DAEWOO ELECTRONICS TAC-07CHSA Service Manual
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DAEWOO ELECTRONICS TAC-07CHSA Service Manual

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WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS
SERVICE MANUAL
Models
TAC-07CHSA
TAC-12CHSA
TAC-24CHSA
CONTENTS
4.
6. EXPLOSION VIEW AND PART LISTS
No.180807
TAC-09CHSA
TAC-18CHSA

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Summary of Contents for DAEWOO ELECTRONICS TAC-07CHSA

  • Page 1: Table Of Contents

    WALL MOUNTED SPLIT-TYPE AIR CONDITIONERS SERVICE MANUAL No.180807 Models TAC-07CHSA TAC-09CHSA TAC-12CHSA TAC-18CHSA TAC-24CHSA CONTENTS 1. IMPORTANT NOTICE 2. PRODUCT DIMENSIONS 3. REFRIGERATION CYCLE DIAGRAM OPERATION DETAILS 5. WIRING DIAGRAM 6. EXPLOSION VIEW AND PART LISTS 7. PRECAUTION 8. NAMES OF PARTS 9.

  • Page 2: Important Notice

    Air Conditioner Service Manual 1. IMPORTANT NOTICE This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.

  • Page 3: Product Dimensions

    Air Conditioner Service Manual PRODUCT DIMENSIONS Indoor Unit: Outdoor Unit: Indoor unit Outdoor unit Model TAC-07CHSA TAC-09CHSA TAC-12CHSA 439.2 277.8 TAC-18CHSA 277.8 TAC-24CHSA...

  • Page 4: Refrigeration Cycle Diagram

    Air Conditioner Service Manual 3. Refrigeration cycle diagram Cooling only Liquid side 2-way valve Capillary Heat exchange Heat exchange (Evaporator) (condenser) Gas side 3-way valve Accumulator Compressor Heat pump Check valve Liquid side 2-way valve Capillary Assembly Heat exchange Heat exchange (Evaporator) (condenser) Gas side...

  • Page 5: Operation Details

    Air Conditioner Service Manual 4. Operation Details Remote controller ON/OFF button To switch the conditioner on and off. ECO button In cooling mode,press this button ,the temperature will increase 2 on the base of setting temperature: In heating mode, press this button, the temperature will decrease 2 on the base of setting temperature.
  • Page 6 Air Conditioner Service Manual Electronic controller NOTES: RT-------Room Temperature. IPT------Indoor Pipe Temperature. ST------indoor Setting Temperature. OPT---Outdoor Pipe Temperature. CRT---Compensated Room Temperature 1. Automatic mode 1) The initial RT determines A/C working mode and the setting temperature (ST), the mode is determined effective only once unless A/C shut-down and then re-started.
  • Page 7 Air Conditioner Service Manual b. Indoor fan motor automatic airflow speed control, it works as shown in Figure 1: RT－ST 1°C 2°C 4°C Figure 1 Cooling automatic airflow When the temperature changing leads the fan speed variation, the switch can only be made orderly, and in every grade of air flow speed should run 1 minute at least.
  • Page 8 Air C Conditioner Se rvice Manual 6) Defro osting functio During de efrosting, on ce mode ch anging, eco nomic opera ation or temp perature set tting signals received, th buzzer an nd display w will make res sponse imme ediately, but t the other o perations wo...
  • Page 9 Air Conditioner Service Manual Running into defrosting under condition 3, defrosting time set is 10 min. a) Running into the first defrosting in 20 min after start-up. b) The interval from last defrosting equivalent to or more than 50 min (stopping the compressor or the machine in standby is allowed in the meantime).
  • Page 10 Air Conditioner Service Manual d. auxiliary electric heating is turned off for more than 30s。 e. ST-RT≥0°C; f. RT﹤25°C; g. IPT≤43°C; (3) The conditions of stopping auxiliary electric heating(any one of the following conditions met, the state stops) a. the compressor stops b.
  • Page 11 Air Conditioner Service Manual Under emergency operation, the function of compressor’s time-delay protection, Anti-frosting protection in cooling mode, Overheating protection in heating mode, sensor fault protection and defrost operate are effective. Under emergency operation, once effective signal from remote controller received, the A/C exits form of emergency mode without delay, and operates according to the setting value from remote controller immediately.
  • Page 12 Air Conditioner Service Manual b. When the indoor fan motor running at a low-speed under cold air prevention operation, once auxiliary electric heating works, the vane immediately withdraws from the cold air prevention location and turn back to normal vane angle. While auxiliary electric heating stops, indoor fan motor goes on to run at low-speed accordingly, the vane turns to cold air prevention location Set fan speed Set fan speed...

