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AH-S327W2
AU-S327W2

SHARP CORPORATION

SPLIT TYPE

ROOM AIR CONDITIONERS

SERVICE MANUAL

Page

SPECIFICATIONS ................................................................................................................................................. 2
EXTERNAL DIMENSIONS ..................................................................................................................................... 3
WIRING DIAGRAMS .............................................................................................................................................  4
ELECTRICAL PARTS ............................................................................................................................................ 6
BLOCK DIAGRAM ..................................................................................................................................................7
MICROCOMPUTER CONTROL SYSTEM ............................................................................................................  9
FUNCTIONS ........................................................................................................................................................  13
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ...................................................................  17
BREAKDOWN DIAGNOSIS PROCEDURE ........................................................................................................  19
REFRIGERATION CYCLE .................................................................................................................................  21
PERFORMANCE CURVES ................................................................................................................................  22
DISASSEMBLING PROCEDURE .......................................................................................................................  23
REPLACEMENT PARTS LIST ............................................................................................................................. 33

TABLE OF CONTENTS

MODELS

S5712AHS327W2

INDOOR UNIT

AH-S327W2

AU-S327W2

OUTDOOR UNIT

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.

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Содержание AH-S327W2

Страница 1: ...PERATION OF PROTECTIVE PROCEDURES 17 BREAKDOWN DIAGNOSIS PROCEDURE 19 REFRIGERATION CYCLE 21 PERFORMANCE CURVES 22 DISASSEMBLING PROCEDURE 23 REPLACEMENT PARTS LIST 33 TABLE OF CONTENTS MODELS S5712AHS327W2 INDOOR UNIT AH S327W2 AU S327W2 OUTDOOR UNIT 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...

Страница 2: ...nd Grooved tube type Control Capillary tube Refrigerant volume 690g Noise level High dB A 41 49 at cooling Med dB A 37 Low dB A 33 Fan system Drive Direct drive Air flow High m3 min 9 8 28 3 quantity Med m3 min 8 5 at cooling Low m3 min 7 0 Fan Close flow fan Propeller fan Connections Refrigerant coupling Flare type Refrigerant tube size Gas Liquid 1 2 1 4 Refrigerant pipe sets No AZ 24H5E 5m 16 4...

Страница 3: ...AH S327W2 AU S327W2 EXTERNAL DIMENSIONS Figure E 1 INDOOR UNIT Figure E 2 OUTDOOR UNIT 250 280 304 525 10 5 38 58 5 76 5 141 5 515 530 15 728 98 60 59 5 69 5 790 188 270 1800 58 18 19 5 182 Length unit mm ...

Страница 4: ...4 AH S327W2 AU S327W2 WIRING DIAGRAMS Figure W 1 Wiring Diagram for AH S327W2 ...

Страница 5: ...5 AH S327W2 AU S327W2 Figure W 2 Wiring Diagram for AU S327W2 ...

Страница 6: ...AH Indoor fan motor capacitor 430V 1 5µF AH Transformer Primary AC 230V 50Hz AH Secondary AC14 6V 50Hz Fuse 250V 2 5A AH Compressor KHV127FEM 3 PHASE Induction motor AU Outdoor fan motor ML A584 220 240V 50 60Hz AU Outdoor fan motor capacitor 430V 2 0µF AU WPE1 QFS GA014JBE0 20A 250V AU WPE2 QFS GA019JBE0 20A 250V AU WPE3 QFS GA008JBE0 3A 250V AU ...

Страница 7: ... I O circuit Compressor relay drive circuit LED drive circuit Auto restart circuit Test run circuit Power on circuit Flow direction control louver motor Wireless remote control operation Audible operation confirmation Room fan motor Fan motor pulse detect Room temp thermistor Heat exchanger pipe thermistor Blower temperature fan speed model select Outdoor ratings Wireless preheat Indoor outdoor co...

Страница 8: ...ve circuit Outdoor fan relay drive circuit Power supply circuit built into IPM CPU oscillator circuit AC overcurrent detection circuit DC overcurrent detection circuit LED Heat exchanger pipe thermistor Compressor thermistor Current transformer Compressor Power transistor module Outdoor fan Smoothing circuit Filter circuit Unit unit wiring AC power and serial signals 20 A protection 20 A protectio...

