Owners Manual
Page 3
... product. • There is risk of fire or electric may cause fire or electric shock shock. Use the correctly rated breaker or fuse. • Improper wiring or installation • There is classified by the following instructions must be followed. WARNING For electrical work, contact the dealer, seller, a qualified electrician, or an...
... product. • There is risk of fire or electric may cause fire or electric shock shock. Use the correctly rated breaker or fuse. • Improper wiring or installation • There is classified by the following instructions must be followed. WARNING For electrical work, contact the dealer, seller, a qualified electrician, or an...
Owners Manual
Page 10
.... 11. RESET BUTTON Used prior to resetting time. 16. 2nd F Button Used prior to using modes printed in blue at the signal receiver on the wired remote controller so as to Fahrenheit. ❈ The wireless remote controller do not operate the swirl mode. HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (OPTIONAL) Used to...
.... 11. RESET BUTTON Used prior to resetting time. 16. 2nd F Button Used prior to using modes printed in blue at the signal receiver on the wired remote controller so as to Fahrenheit. ❈ The wireless remote controller do not operate the swirl mode. HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (OPTIONAL) Used to...
Owners Manual
Page 22
... ON, clean the filter. 3 After cleaning the filter, press the Timer button and button of the remote control closed. Operation will respond with door of wired remote controller at the same time for 3 sec. Press the tact switch (Forced operation) for Filter sign LED 1 Filter sign lamp (LED) is ON. 2 If...
... ON, clean the filter. 3 After cleaning the filter, press the Timer button and button of the remote control closed. Operation will respond with door of wired remote controller at the same time for 3 sec. Press the tact switch (Forced operation) for Filter sign LED 1 Filter sign lamp (LED) is ON. 2 If...
Owners Manual
Page 25
... once every two weeks. Clean at the following settings for 2 to be used again. 1 Clean the air filter and install it .) 2 Check that the ground wire is not good for a long time. Ventilate the room occasionally. When it is in the room. It may cause a fire. Dirt may collect and may...
... once every two weeks. Clean at the following settings for 2 to be used again. 1 Clean the air filter and install it .) 2 Check that the ground wire is not good for a long time. Ventilate the room occasionally. When it is in the room. It may cause a fire. Dirt may collect and may...
Service Manual
Page 2
Dimensional Drawings 16 8. Refrigerant Cycle Diagrams 21 10. Trouble Shooting Guide 32 12. (3-Way)Valve ...48 13. Feature & Benefits ...8 4. Wiring Diagrams...19 9. List of Remote Control 12 6. Function of Functions ...11 5. Electronic Control Device 52 14. Specifications ...14 7. Installation ...22 11. Safety Precautions ...4 3. TABLE OF CONTENTS Table of contents Page 1. Models List ...3 2. Exploded View and Replacement Parts List 53 2 Ceiling Cassette Air Conditioner
Dimensional Drawings 16 8. Refrigerant Cycle Diagrams 21 10. Trouble Shooting Guide 32 12. (3-Way)Valve ...48 13. Feature & Benefits ...8 4. Wiring Diagrams...19 9. List of Remote Control 12 6. Function of Functions ...11 5. Electronic Control Device 52 14. Specifications ...14 7. Installation ...22 11. Safety Precautions ...4 3. TABLE OF CONTENTS Table of contents Page 1. Models List ...3 2. Exploded View and Replacement Parts List 53 2 Ceiling Cassette Air Conditioner
Service Manual
Page 4
... instruction will cause harm or damage. Use this manual are as shown below. Always ground the product. Always install a dedicated circuit and breaker. • Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse. • There is risk of fire or electric shock. Safety...
... instruction will cause harm or damage. Use this manual are as shown below. Always ground the product. Always install a dedicated circuit and breaker. • Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse. • There is risk of fire or electric shock. Safety...
Service Manual
Page 8
... air is done. The unit will follow same setting of temperature & other sub functions, access the respective LCD wired remote controller of 8 controllers. Dust particles Pre-filter Ionizer Dust electrode discharge Dusts Collection Polluted Air +6.5KV ++ discharge...Odor molecule electrode(-) (3.25KV discharge) 1 2 ........ 16 ........ Controller # 1 Controller # 2 Controller # 8 8 Ceiling Cassette Air Conditioner LG Ceiling Cassette Air Conditioners uses environment friendly refrigerant, which don't do any harm to the room till the indoor temperature reaches 18°C(64&#...
... air is done. The unit will follow same setting of temperature & other sub functions, access the respective LCD wired remote controller of 8 controllers. Dust particles Pre-filter Ionizer Dust electrode discharge Dusts Collection Polluted Air +6.5KV ++ discharge...Odor molecule electrode(-) (3.25KV discharge) 1 2 ........ 16 ........ Controller # 1 Controller # 2 Controller # 8 8 Ceiling Cassette Air Conditioner LG Ceiling Cassette Air Conditioners uses environment friendly refrigerant, which don't do any harm to the room till the indoor temperature reaches 18°C(64&#...
