AW126JB/front 6/27/98 10:37 AM Page 2 ROOM AIR CONDITIONER AW126JB/127JB AW126JE/127JE AW12A6JD/12A7JD SERVICE AIR CONDITIONER Manual CONTENTS 1. Precautions 2. Product Specifications 3. Installation and Operating Instructions 4. Disassembly and Reassembly 5. Troubleshooting 6. Exploded Views and Parts List °C Hour COOL 7. Block Diagram FAN POWER / MODE 8. PCB Diagram 9. Wiring Diagram 10.
AW126JB-1 6/27/98 10:38 AM Page 1 1. Precautions 1. Warning: Prior to repair, disconnect the power cord from the circuit breaker. 2. Use proper parts: Use only exact replacement parts. (Also, we recommend replacing parts rather than repairing them.) 3. Use the proper tools: Use the proper tools and test equipment, and know how to use equipment may cause problems laterintermittent contact, for example. Fig. 1-1 Avoid Dangerous Contact 4.
AW126JB-1 6/27/98 10:38 AM Page 3 2. Product Specifications 2-1 Table Item Type Unit of Measure AW126/127JE AW126/127JB AW126JB(Mexico) AW12A6JD/12A7JD Remarks - Window mm 600 X 394 X 595 mm 715 X 470 X 655 Dimensions: (Width X Height X Depth) Packing Size (Width X Height X Depth) Voltage: Volt 220~240 220 200~220 - Single Single Single Frequency Hz 50 60 50 Operating Current A 5.8 6.3 6.
6/27/98 10:38 AM Page 4 2-2 Dimensions 2-2-1 Main Unit 595 Unit : mm Side view 394 Front view 394 AW126JB-1 °C Hour COOL FAN POWER / MODE 600 2-2-2 Remote Control Mode selection Buttons (FAN, COOL) Temperature adjustment buttons Fan speed adjustment Buttons (HIGH, LOW) 2-2 MODE Timer setting buttons ON/OFF Buttons Air flow swing button Samsung Electronics
AW126JB-1 6/27/98 10:38 AM Page 5 3. Installation and Operating Instructions 3-1 Installation * When selecting the area for installing the unit, be sure to obtain approval of the customer. 1. Make sure that you install the unit in an area that provides good ventilation. The air conditioner must not be blocked by any obstacle affecting the air flow near the air inlet and air outlet. 6. Make sure that you install the unit in an area which provides easy drainage for condensed water. 7.
AW126JB-1 6/27/98 10:38 AM Page 6 3-2 Function Description Remote control sensor Temperature/Timer settings °C Hour COOL Temperature indicator Timer indicator POWER/MODE BUTTON FAN POWER / MODE Operating mode indicator 3-2-1 Cooling operation mode The compressor is turned on and off according to the ambient temperature and set temperature. 1. Compressor on and off control • Compressor on and off control according to the ambient temperature.
AW126JB-1 6/27/98 10:38 AM Page 7 3-2-3 LED lamp and LED display indication in case of error detection ERROR OPERATION LED LAMP DISPLAY COOL FAN ROOM THERMISTOR (OPEN OR SHORT) Lamp 7-SEG LED DISPLAY E1 displayed blinking at every second (on for 0.5s and off for 0.5s) LED lamp off 1. Set operation in case of error occurrence. • Malfunction of each temperature sensor (open, short) - Error mode display, warning sound. - The operation status is off. 2.
AW126JB-1 6/27/98 10:38 AM Page 8 3-2-6 LED lamp operation specifications LAMP name COOL FAN (1) 3-4 Operations specifications The mode is set to "COOL" –> ON Others –> OFF The mode is set to "FAN" –> ON Others –> OFF ˚C The set temperature is displayed or set -> ON Others –> OFF HR During setting of the convenient reserve (OFF TIMER) time -> blinking After setting of the convenient reserve (OFF TIMER) time -> ON Others –> OFF (2) In case of (set) temperature display -> NO. (1) 7 seg.
AW126JB-1 6/27/98 10:38 AM Page 9 3-2-7 Resistor values table of “ROOM THERMISTOR” for each temperature Temperature [˚C] THERMISTOR RESISTOR [Kohm] Temperature [˚C] THERMISTOR RESISTOR [Kohm] 70 69 68 67 66 65 64 63 62 61 60 2.229 2.296 2.365 2.437 2.512 2.589 2.669 2.752 2.838 2.928 3.021 29 28 27 26 25 24 23 22 21 20 8.622 8.944 9.281 9.632 10.000 10.380 10.780 11.200 11.630 12.090 19 18 17 16 15 14 13 12 11 10 12.560 13.060 13.570 14.120 14.680 15.280 15.900 16.550 17.