Страница 9: ... 25v 1000µ 44 5v 5v R7 20k R6 3 3k 3 1 2 Q1 C7 50v 1000P 45 14 15 9 7 5 4 3 2 1 13 12 11 JP5 JP6 JP7 JP9 JP10 SIGNAL IN SIGNAL OUT MODEL 5 MODEL 6 MODEL 7 WIRELESS PREHEAT 1 2 3 OSC 8MHz 6 5v 5v 1 2 3 Q2 C16 16v 0 01µ C15 16v 0 01µ 16 D5 R22 1 2k R21 3 3k R18 2 7k R20 33k R19 4 7k IC1 TRANSFORMER 46 D1 D2 D3 D4 47 TR C21 250VAC 0 01µ C1 430VAC 1 5µ NR1 55 50 48 49 67 66 68 56 54 NF1 FU1 2 5A 250v ...

Страница 10: ...C NC NC NC NC NC NC NC 0 1µ 25v R38 10k 5v 5v IC3 2 3 1 PST993D 5v OSC1 1µ 50v C23 R10 6 49kF C15 10v 220µ 5v D3 D2 1 00kF R9 JP1 1 80kF R8 BCN12 DTD113ZS Q3 JP4 KRC106M Q1 D5 RY1 D6 13v T5 T6 BK DB1 OR BCN13 BL PTC1 GR MRY1 BL PTC Thermistor BR CMP 1 2W 270k 1 2W 270k R40 C29 0 33µ 630v R39 T9 T10 T8 WPE2 20A 250v T7 FC1 YL BL PM1 IPM U RE WH BK V W Compressor 50v 1000p TH2 Thermistor for Condens...

Страница 11: ...ACITOR JP12 R27 R25 3 4 2 2 4 3 R6 R21 D7 R44 R24 R4 R5 CN4 TH1 R43 R42 R41 R40 1 SW1 C9 R29 IC80 8 CN1 CN2 1 1 3 R1 CN3 LOUVER M 5 JP1 JP2 JP3 JP7 JP9 JP10 JP8 C80 JP4 DSGY A840 JBK0 3 R9 R28 JP99 R12 3 CN8 R18 4 1 3 Q1 R7 R19 C12 C6 R3 C11 R15 R14 C15 C16 R81 5 MEMORY JP5 JP6 D5 R11 32 33 20 POWER ON R10 IC2 8 C17 JP19 JP18 JP17 52 51 1 IC1 16 1 19 C10 R31 64 R39 R37 R35 R33 R38 C14 R36 R34 R30 ...

Страница 12: ...11 R8 R9 WPE3 CT1 D2 3A 250V T5 C1 MRY1 BLACK R3 R7 R17 R16 R24 R23 R22 R34 JP9 JP14 Q1 RY1 C24 R40 JP34 E C B D3 D6 BCN12 Q3 E C B LED1 JP8 JP4 C13 R4 D1 C12 NR1 T4 T3 SAI 20A 250V JP21 T1 WPE1 JP22 L3 C4 C3 T6 JP26 T2 JP25 C14 CN9 60 55 50 45 40 35 33 64 5 10 R29 R31 R33 OUT IN R32 R18 C2 IC1 R30 R28 15 20 32 IC3 R37 R35 CN8 4 JP11 C28 OSC1 1 3 1 DSGY A844JBK0 US27W2 BLUE BROWN G Y RED BLUE F DI...

Страница 13: ... 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 OFF Fan speed Frequency cord Fan speed High Med Low High Med Low OFF 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 OFF Fan speed Frequency cord Fan speed Automatic COOLING 1 Cooling If the room temperature is in the c zone when operation begins proportional integral control is not performed and the machine runs at frequency code 9 power until the h zone is re...

Страница 14: ... Same as above Final setting 1 C 1 C Stops Timer set time 1 hour Timer operation starts Room temperature During Cooling Dry 1 6 Swing louvre The louvre is moved by a stepping motor to perform swing and fixing in the set position If the FLOW DIRECTION button is prossed during swing it will stop If the FLOW DIRECTION button is prossed while it is stopped it will swing 1 7 Restart control Once the co...

Страница 15: ...ds It will not go ON again before 80 seconds elapses ON OFF OFF Air conditioner operation Compressor relay 100 sec ON 3 If air conditioner operation is turned on again during the 100 seconds delay before the compressor relay goes off the compressor relay will stay on ON OFF ON ON Air conditioner operation Compressor relay 100 sec ON ON OFF ON OFF Air conditioner operation Compressor relay 100 sec ...

Страница 16: ...ation is stopped In this case the compressor outdoor fan does not stop and 170 seconds after operation is stopped another try will be made Three retries are allowed On the fourth retry a complete stop request signal is sent to the indoor unit and the outdoor unit will remain stopped until reset is performed At this time the 3 minute delay for control of the outdoor unit will not function therefore...

