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Hitachi RAC-70YH7 Service Manual
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Hitachi RAC-70YH7 Service Manual

Hitachi RAC-70YH7 Service Manual

Technical information
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SERVICE MANUAL

TECHNICAL INFORMATION

FOR SERVICE PERSONNEL ONLY
SPECIFICATIONS
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
COOLING
CAPACITY
TOTAL INPUT
TOTAL AMPERES
HEATING
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

ROOM AIR CONDITIONER

JANUARY 2010
HITACHI
RAS-70YH7
RAC-70YH7
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
INDOOR UNIT + OUTDOOR UNIT
Refrigeration & Air-Conditioning Division
PM
RAS-70YH7/RAC-70YH7
REFER TO THE FOUNDATION MANUAL
CAUTION ----------------------------------------------------------------- 4
SPECIFICATIONS ----------------------------------------------------- 5
INSTALLATION --------------------------------------------------------- 6
HOW TO USE ---------------------------------------------------------- 7
MAIN PARTS COMPONENT ------------------------------------- 31
WIRING DIAGRAM -------------------------------------------------- 33
CIRCUIT DIAGRAM ------------------------------------------------- 35
BLOCK DIAGRAM --------------------------------------------------- 44
BASIC MODE --------------------------------------------------------- 45
REFRIGERATING CYCLE DIAGRAM ------------------------- 59
TROUBLE SHOOTING --------------------------------------------- 78
PARTS LIST AND DIAGRAM ------------------------------------ 98
(WALL TYPE)
INDOOR UNIT
RAS-70YH7
1 Ø, 50/60 Hz, 220-240V
2,170 (200 - 2,820)
9.95
7.00 (1.50 - 8.00)
23,900 (5,120 - 27,315)
2,200 (200 - 2,970)
10.10
8.00 (1.50 - 9.20)
27,300 (5.119 - 31,396)
1150
333
245
15
NO. 0465E
CONTENTS
RAC-70YH7
850
800
298
55
After installation

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Summary of Contents for Hitachi RAC-70YH7

  • Page 1: Table Of Contents

    NO. 0465E RAS-70YH7/RAC-70YH7 SERVICE MANUAL REFER TO THE FOUNDATION MANUAL TECHNICAL INFORMATION FOR SERVICE PERSONNEL ONLY CONTENTS CAUTION ----------------------------------------------------------------- 4 SPECIFICATIONS ----------------------------------------------------- 5 INSTALLATION --------------------------------------------------------- 6 HITACHI HOW TO USE ---------------------------------------------------------- 7 CONSTRUCTION AND DIMENSIONAL DIAGRAM ------- 29 MAIN PARTS COMPONENT ------------------------------------- 31...
  • Page 2 SAFETY DURING REPAIR WORK 1. In order to disassemble and repair the unit in question, be sure to disconnect the power cord plug from the power outlet before starting the work. 2. If it is necessary to replace any parts, they should be replaced with respective genuine parts for the unit, and the replacement must be effected in correct manner according to the instructions in the Service Manual of the unit.
  • Page 3 WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS 1. Scope The standards provide for items to be generally observed in carrying and handling semiconductors in relative manufacturers during maintenance and handling thereof. (They apply the same to handling of abnormal goods such as rejected goods being returned).
  • Page 4 (6) Use a three wire type soldering iron including a grounding wire. Metal plate (of aluminium, stainless steel, etc.) Working table Resistor of 1 M (1/2W) Staple Earth wire Bare copper wire (for body earth) Fig. 3. Grounding of the working table Soldering iron Grounding wire...

  • Page 5: Caution

    CAUTION In quiet or stop operation, slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally, but this noise is not abnormal for the operation. When it thunders near by, it is recommended to stop the operation and to disconnect the power cord plug from the power outlet for safety.

