Vents VKV Series User manual

ROOF FANS
VENTS VKV \ VKH \ VKV EC \ VKH EC \ VKMK \
VKMKp \ VOK \ VOK1 SERIES
30637114-012.2 PS
USER'S MANUAL

1. Application
2. Delivery set
3. Designation key
4. Basic technical data
5. Fan structure
6. Safety requirements
7. Installation and operation guidelines
8. Connection to power mains
9. Storage rules
10. Maintenance and servicing
11. Manufacturing warranty
12. Acceptance certificate
13. Warranty card
CONTENT
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
р. 3
р. 3
р. 4
р. 5
р. 10
р. 11
р. 12
р. 16
р. 27
р. 38
р. 31
р. 32
р. 32

APPLICATION
DELIVERY SET
The roof fans VENTS VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK,
VOK1 in metal casing with intake flange diameter from 220 to 500 mm for all
models 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, high-rise building and premises, public places, offices, hospitals,
restaurants, pools and other premises heated during winter time.
The fan is not designed for heavy-duty operation in the environment containing
dust, solid particles, sticky and fibrious materials.
The ambient temperature must not exceed the values stated in the tables
5; 7; 9; 10.
The fan is suitable for vertical mounting on the exhaust ventilation shaft and is
used for exhaust ventilation only.
The fan is rated for continuous operation always connected to power mains.
Ingress protection rating is IP X4.
The delivery set comprises:
fan - 1 pce;
user's manual;
packaging.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

DESIGNATION KEY
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 electric motor phases:
E - single-phase
D - three-phase
Impeller diameter, mm:
200; 220; 225; 250; 280; 300;
310; 350; 355; 400; 450; 500
XXX X X XXX
2, 4, 6.
VKV, VKH, VOK fan structural designation key.
Fan designation:
VKV - centrifugal roof fan with vertical
air discharge
VKH - centrifugal roof fan with horizontal
air discharge
Motor type:
EC - electronically commutated
XXX
VKV EC, VKH EC fan structural designation key.
XXX XX
250; 280; 310; 355; 400; 450; 500; 560
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Impeller diameter, mm:

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
XXX
VKMK, VKMKp, VOK1 fan designation key structure
XXX
Impeller diameter, mm:
150; 200; 250; 315
Designation key example:
VKV 2E 280 - centrifugal roof fan with vertical air discharge,
two-pole single-phase electric motor and Ø 280 mm impeller.
VKV 280 EC - centrifugal roof fan with vertical air discharge,
EC electric motor and Ø 280 mm impeller.
VKH 4E 310 - centrifugal roof fan with horizontal air discharge,
4-pole single-phase electric motor and Ø 310 mm impeller.
VKMK 200 - centrifugal roof fan with Ø 200 mm intake flange.
VKMKp 150 - centrifugal roof fan with a base plate and Ø 150 mm
intake flange.
BASIC TECHNICAL DATA
Fan designation, their parameters and connecting dimensions are shown
in tables 1; 2; 3; 4; 5; 6; 7; 8; 9; 10 and in figures 1; 2; 3; 4.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

