Flexit UNI 4 User Manual
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Flexit UNI 4 User Manual

Air handling unit & automatic control
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110673EN-13
2022-02
UNI 4
User Manual
Air Handling Unit & Automatic Control

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Summary of Contents for Flexit UNI 4

  • Page 1 110673EN-13 2022-02 UNI 4 User Manual Air Handling Unit & Automatic Control...

  • Page 2: Table Of Contents

    1.1. Fans (M1, M2) ......................... 4 1.2. Filter (FI1, FI2) ......................... 4 1.3. Heat recovery system (HR-R) ..................4 1.4. Heating element (EB1) (for UNI 4 E) ................4 1.5. Temperature sensors (B1, B4) ..................4 2. Operation of Handheld Terminal ..................5 2.1.
  • Page 3 UNI 4 User Manual Important Safety Instructions: It is the installer’s responsibility to carry out a full safety and function assessment of the appliance. • • • • • • • Tumble driers should not be connected to the unit To maintain a good indoor climate, comply with regulations and, to avoid condensation damage, the unit must never be stopped apart from during service/maintenance or in connection with an accident.

  • Page 4: Functional Description Balanced Ventilation

    1.3. HEAT RECOVERY SYSTEM (HR-R) HR-R heat is transferred to the supply air. 1.4. HEATING ELEMENT (EB1) (FOR UNI 4 E) Fig. 2 1.5. TEMPERATURE SENSORS (B1, B4) reset button temperature of the outdoor air.

  • Page 5: Operation Of Handheld Terminal

    UNI 4 User Manual Operation of Handheld Termi- 2.2. SIDEWAYS WALL-MOUNTED UNIT NB! A sideways mounted unit must have a strap and end studs installed, so that the 2.1. HORIZONTALLY WALL-MOUNTED UNIT when opened. Ensure that the end studs and strap are installed Fig.

  • Page 6: Horizontal Unit

    UNI 4 User Manual 2.3. HORIZONTAL UNIT Ensure that the end studs and strap are installed 40-105° Fig. 8 Fig. 9 MAX 105° MAX 105° 40-105° 2.4. FOR NECESSARY REMOVAL OF DOOR CAUTION! The door weighs 10kg, take care when removing it.

  • Page 7: Cleaning And Maintenance

    UNI 4 User Manual Cleaning and Maintenance CAUTION! Before opening the door: switch minutes to remove hot air, disconnect power from the unit and wait 2 minutes before opening the doors. CAUTION! For safety reasons, always mount maintaining the ventilation unit! 3.1.

  • Page 8: Filter

    Check that the filter’s seal is intact before inserting the filter. Then push the filter properly into place to prevent air leakage. CAUTION! The unit must not be used without a filter. It is important to use a Flexit original filter.
  • Page 9 UNI 4 User Manual Fig. 16 slot, push it properly to prevent air leakage. Fig. 17...

  • Page 10: Replacing The Brush Strips

    UNI 4 User Manual 3.3. REPLACING THE BRUSH STRIPS Do the following: Fig. 18 Fig. 20 Fig. 21 level 1 level 2 Fig. 19...

  • Page 11: Rotor

    UNI 4 User Manual 3.4. ROTOR 3.6. EXTERNAL CLEANING NB! Do not use abrasive cleaners or scouring powder, as such products can damage the surfaces. Do not use cleaners Ensure that all seals around the rotor are intact and containing citric acids or ammonia. Products that and that the rotor rotates freely.

  • Page 12: Ci60 Control Unit Overview

    UNI 4 User Manual CI60 control unit overview Description Description speed speed...

  • Page 13: Ci60 In Use

    UNI 4 User Manual CI60 in use 5.4. TEMPERATURE ADJUSTMENT 5.1. GENERAL 5.2. INCREASING/REDUCING AIR SUPPLY ITEM 10 5.5. FILTER REPLACEMENT Used if there is a need for increased air supply on replacement. usually used for limited periods of time.

  • Page 14: Ci600 Control Unit Overview

    UNI 4 User Manual 5.7. RESET company or distributor. been repaired correctly. CI600 control unit overview Description...