  • Page 6: Specifications

    SPECIFICATIONS MODEL RAC-70YH7 RAS-70YH7 FAN MOTOR 47 W 30 W FAN MOTOR CAPACITOR FAN MOTOR PROTECTOR – COMPRESSOR JU1015D9 COMPRESSOR MOTOR CAPACITOR OVERLOAD PROTECTOR OVERHEAT PROTECTOR 3.15A FUSE (MICRO COMPUTER CIRCUIT) POWER RELAY POWER SWITCH TEMPORARY SWITCH TEST/SERVICE SWITCH TRANSFORMER...
  • Page 7 Figure showing the installation of Indoor and Outdoor unit above 50mm Be sure to above 100mm above completely 200 mm seal any gap with putty. above 2300 mm The indoor piping should be insulated with the enclosed insulation pipe. (If the insulator is insufficient, please use commersial products).

  • Page 8: Names And Functions Of Each Part

    1 year depending on application requirements. OUTDOOR UNIT DRAIN PIPE Condensed water drain to outside. CONNECTING CORD AIR INLET (BACK, LEFT SIDE) AIR OUTLET MODEL NAME AND DIMENSIONS MODEL WIDTH (mm) HEIGHT (mm) DEPTH (mm) RAS-70YH7 1150 RAC-70YH7 – 7 –...
  • Page 9 INDOOR UNIT INDICATORS TIMER LAMP This lamp lights when the timer is working. OPERATION LAMP This lamp lights during operation. The OPERATION LAMP flashes in the following cases during heating. (1) During preheating For about 2–3 minutes after starting up. (2) During defrosting Defrosting will be performed about once an hour when frost forms on the heat exchanger of the...
  • Page 10 Note Avoid to use the room air conditioner for cooling operation when the outside temperature is below –10°C (14°F). The recommended maximum and minimum operating temperatures of the hot and cold sides should be as below: Cooling Heating Minimum Maximum Minimum Maximum Dry bulb °C...

  • Page 11: Safety Precaution

    SAFETY PRECAUTION Please read the “Safety Precaution” carefully before operating the unit to ensure correct usage of the unit. Pay special attention to signs of “ Warning” and “ Caution”. The “Warning” section contains matters which, if not observed strictly, may cause death or serious injury. The “Caution” section contains matters which may result in serious consequences if not observed properly.
  • Page 12 PRECAUTIONS DURING OPERATION The product shall be operated under the manufacturer specification and not for any other intended use. Do not attempt to operate the unit with wet hands, this could cause fatal accident. When operating the unit with burning equipments, regularly ventilate the room to avoid oxygen insufficiency.
  • Page 13 NAMES AND FUNCTIONS OF REMOTE CONTROL UNIT REMOTE CONTROLLER This controls the operation of the indoor unit. The range of control is about 7 meters. If indoor lighting is controlled electronically, the range of control may be shorter. This unit can be fixed on a wall using the fixture provided. Before fixing it, make sure the indoor unit can be controlled from the remote controller.

  • Page 14: Automatic Operation

    VARIOUS FUNCTIONS I Auto Restart Control If there is a power failure, operation will be automatically restarted when the power is resumed with previous operation mode and airflow direction. (As the operation is not stopped by remote controller.) If you intend not to continue the operation when the power is resumed, switch off the power supply. When you switch on the circuit breaker, the operation will be automatically restarted with previous operation mode and airflow direction.

  • Page 15: Heating Operation

    HEATING OPERATION Use the device for heating when the outdoor temperature is under 21°C. When it is too warm (over 21°C), the heating function may not work in order to protect the device. In order to keep reliability of the device, please use this device above -15°C of the outdoor temperature. Press the FUNCTION selector so that the display indicates (HEAT).

  • Page 16: Dehumidifying Operation

    DEHUMIDIFYING OPERATION Use the device for dehumidifying when the room temperature is over 16°C. When it is under 15°C, the dehumidifying function will not work. Press the FUNCTION selector so that the display indicates (DEHUMIDIFY). The FAN SPEED is set at LOW or SILENT. Set the desired room temperature with the TEMPERATURE button (the display indicates the setting).

  • Page 17: Cooling Operation

    COOLING OPERATION Use the device for cooling when the outdoor temperature is –10°C~ 43°C. If in doors humidity is very high (80%), some dew may form on the air outlet grille of the indoor unit. Press the FUNCTION selector so that the display indicates (COOL).

