Vents VKO Series User manual

AXIAL FAN
User’s manual
www.ventilation-system.com
VKO
VKO1
M
MA
M1
M3
MAO1
MAO2
M1OK2
R
R1
K
K1
PF
PF1
F
F1
D
D1
LD
LD1
S
S1
X
X1
Xstar
Silenta-M
Silenta-S
EN

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CONTENTS
Delivery set............................................................................................................................................................................................................................................. 6
Brief description .................................................................................................................................................................................................................................. 7
Operation guidelines ...................................................................................................................................................................................................................... 7
Product sales ......................................................................................................................................................................................................................................... 7
Designation key................................................................................................................................................................................................................................... 8
Mounting and set-up....................................................................................................................................................................................................................... 9
Electronics operation algorithm .............................................................................................................................................................................................. 20
Troubleshooting.................................................................................................................................................................................................................................. 24
Maintenance ........................................................................................................................................................................................................................................ 27
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.

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PLEASE READ THE USER’S MANUAL CAREFULLY PRIOR TO INSTALLING, CONNECTION TO POWER
MAINS AND OPERATING THE UNIT.
THE MANUFACTURING COMPANY SHALL NOT BE RESPONSIBLE FOR DAMAGE TO HEALTH AND
PROPERTY OF THE CUSTOMER CAUSED BY THE CUSTOMER’S VIOLATING THE USER’S MANUAL.
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE OPERATION OF THE UNIT, ITS
MECHANICAL AND ELECTRICAL RELIABILITY.
KEEP THIS USER’S MANUAL.
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 Vents
VKO, VKO1, M, MA, M1, M3, MAO1, MAO2, M1OK2, R, R1, K, K1, PF, PF1, F, F1, D, D1, LD, LD1, S, S1, X, X1, Xstar, Silenta-M,
Silenta-S 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.
The information in this user’s manual is 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.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means in any
information search system or translated into any language in any form without the prior written permission of the Company.

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Disconnect the unit from 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 and maintenance. The
present user’s manual should be carefully read before beginning
works.
• Single-phase power mains must comply with the acting local electrical
norms and standards.
• Fixed electrical wiring must be equipped with an automatic circuit
breaker.
• The unit must be connected to power mains through a QF automatic
circuit breaker integrated into the fixed wiring system. The gap
between the circuit breaker contacts on all poles must be not less
than 3 mm. Check the unit for any visible damages of the impeller
and the casing before starting installation. The casing internals must
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.

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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 the motor jam and noisy
operation. Misuse of the unit and any unauthorised modifications are
not allowed.
• Take steps to prevent ingress of smoke, carbon monoxide, and other
combustion products into the room through open chimney flues or
other fire-protection devices. Sufficient air supply must be provided
for proper combustion and exhaust of gases through the chimney
of fuel burning equipment to prevent back drafting. 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 unit is allowed to be used by children aged from 8 years old

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and above and persons with reduced physical, sensory, or mental
capabilities or no experience and knowledge provided that they have
been given supervision or instruction regarding safe use of the unit
and understand the risks involved.
• Do not allow children to play with the unit.
DELIVERY SET
Fan – 1 pc.
Screws and dowels – 4 pcs. (except for VKO/VKO1/MAO1/MAO2/M1OK2 models)
Screw, bolt, nut, plastic nut – 4 pcs. of each (for MAO1/MAO2/M1OK2 models)
Sealant – 2 pcs. (for MAO1/MAO2/M1OK2 models)
Connecting screws – 2 pcs. (for MAO1/MAO2/M1OK2 models)
Plastic screwdriver – 1 pc. (only for models with a timer)
User’s manual – 1 pc.
Packing box – 1 pc.

