Flexit Nordic S4 User Manual
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Flexit Nordic S4 User Manual

Air handling unit
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See also: Instruction and Installation Manual , Quick Manual
115546EN-01
2018-02
Nordic S4
Flexit
GO
ART.NO. 800130, 800131, 800132, 800133
USER MANUAL
Air handling unit

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Summary of Contents for Flexit Nordic S4

  • Page 1 115546EN-01 2018-02 Nordic S4 Flexit ART.NO. 800130, 800131, 800132, 800133 USER MANUAL Air handling unit...
  • Page 2 N O R D I C S 4...

  • Page 3: Table Of Contents

    Contents Automatic control......................6 Functional description of balanced ventilation ............7 2.1. Fans (M1, M2) ......................... 7 2.2. Filters (FI1, FI2) ........................ 7 2.3. Rotor (HR-R) ........................7 2.4. Heating element (EB1) ....................7 2.5. Temperature sensors (B1, B4) ..................7 2.6. For use with dampers ....................
  • Page 4 N O R D I C S 4 Symbols used These products bear a number of symbols used for labelling the actual product and in installation and user documentation. Supply air Extract air Extract air from kitchen DANGER: DANGER! DO NOT ELECTRICITY TOUCH Exhaust air...
  • Page 5 SAFETY INSTRUCTIONS • • This unit is only designed for shock or injury, read all the safety ventilation air in homes and instructions and warning texts commercial buildings. before using the unit. • To maintain a good indoor climate, • All electrical connections must be comply with regulations and avoid condensation damage, the unit •...

  • Page 6: Automatic Control

    Alternative user interfaces: • Flexit GO app (standard) To control the air handling unit via a smartphone/ tablet, download the app from Google Play Store or See manual (116909) for automatic control system.

  • Page 7: Functional Description Of Balanced Ventilation

    2. Functional description of balanced ventilation 2.1. FANS (M1, M2) 2.6. FOR USE WITH DAMPERS The fans ensure that air enters and leaves the building. 2.6.1. Damper (DA1) They can be individually adjusted for optimal operation. There is a closing air damper in the exhaust air duct to prevent cold draughts.

  • Page 8: Operating The Door

    N O R D I C S 4 3. Operating the door 1. Turn the screw in the lock 90°. 2. Flip up the lock handle 3. The lock handle needs to be lifted right up to release. Therefore press the lock handle right up while opening the door.

  • Page 9: If A Door Needs To Be Removed

    3.1. IF A DOOR NEEDS TO BE REMOVED If there is limited space in front of the unit, the lock screw on the underside of the unit can be unscrewed (see Fig. 2) and the door pushed out sideways (see Fig. 3). In this case it can be open less than 40º.

  • Page 10: Cleaning And Maintenance

    N O R D I C S 4 4. Cleaning and maintenance grease solvent on a cloth (e.g. methylated spirits) and compressed air if possible. NB: Take care that the motor is not exposed to water. To take out the fans: 1.
  • Page 11 4.2. CHANGING THE FILTERS • Reduced performance of the unit • The unit becoming dirty • Humidity damage indoor air quality it is important to change them when • Reduced indoor air quality they are dirty. the degree of contamination of the air where they are at least once a year, preferably in the autumn (after 1.
  • Page 12 N O R D I C S 4 power and the air’s purity. prevent air leakage. working normally. Use the following checklist: • Check that the rotor rotates. Turn the rotor in the direction of rotation as shown on the rotor cassette. •...

  • Page 13: Changing The Brush Strips

    4.3. CHANGING THE BRUSH STRIPS The brush strips become worn over time. If they do not lie tightly against the rotary exchanger, it may be necessary to change them. Alternatively, they may be moved closer to the rotor, 2. Pull the cable lug out to disconnect the earth on the circuit board.
  • Page 14 N O R D I C S 4 7. Pull the rotor module right out and position it with the brush strips facing up. can be removed. 10. Pull the brush strips out of the groove. There are 4 brush strips on the rotor, 2 on each side. 11.

  • Page 15: Cleaning The Rotor

    4.4. CLEANING THE ROTOR Further cleaning is possible by removing the rotor, spraying it with a grease solvent and then blowing it clean from the opposite side. Distance approximately Ensure that the motor is not exposed to water during cleaning. Ensure that all seals around the rotor are intact and tight.

  • Page 16: Maintenance Table

    N O R D I C S 4 5. Maintenance table Component Action Interval Filter Filters must be changed at least once a year. It is best to change them twice a year, before and after 6-12 months Fans The fan in a unit connected to a kitchen hood should be inspected once a year. 12 months 3 years The fans should be cleaned as needed.

  • Page 17: Troubleshooting

    6. Troubleshooting Type of fault Remedial action Cold draughts Check which supply temperature has been selected. See control panel. Check that the rotor rotates. The rotor belt can be tightened by moving the rotor motor bracket* Check that heating comes on. Fans not working Check that power is connected to the unit.

  • Page 18: Ce Declaration Of Conformity

    Energy Labelling Directive Our products have been tested in accordance with parts of: 2006/42/EC Machine Directive (Safety) Producer: FLEXIT AS, Televeien 15, 1870 Ørje, Norway Type: Nordic S4 Air handling unit Complies with the following standards: Safety standard EN 60335-1:2012 + A11...
  • Page 19 N O R D I C S 4...
  • Page 20 FLEXIT AS, Televeien 15, 1870 Ørje, Norway www.flexit.no...

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