  • Page 18: Fan Operation

    FAN OPERATION You can use the device simply as an air circulator. Use this function to dry the interior of the indoor unit at the end of summer. Press the FUNCTION selector so that the display indicates (FAN). Press the (FAN SPEED) button.

  • Page 19: To Set The Timer

    HOW TO SET THE TIMER Time Set the (TIME) button. After you change the batteries; TIME OFF TIMER ON TIMER OFF-Timer RESERVE Press the (OFF-TIMER) button. The (OFF) mark blinks on the display. CANCEL Start STOP You can set the device to turn off at the preset time.
  • Page 20 Set the current time with the Press the (TIME) button again. Press the TIMER control button. The time indication starts lighting (TIME) button. instead of flashing. The time indication will disappear automatically in 10 second. To check the current time setting, press the (TIME) button twice.
  • Page 21 HOW TO SET THE SLEEP TIMER Set the current time at first if it is not set before (see the pages for setting the current time). Press (SLEEP) button, and the display changes as shown below. Mode Indication 1 hour 2 hours 3 hours 7 hours...

  • Page 22: Circuit Breaker

    HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER Remove the cover as shown in the figure and take out the Push and pull to the old batteries. direction of arrow Install the new batteries. The direction of the batteries should match the marks in the case.

  • Page 23: Suitable Room Temperature

    THE IDEAL WAYS OF OPERATION Suitable Room Temperature Install curtain or blinds Warning It is possible to Freezing temperature reduce heat is bad for health and a entering the waste of electric power. room through windows. Ventilation Effective Usage Of Timer At night, please use the “OFF or ON timer Caution operation mode”, together with your wake up...
  • Page 24 FOR USER’S INFORMATION The Air Conditioner And The Heat Source In The Room Caution If the amount of heat in the room is above the cooling capability of the air conditioner (for example: more people entering the room, using heating equipments and etc.), the preset room temperature cannot be achieved.
  • Page 25 ATTACHING THE AIR CLEANSING FILTERS CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. Open the front panel. Pull up the front panel by holding it at both sides with both hands.
  • Page 26 MAINTENANCE CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. AIR FILTER Clean the air filter, as it removes dust inside the room. In case the air filter is full of dust, the air flow will decrease and the cooling capacity will be reduced.
  • Page 27 Washable Front Panel Remove the front panel and wash with clean water. Wash it with a soft sponge. After using neutral detergent, wash thoroughly with clean water. When front panel is not removed, wipe it with a soft dry cloth. Wipe the remote controller thoroughly with a soft dry cloth.
  • Page 28 CAUTION Cleaning and maintenance must be carried out only by qualified service personal. Before cleaning, stop operation and switch off the power supply. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD Running the unit setting the operation mode to (FAN) and the fan speed to HI for about half a day on a fine day, and dry the whole of the unit.
  • Page 29 AFTER SALE SERVICE AND WARRANTY WHEN ASKING FOR SERVICE, CHECK THE FOLLOWING POINTS. CONDITION CHECK THE FOLLOWING POINTS If the remote controller is Do the batteries need replacement? not transmitting a signal. Is the polarity of the inserted batteries correct? Remote controller display is dim or blank.) Is the fuse all right?

  • Page 30: Construction And Dimensional Diagram

    CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAS-70YH7 Unit : mm 17.5 Wireless remote controller Suction grill Front panel About When piping is drawn horizontally, exchange Viewed from back the drain hose for the (bottom direction pipe drain cap. lead-out) Note: 1. Service space (free space needed for servicing) is 200mm on the right, 100mm on the left and 50mm on top. 2.
  • Page 31 MODEL RAC-70YH7 Handle Handle Air outlet Air suction grille Holes for anchor bolt (2-ø12) More than More than Fixing hole Service space Notch for anchor bolt (2-ø12 Notchs) – 30 –...

