Service Manual
Page 7
...; It may cause There is risk of fire or electric shock. Service Manual 7 Do not store or use flammable Do not use the telephone or turn off the gas and open a window for a long product. time. • There is risk of product, or electric shock. Stop operation and close the window... touch(operate) the product with wet hands. • There is risk of fire or failure of fire and electric shock. Gasolin When flammable gas leaks, turn switches on . • Do not use the product in storm or hurricane. There is risk of explosion or fire If strange sounds, or small or...
...; It may cause There is risk of fire or electric shock. Service Manual 7 Do not store or use flammable Do not use the telephone or turn off the gas and open a window for a long product. time. • There is risk of product, or electric shock. Stop operation and close the window... touch(operate) the product with wet hands. • There is risk of fire or failure of fire and electric shock. Gasolin When flammable gas leaks, turn switches on . • Do not use the product in storm or hurricane. There is risk of explosion or fire If strange sounds, or small or...
Service Manual
Page 8
Install the drain hose to ensure that nobody could step on connect the power supply plug or turn off when cleaning or maintaining the product. • There is risk of product. installing the product. • Low refrigerant levels may cause • A bad connection ... physical injury, electric shock, or product failure. • There is risk of fire or electric shock. • There is risk of fire or electric shock. Turn the main power off the breaker. ed operation. Ventilate the product from time to ensure that Keep level even when age after installation or repair...
Install the drain hose to ensure that nobody could step on connect the power supply plug or turn off when cleaning or maintaining the product. • There is risk of product. installing the product. • Low refrigerant levels may cause • A bad connection ... physical injury, electric shock, or product failure. • There is risk of fire or electric shock. • There is risk of fire or electric shock. Turn the main power off the breaker. ed operation. Ventilate the product from time to ensure that Keep level even when age after installation or repair...
Service Manual
Page 37
...for evacuation varies with tubing length and capacity of liquid side valve counter-clockwise to fully open the valve. 2. With a service valve wrench, turn the valve stem of the pump. This completes air purging with an adjustable wrench. NOTICE : Repeat evacuation procedure for evacuation. The following table shows...longer than 10m (33 ft) If tubing length is reached, close the "Lo" knob of the manifold valve and stop the vacuum pump. Turn the valve stem of the manifold valve is very important to fully open . or more Indoor unit Outdoor unit 2. or more 15 min. ...
...for evacuation varies with tubing length and capacity of liquid side valve counter-clockwise to fully open the valve. 2. With a service valve wrench, turn the valve stem of the pump. This completes air purging with an adjustable wrench. NOTICE : Repeat evacuation procedure for evacuation. The following table shows...longer than 10m (33 ft) If tubing length is reached, close the "Lo" knob of the manifold valve and stop the vacuum pump. Turn the valve stem of the manifold valve is very important to fully open . or more Indoor unit Outdoor unit 2. or more 15 min. ...
Service Manual
Page 40
Operation Operation Function of the setting. While compressor is off when timer mode is automatically set according to operate again. I Cooling Mode Operation • When the intake air temperature reaches 0.5°C(32.9°F) below the setting temp, the compressor and the outdoor fan stop. • When it reaches 0.5°C(32.9°F) above the setting temp, they start to the intake air temperature. 26°C(78.8°F) ≤ Intake Air Temp ➲ 25°C(77°F) 24°C(75.2°F) ≤ Intake Intake Air Temp Compressor ON Temp ➲ Setting Temp...
Operation Operation Function of the setting. While compressor is off when timer mode is automatically set according to operate again. I Cooling Mode Operation • When the intake air temperature reaches 0.5°C(32.9°F) below the setting temp, the compressor and the outdoor fan stop. • When it reaches 0.5°C(32.9°F) above the setting temp, they start to the intake air temperature. 26°C(78.8°F) ≤ Intake Air Temp ➲ 25°C(77°F) 24°C(75.2°F) ≤ Intake Intake Air Temp Compressor ON Temp ➲ Setting Temp...
Service Manual
Page 41
... since the operation off, the operation mode is selected. • When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are turned off and only the indoor fan is selected according to the intake air temp at that moment as follows. 24°C(75.2°F) ≤ Inatake...
... since the operation off, the operation mode is selected. • When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are turned off and only the indoor fan is selected according to the intake air temp at that moment as follows. 24°C(75.2°F) ≤ Inatake...
Service Manual
Page 42
...; 25°C(77°F) 24°C(75.2°F) ≤ Intake Air Temp When 0.5°C(32.9°F) or more below the setting temp, the compressor is turned on. Compressor ON Temp ➲ Setting Temp + 0.5°C(32.9°F) Compressor OFF Temp ➲ Setting Temp+0.5°C(32.9°F) • At the beginning of Fuzzy... the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(32.9°F) or more above the setting temp, the compressor is turned off.
...; 25°C(77°F) 24°C(75.2°F) ≤ Intake Air Temp When 0.5°C(32.9°F) or more below the setting temp, the compressor is turned on. Compressor ON Temp ➲ Setting Temp + 0.5°C(32.9°F) Compressor OFF Temp ➲ Setting Temp+0.5°C(32.9°F) • At the beginning of Fuzzy... the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(32.9°F) or more above the setting temp, the compressor is turned off.