VKV 250 ЕС
VKV 280 ЕС
VKV 310 ЕС
VKV 355 ЕС
VKV 400 ЕС
VKV 450 ЕС
VKV 500 ЕС
VKV 560 ЕС
LL2L1 Н
ØD
435
435
435
595
595
665
665
940
528
557
557
708
708
898
898
1150
330
330
330
450
450
535
535
750
320
327
327
387
387
464
464
560
285
285
285
438
438
438
438
605
16
18
21
38
82
84
88
98
Тип
вентилятора
ВКВ 2Е 220
ВКВ 2Е 225
ВКВ 2Е 250
ВКВ 2Е 280
ВКВ 4Е 310
ВКВ 4Д 310
ВКВ 4Е 355
ВКВ 4Д 355
ВКВ 4Е 400
ВКВ 4Д 400
ВКВ 4Е 450
ВКВ 4Д 450
ВКВ 6Е 500
L2
LL1 Н
ØD
Масса,
кг
Размеры, мм
460
460
520
520
560
560
783
783
783
783
872
872
872
338
338
400
400
438
438
598
598
598
598
668
668
668
245
245
330
330
330
330
450
450
450
450
450
450
450
275
275
275
275
330
330
420
420
420
420
454
454
454
245
210
286
286
286
286
438
438
438
438
438
438
438
8,9
9,6
12,0
12,7
17,8
17,8
22,0
22,0
27,5
27,5
30,0
30,0
33,8
Fan
type
VKV 2Е 220
VKV 2Е 225
VKV 2Е 250
VKV 2Е 280
VKV 4Е 310
VKV 4D 310
VKV 4Е 355
VKV 4D 355
VKV 4Е 400
VKV 4D 400
VKV 4Е 450
VKV 4D 450
VKV 6Е 500
L2
L
L1
Н
ØD
Weight,
kg
Dimensions, mm
460
460
520
520
560
560
783
783
783
783
872
872
872
338
338
425
425
438
438
598
598
598
598
668
668
668
245
245
330
330
330
330
450
450
450
450
535
535
535
275
275
275
275
330
330
420
420
420
420
454
454
454
213
213
285
285
285
286
438
438
438
438
438
438
438
8,9
9,6
12,0
12,7
17,8
17,8
22,0
22,0
27,5
27,5
30,0
30,0
33,8
Figure 1
Table 2
Table 1
VKV, VKV EC
H
L2
L1
D
L
2
3
1
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Fan
type
Weight,
kg
Dimensions, mm

Table 4
Table 3
Figure 2
VKH VKH EC
L2
H
D
L1
L
d
1
3
2
H
L2
D
d
1
L
L1
2
3
ød
11
11
11
11
11
11
11
14
VKH 250 ЕС
VKH 280 ЕС
VKH 310 ЕС
VKH 355 ЕС
VKH 400 ЕС
VKH 450 ЕС
VKH 500 ЕС
VKH 560 ЕС
LL2
L1
Н
ØD
330
330
330
450
450
535
535
750
411
431
431
558
558
637
637
912
435
435
435
595
595
665
665
940
289
264
272
326
357
407
437
487
285
285
285
438
438
438
438
605
16
17
19
32
75
80
84
95
ød
10
10
10
10
10
10
12
12
12
12
12
12
12
VKH 2Е 220
VKH 2Е 225
VKH 2Е 250
VKH 2Е 280
VKH 4Е 310
VKH 4D 310
VKH 4Е 355
VKH 4D 355
VKH 4Е 400
VKH 4D 400
VKH 4Е 450
VKH 4D 450
VKH 6Е 500
L2
L
L1
Н
ØD
338
338
365
365
400
400
550
550
550
550
640
640
640
338
338
425
425
438
438
598
598
598
598
668
668
668
245
245
330
330
330
330
450
450
450
450
535
535
535
228
228
265
265
300
300
348
325
348
348
400
400
465
213
213
285
285
285
285
438
438
438
438
438
438
438
6,9
7,1
10,1
10,2
10,2
10,2
15,6
15,6
21,0
22,0
22,7
22,7
26,6
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Fan
type
Weight,
kg
Dimensions, mm
Fan
type
Weight,
kg
Dimensions, mm