  • Page 32: Main Parts Component

    DC: 100 ~ 322V OUTPUT 100 ~ 322V CONNECTION 0 ~ 6.5V (Control circuit built in) OUTDOOR FAN MOTOR Fan Motor Specifications MODEL RAC-70YH7 ITEM POWER SOURCE DC: 120 ~ 380V OUTPUT (W) MAX RED (U) COIL WHITE (V) BLACK (W) U-V 35 ±...
  • Page 33 COMPRESSOR MOTOR Compressor Motor Specifications MODEL RAC-70YH7 COMPRESSOR MODEL JU1015D9 PHASE SINGLE RATED VOLTAGE AC 220 ~ 240 V RATED FREQUENCY 50/60 Hz POLE NUMBER WHITE CONNECTION YELLOW 20°C 2M = 1.2984 (68°F) RESISTANCE VALUE 75°C 2M = 1.7671 (167°F)
  • Page 34 – 33 –...

  • Page 35: Circuit Diagram

    CIRCUIT DIAGRAM Remote Control – 35 –...
  • Page 36 CIRCUIT DIAGRAM MODEL RAS-70YH7 – 37 –...
  • Page 37 CIRCUIT DIAGRAM MODEL RAC-70YH7 – 39 –...

  • Page 38: Printed Wiring Board Location Diagram

    PRINTED WIRING BOARD LOCATION DIAGRAM MODEL RAS-70YH7 MAIN P.W.B. Marking on P.W.B COMPONENT SIDE SOLDERING SIDE RECEIVING P.W.B. Marking on P.W.B – 41 –...
  • Page 39 MODEL RAC-70YH7 P.W.B. MAIN – 42 –...
  • Page 40 P.W.B. IPM-BOARD P.W.B. NF-BOARD – 43 –...
  • Page 41 – 44 –...
  • Page 42 29. 66 – 45 –...
  • Page 43 Table 1 Mode data file RAS-70YH7 LABEL NAME VALUE WMAX 5700 min –1 –1 WMAX2 5700 min –1 WSTD 5400 min –1 WBEMAX 4000 min –1 CMAX 5200 min –1 CSTD 4900 min CKYMAX 4000 min –1 –1 CJKMAX 4000 min –1 CBEMAX 2300 min...
  • Page 44 ∆ Table 2 TCMAX Temperature Calculated difference compressor rpm 1.66 2265 min –1 2435 min –1 –1 2.33 2600 min 2.66 2765 min –1 2935 min –1 3.33 3100 min –1 –1 3.66 3265 min 3435 min –1 4.33 3600 min –1 –1 4.66...
  • Page 45 Cooling Sleep Operation Final set temperature (Cooling/dehumidifying set temperature (+) sleep shift) (Cooling/dehumidifying set 0.5hr 1.5hr 2.5hr 3.5hr temperature = Remote control set temperature (+) SHIFTC) Set to 7 hours Sleep key Operation lamp Timer lamp Indoor See basic operation Silent (Sleep) Outdoor fan Horizontal air...
  • Page 46 – 53 –...
  • Page 47 ∆ Table 3 TWMAX Basic Heating Operation Temperature Calculated difference compressor rpm 1.66 1965 min –1 –1 2135 min 2.33 2300 min –1 2.66 2465 min –1 Heating set temperature (remote control set temperature (+)) 2635 min –1 –1 3.33 2800 min Dash period 18ßC...
  • Page 48 DFTIM_OTP5 DFTIM_OTP10 1. Refer to the Table 1 Mode data file on page 47 for the constants expressed by capital alphabet letters in the drawing. DFTIM_OTP0 DFTIM_OTP0. DFTIM_OTP0 – 57 –...

  • Page 49: Refrigerating Cycle Diagram

    REFRIGERATING CYCLE DIAGRAM MODEL RAS-70YH7/RAC-70YH7 COOLING, DEHUMIDIFYING, DEFROSTING INDOOR UNIT OUTDOOR UNIT COND S-TANK COMP REVERSING VALVE (5/8") 5S VALVE SILENCER EXPANSION VALVE THERMISTOR STRAINER STRAINER (1/4") 2S VALVE HEATING INDOOR UNIT OUTDOOR UNIT COND S-TANK COMP REVERSING VALVE (5/8")
  • Page 50 – 60 –...

