1
FU-28H-S
S4616FU28HS//
AIR PURIFIER
In the interests of user-safety (Required by safety regulations
in some countries) the set should be restored to its original
condition and only parts identical to those specified should be
used.
SERVICE MANUAL
FU-28H-S
MODEL
SHARP CORPORATION
Page
SAFETY PRECAUTIONS ..................................................................................................................................2
HOW SHARP AIR PURIFIER WORKS .............................................................................................................4
SPECIFICATIONS FOR THIS PRODUCT ........................................................................................................5
NAMES OF PARTS .......................................................................................................................................... 7
INSTLLATION................................................................................................................................................... 8
ABOUT THE FUNCTION................................................................................................................................ 14
ELECTRIC CIRCUIT........................................................................................................................................15
TROUBLESHOOTING GUIDE ........................................................................................................................22
REPLACEMENT OF MAIN PARTS .................................................................................................................24
OPERATION....................................................................................................................................................29
MAINTENANCE...............................................................................................................................................30
CUMULATIVE TIME CHECK FUNCTION (MAINTENANCE MODE)............................................................. 32
USE RESIN TABLE .........................................................................................................................................33
REPLACEMENT PARTS LIST ........................................................................................................................34
TABLE OF CONTENTS
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FU-28H-S
SAFETY PRECAUTIONS
When using electrical appliances, basic safety precautions should be followed, including the
following:
WARNING
- To reduce the risk of electrical shock, fire or injury to persons:
• Read all instructions before using the air purifier.
• Use only a 220-240 volt outlet .
• Do not use the air purifier if the power cord or plug is damaged or the connection to the wall
outlet is loose.
• Periodically remove dust from the power plug.
• Do not insert fingers or foreign objects into the intake or air outlet.
When removing the power plug, always hold the plug and never pull the cord.
Electrical shock and/or fire from short circuit may occur as result.
• Do not use this air purifier near gas appliances or fireplaces.
• Remove the power plug from the wall outlet before cleaning the unit and when not using the
unit.
Electrical shock from bad insulation and / or fire from short circuit may occur as a result.
• If the power cord is damaged, it must be replaced by the manufacturer, its service agent, Sharp
authorized service or similarly qualified person in order to avoid a hazard.
• Do not operate when using aerosol insecticides or in rooms where there is oily residue, incense,
sparks from lit cigarettes, chemical fumes in the air or a humidity condition.
• Use care when cleaning the air purifier. Strong corrosive cleansers may damage the exterior.
• Only Sharp Authorized Servicers should service this air purifier. Contact the nearest Servicer for any
problems, adjustments, or repairs.
• The batteries must be removed from the remote control before disposal, and the batteries must be
disposed of safely.
CAUTIONS CONCERNING OPERATION
• Do not block the intake and air outlet.
• Do not use the unit near or on hot objects, such as range or where it may come into contact with
steam.
• Always hold the main unit when moving it.
Holding the front panel when carrying may cause it to detach, thus dropping the unit and resulting in
bodily injury.
• Do not operate the unit without the filter.
• Do not wash the Active Carbon Filter and the HEPA Filter.
Not only it does not improve filter performance, it may cause electric shock or malfunction.
• Clean the exterior with a soft cloth only.
The unit surface may be damaged or cracked.
In addition, the sensor may malfunction as a result.
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FU-28H-S
REMOTE CONTROL LIMITATIONS
DO NOT USE THE REMOTE CONTROL IN THE FOLLOWING LOCATIONS:
• Any location where there is inverter lighting equipment or electronic spontaneous lighting
equipment
The remote control may become inoperative. In this case, move away from such lighting equipment or
change direction.
• Location exposed to direct sunlight or fluorescent.
The unit may not receive signals from the remote control.
CAUTIONS WHEN MOUNTING THIS PRODUCT ON A WALL
• Avoid a location where the sensor is exposed to direct wind.
The unit may not operate properly.
• Avoid a location where curtains, etc., come into contact with the intake or air outlet.
Curtains, etc., may become dirty or a malfunction may occur.
• Avoid locations where the unit is exposed to condensation, due to drastic temperature changes.
• Place on a stable surface with sufficient air circulation.
• Install the unit on a wall, wooden pillar, crosspiece, etc. that is flat and strong enough.
• Do not install the unit on a thin wall or on plasterboard. The unit may fall down if installed on an
insufficiently strong wall.
• To install the unit on a wooden wall that is less than 10 mm thick, consult your dealer and have
them confirm the strength of the wall before installation.