Страница 17: ...sistor module Also stops the compressor if the temperature of the power transistor module is exceeds 105 C Lowers the operating frequency if the compressor AC current exceeds Peak control level 10 4A cooling Stops the compressor if the current exceeds peak control level at 40 Hz or less Stops the compressor if the compressor AC current exceeds 15 A tops the compressor if the compressor AC current ...

Страница 18: ...oor thermistor breaks Stops the compressor if the operating frequency is above 70 Hz and the compressor current is below 1 0 A Turns the compressor relay off if the indoor unit does not receive a serial signal from the outdoor unit for 8 minutes Stops the compressor if the outdoor unit does not receive a serial signal from the indoor unit for 30 seconds Stops the compressor if the outdoor thermo f...

Страница 19: ...19 AH S327W2 AU S327W2 ...

Страница 20: ...20 AH S327W2 AU S327W2 ...

Страница 21: ...r AH S327W2 Indoor side Standard conditions Dry bulb Temp C Relative Humidity 27 Cooling 50 Outdoor side Dry bulb Temp C Relative Humidity 35 40 AH S327W2 Temperature at each part and pressure in 3 way valve Operation mode Cool Max Cool 1 2 3 4 3 way valve pressure kg cm2 G 107 C 48 C 12 C 8 C 4 3 72 C 45 C 15 C 11 C 5 9 111 60 settle AH S327W2 No Hz Capillary tube O D I D L ø3 2 ø1 8 900 AH S327W...

Страница 22: ...W2 25 30 35 40 2 6 2 8 3 0 3 2 3 4 10 12 14 1200 1400 1600 1800 Cooling capacity kW Outside air temp C Input W Outlet air temp C 1 Indoor fan speed Hi 2 Vertical adjustment louver 45 Horizontal adjustment louver front 3 Indoor air temp Colling 27 C NOTE Running frequency 99HZ ...

Страница 23: ...op of the screw cover with the flat tipped screwdriver or nail etc b Insert the flat tipped screwdriver or nail etc into the lower clearance and pull and lift it toward you for removal 2 Remove two screws from the front panel 5 Remove the fastening screw which retains the cable and remove the cord Note During reassembly install the holder after installing the front panel This will make it easier t...

Страница 24: ...parallel to the cabinet When pressing it in take care to prevent the top of the blow out portofthedrainpanfrombeingcaughtbythefrontpanel 7 Remove the unit to unit wiring from the terminal board Push the lock to release the wire and pull it out 8 Remove one fastening screw from the control box cover 10 Remove the ground wire One screw Note During reassembly take care for the direction of the lead w...

Страница 25: ...f the lead wire 14 Remove two connectors of the fan motor and one of louver motor 15 Remove the indicator assembly Push up the lower hook and the indicator will be ready for removal 16 Remove four fastening screws of the control box and remove the control box 17 Remove the fastening screws of the drain pan One screw on the left side ...

Страница 26: ...m together If it is tried to remove the fan alone it will damagetheinnersurfaceofthemetaltopreventremoving the fan During installation turn the drain hose to the state of the engagement position After reinstallation verify that it is securely fastened 19 Pull down the drain pan toward you for removal 20 Remove two fastening screws of the side cover L Drain hose Drain pan Groove Projection To disco...

Страница 27: ...fan boss How to remove the electric control box 1 Remove the fastening screw of the terminal board Motor shaft Fan Fan boss 23 To remove the evaporator remove the tube holder on the rear side of the cabinet pull the side cover L of left side with the side cover R of right side toward yourself and lift it up and remove it from cabinet pulling it toward you 2 Remove the receiver unit Press and sprea...

Страница 28: ...er Slightly fall down the hinge area deflect the louver and remove it at one place Remove the shaft from each of the left and right sides Drain pan and related How to remove the louver motor Remove two screws which fasten the louver motor How to remove the side clamp assembly Left the edge of the drain pan to the arrow marked direction and ditach the side clamp assembly Hinge area ...

Страница 29: ...two screws which are fixing right side of the front panel And disconnect the wiring from the terminal board 6 Take off the three hooks of back side of the front panel And pull it toward you 1 Remove one screw which is fixing the control box cover 4 Remove two screws which are fixing left side of the front panel 5 Remove one screw which is fixing front part of the front panel BLACK COLOR ...

Страница 30: ... of the rear cabinet 8 Remove one screw which is fixing left side of the rear cabinet 10 Remove two screws which are fixing the control box 11 Disconnect following connectors 9 Remove four screws which are fixing back side of the rear cabinet And take out the rear cabinet ...

