osily OSEF Manual de usuario

USER’S MANUAL
OSEF
AXIAL FAN
EN

2
EN
CONTENTS
Delivery set ............................................................................................................................................................................................................................................ 7
Brief description ................................................................................................................................................................................................................................. 7
Operation guidelines ....................................................................................................................................................................................................................... 7
Designation key ................................................................................................................................................................................................................................. 8
Mounting................................................................................................................................................................................................................................................. 9
Electronic system operation algorithm................................................................................................................................................................................ 9
Maintenance.......................................................................................................................................................................................................................................... 11
Troubleshooting.................................................................................................................................................................................................................................. 11
Storage and transportation regulations............................................................................................................................................................................... 11
Manufacturer’s warranty................................................................................................................................................................................................................ 12
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.

3
EN
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 qualied 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.
READ THE USER’S MANUAL CAREFULLY BEFORE PROCEEDING WITH INSTALLATION WORKS.
COMPLIANCE WITH THE MANUAL REQUIREMENTS ENSURES RELIABLE OPERATION AND LONG
SERVICE LIFE OF THE UNIT.
KEEP THE USER’S MANUAL AVAILABLE AS LONG AS YOU USE THE UNIT. YOU MAY NEED TO
REREAD THE INFORMATION ON THE PRODUCT SERVICING.

4
EN
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
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.

5
EN
Never touch the unit with wet or damp hands.
Never touch the unit when barefoot.
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.
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.
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.

6
EN
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
Ensure that the unit is switched off from the supply mains before
removing the guard.

7
EN
DELIVERY SET
Fan - 1 pc.
Screws with dowels - 4 pcs.
Plastic screwdriver - 1 pc. (only for the models with a timer)
User’s manual - 1 pc.
Packing box - 1 pc.
BRIEF DESCRIPTION
The product is an axial fan for exhaust ventilation of small and medium-sized premises heated in winter. The design of the fan
may include a back valve that prevents air from flowing into the room when the fan is off. The fan is designed for connection
to ø100 mm air ducts.
OPERATION GUIDELINES
The fan is rated for connection to 220-240 V/50 Hz single-phase AC power mains, depending on the model type. For more
detailed information, see the casing sticker. Ingress protection rating against access to hazardous parts and water ingress is IP44.
The manufacturer’s recommended operating temperature range is from +1 °C to + 40 °C.
The unit is rated as a Class II (220-240 V/ 50 Hz) electric appliance.

8
EN
DESIGNATION KEY
OSEF 100 TS
Additional options:
TS: base model
CT: turn-off delay timer
CH: humidity sensor and turn-off delay timer
Outlet duct diameter [mm]
Fan series

9
EN
MOUNTING
The fan can be mounted to the ceiling or onto a wall with air extraction into a ventilation shaft or a matching diameter
round air duct (Fig. 2). The fan installation steps are given on Fig. 3-11. Electric connection diagrams are given on Fig. 12-13.
Connection diagram terminal key:
L— line S— external switch
N— neutral QF — automatic switch
LT — timer control line
ELECTRONIC SYSTEM OPERATION ALGORITHM
The CT model fans equipped with a timer are activated by control voltage application to input terminal Sby an external
switch (e.g. indoor light switch). Upon control voltage removal the fan continues to operate for the period of time set by the
timer within the range from 2 to 30 minutes.
The CH model fans equipped with a timer and a humidity sensor are activated by control voltage application to input
terminal Sor on exceeding the pre-set humidity level Hadjustable within the ~60 % to ~90 % range. Upon control voltage
removal or a decrease of humidity level Hthe fan continues to operate for the period of time set by the timer within the
range from 2 to 30 minutes.
— To adjust the fan activation delay time, turn the Ton potentiometer knob clockwise (+) or counter-clockwise (-)
which sets the activation delay time within the range from 0 to 2 minutes.
— To adjust the fan deactivation delay time, turn the To potentiometer knob clockwise (+) or counter-clockwise (-)
which sets the activation delay time within the range from 2 to 30 minutes.
— To adjust the humidity sensor threshold value turn the Hpotentiometer knob clockwise (+) or counter-clockwise (-)
which sets the threshold value within the range from 60 % to 90 %.
THE TIMER CIRCUIT IS LIVE.
MAKE SURE THE FAN IS DISCONNECTED FROM POWER SUPPLY.

10
EN
DO NOT USE A METAL SCREWDRIVER, KNIFE, ETC. FOR ADJUSTMENT
OPERATIONS NOT TO DAMAGE THE CIRCUIT BOARD.
The fan is supplied with a special plastic screwdriver. Use the
screwdriver to adjust the fan activation or deactivation delay
time or the humidity sensor threshold value.
H
60% 90%
To
2 min 30 min
Ton
0 min 2 min
for CT
for CH
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