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AW126JB-1 6/27/98 10:38 AM Page 12 4-2 Checking the oil Fill the transparent container with 10cc of oil, and then conduct the test. 4-2-1 Oil quality Refrigerant Cycle Oil Condition Remarks Color Odor Normal Light Yellow No Odor Return with the system Over-heated Brown - Oil Change Compressor damage Dark brown Pungent oil Oil Change 4-2-2 Replacing and refilling the refrigerant oil 1. Replacing the compressor - Do not fill the system with oil as the compressor is already charged. 2.
AW126JB-2 6/27/98 10:40 AM Page 1 4-3 Disassembly and Reassembly Procedure Stop operating the air conditioner, and pull out the power cord before repair. No. ① Part name Ass'y Grill Procedures Remarks 1. Pull the panel front and remove the screw on the grille °C Hour COOL FAN POWER / MODE 2. Hold the lower part of the grill with two hands while pressing down on both sides of the lower part of the cabinet, pull it forward by about 30, and then lift it up for removal.
AW126JB-2 6/27/98 10:40 AM Page 2 Disassembly and Reassembly No. Part name Procedures ➃ Frame Up 1. Remove 10 screws on the Frame Up. ➄ Case Cond & Propeller Fan 1. Remove two screws on the bottom side, and 5 screws on the case cond. Remarks 2.
AW126JB-2 6/27/98 10:40 AM Page 3 Disassembly and Reassembly No. ➅ Part name Blower & Motor Procedures Remarks 1. Remove two screws on the clip motor, and remove the clip motor. 2. Move the motor & blower toward the evap, and lift up the motor & blower from the frame low. ➆ Cond Casing Samsung Electronics 1.
AW126JB-2 6/27/98 10:40 AM Page 5 5. Troubleshooting Check the basic checkpoints first to determine whether it is machine trouble or a problem in the operation method. When it is not related to the basic checkpoints, perform checking in accordance with the procedures of troubleshooting by symptom. 5-1 Basic Checkpoints for Troubleshooting 1) Is the voltage of the power source appropriate ? (1)It should be within the range of AC 198V ~ 264V.
AW126JB-2 6/27/98 10:40 AM Page 6 5-2 Troubleshooting by Symptom 5-2-1 No power 1) Check points (1) Is the voltage of the power source normal ? (AC 198V ~ AC 264V) (2) Is the electric wire in good contact ?(CN 71, RY 71) (3) Is the output voltage of the IC01(KA 7812) normal ?(DC 11.5V ~ DC 12.5V) (4) Is the output voltage of the IC02(KA 7805) normal ?(DC 4.5V ~ DC 5.
AW126JB-2 6/27/98 10:40 AM Page 7 5-2-2 When the assembly panel PCB is not operated 1) Check points (1) Is the voltage of the power source normal ?(AC 198V ~ AC 264V) (2) Is the electric wire in good contact ?(CN71, RY71) (3) Is the connection of the assembly main PCB, and assembly panel PCB in good contact? (CN11, CN12) (4) Is the voltage of +12V normal ?(CN 12 No 1 pin and No 12 pin : +12V±0.5V) (5) Is the voltage of +5V normal ?(CN12 No 2 pin and No 12 pin : +5V±0.
AW126JB-2 6/27/98 10:40 AM Page 8 5-2-3 When the remocon is not operated 1) Check points (1) Is the voltage of the power source normal ? (AC 198 ~ AC 264V) (2) Is the electric wire in good contact ? (CN71, RY71) (3) Is the assembly main PCB in good contact with the assembly panel PCB?(CN11, CN12) (4) Is the voltage of +12V and +5V of the assembly panel PCB normal? (CN12 No 1 pin and No 12 pin : +12V, No 2 pin and No 12 pin : +5V) (5) Is the battery vortage of the remocon above DC 2.
AW126JB-2 6/27/98 10:40 AM Page 9 5-2-4 When the compressor is not operated 1) Check points (1) Is the voltage of the power source normal ? (AC 198V ~ AC 264V) (2) Is the desired temperature lower than the indoor temperature in the “COOL” mode? (Compressor stopped) (3) Is the desired temperature higher than the indoor temperature in the “HEAT” mode? (Compressor stopped) (4) Is the starting condenser in good contact? (5) Is the electric wire in good contact ? (CN71, RY71) (6) Is the output voltage of the
AW126JB-2 6/27/98 10:40 AM Page 10 5-2-5 When the air swing motor is not operated 1) Check points (1) Is the voltage of the power source normal ?(AC198V ~ AC264V) (2) Is the electric wire in good contact ?(CN71, RY71) (3) Is the swing motor connector in good contact?(CN71) (4) Is the terminal connected to the swing motor in good contact? (5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal? Turn off the power, and then turn it on again five seconds later. N Go to the clause "No power".