Service Manual
Page 9
...is in the Indoor unit & the other louvers. Two thermistor control provides option to the power failure. One thermistor is in the LCD wired remote. Features & Benefits Swirl Swing - Air Flow can be controlled easily regarding any of the two temperatures. It is electricity failure ... 1 Vane 2 Vane 4 Vane 3 Space Control Vanes angle can be controlled by wired remote control. - There may be a significant difference between the temperature taken at the back of the LCD wired remote controller, selection of the slide switch at the installed product and indoor temperature. ...
...is in the Indoor unit & the other louvers. Two thermistor control provides option to the power failure. One thermistor is in the LCD wired remote. Features & Benefits Swirl Swing - Air Flow can be controlled easily regarding any of the two temperatures. It is electricity failure ... 1 Vane 2 Vane 4 Vane 3 Space Control Vanes angle can be controlled by wired remote control. - There may be a significant difference between the temperature taken at the back of the LCD wired remote controller, selection of the slide switch at the installed product and indoor temperature. ...
Service Manual
Page 10
...CL on the LCD for 3 seconds and all the keys will be displayed on key cover of the installation is also printed on the LCD wired remote controller & diagnosis can adjust high rpm of indoor fan motor. Features & Benefits High Ceiling Operation - Selection of the compressor by pressing ... by three minutes thereby preventing damage to the compressor. In some of the unit. On the other hand if the height of the LCD wired remote controller. 5~6W Others 30m 0.5W 30LmG CHILD LOCK -Display 10 Ceiling Cassette Air Conditioner Child Lock Function: -It prevents the children ...
...CL on the LCD for 3 seconds and all the keys will be displayed on key cover of the installation is also printed on the LCD wired remote controller & diagnosis can adjust high rpm of indoor fan motor. Features & Benefits High Ceiling Operation - Selection of the compressor by pressing ... by three minutes thereby preventing damage to the compressor. In some of the unit. On the other hand if the height of the LCD wired remote controller. 5~6W Others 30m 0.5W 30LmG CHILD LOCK -Display 10 Ceiling Cassette Air Conditioner Child Lock Function: -It prevents the children ...
Service Manual
Page 11
... intelligence) Auto restart operation Child lock Forced operation Group control Sleep mode Timer (On/Off) Timer (weekly) Two thermistor control Standard wired remote controller Deluxe wired remote controller Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote controller General central control(Non LGAP) Dry contact Simple...
... intelligence) Auto restart operation Child lock Forced operation Group control Sleep mode Timer (On/Off) Timer (weekly) Two thermistor control Standard wired remote controller Deluxe wired remote controller Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote controller General central control(Non LGAP) Dry contact Simple...
Service Manual
Page 13
Wired LCD Remote Control Function of the day and change the time in the weekly timer Function. 16 Set and Clear Button Used to set and ...
Wired LCD Remote Control Function of the day and change the time in the weekly timer Function. 16 Set and Clear Button Used to set and ...
Service Manual
Page 19
Wiring Diagrams 1. Indoor Unit LCN240CP/LC240CPI/LCN340CP/LC340CPI Wiring Diagrams Connector Number CN-POWER CN-MOTOR CN-DPUMP CN-DISP CN-FLOAT CN-REMO CN-CC CN-ROOM CN-PIPE1 CN-PIPE2 CN-GRILL CN-PTC CN-HVB Location AC power supply BLDC fan motor output Drain pump output Display Float switch input Remote control Dry-contact Room sensor In-pipe thermistor Out-pipe thermistor Elevation grille PTC Heater HVB Ass'y (Air cleaner) Service Manual 19
Wiring Diagrams 1. Indoor Unit LCN240CP/LC240CPI/LCN340CP/LC340CPI Wiring Diagrams Connector Number CN-POWER CN-MOTOR CN-DPUMP CN-DISP CN-FLOAT CN-REMO CN-CC CN-ROOM CN-PIPE1 CN-PIPE2 CN-GRILL CN-PTC CN-HVB Location AC power supply BLDC fan motor output Drain pump output Display Float switch input Remote control Dry-contact Room sensor In-pipe thermistor Out-pipe thermistor Elevation grille PTC Heater HVB Ass'y (Air cleaner) Service Manual 19
Service Manual
Page 23
... and bolt to prevent unit falling. • Drill the piping hole on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake. • In the case when the vibration of the paper model • The following parts is conveyed to...
... and bolt to prevent unit falling. • Drill the piping hole on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake. • In the case when the vibration of the paper model • The following parts is conveyed to...
Service Manual
Page 24
...)(24k/34k) 20mm(0.8inch) 20mm(0.8inch) If the supply cord is capable of its service agent. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION. 24k/34k Btu/h (1Ø) • Cooling & Heating type Terminals on the indoor unit 1(L) 2(N) ...connected to the outdoor unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA). All wiring must be loose due to the unit via a distribution switch board designed for loose connection. (Running the air conditioner with LOCAL ...
...)(24k/34k) 20mm(0.8inch) 20mm(0.8inch) If the supply cord is capable of its service agent. Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION. 24k/34k Btu/h (1Ø) • Cooling & Heating type Terminals on the indoor unit 1(L) 2(N) ...connected to the outdoor unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA). All wiring must be loose due to the unit via a distribution switch board designed for loose connection. (Running the air conditioner with LOCAL ...
