VENTS RO 100 Axial Fans User Manual

: June 9, 2024
: VENTS

Table of Contents

RO 100 Axial Fans
DESIGNATION KEY
SHORT DESCRPTION
**ELECTRONIC CONTROL MODE
MAINTENANCE
Documents / Resources

AXIAL FANS
User’s manualwww.ventilation- system.com

RO 100 Axial Fans

WARNING
Disconnect the fan from power mains prior to any connection, servicing and repair operations.
Mounting and maintenance are allowed for duly qualified electricians with valid electrical work permit for electric operations at the units up to 1000 V after careful study of the present user’s manual.
The single-phase power grid must comply with the acting local electrical norms and standards.
The fixed electrical wiring must be equipped with an automatic circuit breaker. The fan must be connected to power mains through an automatic circuit breaker integrated into the fixed wiring system with the gap between the breaker contacts on all poles not less than 3 mm.
Check the fan for any visible damages of the impeller and the casing before starting installation. The casing internals must be free of any foreign objects which can damage the impeller blades. Misuse of the device or any unauthorized modification is not allowed.
The fan 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 product operation by the person(s) responsible for their safety. Do not leave children unattended and do not let them play with the product.
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 medium must not contain any dust or other solid impurities, sticky substances or fibrous materials. Do not use the fan in the environment containing hazardous or explosive materials and vapours, i.e. spirits, gasoline, insecticides, etc. Do not close or block the fan intake or extract vents in order to ensure the most effective air passage. Do not sit on the fan and do not put objects on the fan. Fulfill the requirements stated in this user’s manual.
Recycle at the end of the service life.
Do not dispose the product with unsorted municipal trash.

DESIGNATION KEY

VENTS RO 100 Axial Fans - DESIGNATION KEY

Designation key example:
VENTS RO 100 VTK – RO series fan with Ø 100 mm intake spigot diameter, equipped with a built-in switch, turn-off delay timer and a back valve.
Read the present user’s manual carefully before proceeding with installation works.
Compliance with the manual requirements ensures reliable operation and long service life
of the product. Keep the user’s manual available as long as you use the product.
You may need to re-read the information on the product servicing.
Thank you for purchasing the fan made by VENTS. The stylish fan design matches well with any modern interior. We do hope that you are happy with your fan’s performance quality.
DELIVERY SET
The delivery set includes:

Fan – 1 item;
Screws and dowels – 4 items;
Plastic screwdriver (only for modifications with timer) – 1 item;
User’s manual;
Packing box.

SHORT DESCRPTION

The product described herein is an axial fan for exhaust ventilation of small and medium-sized remises heated during winter time. The fan is made of white plastic. The fan design may include a back valve to prevent air back drafting when the fan does not run. The fan is designed for connection to Ø 100 mm air ducts.
Due to constant improvements the design of some models may slightly differ from that one described in this manual.
OPERATION RULES
The fan is designed for connection to single-phase ac 220-240 V / 50 Hz or 12 V / 50 Hz power mains depending on a specific model. The fan is designed for continuous operation always connected to power mains.
Air flow direction in the system must match the pointer direction on the fan casing.
Protection degree index according to IP rating against access to hazardous parts and water ingress – IP24.
The fan is rated for operation at the ambient temperature ranging from +1°C up to +45°C.
The fan is double-insulated and requires no grounding.
MOUNTING
The fan is designed for ceiling or wall mounting to extract air into a ventilation shaft or matching air duct of respective diameter (fig. 2). For fan mounting sequence, refer to fig. 3-11. The fan wiring diagrams are shown in fig. 12-19. Terminal designation keys at wiring diagrams:

L – live terminal (only for 220-240 V power mains);
N – zero terminal (only for 220-240 V power mains);
LT – timer control line;
S – external switch;
S1 – external fan switch;
QF – circuit breaker.
WARNING! The fan rated for 12 V power mains (marked on the fan casing) connect to 12 V power mains only!

**ELECTRONIC CONTROL MODE

**

The fan with timer T is turned on after the external switch, for example, the light switch, supplies control voltage to the input terminal LT (ST). After the control voltage is disconnected the fan continues running within a time period set by the delay timer, adjustable from 2 to 30 min. The model VT is switched on and off by the internal pull cord switch.
The fan with timer T1 is turned on after the external switch, for example, the light switch, supplies control voltage to the input terminal LT (ST) and the turn-on delay timer is activated. The fan start-up is disabled before the timer countdown is finished. The turn-on delay time is adjusted over two ranges – from 10 to 90 seconds and from 2 to 30 minutes. Selection of the required adjustment range is effected with a jumper on the timer circuit board. After the control voltage is off the fan continues operation within the time period set by the timer from 2 to 30 minutes.
The fan with the timer and humidity sensor TH is turned on after control voltage supply to the input terminal LT (ST) or after the indoor humidity H exceeds the set point from ~60% to ~90%. After the control voltage is off or if the humidity level drops below the set point the fan continues operating within the set time period from 2 to 30 minutes. To set the maximum humidity set point, turn the potentiometer control knob to H max (90%) position.
To adjust the turn-on delay time turn the control knob of Tz potentiometer clockwise to increase the set point and counterclockwise to decrease it.
To adjust the turn-off delay time turn the control knob of T potentiometer clockwise to increase the set point and counterclockwise to decrease it.
To adjust the humidity set point turn the control knob of H potentiometer clockwise to increase the humidity set point and counterclockwise to decrease it.
Warning! The timer circuit is under mains voltage. 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. Use the screwdriver to alter the turn-off delay time or the humidity threshold, see fig. 21. Do not use a metal screwdriver, knife, etc. for adjustment operations not to damage the circuit board.