  • Page 15: Ci600 In Use

    UNI 4 User Manual CI600 in use 7.1. GENERAL TIME AND DATE TIME DAY MONTH YEAR 7.2. IDLE MODE 13 : 45 04.07.09 45 04 07 09 13.08.2009 16:43 18°C 22°C - NORMAL current menu screen. 7.4. START MENU Time and date...

  • Page 16: Ci600 Main Menu

    UNI 4 User Manual CI600 main menu 8.2. MAX. TIMER 8.1. FAN SPEEDS menu item. fan symbols and bold font. MAIN MENU MAIN MENU NORMAL NORMAL MAX TIMER MAX TIMER SETTINGS > SETTINGS > and 3. selection. MAIN MENU 8.3.

  • Page 17: Timer

    UNI 4 User Manual 8.6. DAILY/WEEKLY TIMER day. a source of heat. DAY / WEEK SETTINGS MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY NB! This is not possible if the unit is installed with a SATURDAY water battery. SUNDAY symbol is displayed when the display enters idle mode.

  • Page 18: Time And Date

    UNI 4 User Manual 8.7. TIME AND DATE TIME AND DATE TIME DAY MONTH YEAR 13 : 45 04.07.09 45 04 07 09 8.10. ALARM 8.8. LANGUAGE LANGUAGE NORSK ALARM ENGLISH SVENSKA RESET ALARM DEUTCH NEDERLANDS SUOMI DANSK 8.9. FILTER 8.11.

  • Page 19: Ci600 Advanced User Menu

    REGULATION EXTR OK? MAX SUPPLY AIR TEMP 35° MIN SUPPLY AIR TEMP 15° PIN CODE 1 0 0 0 Cooling NB! Flexit does not supply or project cooling machines. 9.2. ADVANCED USER Information COOLING COOLING MIN OUTDOOR TEMP 18° MIN SPEED...

  • Page 20: Fan Control

    UNI 4 User Manual Neutral zones SUPPLY AIR neutral zones can be set in this menu. MIN SPEED NORMAL SPEED 100% MAX SPEED NEUTRAL ZONE COOLNESS RECOVERY 2° HEAT RECOVERY SYSTEM 1° Factory settings: External temperature control Timer menu. EXT. TEMP. CONTROL EXT.
  • Page 21 UNI 4 User Manual 9.5. CONFIGURATION Fire/Smoke connected to the control card. CONFIGURATION FIRE/SMOKE > SENSORS > MODE FIRE/SMOKE COMMUNICATION START/STOP SEQUENCE > REST MODE > Sensors Mode Supply air fan Extract air fan The temperature sensors can be calibrated in this menu...

  • Page 22: Operating Time

    UNI 4 User Manual Standby mode De-icing display enters idle mode. Start temperature REST MODE here. TIME DELAY 2 min OK? temperature. Period time Frequency per hour. 9.6. OPERATING TIME Rotor speed Start fan reduction OPERATING TIME OPERATING TIME 312 tim...

  • Page 23: Menu Tree

    UNI 4 User Manual 9.8. MENU TREE FILTER...

  • Page 24: 10. Maintenance Table

    UNI 4 User Manual 10. Maintenance Table Component Action Interval Filters Fans The fan in a unit connected to a kitchen hood should be inspected once a year. 3 years The fans should be cleaned as needed. Rotor Check that the seals in the unit are intact.

  • Page 25: 11. Troubleshooting

    UNI 4 User Manual 11. Troubleshooting Type of fault Remedial action Check that the thermostat has not cut out. Check the speed the unit is set to.

  • Page 26: 12. Complaints

    UNI 4 User Manual 12. Complaints Warranty claims will only be valid if the instructions in the manuals have been followed. Complaints about this product may be raised in accordance provided that the prod- uct has been used and maintained correctly.
  • Page 27 UNI 4 User Manual...
  • Page 28 Flexit AS, Televeien 15, N-1870 Ørje The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings. Flexit participates in the ECP programme for RAHU.

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