Vents 100 Base User manual

AXIAL FAN
USER’S MANUAL
www.ventilation-system.com
Base
EN

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CONTENTS
Delivery set ............................................................................................................................................................................................................................................ 9
Brief description ................................................................................................................................................................................................................................. 9
Operation guidelines ...................................................................................................................................................................................................................... 9
Designation key ................................................................................................................................................................................................................................. 10
Installation and set-up..................................................................................................................................................................................................................... 12
Connection to power mains ...................................................................................................................................................................................................... 14
Electronics operation algorithm ............................................................................................................................................................................................... 16
Technical maintenance ................................................................................................................................................................................................................. 17
Troubleshooting.................................................................................................................................................................................................................................. 18
Storage and transportation regulations............................................................................................................................................................................... 18
Manufacturer’s warranty................................................................................................................................................................................................................ 19

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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 Base
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.
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.

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FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE AND
TROUBLE-FREE OPERATION OF THE UNIT.
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 qualied 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.

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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

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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.

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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.
Connection to the mains must be made through a disconnecting
device, which is integrated into the fixed wiring system in accordance
with the rules for design of electrical units, and has a contact
separation in all poles that allows for full disconnection under
overvoltage category III conditions.

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

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DELIVERY SET
Fan — 1 pc.
Screws and dowels — 4 pcs.
Plastic screwdriver (only for the models with a timer T) — 1 pc.
User’s manual — 1 pc.
Packing box — 1 pc.
BRIEF DESCRIPTION
The unit described herein is an axial fan for exhaust ventilation of small to medium-sized premises heated during winter.
The fan design can also include a non-return valve to prevent back flow when the fan is switched off.
The fan is designed for connection to ø 100 and 125 mm air ducts.
The name and specifications are stated on the label on the unit casing.
The fan design is constantly being improved, thus some models may be slightly different from those described in this
manual.
WARNING! The decorative front panel must be purchased separately.
OPERATION GUIDELINES
The fan is connected to 220-240 V, 50 Hz and 220 V, 60 Hz or 12 V/50 Hz single-phase AC power mains depending on the
model and is designed for continuous operation without disconnection from the electric mains.
Ingress protection rating against access to hazardous parts and water ingress is IP24.
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/220 V, 60 Hz) or Class III (12 V/50 Hz) electrical appliance.

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DESIGNATION KEY
100 Base V K Q (220V/60Hz)
Power supply parameters other than 220 V/50 Hz
_ – 220-240 V/50 Hz (by default)
(220V/60Hz) – 220 V/60 Hz
Motor modication:
L – motor on ball bearings
Turbo – high-powered motor
Q – low-noise motor
Q1 – low-noise motor with high performance
Modications
K – KO non-return valve
K1– KO1 non-return valve
Options:
V – pull cord switch
T – turn-off delay timer
VT – pull cord switch and turn-off delay timer
TH – humidity sensor and turn-off delay timer
VTH – pull cord switch, humidity sensor and turn-off delay timer
Fan series
Base – fan without a decorative front panel
Base-I – fan with an operating indicator
Outlet duct diameter [mm]

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B
D
H
C
L
N
Model D B N L H C
100 Base (-I) 99 mm 140 mm 88 mm 101 mm 103 mm 56 mm
125 Base (-I) 124 mm 165 mm 88 mm 101 mm 125 mm 70 mm

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INSTALLATION AND SET-UP
Cut off power supply and make sure
electricity has been turned off.
Remove the front panel of the fan by
turning it counter-clockwise.
Mark the holes for fixing the fan and
the power cable.
QF
L N
Lead the power cable to the
ventilation hole, drill the mounting
holes and install the dowels.
Fix the fan with the screws. Connect
the fan to power mains according to
the wiring diagram.
Install the front panel by turning it
clockwise.

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Installation sequence for the decorative panel of the fan
To install the decorative panel on the
fan, remove the plugs.
Install the mounts and the decorative
panel. Supply power to the fan.
The decorative panel is not included in the delivery set, and is purchased separately for the fan.
1
2
2250
2250
750
750
600
600
R 600
1
2
3
1
1
3
3
22
2
2
1
2
2
The unit with a protection rating against access to hazardous
parts and water ingress IP24 is allowed to be installed in zones
2 and 3 according to the IEC 60364-7-701:2019.

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CONNECTION TO POWER MAINS
The fan is rated for connection to single-phase AC 220-240 V/50 (60) Hz power mains.
Terminal designations on wiring diagrams:
L — line LT— timer control line S — ON\OFF switch
N — neutral QF— automatic circuit breaker
Base(-I)
QF
L
L
N
N
S
Base(-I) VT/VTH
-
60% 90%
H
+
+
2min
30min
T
N
QF
LT
N
L
L

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Base(-I) T/TH
-
60% 90%
H
+
+
2min
30min
T
N
QF
LT
N
L
L
S
Base(-I) V
QF
L
L
N
N
DO NOT USE A METAL SCREWDRIVER, KNIFE, ETC. FOR ADJUSTMENT
OPERATIONS NOT TO DAMAGE THE CIRCUIT BOARD.