VKV/VKH 2Е 220
85
135
155
225
120
110
245
170
480
385
640
470
385
230
230
230
230
230
400
230
400
230
400Y
230
400Y
230
0,38
0,6
0,7
1,0
0,54
0,32
1,12
0,52
2,4
0,7
3,1
0,82
1,82
-25 +55
-25 +55
-25 +50
-25 +50
-25 +85
-25 +65
-25 +50
-25 +70
-25 +80
-25 +60
-25 +50
-25 +50
-25 +50
VKV/VKH 2Е 225
VKV/VKH 2Е 250
VKV/VKH 2Е 280
VKV/VKH 4Е 310
VKV/VKH 4D 310
VKV/VKH 4Е 355
VKV/VKH 4D 355
VKV/VKH 4Е 400
VKV/VKH 4D 400
VKV/VKH 4Е 450
VKV/VKH 4D 450
VKV/VKH 4D 500
VKMK 150
VKMK 200
VKMK 250
VKMK 315
VKMKp 150
VKMKp 200
VKMKp 250
VKMKp 315
H L1 LØD
230
250
249
269
230
250
249
269
330
330
450
450
330
330
450
450
440
440
590
590
440
440
590
590
400
400
400
500
400
400
400
500
149
198
248
315
149
198
248
315
7,2
8,1
10,1
10,1
8,2
9,3
12,3
12,2
ØD1
Figure 3
Table 6
VKMKp
8
VKMK
H
30
L1
L
ØD
ø12
ØD1
2
3
H
L1
L
ø12
ØD
ØD1
1
Table 5
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Fan
type
Weight,
kg
Dimensions, mm
Fan
type
Current,
A
Power,
W
Voltage,
V at 50 Hz
Maximum
operating
temperature,°C

Table 8
Table 7
9
VOK 2Е 200
VOK 2Е 250
VOK 4Е 250
VOK 2Е 300
VOK 4Е 300
VOK 4Е 350
VOK1 200
VOK1 250
H L1
LØD
220
250
250
260
260
260
220
250
425
425
425
585
585
655
425
425
330
330
330
450
450
535
330
330
341
401
401
401
401
500
341
401
207
262
262
312
312
362
207
262
4,3
6,5
6,5
8,7
8,7
10,9
4,9
6,8
ØD1
VOK1 315 260585 450
500312
9,2
VKV/VKH 250 ЕС
485
455
480
940
770
1010
2700
2300
1~ 220-277
1~ 220-277
1~ 220-277
3~ 380-480
3~ 380-480
3~ 380-480
3~ 380-480
3~ 380-480
3
2,8
3,1
1,5
1,3
1,6
4,3
3,6
-25 +60
-25 +40
-25 +60
-25 +60
-25 +60
-25 +60
-25 +60
-25 +60
VKV/VKH 280 ЕС
VKV/VKH 310 ЕС
VKV/VKH 355 ЕС
VKV/VKH 400 ЕС
VKV/VKH 450 ЕС
VKV/VKH 500 ЕС
VKV/VKH 560 ЕС
ØD
ø12
H
L1
30
L
ØD1
1
2
4
Figure 4
VOK VOK1
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Fan
type
Weight,
kg
Dimensions, mm
Fan
type
Current,
A
Power,
W
Voltage,
V at 50/60 Hz
Maximum
operating
temperature,°C
H
30
L
L1
ØD1
ØD
ø12
3

VKMK/VKMKp 150
98
154
194
296
230
230
230
230
0,43
0,67
0,85
1,34
-25 +55
-25 +55
-25 +50
-25 +45
VKMK/VKMKp 200
VKMK/VKMKp 250
VKMK/VKMKp 315
VOK 2Е 200
55
80
50
145
0,26
0,4
0,22
0,66
-30 +60
-30 +60
-30 +60
-30 +60
75
0,35
-30 +60
VOK 2Е 250
VOK 4Е 250
VOK 2Е 300
VOK 4Е 300
VOK 4Е 350
VOK1 200
VOK1 250
VOK1 315
0,65
0,28
0,48
0,75
140
43
68
110
230
230
230
230
230
230
230
230
230
-30 +60
-25 +50
-25 +50
-25 +50
Fan
type
Current,
A
Power,
W
Voltage,
V at 50 Hz
Maximum
operating
temperature,°C
Table 10
10
Table 9
FAN STRUCTURE
The centrifugal fan VKV/VKV EC (fig. 1) consists of the pan 1 connected
through a net to the base with the fixed electric motor and impeller on it.
The VKV EC fan is equipped with EC motor.
The protecting housing 2 is also fixed to the pan.
The cover 3 that protects the electric motor against weather factors is
fixed to the base.
The terminal box is fixed to the upper casing part for connection of the fan to
single- or three-phase power mains and placement of the operating capacitor.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
Fan
type
Current,
A
Power,
W
Voltage,
V at 50/60 Hz
Maximum
operating
temperature,°C