• Always hold the main unit when moving it.
Holding the front panel may cause it to become detached, thus dropping the unit and resulting in
bodily injury.
• Do not install when there is generation of lampblack, such as in a kitchen, etc.
The unit surface may crack or the sensor may malfunction as a result.
FILTER GUIDELINES
• Follow the instructions in this manual for correct care and maintenance of the filters.
This equipment complies with the requirements of Directives
89/336/EEC and 73/23/EEC as amended by 93/68/EEC.
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FU-28H-S
HOW SHARP AIR PURIFIER WORKS
An air purifier draws in room air from its air intake, lets the air pass through an Active Carbon Filter (Deodorizing
Filter) and a HEPA Filter (dust collection filter) inside of the unit, then discharges the air from its air outlet.
The air purifier unit repeats this process by moving its internal fan.
As air passes through, the HEPA Filter can remove dust particles. The Active Carbon Filter gradually absorbs odour
elements as they repeatedly pass through the filter.
(Odour elements are absorbed by HEPA Filter as well.)
Some odour ingredients absorbed by the filters may become separated and may be discharged through the air outlet
and result in additional odour.
Depending on the usage environment, this odour may become strong in a shorter period than expected.
In this case, purchase the optional replacement filter kit FZ-28SEF.
NOTE
The air purifier is designed to remove air-suspended dust and odour, but not harmful gases (for example, carbon
monoxide contained in cigarette smoke). Neither can it completely remove odours that are always present (for
example, odours from construction materials and pet odours).
HEPA Filter
Active Carbon Filter
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FU-28H-S
SPECIFICATIONS FOR THIS PRODUCT
1.Specifications
Type
FU-28H-S
Power supply 220 - 240V 50/60Hz
Fan level adjustment Max Silent
Rated power (W) 29 3.1
Fan level (m 3 /hour) 168 30
Fan rotation speed (r.p.m.) 1000 ± 10 330 ± 10
Noise (dB) 46 14
Applicable floor area 1 Around ~ 21m
2
Dust collecting method Mechanical purification
Protective devices Current fuse Turning off when abnormal current (2.5A) flows
Control panel Power ON/OFF, Fan control, OFF timer
Operation indicator light Plasmacluster indicator light (blue), Auto, Max, Silent
OFF-Timer 1 hour, 4 hours
Remote control Operation mode
Power ON/OFF, Auto, Fan control (manual), OFF-timer
OFF TIMER time 1 hour, 4 hours
Outside dimension (mm) 482 (W) x 142 (D) x 337 (H)
Weight (kg) 6.2
Cord length (m) 2.5
Installation Wall mounting
Accessories HEPA filter, Active carbon filter, remote control , 2 AA batteries, Wall mounting Kit (Wall
mounting braket, Wood screws[4], Fisher plugs[4])
Replace the filter 2 HEPA filter : 12 months
Active carbon filter : 12 months
Option Replace filter : FZ-28SEF (1 HEPA Filter, 1 Active Carbon Filter.)
1: The size of the room to be referred to is the one in which dust concentration of 1.25mg/m 3 may be reduced to
0.15mg/m 3 within 30 minutes under the condition that the natural ventilation is performed once per hour.
2: Ten cigarettes are smoked per day in the place where the air cleaner is installed.
Reduction of stand-by power consumption
While this product is plugged in, it consumes the stand-by power of approximately 1.0W to activate the electric circuit
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FU-28H-S
2.External dimentions
1) Simple substance figure
482
[Length unit : mm]
337
139.5
2) Wall tapestry figure
9
141.5
337
482
[Length unit : mm]
Wall
Wall
Wall
Wall
Wall
Wall
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FU-28H-S
NAMES OF PARTS
MAIN UNIT DISPLAY
Plasmacluster Indicator Light
Fan Speed Indicator Lights
OFF Timer Display Indicator Lights
Remote Control Receiver
Power ON/OFF button
Fan Control button
OFF Timer button
Odour Sensor
Filter Frame
HEPA Filter (white)
(with Microbial Control Filter)(blue)
Active Carbon Filter
(Deodorizing Filter)
Stainless Steel Pre-Filter
Front Panel
BACK
Power Cord
Adjusting Guide
Power Cord
Power Plug
ACCESSORIES
Remote Control
(1 unit)
Battery
(R6(AA) battery X 2 )
Operation Manual
Wall mounting kit
• Wall mounting bracket
• Wood screws (4 pcs)
• Fisher plugs (4 pcs)
Air Outlet
(Shape of plug
depends on country)
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FU-28H-S
INSTALLATION
FOR APPROPRIA TE INST ALLATION
To remove room odour
Installing the unit high up on the wall is most effective.