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ELECTRONICS OPERATION ALGORITHM
The fan with the timer T is started after actuation of the external switch, e.g. the light switch. The control voltage is supplied
to the input terminal LT (ST). 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 Vand VT models are turned on and off by an integrated pull-cord switch.
The fan with the timer and the humidity sensor H — the fan starts after the control voltage is supplied to the input
terminal S 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.
To set the maximum humidity setpoint 90 % set the potentiometer to Hmax position.
To adjust the fan turn-on delay time, turn the control knob Tclockwise to increase and counter-clockwise to decrease the
turn-on delay time respectively. To adjust the fan timer time, turn the control knob T clockwise to increase and counter-
clockwise to decrease the delay time respectively.
To adjust the humidity set point turn the control knob H clockwise to increase and counter-clockwise to decrease the
humidity sensor set point..
CAUTION!The timer circuit is live! Disconnect the fan from power mains prior to any adjustment operations. The
fan delivery set includes a specially designed plastic screwdriver for fan settings adjustments (only for models
equipped with a timer). Use it to change the turn-on and turn-o delay time and the humidity set point.
DO NOT USE A METAL SCREWDRIVER, KNIFE, ETC. FOR ADJUSTMENT
OPERATIONS NOT TO DAMAGE THE CIRCUIT BOARD.

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TECHNICAL MAINTENANCE
The fan maintenance periodicity is at least once per 6 months.
Maintenance steps:
Disconnect the fan from power supply and make sure
electricity has been turned off. Remove the front panel.
Clean the fan with a soft dry cloth or a brush.
Wash the front panel under running water.
Wipe the fan surfaces dry.
Attach the decorative and front panel to the fan. Connect
power supply.
CAUTION! Do not allow water or liquid come into contact with electric components!

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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.
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.

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MANUFACTURER’S WARRANTY
The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility.
We hereby declare that the product complies with the provisions of Electromagnetic Compatibility (EMC) Directive 2014/30/
EU of the European Parliament and of the Council, Low Voltage Directive (LVD) 2014/35/EU of the European Parliament and
of the Council and CE-marking Council Directive 93/68/EEC. This certificate is issued following test carried out on samples
of the product referred to above.
The manufacturer hereby warrants normal operation of the unit for 60 months after the retail sale date provided the user's
observance of the transportation, storage, installation, and operation regulations. Should any malfunctions occur in the
course of the unit operation through the Manufacturer's fault during the guaranteed period of operation, the user is entitled
to get all the faults eliminated by the manufacturer by means of warranty repair at the factory free of charge. The warranty
repair includes work specific to elimination of faults in the unit operation to ensure its intended use by the user within the
guaranteed period of operation. The faults are eliminated by means of replacement or repair of the unit components or a
specific part of such unit component.
The warranty repair does not include:
• routine technical maintenance
• unit installation/dismantling
• unit setup
To benefit from warranty repair, the user must provide the unit, the user's manual with the purchase date stamp, and the
payment paperwork certifying the purchase. The unit model must comply with the one stated in the user’s manual. Contact
the Seller for warranty service.
The manufacturer’s warranty does not apply to the following cases:
• User’s failure to submit the unit with the entire delivery package as stated in the user’s manual including submission
with missing component parts previously dismounted by the user.
• Mismatch of the unit model and the brand name with the information stated on the unit packaging and in the user's
manual.
• User’s failure to ensure timely technical maintenance of the unit.
• External damage to the unit casing (excluding external modifications as required for installation) and internal
components caused by the user.

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• Redesign or engineering changes to the unit.
• Replacement and use of any assemblies, parts and components not approved by the manufacturer.
• Unit misuse.
• Violation of the unit installation regulations by the user.
• Violation of the unit control regulations by the user.
• Unit connection to power mains with a voltage different from the one stated in the user's manual.
• Unit breakdown due to voltage surges in power mains.
• Discretionary repair of the unit by the user.
• Unit repair by any persons without the manufacturer’s authorization.
• Expiration of the unit warranty period.
• Violation of the unit transportation regulations by the user.
• Violation of the unit storage regulations by the user.
• Wrongful actions against the unit committed by third parties.
• Unit breakdown due to circumstances of insuperable force (fire, flood, earthquake, war, hostilities of any kind,
blockades).
• Missing seals if provided by the user’s manual.
• Failure to submit the user’s manual with the unit purchase date stamp.
• Missing payment paperwork certifying the unit purchase.
FOLLOWING THE REGULATIONS STIPULATED HEREIN WILL ENSURE A LONG AND TROUBLE-FREE
OPERATION OF THE UNIT.
USER’S WARRANTY CLAIMS SHALL BE SUBJECT TO REVIEW ONLY UPON PRESENTATION OF THE
UNIT, THE PAYMENT DOCUMENT AND THE USER’S MANUAL WITH THE PURCHASE DATE STAMP.