The centrifugal fan VKH/VKH EC (fig. 2) consists of the pan 1 connected
through a net 2 to the base with the fixed electric motor and impeller on it.
The VKH EC fan is equipped with a EC motor.
The cover 3 that protects the electric motor against weather factors is fixed to
the base. The terminal box for connection of the fan to single- or three-phase
power mains and placement of the operating capacitor is fixed to the upper
casing part.
The centrifugal roof fan VKMK/VKMKp (fig. 3) consists of the casing 3 and
the flange 2. The impeller and the electric motor are placed inside the fan
casing. The cover 3 is attached to the casing with self-tapping screws.
The terminal box 4 for connection of the fan to single- or three-phase power
mains and placement of the operating capacitor is fixed to the upper casing
part.
The axial fan VOK/VOK1 (fig. 4) consists of the casing 1 with a square flange
2 (VKMK modification) or a plate (VKMKp modification).
The impeller and the electric motor are placed inside the axial fan casing.
The cover 3 is attached to the casing with self-tapping screws.
The terminal box 4 for connection of the fan to single- or three-phase power
mains and placement of the operating capacitor is fixed to the upper casing
part.
11
SAFETY REQUIREMENTS
All electric connection, adjustment, servicing and repair operations must be
done with the fan disconnected from power supply.
Electric connection works must be done by a duly qualified electrician with a
valid electrical work permit for operation up to 1000 V units. Read this manual
before starting any electrical works.
Make sure of no visible damages of impeller, casing, grille and no foreign
objects inside the casing that can damage the impeller blades.
Misuse of the fan and any unauthorized modifications 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 instructed on the unit operation by the person(s)
responsible for their safety.
The fans are not designed for operation in the environment containing
flammable substances or vapours like alcohol, gasoline, etc.
The fans are powered by single-phase 230 V/ 50 Hz
(VKMK and VKMKp 230 V/ 50 Hz, 60 Hz) alternating current or by
three-phase 400 V/ 50 Hz alternating current.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

INSTALLATION AND OPERATION GUIDELINES
The fan is designed for mounting on a roof directly above a ventilation
shaft or air duct.
Installation procedure and mounting sequence are shown
in fig. 5, 6, 7, 8, 9, 10.
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 flange that
is fixed 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 flange and fastening bolts are not included into
delivery set and are available upon separate order.
Power supply to the fan is effected with an external terminal box or a
terminal block integrated into the motor casing.
The fan must be grounded.
The terminal must be connected to the ground loop.
Due to the constant improvements the design of some models may slightly
differ from those described in this manual.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

QF
1 2
3 4
65
7 8
13
Figure 5
VKV, VKV EC
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

QF
3
12
3 4
12
3 4
VKH
14
VKH EC
Figure 6
Figure 7
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

QF
QF
3
1 2
3 4
1 2
3 4
15
Figure 8
VKMK
Figure 9
VKMKp
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

VOK, VOK1
16
Figure10
QF
1 2
3 4
CONNECTION TO POWER MAINS
Switch power supply off before starting any operations with the fan.
Connection to power supply must be done by a duly qualified electrician.
The rated electrical parameters are shown on the rating plate.
Any tampering with the internal connection is prohibited and will void
warranty.
Depending on the modification the fans are powered by single-phase
230 V / 50 Hz or 60 Hz or 400 V / 50 Hz alternating current.
The fan must be connected through insulated durable and thermal-resistant
wires (cables).
The automatic circuit breaker incorporated into the fixed power network that
breaks all the phases must be installed at the external electric input
230 V / 50 Hz or 60 Hz or 400 V / 50 Hz.
The external circuit breaker QF location must provide free and unhampered
access to the fan for quick switching off in case of need.
The overcurrent protection must match the rated current consumption
Of the fan.
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