Service Manual
Page 25
...) Temporally fitting at 2 places (Tightening about 10mm(0.39inch)) ILnoluevterGmroiltloer Decoration panel Key holes Decoration panel fixing screws (Hexagon M5 screw) Control box cover Display Lead wire for the air inlet grille cord.) 3. Water drops fall. Remove the air inlet grille from the decoration panel. (Remove the hook for louver motor and...
...) Temporally fitting at 2 places (Tightening about 10mm(0.39inch)) ILnoluevterGmroiltloer Decoration panel Key holes Decoration panel fixing screws (Hexagon M5 screw) Control box cover Display Lead wire for the air inlet grille cord.) 3. Water drops fall. Remove the air inlet grille from the decoration panel. (Remove the hook for louver motor and...
Service Manual
Page 27
... the flexible drain hose and check the piping for leakage. • Be sure to check the drain pump for normal operating and noise when electrical wiring is complete. • When the test is 32mm(1.26inch). The curved or screwed hose may cause a leakage of the Indoor Unit. 2. Form the pipings gathered...
... the flexible drain hose and check the piping for leakage. • Be sure to check the drain pump for normal operating and noise when electrical wiring is complete. • When the test is 32mm(1.26inch). The curved or screwed hose may cause a leakage of the Indoor Unit. 2. Form the pipings gathered...
Service Manual
Page 28
... for 3 seconds at least 90% of air adequate? ❏ Is the remote controller switch operated? ❏ Is the draining smooth? ❏ Is there any faulty wiring? ❏ Is the heat insulation complete ❏ Are not terminal screws loosened? (refrigerant and drain piping)? ❏ Is there any button. CHECK THE FOLLOWING ITEMS...
... for 3 seconds at least 90% of air adequate? ❏ Is the remote controller switch operated? ❏ Is the draining smooth? ❏ Is there any faulty wiring? ❏ Is the heat insulation complete ❏ Are not terminal screws loosened? (refrigerant and drain piping)? ❏ Is there any button. CHECK THE FOLLOWING ITEMS...
Service Manual
Page 29
... an individual power specialized for the air conditioner. Ensure the difference between power source and the unit. 3) The screw which fasten the wiring in the power sources specification. (Particularly note the relation between cable length and thickness.) 8) Never fail to equip a leakage breaker where... one is maintained at more than 8°C(14.4°F). Installation Thermometer CAUTION After the confirmation of the above conditions, prepare the wiring as specified in the casing of transportation. Service Manual 29 As for fifteen minutes or more than 90 percent of the rated...
... an individual power specialized for the air conditioner. Ensure the difference between power source and the unit. 3) The screw which fasten the wiring in the power sources specification. (Particularly note the relation between cable length and thickness.) 8) Never fail to equip a leakage breaker where... one is maintained at more than 8°C(14.4°F). Installation Thermometer CAUTION After the confirmation of the above conditions, prepare the wiring as specified in the casing of transportation. Service Manual 29 As for fifteen minutes or more than 90 percent of the rated...
Service Manual
Page 30
...remote-controller sensor. (3) Move the slide switch to set position. Installation 9. sensor) to the position of wired remote-controller. • Position 2: The room temperature is controlled by a wired remote controller, install controller(room temp. Slide switch for 2 Thermistor 1 2 3 1 1 2 3 2... 3 (4) Close the rear cover and check if it works normally. Optional Operation 1) Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room themperature is controlled by...
...remote-controller sensor. (3) Move the slide switch to set position. Installation 9. sensor) to the position of wired remote-controller. • Position 2: The room temperature is controlled by a wired remote controller, install controller(room temp. Slide switch for 2 Thermistor 1 2 3 1 1 2 3 2... 3 (4) Close the rear cover and check if it works normally. Optional Operation 1) Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room themperature is controlled by...
Service Manual
Page 31
... switch High Ceiling Standard Low Ceiling Change of air volume Increasing Decreasing Remark Maunfactured in the table after measuring the height of the wired remote-controller. 3. Connecting Cable(Local Supply) AUTO SWING OPERATION SET TEMP Room Temp FAN SPEED SUB FUNCTION HI AUTO Heater Preheat ...Time ZONE 1234 Timer Operation unit Program set position. 4. CAUTION • Be careful not to exchange the color of wires. • The maximum length of connecting wire should be below 200m(656ft)(25Ω) on connecting each Unit starts sequentially to the set On Off Set no....
... switch High Ceiling Standard Low Ceiling Change of air volume Increasing Decreasing Remark Maunfactured in the table after measuring the height of the wired remote-controller. 3. Connecting Cable(Local Supply) AUTO SWING OPERATION SET TEMP Room Temp FAN SPEED SUB FUNCTION HI AUTO Heater Preheat ...Time ZONE 1234 Timer Operation unit Program set position. 4. CAUTION • Be careful not to exchange the color of wires. • The maximum length of connecting wire should be below 200m(656ft)(25Ω) on connecting each Unit starts sequentially to the set On Off Set no....
