SilentAir®4000
Air Purifier
Fanless Electronic Air Purifier
TM
TM
Important Safeguards!
When using an electrical appliance, always follow basic precautions,
including the following:
READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE
Warning:To reduce the risk of electric shock:
• Use indoors only.
• Do not remove the back cover of the air purifier. Doing so is dangerous and will
void the warranty of your air purifier.
• Do not operate air purifier with front cover removed.
• Keep the air purifier out of the reach of children or invalids.
• The use of an extension cord is not recommended.
• Turn off all controls before unplugging. Always disconnect cord from electrical
outlet before servicing the air purifier.
• Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
• Never handle plug or air purifier with wet hands.
• Do not pull or carry by cord. Do not use cord as a handle. Do not close door on
cord or pull cord around sharp edges or corners. Keep cord away from heated
surfaces.
• Do not use with damaged cord or plug. If the air purifier is not working as it
should, has been dropped, damaged, left outdoors, or dropped into water, contact
the HOOVER SilentAir Customer Service Center at 1-800-473-8520.
• Do not operate the air purifier near a shower, bathtub or sink.
• Do not operate the air purifier in a bathroom or in a place where steam may be
present.
• Do not immerse the air purifier in water or any other liquid.
• Do not operate the air purifier near a stove or heater.
• Keep the air purifier out of direct sunlight.
• Do not operate the air purifier where flammable gases such as oxygen, natural
gas or propane may be present.
• Do not put any object into the cover openings.
Save these instructions!
2
Fill in and retain
The model and serial number are located on the back of the air purifier.
For your personal records, please enter the COMPLETE model and serial
number in the spaces provided and retain this information.
Your air purifier is model___________________________________
and has serial number___________________________________
It is suggested that you attach your sales receipt to this owner’s manual.
Verification of date of purchase may be required for warranty service of
your SilentAir®product.
Index
Important Safeguards....................2
Carton Contents.............................3
Air Purifier Description ..................4
Assembly ........................................4
How to Use......................................5
Maintenance....................................5
Service.............................................6
If You Have a Problem...................7
Warranty ..........................................8
Replacement Parts.........................8
© 2002 The Hoover Company
3
Carton contents
Thank you for purchasing the Hoover™ SilentAir®4000
The SilentAir®purifier has been designed for simple, problem free operation. If you should happen to need
assistance, contact the
HOOVER SilentAir Customer Service Center
1-800-473-8520
www.silentair.com
B
A. Air purifier
B. Collection sheet packet
C. Stands (2)
Continued
A
C
1. Air Purifier Description
Assembly
1-1
1-2
1. Main body
2. Collection sheet change light
3. Power indicator
4. Ionization control
5. Collection sheet
6. Front cover
7. Aluminum plates
8. Ionization line
9. Cover screws (2)
10. Holding tabs (4)
Always disconnect cord from electrical outlet before servicing the air
purifier. Loosen cover screws (A)
and remove cover. (It is not necessary to remove the screws completely
to remove the cover.)
2
3
4
5
7
7
8
10
10
10
9
6
1
1-3 1-4
Carefully slide one collection sheet
(B) UNDER ionization line (C).
Place sheet under the four holding
tabs (D). (There are 4 tabs, 2 at the
top and 2 at the bottom.)
Reposition front cover. Tighten
screws.
1-5
Either a horizontal or vertical position
can be chosen.
Insert hooks on stand into holes on
back of purifier.
Slide stand up and snap in place.
1-6
B
C
D
A
4
Room Size Ionization Control Level
150 sq. ft.
300 sq. ft.
500 sq. ft.
Where to place the air purifier
1. Place your air purifier across the room from an air conditioner or heating
vent. If there are no vents in the room, place the air purifier near a return
air inlet.
2. Do not place furniture or large objects directly in front of the air purifier.
3. Place the air purifier at least 8 inches (20 cm) away from the wall.
4. In a bedroom, place the air purifier three to four feet (1.2 m) from the bed
side.
5. Placing the air purifier near an open window may reduce its efficiency.
Polarized plug
To reduce the risk of electric shock,
this appliance has a polarized plug
(one blade is wider than the other).
This plug will fit in a polarized outlet
only one way. If the plug does not fit
fully in the outlet, reverse the plug. If
it still does not fit, contact a qualified
electrician to install the proper outlet.
Do not change the plug in any way.
2. How to use
3. Maintenance
5
Continued
2-1
2-2
Ionization control
Plug cord into electrical outlet.
Turn ionization control (A) clockwise.
The green power light (B) will turn on.
Set the control level according to the size of the room where
you plan to use the air purifier.
The SilentAir®purifier is designed to work 24 hours a day,
seven days a week, regardless of the control level at which it
is set.
Collection sheet change
light
The collection sheet change light (C)
reminds you that it is time to change
the collection sheet.
Once every 30 days, the light will
flash red and the collection sheet
should be changed. (See Maintenance section)
Collection sheet
When to replace
The collection sheet should be
changed about once a month.
When the collection sheet change
light flashes, it is time to change the
sheet. If particle or smoke levels in
the room are high, the sheet may
need to be changed more frequently.
Please note that the collection sheet
change light is automatically reset to
a new 30-day period each time the
front cover is removed, even if the
collection sheet is not replaced. During normal operation, it is generally
not necessary to remove the front
cover unless replacing the collection
sheet. The collection sheet should be
changed at least once each month,
more often if particle or smoke levels
are high.