AW126JB-2 6/27/98 10:40 AM Page 11 5-2-6 When the fan motor does not operated 1) Check points (1) Is the voltage of the power source normal ?(AC198V ~ AC264V) (2) Is the electric wire in good contact ?(CN71, RY71) (3) Is the starting condenser in good contact? (4) Is the fan motor connector in good contact?(CN73) (5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ? Turn off the power, and then turn it on again five seconds later. N Go to the clause "No power".
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AW126JB-2 6/27/98 10:40 AM Page 13 ■ Part List Q'TY No. Code No.
AW126JB-2 6/27/98 10:40 AM Page 14 6-2 Ass’y Control 2 4 3 1 8 11 10 7 9 5 14 13 6-3 12 6 Samsung Electronics
AW126JB-3 6/27/98 10:42 AM Page 1 ■ Part List : ASS’Y CONTROL Q'TY No. Code No. Description Specification AW126JE AW127JE AW126JB AW127JB Remarks AW126JB (Mexico) AW12A6JD AW12A7JD 0 DB98-11178A DB98-11178C ASS’Y CONTROL ASS’Y CONTROL AW126JB AW126JE 1 1 1 - 1 - 1 - 1 1 1 DB61-10153A CASE CONTROL SECC-P, TO.
AW126JB-3 6/27/98 10:42 AM Page 2 6-3 ASS’Y REMOCON(DB93-30056C) 2 5 3 1 7 6 4 ■ Part List No. Code No.
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AW126JB-3 6/27/98 10:42 AM Page 4 7-2 Basic Structure 7-2-1 Micom Control Diagram MICOM LED CONTROL Room Temperature Sensor A/D converter • Mode(COOL, FAN) • Temperature Display • Temp • HR Receiving Unit of Remocon Remocon Single Receiving Remote Cotrol Compressor FAN SPEED(HIGH,LOW) • Air swing motor control TEMP.
AW126JB-3 6/27/98 10:42 AM Page 5 7-2-2 Micom Pin Assignment ( MB89635) MODEL OPTION TEMPERATURE OPTION GND RS-232C RS-232C GND GND GND BUZZER GND ROOM THERMISTOR INDOOR PIPE THERMISTOR OUTDOOR PIPE THERMISTOR GND GND GND DEICE TEMPERATURE OPTION DEICE TIME OPTION VCC VCC GND GND GND GND GND REMOTE CONTROL SINGLE INPUT RESET IC OUTPUT GND GND 10MHz RESONATOR 10MHz RESONATOR GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 P31 P30 P43 P42/UI2 P41/UO2 P40 P53 P5
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AW126JB-3 6/27/98 10:42 AM Page 7 ■ Part List No. Description Code No. Specification Q'TY Remarks 1 2 3 4 5 ASS’Y MAIN PCB FUSE DIODE RECT IC VOLT REGU IC VOLT REGU DB93-1010502A DE32-10037A 0402-000137 DE13-20008A DE13-20016A AW126JB FST 250V 3.
AW126JB-3 6/27/98 10:42 AM Page 8 8-2 Display PCB (ASS'Y CODE NO : DB93-10501A) ■ Part List No. Description Code No.
AW126JB-3 6/27/98 10:42 AM Page 9 8-3 ASS’Y PCB-REMOCON (ASS’Y CODE NO : DB93-10516B) (BOTTOM) (TOP) ■ Part List No. 1 2 3 4 5 6 7 8 9 10 11 12 Description Code No. PCB IC RESONATOR TR-CHIP IR-LED C-ELEC C-CERAMIC CHIP C-CERAMIC CHIP R-MG CHIP R-MG CHIP R-MG CHIP CHIP DIODE A3083-043-00 AC09-10453K A1283-0069 A4050-0168 A4150-0168 61079-421-120 A4150-131-101 A4150-131-101 61079-917-010 61079-917-564 61079-917-331 32167-662-012 Samsung Electronics Specification Q'TY 49 X 113.52 X 1.
AW126JB-3 6/27/98 10:42 AM Page 10 9. Wiring Diagram 9-1 AW126JB/127JB CAPACITOR : 3.5/30µF 450VAC POWER SOURCE : 220V~/60Hz 9-2 AW126JE/127JE/12A6JD/12A7JD CAPACITOR : 3.
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AW126JB-3 6/27/98 10:42 AM Page 11 10-2 Remote Control Samsung Electronics 10-2
