Related Manuals for Samsung AQ12AAMC
Summary of Contents for Samsung AQ12AAMC
-
Page 1: Table Of Contents
ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AQ12AA(B)MC UQ12AA(B)MC SERVICE Manual AIR CONDITIONER CONTENTS 1. Installation 2. Disassembly and Reassembly 3. Troubleshooting 4. Exploded Views and Parts List 5. Refrigerating Cycle Block Diagrams 6. Wiring Diagrams 7. Schematic Diagrams E DB98-05496A(1) -
Page 2: Installation
1. Installation 1-1 Refrigerant Refill Procedure • Refill an air-conditioner with refrigerant when refrigerant has been leaked at installing or using 1. Purge air(for new installation only). 2. Turn the 3-way valve clockwise to close, connect the pressure gauge(low pressure side) to the service valve, and open the 3-way valve again. - Page 3 1-2 “Pump down” Procedure • Pump down shall be carried out when an evaporator is replaced or when the unit is relocated in another area. 1. Remove the caps from the 2-way valve and the 3-way valve. 2. Turn the 3-way valve clockwise to close and connect a pressure gauge(low pressure side) to the service valve, and open the 3-way valve again.
-
Page 4: Disassembly And Reassembly
2. Disassembly and Reassembly Stop operation of the air conditioner and remove the power cord before repairing the unit. 2-1 Indoor Unit Parts Procedure Remark Front Grille 1) Stop the air conditioner operation and block the main power. 2) Separate tape of front panel upper. 3) Contract the second finger to the left, and right handle and pull to open the inlet grille. - Page 5 Parts Procedure Remark Electrical Parts 1) Do “1”above. (Main PCB) 2) Take all the connector of PCB upper side out. (Inclusion Power cord) 3) Separate the outdoor unit connection wire from the terminal block. 4) If pulling the Main PCB up. it will be taken out. 1) Do “1”, “2”, above.
- Page 6 2-2 Outdoor Unit UQ12AA(B)MC Parts Procedure Remark Common Work 1) Loosen the fixing one screws and separate the COVER TERMINAL. 2) Loosen the fixing one screws and seperate the cover control. 3) Separate the connection wire from the terminal block. 4) Loosen 13 fixing screws and separate the cabi front.
- Page 7 Parts Procedure Remark Fan and Motor 1) Do “1”, above. 2) Remove the nut flange (Turn to the right to remove, as it is a left hand screw) 3) Separate the fan. 4) Loosen four fixing screws to separate the motor. 5) Loosen five fixing screws and seperate the motor bracket from the base.
-
Page 8: Troubleshooting
3. Troubleshooting 3-1 Items to be checked first 1) The input voltage should be rating voltage ±10% range. The airconditioner may not operate properly if the voltage is out of this range. 2) Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 6 cables. -
Page 9: Fault Diagnosis By Symptom
3-2 Fault Diagnosis by Symptom 3-2-1 No Power(completely dead)-Initial diagnosis Checklist : (1) Is input voltage normal? (2) Is AC power linked correctly? (3) Is output voltage of DC regulator IC KA78L05 (IC02) normal? (4.5VDC-5.5VDC) Troubleshooting procedure Remove power cord and plug in again in approx. - Page 10 3-2-2 When the Indoor Unit Fan Does Not Operate. (Initial Diagnosis) Checklist : (1) Is the indoor unit fan motor properly connected with the connector (CN72)? (2) Is the AC voltage correct? (3) Is HALL IC in indoor fan motor properly connected with the connector (CN42)? (4) Is the running capacitor (CR71) properly connected with PCB board? Troubleshooting procedure After unplugging out the power cord should...
- Page 11 3-2-3 When the Outdoor Unit Does Not Operate. (Initial Diagnosis) Checklist : (1) Is input voltage normal? (2) Is the set temperature of the remote control higher than room temperature in COOL mode? (3) Is the POWER IN connector (CN71) linked correctly? (4) Is the outdoor unit properly connected with the TERMINAL BLOCK connector((N1), 1)? Troubleshooting procedure After unplugging out the power cord should be...
