How to: Ultrafine 468 filter replacement and maintenance

Estimated Time: 10 Minutes

Pre-filter maintenance 

⚠️  Caution: Always disconnect power to the unit before servicing

  1. First, make sure all power to the unit is shut off.
  2. 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.
  3. 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 the child lock on top of the front cover.
  4. The 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.
  5. After pulling out the integrated mesh cover, you will see the replaceable VOC pre-filter laying underneath. Replace as necessary. 

High Energy Grid maintenance 

⚠️  Caution: Always disconnect power to the unit before servicing

1. Turn the safety lock on the high-energy grid from vertical to horizontal; gently pull out the high-energy grid and put it 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 the high-energy grid is cleaned with a damp cloth, air dry the grid before reinstallation.  

 

Main filter & VOC post-filter replacement 

⚠️  Caution: Always disconnect power to the unit before servicing

  1. Gently pull out the main filter and VOC post-filter cartridge. 
  2. Unwrap the plastic on both of your new filters prior to reinstalling them.  


Reinstalling your filters

⚠️  Caution: Always disconnect power to the unit before servicing

  1. 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.
  2. To reinstall the high-energy grid. Make sure the grid and safety lock are facing out towards the front of the unit (towards the cover). The safety lock needs to be on top.
  3. Turn the lever from horizontal to vertical to lock the high-energy grid in place.
  4. Put the pre-filter back on the inside of the door and secure the integrated mesh to hold it into place. There are 10 contact points that you will want to make sure are securely locked in place. 
  5. Lastly, put your door back on making sure that the upper tabs at the top of the unit go in first. If done so correctly everything should lock into place. 

          Reset respective indicators 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). 

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