21 \ USER OPERATION MANUAL:
FHD-400 Series
Cole-Parmer
®
coleparmer.com
6 .8 Changing Out Filters
WARNING! Ensure persons removing filters are made aware of any potential hazards and that they are provided with any
necessary protective clothing and equipment.
Hazards associated with the removal and disposal of used filters will depend on the application of the hood. If an
activated carbon filter is used with hydrocarbon solvents, the filter will retain the solvents without loss, and can be
removed in the laboratory. The used filter should be sealed into a plastic bag prior to disposal, preferably by
incineration
.
If the filter has contained any dangerous materials such as asbestos dust or radioactive chemicals, operator
protection is advised, including the use of a respirator. The used filters may require disposal by a specialist
company
.
NOTE: CONSULT YOUR SAFETY OFFICER OR INDUSTRIAL HYGIENIST BEFORE REMOVING OR DISPOSING
ANY FILTERS.
Pre-Filters
The pre-filter is located below the main filter. Remove the perforated pre-filter tray. Remove the old pre-filter and place it
into a bag. Seal for disposal. Refit the new filter and refit the pre-filter tray.
Main Carbon / HEPA Filter
WARNING! Disconnect the power supply before removing filter access cover.
•
Remove the front cover to gain access to the filter. Loosen the filter clamps. Lift the filter slightly to break the seal
and then withdraw the filter. Place the filter in a plastic bag. Seal the bag for disposal.
•
Slide the new filter into position by pushing the filter fully into the module. Refit the front cover and lock it in
position
.
•
Please note, sometimes after new filters are fitted, it may be necessary to recalibrate the airflow system. This
procedure can be found in Calibration.
6.9 Airflow Adjustment
The speed controller on the cabinet can be accessed behind the main control panel
.