  • Page 51: Description Of Main Circuit Operation

    DESCRIPTION OF MAIN CIRCUIT OPERATION RAS-70YH7 1. Reset Circuit Micro computer Q202 AX-7X30 Q201 C202 DC12V Line DC5V Line Base POWER ON POWER OFF Micro computer Pin 7 The reset circuit is used to reset the program to its initial settings when the power is turned on or when the power is recovered after a power failure.
  • Page 52 2. Buzzer Circuit Micro computer (AX-7X30) BUZZER When the buzzer is to be activated, buzzer output pin of the micro computer alternates between ON and OFF repeatedly at 4kHz and Q301 is turned ON/OFF accordingly. A 4kHz voltage/frequency is applied to the buzzer and the diaphragm of the buzzer vibrates to output 4kHz sound.
  • Page 53 5. Auto Sweep Motor Circuit CN12/CN11 Auto sweep motor for horizontal air deflectors Rotor IC501 Fig. 5-1 Auto Sweep Motor Circuit (Horizontal air deflectors only) Fig. 5-1 shows the Auto sweep motor drive circuit; the signals shown in Fig. 5-2 are output from pins –...
  • Page 54 6. Room Temperature Thermistor Circuit Fig. 6-1 shows the room temperature The voltage at A depends on the room thermistor circuit. temperature as shown in Fig. 6-2. Room Micro temperature computer thermistor R309 Room temp. input R310 C302 Fig. 6-1 Fig.
  • Page 55 8. Temporary Switch TEMPORARY SW Temporary switch R609 MICRO COMPUTER Fig. 8-1 The temporary switch is used to operate the air conditioner temporarily when the wireless remote control is lost or faulty. The air conditioner operates in the previous mode at the previously set temperature. However, when the power switch is set to OFF, it starts automatic operation.
  • Page 56 RAC-70YH7 220-240 220-240 3.15A – 66 –...
  • Page 57 AC220~240V DC260~360V – 67 –...
  • Page 58 C001 ~ C007, C015, C016, C026, C027, L004, L005 – 68 –...
  • Page 59 3. Reversing valve control circuit I/F 35V Reversing valve R437 D401 PQ701 Q401 R435 R436 DC voltmeter or tester I/F 0V Fig. 3 – 1 Reversing valve control circuit can switch reversing valve ON/OFF according to instruction from indoor microcomputer depending on the operation condition shows in Table 3-1. Voltage at each point in each operation condition is approximately as shown below when measured by tester.
  • Page 60 – 70 –...
  • Page 61 – 71 –...
  • Page 62 (3.15A Fuse) – 72 –...
  • Page 63 3.15A 3.15A (DC260~360V) – 73 –...

  • Page 64: Service Call Q & A

    SERVICE CALL Q & A COOLING MODE The compressor has stopped Check if indoor heat If the air conditioner operates suddenly during cooling exchanger is frosted. in cooling mode when it is cold, operation. Wait for 3-4 minutes the evaporator may get frosted. until it is defrosted.
  • Page 65 AUTO FRESH DEFROSTING AUTO OPERATION NICE TEMPERATURE RESERVATION – 75 –...
  • Page 66 – 76 –...
  • Page 67 – 77 –...

