Vents VKV Series User manual

USER'S MANUAL
ROOF FANS
VENTS VKV \ VKH \ VKV EC \ VKH EC \ VKMK \ VKMKp \ VOK \ VOK1 SERIES

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Purpose...................................................................................................................................
Delivery set............................................................................................................................
Designation key...................................................................................................................
Technical data ......................................................................................................................
Safety requirements..........................................................................................................
Installation and set-up......................................................................................................
Connection to power mains...........................................................................................
Storage regulations............................................................................................................
Technical maintenance.....................................................................................................
Manufacturer's warranty .................................................................................................
Certicate of acceptance.................................................................................................
Warranty card.......................................................................................................................
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CONTENTS

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The VENTS VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1 fans in metal casing with
inlet diameter from 220 to 500 mm and from 250 mm to 560 mm for VKV EC and VKH EC
models, hereinafter referred to as fans, are designed for ventilation of various industrial
premises, pools, apartment buildings, oces, hospitals, restaurants, and other premises
heated in winter time.
The transported air must not contain dust, solid particles, sticky and brous materials.
The ambient temperature must not exceed the values stated in the Technical data sec-
tion.
The fan is suitable for vertical mounting on the exhaust ventilation shaft and is used for
exhaust ventilation only.
The unit is rated for continuous operation.
The unit is rated as a Class I electrical appliance.
Ingress protection rating is IPX4.
The delivery set includes:
– Fan
– User's manual
– Packing
PURPOSE
DELIVERY SET
THE PRODUCT MUST BE DISPOSED SEPARATELY
AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.

4
DESIGNATION KEY
XXX X X XXX
Fan designation:
VKV – centrifugal roof fan with vertical air discharge
VKH – centrifugal roof fan with horizontal air discharge
VOK – axial roof fan with horizontal air discharge
Number of motorpoles:
E– single-phase
D – three-phase
Impeller diameter [mm]:
200; 220; 225; 250; 280; 300;
310; 350; 355; 400; 450; 500
2, 4, 6.
XXX XXX XX
VKV – centrifugal roof fan with vertical air discharge
VKH – centrifugal roof fan with horizontal air discharge
Fan designation:
Impeller diameter [mm]:
250; 280; 310; 355; 400; 450; 500; 560
Motor type:
EC – electronically commutated
Designation key of the VKV EC, VKH EC fans
Designation key of the VKV, VKH, VOK fans

5
XXX XXX
Fan designation:
VKMK – centrifugal roof fan with a round cover
VKMKp – centrifugal roof fan
with a round cover and a base plate
VOK1 – axial roof fan with a round cover
Impeller diameter [mm]:
150; 200; 250; 315
Designation key of the VKMK, VKMKp, VOK1 fans
Designation key example:
VKV 2E 280 – centrifugal roof fan with vertical air discharge, a two-pole single-phase
electric motor and a Ø 280 mm impeller.
VKV 280 EC – centrifugal roof fan with vertical air discharge, an EC electric motor and a
Ø 280 mm impeller.
VKH 4E 310 – centrifugal roof fan with horizontal air discharge, a 4-pole single-phase
electric motor and a Ø 310 mm impeller.
VKMK 200 – centrifugal roof fan with a Ø 200 mm intake ange.
VKMKp 150 – centrifugal roof fan with a base plate and Ø 150 mm intake ange.