The recommended automatic circuit breaker rated current and the cable cross
sections for various fan types are stated in the table 11.
The above cross sections are for reference only.
The actual cross section depends on the cable type, maximum heating value.
The fans with EC-motors are connected to power mains through the terminal
block located inside the external or integrated terminal block in compliance with
the wiring diagram and the terminal designation, see fig. 17 for VKV/VKH
250…310 EC; fig. 18 for VKV/VKH 355...560 EC.
The terminal designations are shown on the sticker inside the terminal box.
The recommended wiring diagram with motor overheating protection for single-
phase motor is shown in fig. 11 and for three-phase motor is shown in fig. 12.
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 circuit of the coil of the
magnetic starter KM1 that starts the motor after pressing the button S1.
The contact is broken in case of motor overheating and it switches the starter
coil off to cut power supply to the motor off.
The automatic circuit breaker QF, magnetic starter KM1, control buttons S1 and
S2 are not included into the delivery set and are designed to be installed by the
user.
17
VKV/VKH 2Е 220...250
VKV/VKH 4Е 310
1
Fan
type
VKV/VKH 2Е 280
VKV/VKH 4Е 355
VKV/VKH 4Е 400...450
VKV/VKH 6Е 500
VKV/VKH 4D 310...450
VKV/VKH 250...310 ЕС
VKV/VKH 355...450 ЕС
VKV/VKH 500...560 ЕС
VKMK/VKMKp 150...250
VKMK/VKMKp 315
VOK 2Е, 4Е 200...350
Automatic
circuit breaker
rated current, A
Recommended
cable, n x S, where
n - number of the
cable conductors
S - the cable 2
cross section, mm
3х0,5
1,6
4
3х0,5
3х1,0
3х1,0
5х0,5
3х1,0
5х0,75
5х1,5
3х0,5
3х0,5
3х0,5
2,5
1
44
2
10
1
2
1
VOK1 200...315
3х0,5
1
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1

18
Figure 11
Figure 12
L1
TW1
TW2
S1
“ON”
S2
“OFF”
KM1
L2
L3
QF
~400V
50Hz
L1
L2
L3
N
PE
PE
L
N
X1
1
2
3
L
QF
N
PE
TW1
4
5
6
TW2
~230V
50Hz
KM1
S1
“ON”
S2
“OFF”
KM1
РЕ
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
X1

19
Figure 13
Figure 14
Wiring diagram for VKV/VKH 2E 220; VKV/VKH 2E 225; VKV/VKH 2E 250;
VKV/VKH 2E 280, VKV/VKH 4E 310, VKV/VKH 4E 355 fans.
Wiring diagram for VKV/VKH 4E 400; VKV/VKH 4E 450;
VKV/VKH 6E 500 fans.
where QF is the automatic circuit breaker (not included into the delivery set);
X1 is the terminal block.
L
N
X1
1
2
3
N
LQF
PE
~230 V
50 Hz
5
4
6
TW1
TW2
TW1
TW2
РЕ
L
N
X1
1
2
3
N
LQF
PE
~230 V
50 Hz
4
РЕ
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
where QF is the automatic circuit breaker (not included into the delivery set);
X1 is the terminal block.

20
Figure 15
Figure 16
Wiring diagram for VKV/VKH 4D 310 fan.
Wiring diagram for VKV/VKH 4E 355 fan; VKV/VKH 4D 400;
VKV/VKH 4D 450 fans.
L2
L1
QF
PE
~400 V
50 Hz
L2
L1
X1
2
7
1
3
L3
L3
5
4
6
V1
U1
W1
W2
PE
U2
V2
L1
L2
L3
8
9
TW2
TW1 TW1
TW2
TW1
TW2
РЕ
L2
L1
QF
PE
~400 V
50 Hz L2
L1
X1
2
4
1
3
L3
L3
РЕ
VKV, VKH, VKV EC, VKH EC, VKMK, VKMKp, VOK, VOK1
where QF is the automatic circuit breaker (not included into the delivery set);
X1 is the terminal block.
where QF is the automatic circuit breaker (not included into the delivery set);
X1 is the terminal block.