  • Page 68: Trouble Shooting

    TROUBLE SHOOTING – 78 –...
  • Page 69 DISCHARGE PROCEDURE AND METHOD TO STOP ENERGIZE THE POWER CIRCUIT – 79 –...
  • Page 70 – 80 –...
  • Page 71 CHECKING THE INDOOR TIMER LAMP IF BLINKING 1 TIME 140 50 3.15A Replace fuse or P.W.B Main. Replace P.W.Bs. circuit diagram – 81 –...
  • Page 72 CHECKING THE INDOOR/OUTDOOR UNIT ELECTRICAL PARTS AND REFRIGERATING CYCLE Timer lamp See Troubleshooting when the timer lamp Does the timer lamp on the indoor unit blink? blinks . Remove the terminal cover and check the voltage between terminal (C) and terminal (D) Does the operation lamp on the indoor unit Terminal D Terminal C...
  • Page 73 TROUBLESHOOTING WHEN TIMER LAMP BLINKS. Perform troubleshooting according to the number of times the indoor timer lamp and outdoor LD301 blink. SELF-DIAGNOSIS LIGHTING MODE Blinking of Timer lamp Reason for indication Possible cause Reversing valve defective (1) Reversing valve defective When the indoor heat exchanger (2) Heat exchanger thermistor dis- temperature is too low in the...
  • Page 74 CHECKING INDOOR UNIT ELECTRICAL PARTS 1. Power does not come on (no operation) Is AC 220-240V AC being generated Is DC 35V being generated between Check AC outlet and breaker, and between terminals L and N on the terminals C and D on the terminal repair any defective part.
  • Page 75 2. Outdoor unit does not operate (but receives remote infrared signal) – 85 –...
  • Page 76 3. Only indoor fan does not operate (other is normal) 4. Air deflector does not move (others are normal) Check the T001 and interface relay. 5. All systems stop from several seconds to several minutes after operation is started (all indicators are also off) Disconnect joint connector at indoor fan motor and set to the fan mode again.
  • Page 77 6. Check the main P.W.B (power circuit) Is DC 35V being output D701 and C701 may be Is DC 35V being output between cathode and defective at terminals C and D? mode of D701 Is DC 12V being supplied There is a defective between accross the control side the 12V output of switching (coil terminal) of interface relay...
  • Page 78 – 88 –...
  • Page 79 – 89 –...
  • Page 80 – 90 –...
  • Page 81 – 91 –...
  • Page 82 1. Switch OFF main power supply. 2. Short circuit between JW001 and JW002. 3. Switch ON main power supply – LD302 will blink 1 time. 4. (Within 3 minutes) Press Test/Service Switch for 1 second or more. 5. Self-diagnosis result will be shown – LD303 will ON (LIT) and LD301 will be blinking. Then refer to diagnosis table 2.
  • Page 83 – 93 –...
  • Page 84 – 94 –...
  • Page 85 SELF-DIAGNOSIS LIGHTING MODE – 95 –...
  • Page 86 CHECKING THE REMOTE CONTROLLER – 96 –...
  • Page 87 (JUDGING BETWEEN GAS LEAKAGE AND CHECKING THE REFRIGERATING CYCLE COMPRESSOR DEFECTIVE) 1. Troubleshooting procedure (No operation, No heating, No cooling) Lighting mode Blinks Blinks Blinks Blinks Blinks Blinks Connect U,V,W phase leads to the Self- 2 times 3 times 4 times 5 times 6 times 8times...

  • Page 88: Parts List And Diagram

    PARTS LIST AND DIAGRAM INDOOR UNIT MODEL : RAS-70YH7 – 98 –...
  • Page 89 MODEL RAS-70YH7 PART N0. Q’TY / UNIT PARTS NAME PMRAS-30CHP6 002 CABINET ASSY PMRAS-72CHA3 013 MOUNTING PLATE PMRAS-80YHA FAN MOTOR PMRAS-80YHA TANGENTIAL FAN PMRAS-72CHA3 017 P-BEARING ASSY PMRAS-72CHA3 007 FAN MOTOR SUPPORT PMRAS-70YH7 CYCLE ASSY PMRAS-72CHA3 005 BEARING COVER PMRAS-24CE9G 004 PIPE SUPPORT (U-COVER) PMRAS-80YHA DRAIN PAN ASSY...

  • Page 90: Outdoor Unit

    PARTS LIST AND DIAGRAM OUTDOOR UNIT MODEL : RAC-70YH7 – 100 –...
  • Page 91 MODEL RAC-70YH7 PART N0. Q’TY / UNIT PARTS NAME PMRAC-60YH7 COMPRESSOR KPNT1 PUSH NUT RAC-2226HV COMPRESSOR RUBBER PMRAC-70YHA CONDENSER PMRAC-70YHA1 REVERSING VALVE PMRAC-25NH4 ELECTRICAL EXPANSION COIL PMRAC-80YHA VALVE (5S) PMRAC-50NH4 VALVE (2S) PMRAM-72Q8 THERMISTOR (OH) PMRAC-25NH4 OVERHEAT THERMISTOR SUPPORT PMRAC-X13CX...
  • Page 92 RAS-70YH7 / RAC-70YH7 PM NO. 0465E Printed in Malaysia...

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