osily OSEF User manual

USER’S MANUAL
OSEF
CENTRIFUGAL INLINE FAN
RU EN
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
2
2
EN
CONTENTS
Delivery set ...............................................................................................................................................................................................................7
Brief description ....................................................................................................................................................................................................7
Operation guidelines ..........................................................................................................................................................................................8
Designation key ....................................................................................................................................................................................................9
Mounting ..................................................................................................................................................................................................................10
Control logic.............................................................................................................................................................................................................11
Maintenance ...........................................................................................................................................................................................................13
Troubleshooting.....................................................................................................................................................................................................13
Storage and transportation regulations..................................................................................................................................................14
Manufacturer’s warranty...................................................................................................................................................................................15
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 OSEF 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.
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.
Contents
Delivery set 6
Brief description 6
Operation guidelines 7
Mounting 8
Control logic 8
Maintenance 9
Troubleshooting 9
Storage and transportation regulations 10
Manufacturer’s warranty 11

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
3
3
EN
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.
This appliance can be used by children aged from 8 years and above
and persons with reduced physical, sensory or mental capabilities or
lack of experience and knowledge if they have been given supervision
or instruction concerning use of the appliance in a safe way and
understand the hazards involved.
Cleaning and user maintenance shall not be made by children
without supervision.
Children shall not play with the appliance.

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
4
EN
CAUTION: In order to avoid a safety hazard due to inadvertent
resetting of the thermal cut-out, this unit must not be supplied
through an external switching device, such as a timer, or connected
to a circuit that is regularly switched on and off by the utility.
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.
All operations described in this manual must be performed by
qualified personnel only, properly trained and qualified to install,
make electrical connections and maintain ventilation units.
Do not attempt to install the product, connect it to the mains, or
perform maintenance yourself.
This is unsafe and impossible without special knowledge.
Disconnect the power supply prior to any operations with the unit.
All user’s manual requirements as well as the provisions of all the
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent, or similarly qualified persons in order
to avoid a safety hazard.
5
EN
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 qualified 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.
Do not expose the unit to adverse atmospheric agents (rain, sun, etc.).
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

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
5
5
EN
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 qualified 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.
Do not expose the unit to adverse atmospheric agents (rain, sun, etc.).
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
6
EN
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
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.
BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES, READ THE
RELEVANT USER MANUALS.

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
6
7
EN
DELIVERY SET
Fan 1 pc.
Screws and dowels 4 pcs.
Plastic screwdriver (all fans with a timer) 1 pc.
User’s manual 1 pc.
Packing box 1 pc.
BRIEF DESCRIPTION
The unit described herein is an axial mixed-flow fan for supply or exhaust ventilation of
premises. The fan is designed for connection to 150mm air ducts.
Ø D B H L
146 223 250 295

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
7
8
EN
OPERATION GUIDELINES
The fan is rated for connection to single-phase AC 220-240 V/50 Hz or 220 V/60 Hz power mains.
The unit is rated for continuous operation.
The arrow on the fan casing must match the air direction in the system.
Ingress protection rating against access to hazardous parts and water ingress is IPX4.
The unit is rated as a Class II electrical appliance.
The fan is rated for operation at the ambient air temperature from +1 °C up to +40 °C.
Power supply [V/Hz] Transported air temperature [°C]
220-240/50 -25...+60
220/60 -25...+40
To comply with the ErP 2018 regulation, a local demand controller and speed controller must be used.
9
EN

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
8
10
EN
MOUNTING
The fan is designed for horizontal or vertical installation on the floor, on the wall or on the ceiling (Fig. 1). The
fan can be installed independently or as part of a set with parallel or in-series connection (Fig. 2).
To be installed on the intake spigot side:
• 1 m long air duct in case of horizontal fan installation
• ventilation hood in case of vertical fan installation
The exhaust spigot must always be connected to the air duct.
The fan mounting steps are shown in Fig. 3–10 and 13-18.
The wiring diagrams are shown in Fig. 11-12.
Terminal designations:
L1: minimum speed terminal
L2: maximum speed terminal
QF: automatic circuit breaker
S: external speed switch
ST: external switch (for example, light switch)
X: input terminal block
11
EN
CONTROL LOGIC
It is possible to control the fan rotation speed without options by voltage, as well as by thyristor controllers.
The speed controller is purchased separately.
Warning!
When adjusting the voltage, make sure there is no unusual noise or vibration at reduced motor speed.
The motor current may exceed the rated current during voltage regulation.
The fan is equipped with a thermal switch with no self-reset.
To reset the thermal relay, switch off the power supply.
Find and eliminate the cause of overheating.
Make sure the motor has cooled down to operating temperature.
Switch on the power supply.
Caution!
In case of overheating, replace the fan.
The OSEF150-WW fan is equipped with a speed switch (Fig. 20).
The OSEF150-WWT fan starts running after the external switch supplies control signal to the LT input
terminal (for example, during turning the light on).
After removal of the control signal the fan continues to run within the set time (adjustable with the turn-off
delay timer from 2 to 30 minutes).
To adjust the fan turn-off delay time, rotate the control knob T clockwise to increase and counter-clockwise
to decrease the turn-off delay time respectively (Fig. 19).
Warning! The timer circuit is under mains voltage. Disconnect the fan from power supply prior to any
adjustment operations. The fan delivery set includes a specially designed plastic screwdriver for adjustment of
the fan parameters. Use exclusively the delivered plastic screwdriver to adjust the turn-off delay time. Do not
use a metal screwdriver, knife, etc. for adjustment operations not to damage the circuit board.

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
9
12
EN
13
EN
MAINTENANCE
Clean the fan surfaces of dirt and dust each 6 months (Fig. 21–27).
Disconnect the fan from power supply prior to any maintenance operations.
For cleaning the fan use a soft cloth or a brush wetted in a mild detergent solution.
Avoid water dripping on the electric components (Fig. 26)!
Wipe the fan surfaces dry after cleaning.
TROUBLESHOOTING
Problem Possible reasons Troubleshooting
When the unit is connected to power
mains, the fan does not rotate and
does not respond to any controls.
No power supply.
Make sure the power supply line
is connected correctly, otherwise
troubleshoot the connection error.
Internal connection fault. Contact the Seller.
Low air flow. The ventilation system is clogged. Clean the ventilation system.
Increased noise, vibration.
The impeller is clogged. Clean the impeller.
The fan is not secured well or is not
mounted properly. Troubleshoot the installation error.
The ventilation system is clogged. Clean the ventilation system.

4
EN
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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
10
14
EN
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 °C to +40 °C 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.