How to: Ultrafine 468 filter replacement and maintenance

Estimated Time: 10 Minutes

Pre-filter set maintenance 

⚠️  Caution: Always disconnect power to the unit before servicing

  1. Remove the front cover of the main unit by grabbing both sides of about 1/3 of the distance from the bottom and pulling the bottom part away from the main body of the unit.
  2. When the bottom of the front cover is a few inches away from the main body, use both hands to pull the front cover down slowly to disable child lock on top of the front cover
  3. The cleanable integrated pre-filter is locked into the front cover. Use one hand to hold the front cover frame. Use one finger to grab the small ring and pull out the integrated pre-filter. Clean as necessary.
  4. After pulling out the integrated pre-filter, you will see the replaceable VOC pre-filter laying underneath. Replace as necessary.
  5. Put the integrated pre-filter back into the front cover by locking all the side tabs to the front cover frame. Make sure all tabs are secured in the holes. 

     

    High Energy Grid maintenance 

    ⚠️  Caution: Always disconnect power to the unit before servicing

    1. Turn the Safety Lock on High Energy Grid from vertical to horizontal; gently pull out the High Energy Grid and put aside on a secure, clean and dry surface.
    2. Use a clean microfiber cloth to wipe off the dust on the High Energy plate and High Energy Wires. If High Energy Grid is cleaned with a damp cloth, air dry High Energy Grid before reinstallation.
    3. Reinstall the High Energy Grid. High Energy Plate with holes and Safety Lock facing out towards the front of the unit (towards the cover). Safety Lock needs to be on top. Turn the lever from horizontal to vertical to lock the High Energy Grid in place. 

      Main filter & VOC post-filter replacement 

      ⚠️  Caution: Always disconnect power to the unit before servicing

      1. First, make sure all power to the unit is shut off.
      2. Energy Grid maintenance. Then gently pull out the main filter and VOC post-filter cartridge.  
      3. Unwrap the plastic bag on both the new main filter and the new VOC post-filter. 
      4. Reinstall the main filter and VOC post-filter cartridge. Make sure the VOC post-filter is facing inside (toward the motor/fan). The main filter must go all the way back in the inner housing toward the fan. 
      5. Reinstall the High Energy Grid following steps described above in the same section, Point 2-2 High Energy Grid maintenance. 

        High Energy Grid maintenance

        ⚠️  Caution: Always disconnect power to the unit before servicing

        1. First, make sure all power to the unit is shut off.
        2. After maintenance of the filters, simply put the front cover back and your unit will run like new. Carefully align the vertically protrudnew.
        3. Carefully align the vertically protrudnew. Carefully align the vertically protrudto secure to tabs. Then use care to align the horizon tab with the slot on the bottom of the unit.
        4. Make sure it is closed tightly. 

          Reset respective indicator after replacing/cleaning filters.

          ⚠️  Caution: Always disconnect power to the unit before servicing

          1. Reset pre-filter indicator: Hold filter 1/VOC pre-filter indicator for at least 5 seconds to reset the timer.
          2. Reset main filter indicator: Hold filter 2/main filter indicator for at least 5 seconds to reset the timer.
          3. Reset VOC post-filter indicator: Hold filter 3/VOC post-filter indicator for at least 5 seconds to reset the timer.
          4. Reset DFS indicator: Touch the DFS indicator button to turn DFS on or off.

            Note: When the indicator is reset, the respective red light will go out and the indicator will return to normal (illuminated in white).