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VNCF
USER'S MANUAL

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Summary of Contents for Serak-tech VNCF

  • Page 1 VNCF USER'S MANUAL...
  • Page 2: Table Of Contents

    VNCF Purpose р. 3 CONTENT Delivery set р. 3 Basic technical data р. 3 Fan designation key р. 4 Safety requirements р. 5 Fan structure р. 7 Mounting and preparation to operation р. 8 Mounting options р. 8 Mounting sequence р.
  • Page 3 VNCF The centrifugal fan VNCF, further referred as the fan, is designed for exhaust PURPOSE ventilation of living spaces, offices, shops, kitchens, WCs and other residential and public premises heated during winter time. The fan is suitable for ceiling or wall mounting.
  • Page 4: Fan Designation Key

    VNCF VNCХХХ 100 X X DESIGNATION Fan and filter type C - centrifugal F - synthetic filter FA - aluminium filter Number of speeds _ - the fan has one speed by default 3 - three-speed fan 100 - exhaust pipe diameter [mm] V - electrical switch modification...
  • Page 5: Safety Requirements

    VNCF Protection rating against access to dangerous parts and water penetration: SAFETY - IP 24 for fans with a synthetic filter; REQUIREMENTS - IP 34 for fans with aluminium filter. Disconnect the fan from power mains prior to all connection, adjustment, servicing and repair works.
  • Page 6 VNCF Take precautions to prevent penetration of smoke, carbon monoxide and other flame products into the room through open chimney flues or other fire-protection devices. Take also measures to disable gas back draft in case of using gas or open flame devices.
  • Page 7: Fan Structure

    7 - scroll casing, 8 - indicating lamp. The VNCF fan (fig, 1) consists of the casing 1 with the motor and impeller 6 assembled inside of the casing. The impeller 6 is located in the scroll casing 7. The frame 5 is locked inside the casing 1 and functions as a stopper in case of Through-the wall mounting.
  • Page 8: Mounting And Preparation To Operation

    VNCF The VNCF fans are suitable for wall and ceiling mounting. MOUNTING AND The mounting options are shown in fig. 2-7. PREPARATION In case of wall mounting (fig. 2) the fan is fastened to the wall with self-tapping screws TO OPERATION included into delivery set.
  • Page 9 VNCF Flush wall mounting with fastening brackets Flush wall mounting with construction foam Built-in recess mounting...
  • Page 10: Mounting Sequence

    VNCF Ceiling mounting with Ceiling mounting inside a specially fastening brackets designed recess MOUNTING SEQUENCE...
  • Page 11 VNCF...
  • Page 12: Fan Electrical Connection

    VNCF The fan shall be connected through the switch with the gap between the dead contacts not less than 3 mm for all poles. ELECTRICAL CONNECTION Mounting and connection examples of the fan are shown in fig. 13-31 and diagrams 1-6.
  • Page 13 VNCF...
  • Page 14: Wiring Diagrams

    VNCF Wiring diagram of the fan for connection to the external socket WIRING DIAGRAMS М В М S - light switch C - lighting lamp B - junction box M - fan diagram 1 E - external socket...
  • Page 15 VNCF Wiring diagram of the fan with built-in switch М В B - junction box М M - fan C - lighting lamp diagram 2 S - light switch...
  • Page 16 VNCF Wiring diagram of the fan without built-in switch through the external switch М В м м М B - junction box M - fan C - lighting lamp S - light switch Diagram 3 Sm - external switch of the fan...
  • Page 17 VNCF В Sм P3-1-300...
  • Page 18 VNCF Wiring diagram of the three-speed fan with external speed switch P3-1-300. В М Sм Sм B - junction box M - fan C - lighting lamp S - light switch Sm - external switch of the fan P3-1-300 (not included into delivery set)
  • Page 19 VNCF The fans with timer modification have the function of automatic shutoff after a time period between 2 and 30 minutes that is adjusted by rotating the potentiometer T clockwise to increase the turn-off time and counter-clockwise to decrease it respectively.
  • Page 20 VNCF Wiring diagram of the fan with timer/ timer and humidity sensor modification connected in parallel with the lighting lamp and controlled from a common switch. After the light in the room is turned off the fan continues operation within the time period set by the timer.
  • Page 21 VNCF The fans with timer and motion sensor modification have the function of the automatic turning-on in case of motion detection at the distance from 1m to 4m and the horizontal viewing angle range 100 as well as automatic turning off within the time period set by the timer from 2 to 30 minutes and adjusted by rotating the rotating the potentiometer T clockwise to increase the turn-off...
  • Page 22 VNCF Wiring diagram of the fan equipped with timer and motion sensor М В М B - junction box M - fan C - lighting lamp Diagram 6 S - light switch...
  • Page 23: Servicing And Maintenance

    VNCF Maintenance works are allowed after the fan is disconnected from power supply SERVICING AND network only. MAINTENANCE Maintenance means regular cleaning of the fan surfaces from dust and dirt. The synthetic filter should be replaced when clogged but at least once in 6 months.
  • Page 24 VNCF...
  • Page 25: Manufacturer'swarranty

    VNCF While purchasing the unit the Customer accepts the following warranty terms: MANUFACTURER'S Manufacturer hereby guarantees steady performance of the fan within 60 months since WARRANTY the date of its sale in accordance to the rules of transportation, storage, assembling and operation.
  • Page 26 VNCF NO LIABILITY FOR THE RELATED DAMAGES: The manufacturer is not responsible for any mechanical or physical damages resulting from the manual requirements violence, the unit misuse or gross mechanical effect. The indirect damages such as re-installation or re-connection of the unit, direct or indirect losses etc.
  • Page 27: Acceptance Certificate

    VNCF ACCEPTANCE Т CERTIFICATE VNCF Turbo ТН VNCFA ТР The fan is recognized as serviceable. Stamp of the acceptance inspector Manufacturing date Sold by (name of the vendor, stamp of the shop) Date of sale WARRANTY CARD V18EN-02...
  • Page 28 VNCF...

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