Страница 31: ... capacitor three wires 15 Remove two screws which are fixing heat insulator assembly And take it out 16 Remove two screws which are fixing bulkhead And take it out Fixing the bottom part is used special screw 14 Take out the control box and put it just under The compressor cord is still wired 17 Disconnect the compressor cord Three wires ...

Страница 32: ...32 AH S327W2 AU S327W2 18 Take out the compressor cover 19 Take out the thermistor from the tube Fan motor angle 20 Remove two screws which are fixing the fan motor And take it out ...

Страница 33: ... B724JBK0 Front panel assembly 1 AW 1 28 CPNL A231JBK0 Open panel assembly 1 AN 1 29 HBDG A070JBEA Badge 1 AE 1 30 CDEC A036JBE0 Display cover assembly 1 AL 1 31 FCOV A031JBFA Recieving filter 1 AE 1 32 DFIL A091JBK0 Air filter assembly 2 AN 1 33 LHLD A302JBFA Tube holder 1 AD 1 34 LHLD A303JBFA Tube holder 1 AD 1 35 PGUMMA082JBE0 Motor cushion 1 AD 1 36 GWAK A226JBFB Front panel 1 AV 1 37 PCOV A3...

Страница 34: ...BE0 Anti vibration rubber 4 AE 4 7 PPLTNA041JBP0 Mounting plate 1 AP 4 8 XTTSD45P30000 Long screw 6 AA 4 9 TINS A471JBR0 Installation manual 1 AF 4 10 TINSCA014JBR0 Operation manual 1 AH 4 11 LHLD A116JBF0 Controller holder 1 AF SCREWS 5 1 LX BZA075JBE0 Special screw 1 AA HOW TO ORDER REPLACEMENT PARTS To have your order filled prompty and correctly please furnish the following information 1 MODEL...

Страница 35: ...1 34 4 7 1 4 3 7 3 9 1 41 1 3 1 37 1 2 1 5 1 35 4 2 1 32 3 8 2 5 2 6 2 3 2 9 2 7 2 10 1 38 1 39 1 31 1 32 4 2 1 11 1 9 1 12 1 8 1 26 1 10 1 23 1 21 1 15 1 13 1 14 1 20 1 22 1 7 1 28 1 30 1 29 1 36 2 2 3 10 5 1 3 3 3 2 3 1 3 6 4 8 4 9 4 10 1 20 2 1 2 8 1 1 1 42 1 17 1 16 1 18 1 19 1 25 1 19 1 6 1 24 4 11 4 1 ...

Страница 36: ...over 1 AL 1 33 PSEN A004JBK0 Flare nut ass y 1 AE 1 34 PSEN A020JBK0 Flare nut ass y 1 AL 1 35 RTHM A279JBE0 Thermister ass y 1 AQ 1 36 PSEL B285JBE0 Protect sheet 1 AF 1 37 TLABKC033JBR0 Number card 1 AC 1 38 TSPC C392JBR0 Name badge 1 AG 1 39 PSEL A973JBE0 Cabinet cushion 1 AB 1 40 PSHE A161JBE0 Protect sheet 1 AE CONTROL BOX PARTS 2 1 DSGY A844JBK0 Control board unit 1 BL 2 2 LHLD A355JBF0 Term...

Страница 37: ...ecial nut 3 AC 4 3 LX BZA075JBE0 Special screw 1 AA 4 4 LX BZA175JBE0 Special screw 1 AC 4 5 LX NZA135JBE0 Special nut 1 AC 4 6 XTSSF40P12000 Tapping screw 1 AA REF NO PART NO DESCRIPTION Q TY CODE HOW TO ORDER REPLACEMENT PARTS To have your order filled prompty and correctly please furnish the following information 1 MODEL NUMBER 2 REF NO 3 PART NO 4 DESCRIPTION ...

Страница 38: ... 2 1 28 1 6 1 7 3 7 3 9 3 8 3 13 3 5 1 35 1 29 1 39 1 32 1 23 1 22 1 21 1 38 3 3 3 4 2 13 1 24 1 36 3 6 3 17 3 16 1 34 1 33 1 15 3 12 4 1 1 25 3 14 3 11 1 13 1 16 1 19 1 17 1 9 3 1 3 15 2 9 2 6 2 4 2 10 2 3 2 14 2 2 2 7 2 5 2 1 2 12 1 30 4 5 2 11 1 1 1 11 2 8 1 40 1 18 3 2 1 31 1 8 1 2 1 4 1 5 1 3 97 SHARP CORP 5U0 11E Printed in Japan ...

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