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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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Содержание FU-28H-S

Страница 1: ...uld 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 3...

Страница 2: ... 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 neare...

Страница 3: ...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...

Страница 4: ...rough 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 i...

Страница 5: ...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 s...

Страница 6: ...6 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 ...

Страница 7: ...ton 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 depen...

Страница 8: ...here 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 wher...

Страница 9: ...gh 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 ...

Страница 10: ... 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 ...

Страница 11: ...es 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 Fra...

Страница 12: ...it will not operate properly 4 Place the Active Carbon Filter within the Filter Frame on top of the HEPA Filter The Active Carbon Filter does not have a front and a back 5 Next place the Pre Filter within the Filter Frame Fit the 4 tabs of the Pre Filter into the holes in the Filter Frame FILTER INSTALLATION Tabs Pre Filter Active Carbon Filter HEPA Filter Filter Frame HEPA Filter Filter Frame Pre...

Страница 13: ...art date on the Date Label Use the date as a guide for the Filter Replacement schedule 8 Mount the Front Panel to the main unit 9 Insert the power plug into the wall outlet and check on off operation using the remote control Date Label Claw socket Claw Filter Frame Front Panel ...

Страница 14: ...will operate at its highest setting This feature is useful when you want to remove airborne dirt and contaminants from room air quickly OFF TIMER OPERATION The air purifier will turn itself off after the set amount of time elapses 1 or 4 hours PLASMACLUSTER ION OPERATION While the product is in operation the unit will constantly dischange approximately the same amount of Positive and Negative ions...

Страница 15: ...damage to the land of the PWB extreme care should be taken not to leave the bit in contact with the PWB for an extended period of time Remove the bit as soon as a good flow is achieved The high content of tin in lead free solder will cause premature corrosion of the bit To reduce wear on the bit reduce the temperature or turn off the iron when it is not required Leaving different types of solder o...

Страница 16: ...16 FU 28H S 3 PRINTED WIRING BOARD ...

Страница 17: ...d as the power supply for the microcomputer LSI 1 plasmacluster unit drive circuit odour sensor circuit and LED drive circuit VDD approx DC5V 3 Power supply clock generation circuit The voltage between the input terminal to DB1 and its output terminal GND is divided by the resistor R21 R22 and R23 and input into the digital transistor Q21 Then it is converted into the DC square wave signal that ha...

Страница 18: ...ce value _ the reference value is changed to the current value immediately If the current level is dirtier than the reference value and the contamination level changes such as suddenly increased odour of cigarette smoke _ the reference value remains the same _ the value in the clean condition is adopted as a new reference value If the current level is dirtier than the reference value and the conta...

Страница 19: ...D No Operation Operation mode OFF timer Cluster Buzzer Point to be check Fan Cluster Odour Auto Max Silent 4 hours 1 hour ion Silent Max Drive Sensor Green Green Green Green Green Blue PORT No 25 39 41 2 3 4 5 6 1 LED No 1 Turn the power on while holding down Model select memory ON OFF check the OFF TIMER button on the main unit 2 Press the POWER ON OFF button EEPROM version No upper side check on...

Страница 20: ...ads turn off The buzzer does not sound f Remedy Please replace the PWB 3 Fan motor rotation speed error a Outline This error mode is activated when the unit detects that the fan motor is locked or the connector is opened b Detection time In all modes during operation c Detection conditions When the unit detects 0 rpm as the rotation speed of the fan motor for 15 consecutive seconds d Abnormality d...

Страница 21: ...21 FU 28H S 6 CONTROL CIRCUITDIAGRAM ...

Страница 22: ...e clogged There is an obstruction near the air inlet or outlet Undesirable odors that have accumulated in the antibacterial HEPA filter are being released The air purifier is being used near a light that uses an inverter or lighting is old and is flickering The air purifier is being in a location where it is exposed to direct sunlight Faulty remote control Faulty PWB There are no batteries in the ...

Страница 23: ...sound is audible coming from the purifier sometimes it is not This sound is produced when plasmacluster ions are being generated While this sound may grow louder or softer and may even become almost inaudible depending on the humidity of the room where the air purifier is being used the plasmacluster ion effectiveness remains the same ...

Страница 24: ...eptible to static electricity and require extra care Do not place PWB K on Styrofoam or mirror mats that are prone to collect static electricity WARNING Unplug the air purifier before attempting to repair or disassemble the unit there is a danger of electrical shock 1 HOW TO REMOVE THE FRONT PANEL AND FILTER 1 Place the air purifier face up hold the bottom of the Front Panel by two locations and t...

Страница 25: ...ding head screws and two hooks of the Operation PWB from the Operation Switch Box and then separate the Operation PWB and Operation Button Operation PWB Operation PWB Operation Operation Switch witch Box ox symbol 3 x 8 mm screws symbol 3 x 8 mm screws Operation PWB Operation Switch Box symbol 3 x 8 mm screws Operation Operation Button utton Operation Button 3 Remove the 2 screws 3 x 12 mm binding...

Страница 26: ...ischarge Discharge Vent ent Discharge Vent 3 Remove the Discharge Guard from the Discharge Vent Discharge Discharge Vent ent Discharge Discharge Guard uard Discharge Vent Discharge Guard ASSEMBLY PRECAUTIONS Assemble so that the edge of the Discharge Guard faces upward as shown in the illustration above 6 HOW TO REMOVE THE PLASMACLUSTER UNIT 1 Disconnect the Cluster harness Remove the screw 4 x 10...