  • Page 13: Wiring Diagram

    Air Conditioner Service Manual 5. WIRING DIAGRAM MODEL: TAC-07CHSA, TAC-09CHSA, TAC-12CHSA ，TAC-18CHSA, TAC-24CHSA INDOOR UNIT: OUTDOOR UNIT...
  • Page 14 Air Conditioner Service Manual 6. EXPLOSION VIEW AND PARTS EXPLOSION VIEW Mode: TAC-07CHSA, TAC-09CHSA INDOOR UNIT:...
  • Page 15 Air Conditioner Service Manual PARTS LIST Indoor unit-TAC-07CHSA Part No. Part Name Remark Q’ty 1080030003 Installation Plate 210738121 Base 210738389 Vertical Vane Assembly 210738431 Vertical Vane Connector 210738122 Vane 210738131 Cross Fan 1070100010 Bearing Mount 211238000 Evaporator 210738120 Face Frame...
  • Page 16 Air Conditioner Service Manual Indoor unit-TAC-09CHSA Part No. Part Name Remark Q’ty 1080030003 Installation Plate 210738121 Base 210738389 Vertical Vane Assembly 210738431 Vertical Vane Connector 210738122 Vane 210738131 Cross Fan 1070100010 Bearing Mount 211238000 Evaporator 210738120 Face Frame 210701846 Screw Cover 210738433 Air Filter 210705767...
  • Page 17 Air Conditioner Service Manual Mode: TAC-12CHSA INDOOR UNIT:...
  • Page 18 Air Conditioner Service Manual Indoor unit-TAC-12CHSA Part No. Part Name Remark Q’ty 1080030003 Installation Plate 210738411B Base 210701880 Vertical Vane Assembly 210737655 Cross Fan 1070100010 Bearing Mount 211238554 Evaporator 210737662 Face Frame 210701846 Screw Cover 210737659 Vane 210701863 Air Filter 210705767 Display PCB Box 210901127S...
  • Page 19 Air Conditioner Service Manual Mode: TAC-18CHSA, TAC-24CHSA INDOOR UNIT:...
  • Page 20 Air Conditioner Service Manual Indoor unit-TAC-18CHSA Part No. Part Name Remark Q’ty 1080030021 Installation Plate 210738678 Base 210738575 Vertical Vane Assembly 210738580 Vertical Vane Connector 210738661 Vane 1070020024AA Cross Fan 1070100010 Bearing Mount 211237947 Evaporator 210738663 Face Frame 210701846 Screw Cover 210738606 Air Filter 210705767...
  • Page 21 Air Conditioner Service Manual Indoor unit-TAC-24CHSA Part No. Part Name Remark Q’ty 1080030021 Installation Plate 210738678 Base 210738575 Vertical Vane Assembly 210738580 Vertical Vane Connector 210738661 Vane 1070020042AA Cross Fan 1070100010 Bearing Mount 211238333 Evaporator 210738663 Face Frame 210701846 Screw Cover 210738606 Air Filter 210705767...
  • Page 22 Air Conditioner Service Manual MODEL: TAC-07CHSA, TAC-09CHSA, TAC-12CHSA TAC-18CHSA, TAC-24CHSA OUTDOOR UNIT:...
  • Page 23 Air Conditioner Service Manual Outdoor unit: TAC-07CHSA Part No. Part Name Remark Q’ty 1071990038 Grille Optional 1081990014 Top Cover 211232279A Condenser 1081990018 Outdoor Motor Supporter 1170040071 Outdoor Motor 1070030006AA Propeller Fan 1081990011 Left Grille Supporter 1081990016 Front Plate 1070251929 Fan Guard...
  • Page 24 Air Conditioner Service Manual Outdoor unit: TAC-09CHSA Part No. Part Name Remark Q’ty 1071990038 Grille Optional 1081990014 Top Cover 211232279A Condenser 1081990018 Outdoor Motor Supporter 1170040071 Outdoor Motor 1070030006AA Propeller Fan 1081990011 Left Grille Supporter 1081990016 Front Plate 1070251929 Fan Guard 211238496 Compressor 1120110016...
  • Page 25 Air Conditioner Service Manual Outdoor unit: TAC-12CHSA Part No. Part Name Remark Q’ty 1071990039 Grille Optional 1080320105 Top Cover 211238586 Condenser 1080050004 Outdoor Motor Supporter 1170040058 Outdoor Motor 1070030050AA Propeller Fan 1080050001 Left Grille Supporter 210800274 Front Plate 1070251931 Fan Guard 1100011049 Compressor 1120110016...
  • Page 26 Air Conditioner Service Manual Outdoor unit: TAC-18CHSA Part No. Part Name Remark Q’ty 1071990040 back Grille Optional 1080050011 Top Cover 211200883A Condenser 1080050004 Outdoor Motor Supporter 1170040059 Outdoor Motor 1070030038AA Propeller Fan 1080050001 Left Grille Supporter 210800275 Front Plate 1070251931 Fan Guard 211238303 Compressor...
  • Page 27 Air Conditioner Service Manual Outdoor unit: TAC-24CHSA Part No. Part Name Remark Q’ty 1081990065 Grille Optional 1081990056 Top Cover 211206428 Condenser 1081990060 Outdoor Motor Supporter 1170040100 Outdoor Motor 1070030040AA Propeller Fan 1081990053 Left Grille Supporter 1081990258 Front Plate 1071990096 Fan Guard 211232872 Compressor 1120110017...