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Model
Dimensions [mm]
Weight [kg]
DH L2 L1 L
VKV 2E 220 213 275 460 245 338 8.9
VKV 2E 225 213 275 460 245 338 9.6
VKV 2E 250 285 275 520 330 425 12.0
VKV 2E 280 285 275 520 330 425 12.7
VKV 4E 310 285 330 560 330 438 17.8
VKV 4D 310 285 330 560 330 438 17.8
VKV 4E 355 438 420 783 450 598 22.0
VKV 4D 355 438 420 783 450 598 22.0
VKV 4E 400 438 420 783 450 598 27.5
VKV 4E 450 438 454 872 535 668 30.0
VKV 4D 400 438 420 783 450 598 27.5
VKV 4D 450 438 454 872 535 668 30.0
VKV 6E 500 438 454 872 535 668 33.8
VKVVKH
Model
Dimensions [mm]
Weight [kg]
D d H L L1 L2
VKH 2E 220 213 10 228 338 245 338 6.9
VKH 2E 225 213 10 228 338 245 338 7.1
VKH 2E 250 285 10 265 425 330 365 10.1
VKH 2E 280 285 10 265 425 330 365 10.2
VKH 4E 310 285 10 300 438 330 400 10.2
VKH 4D 310 285 10 300 438 330 400 10.2
VKH 4E 355 438 12 348 598 450 550 15.6
VKH 4D 355 438 12 325 598 450 550 15.6
VKH 4E 400 438 12 348 598 450 550 21.0
VKH 4E 450 438 12 400 668 535 640 22.7
VKH 4D 400 438 12 323 598 450 550 22.0
VKH 4D 450 438 12 400 668 535 640 22.7
VKH 6E 500 438 12 465 668 535 640 26.6
Fan overall dimensions:
TECHNICAL DATA

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VKV / VKH
4E 310
VKV / VKH
4D 310
VKV / VKH
4E 355
VKV / VKH
4D 355
Voltage [V] 1~ 220-240 3~ 400 1~ 220-240 3~ 400
Frequency [Hz] 50 60 50 60 50 60 50 60
Power [W] 120 183 110 172 245 305 170 235
Current [A] 0.54 0.79 0.32 0.32 1.12 1.34 0.52 0.5
Maximum air ow [m/h] 1820 1880 1950 2030 2800 2920 2350 2570
RPM [min-1] 1370 1420 1400 1480 1420 1530 1400 1600
Sound pressure level at a distance of 3 m
[dBA] 45 46 53 54 46 49 53 55
Max. transported air temperature [°] 85 50 65 50 50 50 70 50
Ingress protection rating IPX4 IPX4 IPX4 IPX4
VKV / VKH
2E 220
VKV / VKH
2E 225
VKV / VKH
2E 250
VKV / VKH
2E 280
Voltage [V] 1~ 220-240 1~ 220-240 1~ 220-240 1~ 220-240
Frequency [Hz] 50 60 50 60 50 60 50 60
Power [W] 85 111 135 142 155 265 225 348
Current [A] 0.38 0.44 0.6 0.65 0.7 1.15 1.0 1.51
Maximum air ow [m/h] 700 815 900 940 1300 1480 1780 1855
RPM [min-1] 2700 2810 2650 2830 2600 2640 2700 2790
Sound pressure level at a distance of 3 m
[dBA] 49 51 49 51 65 70 66 69
Max. transported air temperature [°] 55 50 55 50 50 50 50 50
SEC class* B B B B - - - -
Ingress protection rating IPX4 IPX4 IPX4 IPX4
*The EC norm 1254/2014 does not apply if maximum air capacity is >1000 m/h
VKV / VKH
4E 400
VKV / VKH
4D 400
VKV / VKH
4E 450
VKV /
VKH
4D
450
VKV / VKH
6E 500
Voltage [V] 1~ 220-240 3~ 400  3~ 400 Y 1~ 220-240 400 Y 1~ 220-240
Frequency [Hz] 50 60 50 60 50 60 50 50 50 60
Power [W] 480 665 515 750 385 515 640 470 385 475
Current [A] 2.4 2.99 1.41 1.44 0.7 0.93 3.1 0.82 1.82 2.1
Maximum air ow [m/h] 3400 3500 3950 4200 3800 3850 3850 4300 4700 5130
RPM [min-1] 1400 1480 1415 1610 1430 1420 1350 1430 880 850
Sound pressure level at a distance of
3 m [dBA] 52 53 59 62 52 53 53 53 47 49
Max. transported air temperature [°] 80 50 -40
+60
-40
+60
-40
+60
-40
[phone]
Ingress protection rating IPX4 IPX4 IPX4 IPX4 IPX4 IPX4
Technical data:

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VKV ЕСVKH ЕС
Fan overall dimensions:
Model
Dimensions [mm]
Weight [kg]
D d H L L1 L2
VKH 250  285 11 289 435 330 411 16
VKH 280  285 11 264 435 330 431 16
VKH 310  285 11 272 435 330 431 19
VKH 355  438 11 326 595 450 558 38
VKH 400  438 11 357 595 450 558 81
VKH 450  438 11 407 665 535 637 82
VKH 500  438 11 437 665 535 637 81
VKH 560  605 14 487 940 750 912 98
Model
Dimensions [mm]
Weight [kg]
DH L L1 L2
VKV 250  285 320 435 330 528 16
VKV 280  285 327 435 330 557 18
VKV 310  285 327 435 330 557 21
VKV 355  438 387 595 450 708 38
VKV 400  438 387 595 450 708 82
VKV 450  438 464 665 535 898 84
VKV 500  438 464 665 535 898 88
VKV 560  605 560 940 750 1150 98

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Technical data:
VKV / VKH
250 ЕС
VKV / VKH
280 ЕС
Unit voltage [V/50 (60) Hz] 1~ 200-277 1~ 200-277
Power [kW] 0.485 0.455
Current [A] 3.0 2.8
Maximum air ow [m/h] 1750 2650
RPM [min-1] 3580 2600
Sound pressure level at a distance of 3 m [dBA] 47 47
Max. transported air temperature [°] -25 +60 -25 +40
Ingress protection rating IPX4 IPX4
VKV / VKH
310 ЕС
VKV / VKH
355 ЕС
Unit voltage [V/50 (60) Hz] 1~ 200-277 3~ 380-480
Power [kW] 0.48 0.94
Current [A] 3.1 1.5
Maximum air ow [m/h] 3220 4500
RPM [min-1] 2300 2215
Sound pressure level at a distance of 3 m [dBA] 48 51
Max. transported air temperature [°] -25 +60 -25 +60
Ingress protection rating IPX4 IPX4
VKV / VKH
400 ЕС
VKV / VKH
450 ЕС
Unit voltage [V/50 (60) Hz] 3~ 380-480 3~ 380-480
Power [kW] 0.77 1.01
Current [A] 1.3 1.6
Maximum air ow [m/h] 5360 6700
RPM [min-1] 1755 1560
Sound pressure level at a distance of 3 m [dBA] 53 55
Max. transported air temperature [°] -25 +60 -25 +60
Ingress protection rating IPX4 IPX4
VKV / VKH
500 ЕС
VKV / VKH
560 ЕС
Unit voltage [V/50 (60) Hz] 3~ 380-480 3~ 380-480
Power [kW] 2.7 2.3
Current [A] 4.3 3.6
Maximum air ow [m/h] 10500 11400
RPM [min-1] 1700 1350
Sound pressure level at a distance of 3 m [dBA] 63 65
Max. transported air temperature [°] -25 +60 -25 +60
Ingress protection rating IPX4 IPX4

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VKMKpVKMK
Fan overall dimensions:
Model Dimensions [mm] Weight [kg]
D D1 H L L1
VKMK 150 149 400 230 440 330 7.2
VKMK 160 159 400 230 440 330 7.2
VKMK 200 198 400 250 440 330 8.1
VKMK 250 248 400 249 590 450 10.1
VKMK 315 315 550 339 590 450 12.3
VKMKp 150 149 400 230 440 330 6.8
VKMKp 160 159 400 230 440 330 6.8
VKMKp 200 198 400 250 440 330 7.7
VKMKp 250 248 400 249 590 450 9.6
VKMKp 315 315 550 339 590 450 11.6
VKMK 150
VKMK 160 VKMK 200 VKMK 250 VKMK 315
Voltage [V] 1~ 220-240 1~ 220-240 1~ 220-240 1~ 220-240
Frequency [Hz] 50 60 50 60 50 60 50 60
Power [W] 98 119 154 205 194 240 296 413
Current [A] 0.43 0.52 0.67 0.9 0.85 1.05 1.34 1.8
Maximum air ow [m/h] 555 580 950 1000 1310 1340 1880 1920
RPM [min-1] 2705 2855 2375 2510 2790 2860 2720 2780
Sound pressure level at a distance of 3 m
[dBA] 47 48 48 50 52 53 54 55
Max. transported air temperature [°] -25 +55 -25 +50 -25 +50 -25 +50 -25 +50 -25 +50 -25 +50 -25 +50
SEC class* B B - -
Ingress protection rating IPX4 IPX4 IPX4 IPX4
*The EC norm 1254/2014 does not apply if maximum air capacity is >1000 m/h
Technical data:

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VOK
Fan overall dimensions:
Model
Dimensions [mm]
Weight [kg]
D D1 H L L1
VOK 2E 200 208 345 280 425 330 5.0
VOK 2E 250 262 405 280 425 330 7.0
VOK 4E 250 262 405 280 425 330 7.0
VOK 2E 300 314 555 340 585 450 10.5
VOK 4E 300 314 555 340 585 450 10.5
VOK 4E 350 364 555 350 655 535 12.0
Technical data:
VOK 2E 200* VOK 2E 250* VOK 4E 250* VOK 2E 300 VOK 4E 300* VOK 4E 350
Voltage [V] 1~ 230
Frequency [Hz] 50 60 50 60 50 60 50 60 50 60 50 60
Power [W] 55 61 80 91 50 56 145 178 75 92 140 147
Current [A] 0.26 0.28 0.4 0.42 0.22 0.24 0.66 0.79 0.35 0.4 0.65 0.66
Maximum air ow [m/h] 860 875 1050 1150 800 865 2230 2280 1340 1475 2500 2650
RPM [min-1] 2300 2550 2400 2990 1380 1730 2300 2410 1350 1405 1380 1700
Sound pressure level at a distance
of 3 m [dBA] 50 51 60 61 55 56 60 61 58 59 62 63
Max. transported air tempera-
ture [°]
-30
+60
-30
+50
-30
+60
-30
+50
-30
+60
-30
+50
-30
+60
-30
+50
-30
+60
-30
+50
-30
+60
-30
+50
Ingress protection rating IP24
*Compliant to the ErP-regulation (EC) 327/2011. the power consumption at optimum eciency is < 125 W.

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VOK1
Fan overall dimensions:
Technical data:
Model
Dimensions [mm]
Weight [kg]
D D1 H L L1
VOK1 200 208 345 280 425 330 6.1
VOK1 250 262 405 300 425 330 7.2
VOK1 315 314 555 380 585 450 11.5
VOK1 200 VOK1 250 VOK1 315
Voltage [V] 1~ 230
Frequency [Hz] 50 60 50 60 50 60
Power [W] 43 33 68 76 110 104
Current [A] 0.28 0.21 0.48 0.51 0.75 0.7
Maximum air ow [m/h] 405 470 1070 1050 1700 1650
RPM [min-1] 1300 1615 1300 1450 1300 1365
Sound pressure level at a distance of 3 m
[dBA] 32 31 48 48 54 54
Max. transported air temperature [°] 40
Ingress protection rating IP24

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DISCONNECT THE UNIT FROM 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.
Make sure there are no visible damages of impeller, casing, grille and no foreign objects in-
side the casing that can damage the impeller blades.
Misuse of the fan and any unauthorized modications are not allowed.
The unit is not to be used by children and persons with reduced physical, mental or sensory
capacities, without proper practical experience or expertise, unless they are controlled or in-
structed on the unit operation by the person(s) responsible for their safety.
The fans are not designed for operation in the environment containing ammable substanc-
es or vapours like alcohol, gasoline, etc.
SAFETY REQUIREMENTS