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BRIEF DESCRIPTION
The product is an axial fan for exhaust ventilation of small and medium-sized premises.
The fans of the VKO/VKO1 series can be used for both supply and exhaust ventilation and are installed in the ventilation duct.
The fan (except for the VKO/VKO1/MAO/M1OK series) is designed for wall or ceiling mounting.
The fans of the VKO/VKO1 series are designed for installation in the ventilation duct.
The fans of the MAO/M1OK series are designed for window installation.
The fan is rated for continuous operation.
The fan design is regularly improved, so some models may slightly differ from those ones described herein.
OPERATION GUIDELINES
The fan is connected to 220...240 V/50 Hz or 12 V/50 Hz single-phase AC mains depending on the model and is designed for
continuous operation without disconnection from power mains.
Hazardous parts access and water ingress protection rating: VKO, VKO1 series – IPX4; MA, Xstar, R, R1, MAO1, MAO2, M1OK2,
X, X1 series – IP24; K, K1, D, D1, M, PF, PF1, M1, M3, S, S1, F, LD, LD1, F1, Silenta-M, Silenta-S series – IP34.
The fan is rated for operation at ambient temperatures ranging from +1 °C to +40 °C.
The unit is rated as a Class II (220-240 V/50 Hz) or Class III (12 V/50 Hz) electrical appliance.
PRODUCT SALES
The product is sold in specialized and retail trade organizations.

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DESIGNATION KEY
Vents 100 LD A B K L
Modications
_ – standard
L – motor on ball bearings
Turbo – high-powered motor
12 – motor with 12 V/50 Hz rated voltage
Press – high pressure impeller
K – non-return valve
Additional options
V – pull cord switch
T – turn-off delay timer
T1 – turn-on and turn-off delay timer
TH – humidity sensor and turn-off delay timer
ТР – motion sensor and turn-off delay timer
K – non-return valve
Decorative front panel
A – brushed aluminium (for the LD series)
N – polished stainless steel (for the LD series)
Fan series
VKO, VKO1, M, MA, M1, M3, MAO1, MAO2, M1OK2, R, R1, K, K1, PF, PF1, F, F1, D,
D1, LD, LD1, S, S1, X, X1, Xstar, Silenta-M, Silenta-S
Outlet spigot diameter [mm]
100, 120, 125, 150

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MOUNTING AND SET-UP
The designation of the fan, schematic representation of its appearance, overall and mounting dimensions, as well as design
features are given below.
VKO, VKO1
A
C
D
E
HF F H
E
GG
D1
AL
Model А D1 D C L E G H F
100 VKO/VKO1 91/113 104 100 31 28 160 144 29 45
125 VKO/VKO1 93/118 129 125 31 28 185 169 29 45
150 VKO/VKO1 108/128 154 150 46 28 200 184 29 45
The VKOk and VKO1k models are equipped with a mounting bracket for mounting on a flat surface.

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MAO1, MAO2, M1OK2
A
B
E C
DH
G
Model А B C D E G H
125 MAO1 190 173 58 125 30 – –
125 MAO2 190 173 – 125 30 123 159
150 MAO1 210 195 66 150 30 – –
150 M1OK2 190 173 – 150 13 123 159
M3, F, F1
A
B
C
D
GF
E
Model А B C D E F G
100 M3 185 155 86 100 30 256 226
125 M3 185 155 89 125 30 256 226
150 M3 185 155 114 150 30 256 226
100 F/F1 182 152 104/128 100 13 252 226
125 F/F1 182 152 110/134 125 15 252 226