- Page 12 3-2-4 When the UP/DOWN Louver Motor Does Not Operate. (Initial Diagnosis) Checklist : (1) Is input voltage normal? (2) Is the UP/DOWN louver motor properly connected with the connector (CN61)? Troubleshooting procedure Remove power cord and plug in again in approx. 5 seconds. Check as in the procedure "No Power Is STD lamp blinking? parts".
- Page 13 3-2-6 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis) Troubleshooting procedure Remove power cord and plug in again approx. 5 Seconds Is operation lamp blinking? Check as in the procedure “NO Power parts”. Refer to page 8. “ “...
- Page 14 3-3 Set up the Model option The Method for Setting up the model option with remocon • It is necessary to set up option code after replacing the main-PCB as a service parts. Make sure that you can set up the option of code the remote controller after you replace the main PBA otherwise, the unit won’t be working properly and all LED lamps on display will be flickering.
- Page 15 ! If the first number is , it is correct otherwise press until appear. @ When pressing the button appear on the display, select one of them. # When pressing the button appear on the display, select one of them. $ When pressing the button appear on the display,...
- Page 16 <Table of the option code> MODEL OPTION CODE AQ12AAMC 017227-170340 AQ12ABMC 007227-170340...
-
Page 17: Exploded Views And Parts List
4. Exploded Views and Parts List 4-1 Indoor Unit 18-6 18-6-1 18-1 18-4 18-5 18-3 18-2 13-4 13-2 13-3 13-1... - Page 18 Parts List Q’TY Description REMARK CODE NO AQ12AA(B)MC DB64-00085A GRILLE AIR INLET DB63-00064B GUARD-AIR FILTER DB95-00287K FILTER CLEANER ASS´Y DB63-00067A COVER TEMINAL DB92-00031L ASS´Y PANEL DB67-00051A SPACER EVAP LOW DB67-00032A SPACER EVAP UP DB63-00083A COVER U BEND DB94-00020A ASS´Y FAN CROSS DB60-20011A BOLT SPECIAL DB31-00071B...
- Page 19 4-2 Outdoor Unit UQ12AA(B)MC...
- Page 20 Parts List Q’TY REMARK CODE NO Description Specification UQ12AA(B)MC DB63-00385A GUARD FAN HSER, CD 2.0 DB60-30020A NUT FLANGE 2C SM20C M6 NTR DB67-50063A PROPELLER-FAN AS+G/F, ø405 DB31-10058C MOTOR FAN OUT 220/240V, 60/50HZ DB90-00633E ASS´Y CABI FRONT ASS’Y ASS’Y DB90-00687D ASS´Y BASE OUT DB61-00887A BRAKET VALVE SECC-P, T1.6...
- Page 21 4-3 ASS’Y CONTROL IN (DB93-00459C) Parts List Description Specification Remark HOLDER CONTROL ASS’Y MAIN PCB DB93-01017A ASS’Y TERMINAL BLOCK DB65-00030A ASS’Y DISPLAY PCB DB93-00268A CONNECTOR WIRE PCB U/D SCREW PH, M3 x 20 HOLDER WIRE CLAMP SEAL PANEL FRONT RH SEAL H/CONTROL FRONT LABEL ASS’Y-THERMISTOR...
-
Page 22: Refrigerating Cycle Block Diagrams
5. Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT Capillary tube 2-way valve Liquid side Heat Heat exchanger exchanger (Evaporator) (Condenser) Gas side 3-way valve 4-way valve Cooling Heating Compressor Gas leak check point Refrigerating cycle temperature and pressure STD Pressure Piping Temp.(˚F) Use Temp. -
Page 23: Wiring Diagrams
6. Wiring Diagrams 6-1 Indoor Unit... - Page 24 6-2 Outdoor Unit UQ12AA(B)MC DIAGRAM-OUTDOOR C1 : 4µF x 450VAC C2 : 35µF x 450VAC...
-
Page 25: Schematic Diagrams
7. Schematic Diagrams 7-1 Indoor Unit... - Page 26 ELECTRONICS Printed in Korea.