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FFU Installation instructions page 5 (Pre-Filter Cleaning) Nov 22, 2018

Pre-Filter Cleaning

NOTE: Disconnect the unit from the electrical power source  before attempting service. Electrical service should be performed by a licensed electrician or authorized service technician.

NOTE: When performing any type maintenance on the FFU be careful to reduce as much as possivle the potential for introducing the internals of the unit to dirt, dust and debris that may be present in the unit external environment.

STEP 1: Gain access to the top of the unit by removing adjacent ceiling or access panel. 

STEP2: Remove filter by pushing filter to one side and sliding it out from under the brackets (non-ducted), or remove filter access door(ducted). Reference the below figures for further details.


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STEP 3: Clean pre-filter by hand washing in water with a mild detergent or by using a vaccum cleaner. Allow pre-filter to dry completely before replacing.

STEP 4: Reverse above steps to install the pre-filter.


HEPA Filter Removal and Repacement:

Replacement filters can be ordered through your local Sales Representative.Visit SAF website to locate your local representative

STEP1: Remove diffuser perforated face by turning quater turn fasteners holding face in place

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NOTE: Safety cables will be atttached to the diffuser face, but care should be taken to ensure that diffuser face does not swing and injure anyone.

STEP2: Remove filter by loosering cam latch bolts(filter retainer clips) by turning counter clockwise using your hands


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STEP3: Turn all cam latch filter retainers to the open position

STEP4: Remove filter by handling frame; do not tough filter media if re-using filter.

NOTE: Extreme caution should be taken when removing the filter if the filter is to be reinstalled. Touch the filter by the frame only; never touch the filter media as it can damage the filter.

STEP5: Installation of HEPA Filters to install new filter.


HEPA Filter Removal and Replacement

Replacement filter can be ordered through your local Sales Representative. 

STEP1: Remove unit from ceiling, gently placing FFU on a clean, dry surface.

NOTE: if the FL or ML filter option has been selected, it is recommended to rest the filter frame on 2x4 lumber to protect the LED light.

STEP2: Unhook latches attaching bench top replaceable filter to fan filter body

-ffu-installation-manual-127

STEP3: Remove filter by handling frame; do not touch filter media if re-using filter.

NOTE: Extreme caustion should be taken when removing the filter if the filte is to be reinstalled. Touch the filter by the frame only; never touch the filter media as it can damage the filter.