4. PRIOR TO USE
A. Remove any excess dust/dirt from exterior housing and control panel.
B. Be sure the HEPA Filter and Pre-Filters are installed properly with a
positive seal.
C. Insure the unit is connected to a dedicated 20Amp,
110/115 volt circuit.
D. Make sure unit is safely positioned as not to impede any entrances or
exits of the work area.
E. If applicable, check exhaust port connections for tight seal.
CAUTION: Insure your power cord is securely attached to the male
recessed plug. If any movement or play is detected, change power
cord immediately! If connection remains loose, immediately
replace the male recessed plug.
OPERATION
A. When utilized in containment, the AS-2000 should be positioned a
minimum distance away from the entrance and located towards the
center of the containment.
B. When using a HEPA lter, insure the lter is correctly installed and
sealed. Anchor and secure the lter utilizing the supplied retaining
brackets.
C. Install the Ring Filter and Pre-Filter pad into unit.
D. Position the unit on a at level surface and secure the casters using
the lock feature.
E. Insert the female end of your 20 amp rated, UL listed cord, into the
male recessed plug on control panel.
F. To begin operation, depress the power switch to either the low or high
position. Locate the dierential pressure gauge located on the control
panel. The gauge will register between 1.0” - 2.5” of water column. This
is the initial reading when lters are new and unused. This reading will
incrementally increase as lters become loaded with dust and debris.
When the gauge reaches 3.0” - 3.4” of water column; either one or all of
the lters are loaded and in need of replacement.
G. Pressing the power switch to the left will operate the unit in “Low” mode
equivalent to 1200 CFM.
H. Pressing the power switch to the right will operate the unit in “High”
mode equivalent to 2100 CFM.
5. REPLACEMENT OF FILTERS
The work atmosphere will impact the frequency of lter replacements. As
lters begin to load, the reading of the pressure gauge will increase
incrementally. When the Pressure gauge reads 3.0” - 3.4” or when airow
is greatly reduced, check the condition of lters.
CAUTION: If applicable, wear personal protective equipment during
lter replacement. Please observe all Federal, State, and Local
regulations regarding the handling and disposal of
hazardous materials.
PRE-FILTER REPLACEMENT
A. Set the power switch (diagram #20.1, item #3) to the o position.
Disconnect power supply.
B. Remove Black Filter Door (diagram #20.1, item #10) to expose the
lters.
C. Reach in and remove the Pre-Filter (diagram #20.1, item #18).
Dispose of Pre-Filter accordingly.
D. Replace the discarded Pre-Filter with a new Pre-Filter.
E. Reinsert the Black Filter Door.
F. Insert the female end of your power cord into the Male recessed plug
(diagram #20.1, item #1), and set the power switch to the “High”
position. If the reading on the pressure gauge exceeds 3.0” - 3.4”
of water column, the Ring Filter (diagram# 20.1, item #17)
should be inspected.
RING FILTER REPLACEMENT
A. Follow steps A-D listed above referencing Pre-Filter replacement.
B. Reach in and remove the Ring Filter (diagram# 20.1, item #17).
Dispose of Ring Filter accordingly.
C. Replace the discarded lter with a new unused Ring Filter.
D. Reinstall the Pre-Filter.
E. Reinsert the Black Filter Door.
F. Insert the female end of your power cord into the male recessed plug
(diagram #20.1, item #1), and set the power switch to the “High”
position. If the reading on the pressure gauge exceeds 3.0-3.4” of water
column, the HEPA or General Purpose Filter should be inspected.
HEPA/GENERAL PURPOSE
FILTER
A. Follow steps A-D listed above for Ring Filter replacement.
B. Locate the bracket thumbscrews (diagram #20.1, item #12). Loosen the
four bracket thumbscrews by turning them counter clockwise.
C. With all four thumbscrews loose, push the top of the lter brackets
(diagram #20.1, item #11) inward towards each other, and remove from
the front of the unit.
D. Firmly grasp the right and left sides of the HEPA or General Purpose
Filter (diagram #20.1, item #16), and pull the lter directly towards you.
Remove the used lter and dispose of accordingly
E. Carefully inspect the replacement HEPA/General Purpose Filter
gaskets for cracks, gaps or defects Any defective gaskets must be
replaced.
F. The HEPA and General Purpose Filters have two sides; one side has a
gasket, the other does not. Insert replacement HEPA or General Purpose
Filter, gasket side rst, into machine and press rmly against the housing’s
internal rib.
G. Reinstall the lter brackets. Once the brackets are installed, turn the
thumbscrews clockwise until tight. This will secure the main lter.
H. Reinstall Ring Filter and Pre-Filter. (Reference Pre-Filter and Ring Filter
Replacement).
I. Reinsert the Black Filter Door.