MAINTENANCE

The product surfaces must be regularly cleaned from dirt and dust, fig. 22-27. For cleaning use a soft cloth or brush wettd in a mild detergent water solution. Avoid water dripping on the electric components. Wipe the surfaces dry after cleaning.
TRANSPORTATION AND STORAGE RULES
Transport the product by any transportation vehicle in the manufacturer’s original package. Store the delivered product in the manufacturer’s original packing box in a dry ventilated premise with the temperature range from +5ºC up to + 40ºC and relative humidity less than 80%. The storage environment must not contain dust, acid or alkali vapours that may cause corrosion of the product parts.
Mounting, connection and maintenance are shown based on the fan SO 100. Mounting, connection and maintenance procedures for the other models is the same.
MANUFACTURER’S WARRANTY
The fan is manufactured at the factory of “Ventilation systems” PrJSC (hereinafter referred to as the Manufacturer). By purchasing this product the customer confirms to have read and agreed to the terms, rules and requirements related to operation, storage, transportation, mounting, adjustment, connection, maintenance and repair as well as warranty obligations with respect to this product as set forth in the manufacturer’s accompanying documentation to the product. The manufacturing company sets forth the warranty period (service life) of the product as 60 months following the sale date via retail network subject to the customer’s ensuring compliance with the rules of transportation, storage, mounting and operation of the product. In case of any malfunction of the product through the fault of the Manufacturing company within the warranty period (service life), the customer shall have the right to elimination of the manufacturing defects by means of warranty servicing performed free of charge. The warranty servicing implies performance of activities related to elimination of defects in the product aimed to provide intended use of the product by the customer. The defects are eliminated either by replacing or repairing such a product or a part (component) thereof.
WARNING!
With the purpose of performing warranty servicing you please produce User Manual or other relevant substituting document and the payment document as an evidence of the purchase with indication of the sale date. The product model shall comply with that one specified in the User Manual or other relevant substituting document.
With the purpose of performing warranty servicing please contact the trade company where you purchased the product. If warranty servicing on the spot proves impossible, you will be provided with the necessary information regarding rendering of this service.
Manufacturer’s warranty shall not apply in the following cases:

in case the customer fails to provide the product in complete according to the package contents specified
in the User Manual or other relevant substituting document, including any components disassembled by the customer;
in case of incompliance of the model or marking of the product with data specified on the product packaging and in the User Manual or other relevant substituting document;
in case of non-timely technical maintenance of the product by the customer (dust, mud, oil condensate, foreign particles);
in case of causing external damage to the product by the customer (‘damage’ shall not apply to external changes of the product required for the product mounting);
in case of altering the product design or further reworking of the product;
in case of replacing and using parts, units and components of the product not prescribed by the manufacturing company;
in case of other use of the product other than intended use;
in case of the customer’s violating product operation rules;
in case of connecting the product to electric mains of voltage exceeding voltage value specified in the user’s manual;
in case of step voltage that resulted in the product failure;
in case of the customer’s performing unauthorised repair of the product;
in case of performing repair of the product by third persons unauthorized by the manufacturing company;
in case of warranty period (service life) expiry;
in case of the customer’s violating transportation rules assuring prevention of damaging and/or destruction of the product;
in case of the customer’s violating product storage rules;
in case of performing unlawful actions by third persons with respect to the product;
in case of force majeure (fire, flood, earthquake, war, hostilities of any kind, blockade);
in case of absent seals, provided such seals are prescribed by the User Manual or other relevant substituting document;
in case of unavailable warranty card;
in case of unavailable payment document to confirm the purchase with indication of the sale date.

The manufacturing company shall be responsible for defects arising through its fault prior to the moment of transferring the product to the ownership of the customer. The manufacturing company shall not be responsible for defects arising after transferring the product to the customer and caused by the customer’s violating the rules of transportation, storage, assembly and operation of the product, or by actions of third persons, an accident or force majeure circumstances.
The manufacturing company shall not be responsible for damage to health and property of the customer caused by the customer’s violating the User Manual or other relevant substituting document; other use of the product by the customer other than its intended use, or by failure of the customer to comply with warnings and other information on the product specified in the User Manual or other relevant substituting document, or by the customer’s violating the rules of transportation, storage, mounting, maintenance and operation of the product.

VENTS RO 100 Axial Fans - FIGURE 1 | VENTS RO 100
Axial Fans - FIGURE 2
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