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The fan is designed for mounting on a roof directly above a ventilation shaft or an air duct.
Installation procedure and mounting sequence are shown on pages 15-18.
To prevent water and snow ingress inside a ventilation shaft, the fan can be mounted on
a roof curb.
A roof fan can be connected to a ventilation shaft with an intake ange that is xed directly
to the fan base.
The fan base has holes for fastening bolts for connection of the fan to the level surface or
to the roof curb.
The roof curb, intake ange and fastening bolts are not included in the delivery set and can
be ordered separately.
Power is supplied via a remote terminal box or a terminal box built into the motor casing.
The unit is rated as a Class I electrical appliance and must be grounded.
The terminal must be connected to the ground loop.
The fan design is constantly being improved, thus some models may be slightly dierent from
those described in this manual.
INSTALLATION AND OPERATION GUIDELINES

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VKV, VKV ЕС
QF
1 2
3 4
65
7 8

16
VKH
VKH ЕС
QF
3
12
3 4
1 2
3 4

17
QF
QF
3
1 2
3 4
1 2
3 4
VKMK
VKMKp

18
QF
1 2
3 4
VOK, VOK1
CONNECTION TO POWER MAINS
DISCONNECT THE UNIT FROM POWER MAINS PRIOR TO ANY OPERATIONS.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER'S
LABEL.
ANY INTERNAL CONNECTION MODIFICATIONS ARE NOT ALLOWED AND RESULT IN WAR-
RANTY LOSS.
Depending on the modication the fans are powered by single-phase AC 230 V/50 (60) Hz
or three-phase AC 400 V/50 (60) Hz.
The connection must be made using insulated conductors (cables, wires).
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 position of the QF external automatic circuit breaker must ensure free access for quick
power-o of the unit.
The overcurrent protection must match the rated current consumption of the fan.

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The recommended automatic circuit breaker rated current and the cable cross section for
various fan models are stated in the table on page 19.
The above cross sections are for reference only. The actual cross section depends on maxi-
mum permissible wire heating, its material, insulation, length and installation method (i.e.
overhead, in pipes or inside the walls).
The fans with EC motors are connected to power mains through the terminal block lo-
cated inside the remote or integrated terminal box in compliance with the wiring diagram
and the terminal designation, see page 23.
The terminal designations are shown on the label inside the terminal box.
The recommended wiring diagram with motor overheating protection is shown on page
20.
The TW1 and TW2 terminals are the electrical leads of the normally closed contact of the
motor overheating protection.
This contact must be connected in series to the power supply circuit of the KM1 magnetic
starter coil, which starts the motor after pressing the S1 button.
The contact is broken in case of motor overheating and it switches the starter coil o to cut
power supply to the motor o.
The QF automatic circuit breaker, KM1 magnetic starter, S1 and S2 control buttons are not
included in the delivery set and are designed to be installed by the user.
Fan model Automatic circuit breaker
rated current [A]
Recommended cable, n x S, where n is a
number of the cable conductors and S is
the cable cross section [mm²]
VKV/VKH 2E 220...250
VKV/VKH 4E 310 1 3x0.5
VKV/VKH 2E 280
VKV/VKH 4E 355 1.6 3x0.5
VKV/VKH 4E 400...450 4 3x1.0
VKV/VKH 6E 500 2.5 3x1.0
VKV/VKH 4D 310...450 1 5x0.5
VKV/VKH 250...310  4 3x1.0
VKV/VKH 355...450  2 5x0.75
VKV/VKH 500...560  10 5x1.5
VKMK/VKMKp 150...250 1 3x0.5
VKMK/VKMKp 315 2 3x0.5
VOK 2E, 4E 200...350 1 3x0.5
VOK1 200...315 1 3x0.5

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L1
TW1
TW2
S1
“ON”
S2
“OFF”
KM1
L2
L3
QF
~400 V
50 (60) Hz
L1
L2
L3
N
PE
PE
Fan
L
N
X1
1
2
3
L
QF
N
PE
TW1
4
5
6
TW2
~230 V
50 (60) Hz
KM1
S1
“ON”
S2
“OFF”
KM1
РЕ