  • Page 28: Precaution

    Air Conditioner Service Manual 7. Precaution 7.1 SAFETY RULES AND RECOMMENDATIONS FOR THE INSTALLATION Read this guide before installing and using the appliance. During the installation of the indoor and outdoor units the access to the working area should be forbidden to children. Unforeseeable accidents could happen.
  • Page 29 Air Conditioner Service Manual 7.2 SAFETY RULES AND RECOMMENDATIONS FOR THE USER Do not try to install the conditioner alone; always contact specialized technical personnel. Cleaning and maintenance must be carried out by specialized technical personnel. In any case disconnect the appliance from the mains electricity supply before carrying out any cleaning or maintenance.

  • Page 30: Names Of Parts

    Air Conditioner Service Manual 8. Names of parts INDOOR UNIT Indoor unit 2-3 4 Name Front panel Air filter Special filter(option) Display PCB Vertical vane Horizontal vane Remote controller Outdoor unit Name Air outlet grille Electronic box cover 2-way valve 3-way valve OUTD OOR UNIT...

  • Page 31: Installation

    Air Conditioner Service Manual 9. Installation manual 9.1 Information for installation Connecting pipe Pipe size(Inch) Model Liquid TAC-07CHSA TAC-09CHSA TAC-12CHSA TAC-18CHSA TAC-24CHSA Indoor unit Outdoor unit Pipe l ength is Pi pe length is 15 meters Max. 15 meters Max.
  • Page 32 Air Conditioner Service Manual 9.2 Installation for the first time Indoor unit Install the indoor unit level on a strong wall that is not subject to vibrations The inlet and outlet ports should not be Mounting plate obstructed: the air should be able to blow all over the room.
  • Page 33 Air Conditioner Service Manual Install the indoor unit in the room to be air conditioning, avoiding to installation in corridors or communal areas. Install the indoor unit at a height of at least 2.5m from the ground. To install, proceed as follows: 9.2.1 Installation of the mounting plate.
  • Page 34 Air Conditioner Service Manual 6).The plug must be accessible also after the appliance has been installed so that it can be pulled out if necessary. .An efficient earth connection must be ensured. 8).If the power cable is damaged, it must be replaced by an authorized Service Centre.
  • Page 35 Air Conditioner Service Manual 4).If the piping is installed to the right, the pipes, power cable and drain hose must be lagged and secured onto the rear of the unit with a pipe connection. Insert the pipe connection into the relative slot.

  • Page 36: Trouble Shooting

    Air Conditioner Service Manual 10. Trouble shooting 10.1 Product does not operate at all. Power receptable voltage  Product input voltage  Power supply voltage check PCB assembly  Power input voltage  Driving load terminal   Connector contact check  Display PCB connector  Power trans output voltage AC about 12±3V  PCB assembly check...
  • Page 37 Air Conditioner Service Manual 11.2 Sensor failure (E1, E2). Connect again Connector contact check Sensor resistance check Replace the sensor Main PCB check and replace 11.3 Indoor fan does not operate at all (E6). Check: Connector contact Motor output connector check Motor capacitor Check:...
  • Page 38 Air Conditioner Service Manual 11.4 System protection (E4) When the unit operation, after 5 minutes, the system will check the temperature of the pipe, if the temperature is at least 2 ℃ less than before operation the system is normal, otherwise Freon short of system and display E4.
  • Page 39 Air Conditioner Service Manual   10.3 Compressor or outdoor fan does not operate at all. Re-input after power off Set the desired temperature of remote controller to be lower by 2°C or over than room temperature, and start the cooling operation. Repeat running/stopping Does not operate at all.
  • Page 40 Air Conditioner Service Manual   10.4 Vane does not operate at all. Vane bending, structures interference check Connector check (Broken/short circuit/mal- connection) Replace the vane motor Vane motor check PCB assembly check(vane Replace the PCB motor driving circuit) 10.5 Cooling/heating conversion is disable. Heating operation ON by remote controller Connector check...
  • Page 41 Air Conditioner Service Manual 11.5 Examples of repairing 11.5.1 Display E1 or E2 Reasons: 1) The sensor connection terminal loose or not plugged in. Solution: Check the connecter of sensor and slot (CN6), if loose or not plugged in, please connect again.
  • Page 42 Air Conditioner Service Manual 2) The indoor motor damage. Solution: Check and replace the motor. 3) The indoor main PCB damage. Solution: Replace the indoor main PCB.
  • Page 43 Air Conditioner Service Manual 10.6 THERMISTOR TEMPERATURE CHARACTERISTICS Indoor unit room temperature and pipe temperature characteristics TEMP. Resistance Voltage of TEMP. Resistance Voltage of TEMP. Resistance Voltage of (℃) (k Ohm) resistance (℃) (k Ohm) resistance (℃) (k Ohm) resistance 63.513 4.628 7.447...
  • Page 44 Air Conditioner Service Manual Resistance at 25℃: 5 kΩ. TH1: indoor room temperature sensor and outside air temperature sensor TH2: indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance, disconnect connectors as shown above.

This manual is also suitable for:

Tac-09chsaTac-12chsaTac-18chsaTac-24chsa

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