To remove room dust
Comparatively large dust particles such as pollen and house dust collect in the lower strata of the
room air.
Select a location in the room where the air circulation is good.
This improves the cleaning performance and causes Plasmacluster ions to spread throughout the
room.
Operating Conditions
Please operate the unit under the following conditions.
It is recommended to use the unit in a room where the temperature is in the range of 0 - 35C°.
Avoid locations where the unit is exposed to condensation, due to drastic temperature changes.
Installation Cautions
• Before fixing the wall mounting bracket, make sure there is nothing that could obstruct installation of the unit.
Then fix the wall mounting bracket through screw holes with the supplied wood screws.
• Install the unit on a wall, wooden pillar, crosspiece or the like that is flat and strong enough..
• If the wall is weak or made of concrete, have the unit installed by a specialist such as an electric appliance
store.
• Avoid locations near inverter lamps or where the unit is exposed to direct sunlight.
1
Determine the mounting location
Leave space around the bracket referring to the drawing below. The unit cannot
be mounted if there is insufficient spacing around the bracket.
207mm
337mm (Size of main unit)
48mm
54mm
235mm
482mm (
Size of main unit)
Power cord
330mm
16mm
60mm
3mm
92mm
Wall mounting bracket
Screw Holes
Screw Holes
Size of main unit
70cm or more from
side wall
70cm or more from
side wall
Center line of Wall mounting bracket
Center line of main unit
Center line of
main unit
45cm or more
from the ceiling
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FU-28H-S
Installation on a
wooden pillar
ø5mm
35mm
Installation on a
wooden crosspiece
Wood screws (4)
Wooden pillar
Caution
• To install the unit on a wooden wall that is less than 10 mm thick, consult your
dealer and have them confirm the strength of the wall before installation.
• Install the unit on a wall, wooden pillar , crosspiece, etc. that is flat and strong
enough.
• Make sure that the unit is installed in an upright position, without leaning to
the right or left.
Wooden crosspiece
Wall mounting bracket
Hole on the wall
Fisher plug
Wood screw
2
Mount wall mounting bracket
•Mount the bracket using the included wood screws so that it is maintained level.
Installation on a concrete, block or mortar surface
Drill holes of at least 35 mm depth and 5 mm diameter into the wall, drive in
Fisher plugs, and fix the unit with wood screws.
Installation on a wooden pillar, crosspiece or other wooden surface
Use wood screws for installation.
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FU-28H-S
Before starting the wall installation, be sure to remove the front panel
and filter frame.
In case the power plug to
be lead to the left of the
unit.
Do not wire the
power cord right
below the wall
mounting bracket.
Power cord adjusting guide
In case the power plug to be lead
to the right of the unit.
Cautions
•To avoid scratching or damaging the unit, place it on a soft piece of cloth
until it is installed on the wall.
•Do not lead the power cord together with other cord and do not twist it.
•Never modify the power cord.
•Take care not to damage the power cord.
Front Panel
Filter Frame
Air Outlet
1
2
3
Install the unit on the wall.
1
Place the unit facing
up, remove the Front
Panel and Filter Frame.
2
Adjust the length of the power cord.
1
Measure the distance between the unit and the wall outlet.
(Refer to E-6)
2
Place the unit face down, and insert the
power cord into the power cord adjusting guide so as to adjust it to the measured length.
Power Cord
Adjusting Guide
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FU-28H-S
3
Apply a mark (tape, etc.) 8 cm above both ends of the wall mounting
bracket.
4
Lift up the unit so that the hooking holes on the unit are aligned with
the marks, hook the unit onto the wall mounting bracket and slide it
to the right.
When positioned correctly, the unit will move down slightly until it
engages.
Alignment with the right hooking holes
Alignment with the left hooking holes
5
Double-check the installation.
Make sure that the claws of the unit are hooked in properly . If they are
not, the unit will move sideways. In addition, the unit may fall off the
wall and be damaged.
•Make sure that the power cord is not caught in the unit.
6
Remove the mark.
Wall mounting bracket
HOW TO REMOVE THE UNIT
Pull the power plug out of the wall outlet and remove
the Front Panel and Filter Frame. Holding the unit by
its lower corners, lift it up slightly, then slide it to the
right or left and lift it off toward the top.
1
2
2
2
1
mark
about 8 cm
claw socket
about 8 cm
mark
claw socket
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