Страница 27: ... Bottom hooks Push Control PWB Box Bottom 5 Remove the Control PWB Control PWB Box Top Control PWB Box Top Control Control PWB PWB Box Bottom Box Bottom Control PWB Control PWB Control PWB Box Top Control PWB Box Bottom Control PWB 8 HOW TO REMOVE THE POWER SUPPLY PWB 1 Remove the 2 screws 4 x 12 mm truss head screws holding the Power Supply Box component Power supply Power supply PWB Box Top PWB ...

Страница 28: ...ion Motor Motor Back Rubber Cushion Front Rubber Cushion Motor ASSEMBLY PRECAUTIONS When installing the Motor set the Motor so that the circled flange holes line up with the positions on the Back Panel shown by the arrows Make sure the Motor Angle and Motor do not make contact Install so that the gaps Install so that the gaps are about the same are about the same Arrow mark Arrow mark Install so t...

Страница 29: ...omatically Manual Operation Regardless of the amount of impurities desired fan speed can be switched between Silent and Max POWER ON OFF button Used to start AUTO operation short beep and stop operation long beep Plasmacluster Indicator Light and Fan Speed Indicator Light AUTO turn on off Unless unplug the power cord the operation starts in the previous mode the unit was operated in AUTO Fan Speed...

Страница 30: ... cleaning 3 CLEANING THE FAN AND INSIDE THE AIR PURIFIER Remove the 6 screws 4 x 10 mm truss head screws holding the intake guard and cluster maintenance cover CLEANING THE FAN Refer to P 24 of the Service Manual 4 How to remove the fan and remove the fan Wash the fan with water Use a towel to dry the washed fan or set it in a shady area with good ventilation to let it dry CLEANING INSIDE THE AIR ...

Страница 31: ...llowing order place the sitting washer fan spring washer and nut on the motor shaft b Tighten the nut until the spring washer flattens out CAUTION Do not press down on the outer edge of the fan while tightening the nut 3 Install the intake guard with 4 screws 4 Place the filters into the filter frame and install the filter frame into the main unit Refer to P 26 5 Place the front panel 7 INSERT THE...

Страница 32: ...n below flash Lights Indication 4H 1H 4H 1H 4H 1H 4H 1H 4H 1H 4H 1H Operation cumulative time The values shown in parentheses are guidelines for when operation is conducted 24 hours per day 0 hr to 1 440 hr 0 month to under 2 months 2 month to under 4 months 4 month to under 6 months 6 month to under 8 months 8 month to under 10 months 10 months or more Up to 2 880 hr Up to 4 320 hr Up to 5 760 hr...

Страница 33: ... PC ABS 2 10 NFANSA004KKFZ FAN Acrylonitrile Butadiene Styrene V0 ABS 2 11 PBOX A012KKFZ CLUSTER BOX Polystyrene V0 HI PS 2 12 PCOV A067KKFZ POWER PWB BOX TOP Polycarbonate Acrylonitrile Butadiene Styrene V0 PC ABS 2 13 PCOV A068KKFZ POWER PWB BOX BOTTOM Polycarbonate Acrylonitrile Butadiene Styrene V0 PC ABS 2 14 PCOV A069KKFZ INSPECTION COVER Polystyrene V0 HI PS 2 15 PCOV A070KKFZ LSI PWB BOX T...

Страница 34: ...L 2 20 HPNL A062KKTA Front panel base 1 BB 2 21 HPNL A107KKRA Ornament panel L 1 AZ 2 22 HPNL A063KKLA Ornament panel S 1 AQ 2 23 HBDG A002KKEA Al badge 1 AE 2 24 MROD A002KKWZ Front panel angle 1 AF 2 25 PFIL A074KKEZ Collect dust filter 1 AZ 2 26 PFIL A075KKEZ Deodorant filter 1 AY 2 27 PFIL A076KKEZ Pre filter 1 AS 2 28 PCUS A041KKEZ Filter cushion L 2 AC 2 29 PCUS A042KKEZ Filter cushion S 2 A...

Страница 35: ...EWS 4 1 PPLT A016KKWZ Fan washer 1 AC 4 2 XNFS760 50000 Nut 1 4 3 XWSS760 10000 Spring washer 1 A XZBS730P08000 Tapping screw 4 B XZBSD30P10000 Screw special 2 AA C XZBS730P12000 Special tap screw 8 D XZBS740P08000 Tapping screw 3 E XBTS740P10000 Tapping screw 6 F XZTS740P10000 Special tap screw 3 G XZTS740P12000 Special tap screw 4 H XZBS740P12000 Tapping screw 10 I XZBS740P14000 Tapping screw 4 ...

Страница 36: ... 3 3 5 3 2 3 1 4 1 4 2 4 3 2 2 2 3 2 6 2 8 2 4 2 5 1 2 2 9 2 10 2 11 2 41 2 12 2 14 2 13 2 19 2 20 2 28 2 38 2 40 2 37 2 37 2 29 2 30 2 31 2 32 2 34 2 35 2 33 2 33 2 36 2 36 2 25 2 26 2 27 2 21 2 22 2 23 2 17 2 18 2 15 2 16 1 4 1 5 1 5 1 5 1 5 1 3 2 7 Attached parts A C C H H J C G D D H E E E G C B F F I I K H ...

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