Vents VKV EC User manual

USER’S MANUAL

VKV EC

VKH EC

Centrifugal roof fan

VKV EC/VKH EC

www.ventilation-system.com

CONTENTS

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 VKV EC/VKH 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.

Safety requirements ................................................................................................................................................................... 3

Purpose................................................................................................................................................................................................ 5

Delivery set........................................................................................................................................................................................ 5

Designation key.............................................................................................................................................................................. 5

Technical data.................................................................................................................................................................................. 6

Design and operating principle........................................................................................................................................... 7

Mounting and set-up.................................................................................................................................................................. 7

Connection to power mains .................................................................................................................................................. 8

Technical maintenance.............................................................................................................................................................. 10

Troubleshooting............................................................................................................................................................................. 12

Storage and transportation regulations.......................................................................................................................... 12

Manufacturer’s warranty........................................................................................................................................................... 13

Certiﬁcate of acceptance.......................................................................................................................................................... 14

Seller information.......................................................................................................................................................................... 14

Installation certiﬁcate.................................................................................................................................................................. 14

Warranty card................................................................................................................................................................................... 14

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SAFETY REQUIREMENTS

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.

Disconnect the unit from the power supply prior to any connection, servicing, maintenance, and

repair operations.

Only qualied electricians with a work permit for electrical units up to 1000 V are

allowed for installation. The present user’s manual should be carefully read before

beginning works.

Check the unit for any visible damage of the impeller, the casing, and the grille before starting

installation. The casing internals must be free of any foreign objects that can damage the

impeller blades.

While mounting the unit, avoid compression of the casing! Deformation of the casing may result

in motor jam and excessive noise.

Misuse of the unit and any unauthorised modiﬁcations are not allowed.

Transported air must not contain any dust or other solid impurities, sticky substances, or ﬁbrous

materials.

Do not use the unit in a hazardous or explosive environment containing spirits, gasoline,

insecticides, etc.

Do not close or block the intake or extract vents in order to ensure the eﬃcient air ﬂow.

Do not sit on the unit and do not put objects on it.

The information in this user’s manual was 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.

Never touch the unit with wet or damp hands.

Never touch the unit when barefoot.

VKV EC/VKH EC

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This unit is not intended for use by persons (including children) with reduced physical, sensory

or mental capabilities, or lack of experience and knowledge, unless they have been given

supervision or instruction concerning use of the unit by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the unit.

Connection to the mains must be made through a disconnecting device, which is integrated

into the ﬁxed wiring system in accordance with the wiring rules for design of electrical units,

and has a contact separation in all poles that allows for full disconnection under overvoltage

category III conditions.

Ensure that the unit is switched oﬀ from the supply mains before removing the guard.

Precautions must be taken to avoid the back-ﬂow of gases into the room from the open ﬂue of

gas or other fuel-burning appliances.

THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.

DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.

The fan is connected to the ventilation duct by means of a counter ﬂange, which is attached

directly to the fan base (see «Mounting and set-up»).

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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 UNAUTHORISED

ACCESS BY UNATTENDED CHILDREN.

PURPOSE

DELIVERY SET

DESIGNATION KEY

NAME NUMBER

Fan 1 pc.

User’s manual 1 pc.

Packing box 1 pc.

The VKV EC/VKH EC roof fans in metal casing are designed for ventilation systems in industrial premises as well as pools, apartment

buildings, oﬃces, hospitals, restaurants and other premises heated during the winter season.

The fan is mounted on the external exhaust shaft of the air duct and is used only for exhaust ventilation.

Designation example: VKV zEC 310 RT

Centrifugal roof fan

VKV – with vertical air discharge

VKH – with horizontal air discharge

Casing material

z – galvanized steel

_ – polymer-coated steel

A – aluminium

Electric heater type

EC – electronically commutated

Turbine standard size [mm]

Options

RT – integrated pressure diﬀerential regulator

RV – integrated constant air ﬂow regulator

S1 – built-in external switch

VKV EC/VKH EC

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TECHNICAL DATA

The unit is rated as a Class I electrical appliance.