A
C
B
What to buy
To order collection sheets, call:
1-800-473-8520 or visit
www.silentair.com
Ask for part no. DCS-4000 (12 sheets
per pack)
C
Carefully slide a new collection sheet
(D) UNDER ionization line (C).
Place sheet under the four holding
tabs (E).
Reposition cover. Tighten screws.
The collection sheet change light will
now be reset.
Plug air purifier into electrical outlet
and turn ionization control to desired
setting.
Cleaning, removing or
replacing the ionization line
Note: Use care when handling the
ionization line. The line is very delicate and could break easily if mishandled.
Remove front cover as described for
replacing the collection sheet.
Carefully wipe clean the ionization
line (C), using a soft, lint-free cloth.
If desired, you may clean the collection plates (F) and the main body with
a slightly moistened cloth.
Allow air purifier to dry thoroughly.
3-4
3-6
Slide used collection sheet (B) out.
Be careful not to snag the ionization
line (C).
Discard used sheet.
6
3-2
3-5
3-3
To remove ionization line:
Grasp one end of the line and gently
stretch it to release ring (G) from hook
(H).
Remove opposite ring from hook.
Service
To obtain approved service, call the
HOOVER SilentAir Customer Service
Center at 1-800-473-8520, OR
Visit our website at
www.silentair.com
C
C
F
F
B
D
E
E
EE
H
G
3-7
To replace ionization line, slip the ring
at one end over the hook. Gently
stretch the line, holding the opposite
end, to place the other ring over the
opposite hook.
Replace front cover.
3-1
How to replace
Turn off air purifier and disconnect
from electrical outlet.
Loosen cover screws (A) and remove
cover. (It is not necessary to remove
the screws completely to remove the
cover.)
A
The ionization line should be cleaned
periodically for the quietest performance possible.
Turn air purifier off and disconnect
from electrical outlet.
7
5. If you have a problem
If your air purifier is not operating normally, the cause may be easily found by
reviewing the list below.
• Unit not firmly plugged into electrical outlet
•
Plug unit firmly into electrical outlet
• No voltage in wall outlet
•
Check fuse or breaker
• Front cover not secure
•
Check cover for proper placement
Problem: Power light not on
Problem: Collection sheet stays clean yet power is on
Problem: Air purifier is noisy
• Ionization line is loose
•
Disconnect from electrical outlet and check ionization line
• Air purifier is dirty
•
Disconnect from electrical outlet and clean ionization line, main body and
aluminum plates (Figs. 3-5 through 3-7)
• Air purifier is dirty
•
Disconnect from electrical outlet and clean ionization line, main body and
aluminum plates (Figs. 3-5 through 3-7)
•
Replace collection sheet
Problem: Strong ozone odor
• Ionization level set too high
•
Set ionization control to a lower setting
• Collection sheet and/or purifier is dirty
•
Disconnect from electrical outlet and clean ionization line, main body and
aluminum plates (Figs. 3-5 through 3-7). Replace collection sheet.
Problem: Light emitted from air purifier
• Common condition caused by static electricity.
No action required. Will not harm air purifier.
Problem: Aluminum plates discolored
• Occurs over time under normal operation
•
Discoloration will not harm product performance. Disconnect from electrical
outlet and, if desired, replace aluminum plates (part no. SAMP-4000).
Problem: Static interference on TV, computer or stereo
• Air purifier too close to other electrical equipment
•
Operate air purifier at least four feet (1.2 m) away from other
electrical equipment
• Air purifier and other electrical equipment share the same electrical outlet
•
Plug air purifier and other electrical equipment into separate outlets
Problem: Static sound coming from air purifier
• New collection sheet
•
Normal condition. Usually disappears in 24 hours.
One Year Limited Warranty (Standard)
Three Year Limited
Warranty honored if warranty card is returned (Optional)
This product is warranted to the original retail purchaser against defects in materials and workmanship for a period of one year from
the date of retail purchase. (Three years if product warranty card is returned.) If this product malfunctions or fails to operate due to a
defect covered by this warranty, The Hoover Company or its designee, will, at its option, repair the defective product or replace it
with a new product.
Persons covered: This warranty is extended to the original retail purchaser only and is not transferable.
Defects and costs covered: This warranty covers the cost of parts and labor for the repair of defects in materials and workmanship
occurring under normal use of the product, and shipping charges for the return of the repaired product to the purchaser.
Defects and costs not covered: This warranty does not cover any defect, malfunction or failure resulting from misuse or abuse of the
product, accidents, or the damage resulting from service or repair by anyone except The Hoover Company or its designee.
This warranty does not cover the cost of repair by a non-authorized service center. This warranty does not cover shipping charges
for the return of the defective product to the Hoover SilentAir Service Center. This warranty does not cover consequential dam-
ages, incidental damages or incidental expenses, including damage to property. Some states do not permit the limitation or
exclusion of consequential or incidental damages, so this limitation may not apply to you.
Warranty service: If your product requires service covered by this warranty, ship the product postage prepaid to: Hoover
SilentAir Customer Service Center, 1660 17th Street, Suite 120, Denver, CO 80202. It is recommended that the product be insured
during shipping, as damage resulting from shipping is not covered by this warranty. Include proof of the date of purchase.
Implied Warranties: Any implied warranties are limited in duration up to three years from the date of retail purchase. Some
states do not permit limitations on the duration if implied warranties, so this limitation may not apply to you.
For replacement parts and collection sheets, call toll free: 1-800-473-8520.
Dielectric Collection Sheets 12 sheets/set Part #DCS-4000
Dielectric Collecting Plates 2 plates/set Part #SAMP-4000
Ionization Line 1 line/set Part #SAIO-4000
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