred to as MCI) - green/red colour
When the fan turns on, the TSI indicates the unit operation algorithm:
• one pulse  Un
• two pulses – U1n
• three pulses – U2n
The MCI lights up in green when the motor rotates and in red when it stops (or rotates very slowly).
To set the thermostat threshold, rotate the thermostat control knob clockwise to increase or counter-clockwise to decrease the
temperature set point.
To set the fan speed (air flow), rotate the speed control knob in the same way.
UN: In this case, fan speed switching operations are rare.
The TSI lights up and the fan switches to the maximum speed as the room air temperature exceeds the set point.
As the air temperature drops 2 °C below the set point or if the initial temperature is below the set point, the TSI goes out and the fan
operates with the set speed.
U1N: The speed switching operations are more frequent as compared to the temperature-based functioning logic (U), but one speed
interval continues at least 5 minutes.
The TSI lights up and the fan switches to the maximum speed as the room air temperature exceeds the set point.
As the air temperature drops down below the set point, the TSI starts blinking, the timer starts a 5-minute countdown and then the fan
switches to the set lower speed and the TSI goes out.
U2N: The fan starts only at a certain air temperature.
The TSI lights up and the fan switches to the set speed as the room air temperature exceeds the set point.
As the air temperature drops 2 °C below the set point or if the initial temperature is below the set point, the TSI goes out and the fan
turns off.
X
N
L
QF
X
S
N
L
QF
N
L
N
L
DESIGNATIONS ON DIAGRAMS:
L— line; N— neutral; QF — circuit breaker; S— external switch; X— input terminal.
Diagram 1.
Connect the fan to power mains
Diagram 2.
Connect the fan to power mains with an
external switch

11
www.ventilation-system.com
MAINTENANCE
Technical maintenance means regular cleaning of the unit surfaces of dust. Use a soft brush or compressed air to remove dust.
Clean the impeller blades at least every 6 months.
Installation of an air filter prolongs the interval between the cleaning, to perform the cleaning first remove the screws and the fan cover.
Wipe the impeller blades with a cloth wetted in a mild detergent solution. Avoid water dripping on the electric motor!
After cleaning of the impeller install the cover and tighten the screws.
TECHNICAL MAINTENANCE STEPS
CUT OFF POWER SUPPLY BEFORE ANY OPERATIONS ARE PERFORMED.

12
VKM EC
www.ventilation-system.com
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 (+41 ˚F) to +40 ˚С (+104 ˚F) and relative humidity up to 70 %.
• Storage environment must not contain aggressive vapors 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 operating temperature for at
least 3-4 hours.

13
www.ventilation-system.com
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 Compatibility (EMC) Directive 2014/30/EU of the European
Parliament and of the Council, Low Voltage Directive (LVD) 2014/35/EU of the European Parliament and of the Council and CE-marking
Council 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.

14
VKM EC
www.ventilation-system.com
SELLER INFORMATION
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
INSTALLATION CERTIFICATE
Installation Company Stamp
The VKM ____________ EC unit is installed pursuant to the requirements stated in the present user’s
manual.
Seller
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:
WARRANTY CARD
Seller’s Stamp
Unit Type Centrifugal inline fan
Model VKM _________________ EC
Serial Number
Manufacture Date
Purchase Date
Warranty Period
Seller
CERTIFICATE OF ACCEPTANCE
Unit Type Centrifugal inline fan
Model VKM _____________ EC
Serial Number
Manufacture Date
Quality Inspector’s
Stamp
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 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.

15
www.ventilation-system.com

V88EN-05