VKV EC

ØD

4xød

6xM

Model Overall and connecting dimensions [mm] Weight

[kg]

Ø D ø d M A H L L1 L2

VKV 190 EC 213 9 M6 417 166 355 245 470 7

VKV 225 EC 213 9 M6 417 210 355 245 470 7

VKV 250 EC 285 11 M6 481 236 425 330 534 11

VKV 280 EC 285 11 M6 547 274 425 330 600 14

VKV 310 EC 285 11 M6 613 296 477 330 666 20

VKV 355 EC 438 11 M8 738 326 598 450 791 23

VKV 400 EC 438 11 M8 738 371 598 450 791 25

VKV 450 EC 438 11 M8 738 425 668 535 791 44

VKV 500 EC 438 11 M8 859 456 668 535 912 52

VKV 560 EC 605 11 M8 859 478 850 750 912 65

VKV 630 EC 605 20 M8 951 530 939 750 1004 83

VKH EC

ØD

4xød

6xM

L1

Model Overall and connecting dimensions [mm] Weight

[kg]

Ø D ø d M H H1 A L L1

VKH 190 EC 213 11 M6 189 195 351 350 245 8

VKH 225 EC 213 11 M6 234 241 351 350 245 8

VKH 250EC 285 11 M6 237 244 451 450 330 13

VKH 280 EC 285 11 M6 263 270 451 450 330 13

VKH 310 EC 285 11 M6 263 270 451 450 330 16

VKH 355 EC 438 11 M8 322 361 625 620 450 27

VKH 400 EC 438 11 M8 384 422 625 620 450 27

VKH 450 EC 438 11 M8 420 459 710 700 535 46

VKH 500 EC 445 11 M8 467 506 710 700 535 51

VKH 560 EC 605 11 M8 489 528 900 895 750 71

VKH 630 EC 600 20 M8 520 560 1000 990 750 101

Parameter

VKV/VKH 190 EC

VKV/VKH 225 EC

VKV/VKH 250 EC

VKV/VKH 280 EC

VKV/VKH 310 EC

VKV/VKH 355 EC

VKV/VKH 400 EC

VKV/VKH 450 EC

VKV/VKH 500 EC

VKV/VKH 560 EC

VKV/VKH 630 EC

Unit voltage [V/50 (60) Hz] 1~ 230 1~ 230 1~ 230 1~230 1~230 1~230 1~230 3~400 3~400 3~400 3~400

Power [W] 102 101 161 182 391 669 526 1323 1350 2412 2973

Current [A] 0.77 0.80 1.29 1.34 1.72 9.36 3.90 3.27 2.08 3.83 4.66

Maximum air ﬂow [m³/h] 670 1 290 1 470 2 330 3 100 3 830 5 380 8 110 10 900 13 640 18 270

RPM [min-1] 3520 2400 3300 2610 2600 1550 1450 1560 1480 1540 1450

Sound pressure level at 3 m distance

[dBA] 52 47 54 48 49 51 58 63 67 69 71

Transported air temperature [°C] -25…+60 -25…+60 -25…+60 -20…+60 -20…+60 -25…+50 -25…+50 -20…+60 -25…+50 -25…+60 -25…+55

Motor protection rating IP54 IP54 IP54 IP44 IP54 IP54 IP54 IP54 IP55 IP54 IP54

Product protection rating IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4 IPX4

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Depending on the model the fan casing is made of polymer coated steel, aluminium or galvanized steel.The units feature electronically

commutated (EC) direct current motors with an external rotor and centrifugal impellers with backward curved blades. EC motor is

free of friction and wear parts such as a commutator and brushes. These components are replaced by a maintenance-free electronic

circuit board.

DESIGN AND OPERATING PRINCIPLE

• Fans are designed for horizontal mounting on a ﬂat roof directly above an air duct or a ventilation shaft.

• In order to avoid ingress of water and snow into the ventilation duct, it is possible to install a fan on the mounting frame.