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K, K1, D, D1, M, MA, M1, LD, LD1, S, S1, PF, PF1, X, X1, Xstar, R, R1, Silenta-M, Silenta-S
A
B C
D
E
A
Model А B C D E
100 K/K1 154 110 105/109 100 15/19
125 K/K1 187 142 112/116 125 15/19
150 K 250 214 127 150 15
100 D/D1 150 120 108/93 100 12,5
120 D 176 140 106 120 12
125 D/D1 176 140 114/96 125 12,5
150 D 205 165 132 150 13
100 M 159 135 88,5 100 23
125 M 180 150 94 125 25
150 M 206 182 106 150 25,5
100 MA/M1 165 150 92 100 30
125 MA/M1 190 173 98 125 30
150 MA/M1 212 195 114 150 30
100 LD/LD1 152 120 126/111 100 30
120 LD 177 140 135 120 34
125 LD/LD1 177 140 135/116 125 34
150 LD 206 165 154 150 36
100 S/S1 150 120 108/93 100 12
120 S 176 140 107 120 12
125 S/S1 176 140 114/96 125 13
150 S 205 165 132 150 14
100 PF/PF1 141 – 104/128 100 13
125 PF/PF1 166 – 110/134 125 15
150 PF/PF1 186 – 125/146 150 15

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100 X 152 120 125 100 30
125 X 177 140 143 125 42
150 X 205 165 160 150 42
100 X1 152 120 108 100 11,5
120 X1 177 140 114 120 12,5
125 X1 177 140 114 125 12,5
150 X1 205 165 132 150 13
100 Xstar 152 120 132 100 36
125 Xstar 177 140 143 125 42
150 Xstar 205 165 160 150 42
100 R 150 122 125 100 36
100 R1 150 122 114 100 25
100 Silenta-M 159 135 88,5 100 23
125 Silenta-M 180 150 94 125 25
150 Silenta-M 206 182 106 150 25,5
100 Silenta-S 150 120 108 100 12
120 Silenta-S 170 140 114 120 13
125 Silenta-S 170 140 114 125 13
150 Silenta-S 205 165 132 150 14
For fans with a K option, the overall length of the outlet pipe increases by 14 mm.

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The fan shown in the figures may slightly differ from your model, while the installation sequence is maintained.
The fan is designed for wall or ceiling mounting with direct air exhaust to the ventilation shaft or into the round air duct of
matching diameter.
The fan mounting sequence is shown in figures.

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QF
L N
1. 2. 3.
4. 5. 6.
7. 8. 9.
K/K1/PF/PF1/F/F1 series

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QF
L N
1. 2. 3.
4. 5. 6.
10. 11. 12.
M/M1/M3/МА/Silenta-M series

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7. 8. 9.
MAO/M1OK series
QF
L N
180 mm
150MAO1
160 mm
125MAO1
125MAO2
125M1OK2
1. 2. 3.
4. 5. 6.

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D/D1/LD/LD1/S/S1/X/X1/Xstar/Silenta-S series
QF
L N
1. 2. 3.
7.
10.
8.
11.
9.

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4.
7.
10.
5.
8.
11.
6.
9.

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R/R1 series
QF
L N
1. 2. 3.
4.
7.
5.
8.
6.
9.

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ELECTRONICS OPERATION ALGORITHM
The fan with the T timer activates upon control voltage application to input LT (ST, SL) by an external switch (e.g. indoor
light switch). After the control voltage is off, the fan continues to operate within the set time period adjustable from 2 to 30
minutes by the timer.
The fan with the T1 timer – when the control voltage is applied to the LT terminal by an external switch (for example,
switching on the room light), the turn-on delay timer is activated, and the fan does not start.
After the turn-on delay time runs out, the fan starts to run.
Turn-on delay time value Tz is adjustable in two ranges – from 10 seconds to 90 seconds and from 2 minutes to 30 minutes.
Select the adjustment range using the jumper on the timer board.
After the control voltage is off, the fan continues to operate within the set time period adjustable from 2 to 30 minutes by
the timer.
The fan with the timer and the humidity sensor TH – the fan starts after the control voltage is supplied to the input LT
(ST, SL) or if indoor humidity level H exceeds the set point adjustable from ~60 % to ~90 %.
After the control voltage is off or the humidity level has decreased, the fan will keep running within the time set by the timer
ranging from 2 to 30 minutes.
THE TIMER CIRCUIT IS LIVE.
MAKE SURE THE FAN IS DISCONNECTED FROM POWER SUPPLY.
10. 11. 12.