Service Manual
Page 47
...Unit Two Comp algorithm • Inverter Comp is first priority and then Constant Comp is too high(around 36.7 kgf/cm2), it will turn off comp A Service Manual 47 Operating Step • Compressor step varies considering condition such as room temp,outdoor temp, operating room number,... from deice operation in case outdoor pipe temp is modulated to Oil Return System • In single(one) comp operation duration, another comp will turn off the comp. R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to the load condition. LEV ...
...Unit Two Comp algorithm • Inverter Comp is first priority and then Constant Comp is too high(around 36.7 kgf/cm2), it will turn off comp A Service Manual 47 Operating Step • Compressor step varies considering condition such as room temp,outdoor temp, operating room number,... from deice operation in case outdoor pipe temp is modulated to Oil Return System • In single(one) comp operation duration, another comp will turn off the comp. R/Valve Control(Heating Model Only) • Convert R/Valve to change cooling to heating, heating to the load condition. LEV ...
Service Manual
Page 65
... error is released, error LED is also released simultaneously. • To operate again on the occurrence of error code, be sure to turn off the power and then turn on. • Having or not of error code is different from Model. LED1 LED2 Indoor Error Error code Description MPS Variable LED1 00...
... error is released, error LED is also released simultaneously. • To operate again on the occurrence of error code, be sure to turn off the power and then turn on. • Having or not of error code is different from Model. LED1 LED2 Indoor Error Error code Description MPS Variable LED1 00...
Service Manual
Page 67
... The Product doesn't operate at all. Ass'y (Fuse, Noise Filter, Power Transformer, IC01D, IC02D, etc.) YES • Primarily, the operating condi- Troubleshooting Guide Turn off . former. 2) The output voltage of power transformer. 3) IC01D(7812) 4) IC02D(7805) 5) IC01A(KIA7036) Specification 1) AC230V ± 30V : Check the... • Check CN-DISP1 The operation check of the P.C.B. tion of Indoor/Outdoor connecting cable (each color) • The P.W.B. Turn on outdoor PCB is off the main power and wait until LED on the main power again. NO Check the voltage of power(AC208V/...
... The Product doesn't operate at all. Ass'y (Fuse, Noise Filter, Power Transformer, IC01D, IC02D, etc.) YES • Primarily, the operating condi- Troubleshooting Guide Turn off . former. 2) The output voltage of power transformer. 3) IC01D(7812) 4) IC02D(7805) 5) IC01A(KIA7036) Specification 1) AC230V ± 30V : Check the... • Check CN-DISP1 The operation check of the P.C.B. tion of Indoor/Outdoor connecting cable (each color) • The P.W.B. Turn on outdoor PCB is off the main power and wait until LED on the main power again. NO Check the voltage of power(AC208V/...
Service Manual
Page 68
Turn on main power. While the compressor has been stopped, the compressor does not operate owing to operate temperature regulating(L / M) and wind speed selecting. Check the ...
Turn on main power. While the compressor has been stopped, the compressor does not operate owing to operate temperature regulating(L / M) and wind speed selecting. Check the ...
Service Manual
Page 69
... (about 10K at least. Check Point Between Micom(No. 50,51) and GND Between IC01M(No. 10) and GND Comp. OFF DC 0V DC 12V Turn off main power. Service Manual 69 ON DC 5V DC 1V↓ Comp. Check the Relay(RY-PWR, RY-START) for Indoor temperature and connector... are don't operate Turn on the main power. When in air circulation mode, compressor/outdoor fan is less than one of the remote controller is stopped. Check the electrical...
... (about 10K at least. Check Point Between Micom(No. 50,51) and GND Between IC01M(No. 10) and GND Comp. OFF DC 0V DC 12V Turn off main power. Service Manual 69 ON DC 5V DC 1V↓ Comp. Check the Relay(RY-PWR, RY-START) for Indoor temperature and connector... are don't operate Turn on the main power. When in air circulation mode, compressor/outdoor fan is less than one of the remote controller is stopped. Check the electrical...
Service Manual
Page 70
Check the interference of outdoor unit PWB Assy's. Indoor Fan is turned on) 70 Multi type Air Conditioner NO YES Check the patterns and the conditions of Indoor Fan. Does the voltage of each terminals of CN-...
Check the interference of outdoor unit PWB Assy's. Indoor Fan is turned on) 70 Multi type Air Conditioner NO YES Check the patterns and the conditions of Indoor Fan. Does the voltage of each terminals of CN-...
Service Manual
Page 78
... (vacuum of 4 mmHg or less). 5. Vacuum pump oil. 2-way, 3-way Valve (2) Evacuation (All amount of the gauge turn off the vacuum pump, and confirm that the gauge needle does not move(approximately 5 minutes after turning off the vacuum pump). 6. Close the Low handle of refrigerant leaked) Indoor unit Liquid side Open 2-Way...
... (vacuum of 4 mmHg or less). 5. Vacuum pump oil. 2-way, 3-way Valve (2) Evacuation (All amount of the gauge turn off the vacuum pump, and confirm that the gauge needle does not move(approximately 5 minutes after turning off the vacuum pump). 6. Close the Low handle of refrigerant leaked) Indoor unit Liquid side Open 2-Way...
Service Manual
Page 79
... gauge to check for gas leakage. Open the low handle on the charge set to be charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose. 5. Because you are charging with liquid refrigerant from the charge hose. - Stopping partway will allow the gas...
... gauge to check for gas leakage. Open the low handle on the charge set to be charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose. 5. Because you are charging with liquid refrigerant from the charge hose. - Stopping partway will allow the gas...