• The fan is connected to the ventilation duct by means of a counter ﬂange, which is attached directly to the fan base.

• The fan base has holes for ﬁxing bolts that attach the fan to a stationary even surface or to a mounting frame.

• In the VKV 225 EC, VKV/VKH 500 EC, VKV/VKH 630 EC models the counter ﬂange is attached together with the fan inlet ring.

• A mounting frame, a counter ﬂange and mounting bolts are not included in the delivery set and must be purchased separately.

VKH EC

VKV EC

MOUNTING AND SETUP

WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT

MAINTENANCE AND REPAIR.

BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN

OBJECTS E.G. FOIL, PAPER.

VKV EC/VKH EC

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Electrical connection is made on the terminal block located in the remote or integrated terminal box of the electric motor.

The terminal designations are shown on the label inside the fan casing.

ACCESS TO THE TERMINAL BLOCK VKH EC

ACCESS TO THE TERMINAL BLOCK VKV EC

CONNECTION TO POWER MAINS

DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.

CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED

ELECTRICIAN WITH A WORK PERMIT FOR THE ELECTRIC UNITS UP TO 1000 V AFTER

CAREFUL READING OF THE PRESENT USER’S MANUAL.

THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE

MANUFACTURER’S LABEL.

• The unit is rated for connection to power mains with the parameters speciﬁed in the «Technical speciﬁcations» section, according to

the wiring diagram.

• The unit must be connected to power mains using insulated electric conductors (cables, wires). The actual wire cross section selection

must be based on the maximum load current, maximum conductor temperature depending on the wire type, insulation, length and

installation method.

• The external power input must be equipped with an automatic circuit breaker built into the stationary wiring to open the electric

circuit in case of overload or short-circuit. The circuit breaker installation place must provide quick access for emergency shutdown

of the unit. The trip current of the automatic circuit breaker QF must exceed the maximum current consumption of the unit (refer

to the technical data table). The recommended trip current of the circuit breaker is the next current in the standard trip current row

following the maximum current of the connected unit. The automatic circuit breaker is not included in the delivery set.

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Power supply parameters and examples of wiring diagrams depending on the unit model

~230 V

50 (60) Hz

VKV/VKH 190 EC

VKV/VKH 225 EC

VKV/VKH 250 EC

VKV/VKH 280 EC

VKV/VKH 310 EC

VKV/VKH 355 EC

VKV/VKH 400 EC

3L3

+1 V

Tacho

+10V

CRT

GND

Tacho

3L3

Tacho

+10 0V

CRT

GND

Tacho

0-10V

~400 V

50 (60) Hz

+10V+10V

0-10V

GND

CRT

GND

0-10V

GND

CRT

GND

~400 V

50 (60) Hz

VKV/VKH 500 EC

VKV/VKH 450 EC VKV/VKH 560 EC

VKV/VKH 630 EC

Model Recommended cable, nxS, where n is the number of wires, and S is the cross section in mm

VKV/VKH 190...400 EC 3 x 1,0

VKV/VKH 450 EC 5 x 0,75

VKV/VKH 500...630 EC 5 x 1,5

VKV EC/VKH EC

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• The technical maintenance includes periodic cleaning of the surfaces from accumulated dust and dirt.

• When carrying out fan maintenance, it is necessary to partially disassemble it in order to access contaminated parts of the fan.

• The impeller blades require thorough cleaning once in 6 months.

• Use a soft dry cloth, brush or compressed air to remove dust.

• Carry out wet cleaning using warm water and a mild household detergent.

• Protect the electric motor against liquid ingress.

• Do not immerse the unit in water!

• Do not use aggressive solvents, or sharp objects as they may damage the impeller.

VKH EC

VKV 400 EC, VKV 450 EC, VKV 500 EC, VKV 560 EC, VKV/VKH 630 EC

DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE

OPERATIONS!

MAKE SURE THE UNIT IS DISCONNECTED FROM POWER MAINS BEFORE REMOVING THE

PROTECTION

TECHNICAL MAINTENANCE

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