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Ceiling Cassette Type
Single-Zone
Air Conditioning
DMC24CA-1
DMC36CA-1
Before servicing the unit, read the
“safety precautions” in this manual.
Only for authorized service personnel.
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TABLE OF CONTENTS Table of contents Page 1. Safety Precautions ...........................................................................................................3 2. Feature & Benefits ...........................................................................................................7 3. List of Functions.............................................................................................................10 4. Function of Remote Control ...................................
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Safety Presautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. Meanings of symbols used in this manual are as shown below. Be sure
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Safety Presautions Do not install, remove, or re- Be cautious when unpacking For installation, always con- install the unit by yourself and installing the product. tact the dealer or an (customer). Authorized Service Center. • There is risk of fire, electric shock, • Sharp edges could cause injury. • There is risk of fire, electric shock, explosion, or injury. Be especially careful of the case explosion, or injury. edges and the fins on the con- denser and evaporator. Do not install the product
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Safety Presautions Do not store or use flammable gas or com- If strange sounds, or small or smoke comes bustibles near the product. from product. Turn the breaker off or discon- nect the power supply cable. • There is risk of fire or failure of product. • There is risk of electric shock or fire. Do not open the inlet grill of the product during Be cautious that water could not enter the operation. (Do not touch the electrostatic filter, product. if the unit is so equipped.) • There is risk of ph
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Safety Presautions Keep level even when installing the product. Use two or more people to lift and transport the product. • To avoid vibration or water leakage. • Avoid personal injury. 90˚ Operational Use a soft cloth to clean. Do not use harsh Do not touch the metal parts of the product detergents, solvents, etc. when removing the air filter. They are very sharp! • There is risk of fire, electric shock, or damage to the • There is risk of personal injury. plastic parts of the product. Do no
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Features & Benefits Features & Benefits Environment Friendly Refrigerant : - LG Ceiling Cassette Air Conditioners uses environ- ment friendly refrigerant, which don't do any harm to the environment. Dust electrode Dust particles discharge Pre-filter Ionizer Dusts Collection + +6.5KV + discharge Purified Polluted + fresh Air Air Plasma Air Purifier : + + - It removes not only microscopic contaminants & Generating Odour dusts aluminum coated plasma dust, but also house mites, pollen, and pet fu
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Features & Benefits Swirl Swing 4- Open(Conventional) Swirl Swing(New) Comparison of Floor - It is the function for comfort cooling/heating operation. Temp. Distribution(20°C) - The diagonal two louvers are opened the more larger than the other louvers. After one minute, it is opposite. 2.4% 100% Improved 4.8% Comparison of Air Flow Types 4- Open(Conventional) Swirl Swing(New) Vane 2 Vane 1 Open Vane 1 Close Open Close Open Close Vane 2 Open Vane 2 Open Close Open Close Open Vane 3 Open Vane 3
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Features & Benefits High Ceiling Operation - According to the height of ceiling installation, it pro- vides variability of indoor fan motor rpm. If the height of installation is low then you can adjust low rpm of indoor fan motor. On the other hand if the height of the installation is high you can adjust high rpm of indoor fan motor. Selection of speed can be done by slide switch at the back of the LCD wired remote. ex: Selection Height RPM Lower 2.4m(7.9ft) 700/600/500 Standard 2.7m(8.9ft) 750/
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List of Functions List of Functions • Ceiling Cassette Category Function DMC24CA-1 DMC36CA-1 Air supply outlet 44 Airflow direction control (left & right) XX Airflow direction control (up & down) Auto Auto Auto swing (left & right) XX Auto swing (up & down) OO Air flow Airflow steps(Fan / Cool / Heat) 3/4/- 3/4/- CHAOS swing XX CHAOS wind (Auto wind) XX Jet cool (Power wind) OO Swirl wind OO Deodorizing filter XX Air purifying Plasma air purifier OO Prefilter(Washable) OO Drain pump OO E.S.P. co
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Function of Remote Control Function of Remote Control 1. Wireless LCD Remote Control 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. Signal transmitter 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. 3. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature. 4. INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low, medium and high. 5. JET COOL Used to start or stop the speed cooling.(
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Function of Remote Control 2. Wired LCD Remote Control AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp HI AUTO Heater Preheat 1 MED JET Defrost Humidify LO SLo Filter Out door 2ndF Time ZONE 1234 Timer Operation unit No Func Program set On Off Set no. Time 01 03 05 07 09 11 13 15 17 19 21 23 3 17 2 10 5 Timer Cancel 2ndF 11 6 12 Program Week Holiday 4 13 Plasma 14 Set/Clr 7 15 Hour Min 8 RESET 16 9 18 1 Operation display 9 Plasma Air Clean Button Displays the operation conditions.
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Specifications Specifications Indoor unit type Ceilling Cassette - 4way Model DMC24CA-1 DMC36CA-1 Power supply Phase/Volts/Hz 1 / 208-230 / 60 1 / 208-230 / 60 Cooling capacity kW 7.03 9.96 Btu/h 24,000 34,000 Heating capacity kW -- Btu/h -- Current Nominal running current A 1.0 1.0 Fan Motor Type BLDC BLDC Fan Type Turbo Fan Turbo Fan Motor Output(W) * number of units 50.6 * 1 50.6 * 1 Air flow rate (H/M/L) cmm 18.4/17.0/15.6 24.1/22.7/21.2 cfm 650/600/550 850/800/750 Capacitor mF/V -- Drive DC
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Specifications Outdoor Unit DMC24CA-1 DMC36CA-1 Rated Capacity Cooling kW 7.03 9.96 24,000 34,000 Btu/h -- Heating kW Btu/h -- Rated Input Cooling kW 2.5 3.6 Heating kW -- -- Energy Label -- Testing combination Running current Cooling A 11.5 17 Heating A -- Starting current (Cooling/Heating) A 24 38 1 / 208-230 / 60 2 / 208-230 / 60 Power supply Phase / Volts / Hz 2 3 * 2.1(14) 3 * 3.3(12) Power supply Cable(outdoor) No. * mm (No. AWG) 2 Power and transmission cable No. * mm (No. AWG) 4 * 2.1(14
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R35(1.4) Dimensional Drawings Dimensional Drawings 1. Indoor Units Model No.: DMC24CA-1 / DMC36CA-1 900(35.4) (ceiling opening) 840(33.1) 688(27.1) (hanging bolt) 225(8.9) 950(37.4) 950(37.4) 950(37.4) 840(33.1) 1 688(27.1) 3 2 6 840(33.1) 4 5 7 * mm(inch) No. Part Name Remark 1 Decoration panel 2 Air suction grille 3 Air discharge grille 4 Gas pipe connection 5 Liquid pipe connection 6 Drain pipe connection 7 Power supply connection Service Manual 15 30(1.18) 950(37.4) 950(37.4) 135(5.3
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Ø531(20.9) Dimensional Drawings 2. Outdoor Units Model No.: DMC24CA-1 870(34.3) 546(21.5) 160(6.3) 54.6(2.1) 333(13.1) 320(12.6) *mm(inch) 16 Ceiling Cassette Air Conditioner 808(31.8) 782.5(30.8) 320(12.6) 25.5(1.0) 392(15.4) 80(3.1) 50(2.0) 10(0.4) 340(13.4) 360(14.2)
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Dimensional Drawings Model No.: DMC36CA-1 900(35.4) 550(21.7) 175(6.9) 370(14.6) 4 1 65(2.6) 3 2 5 308(12.1) *mm(inch) No. Part Name Remark 1 Air discharge grille 2 Gas pipe connection 3 Liquid pipe connection 4 Power & transmission connection 5 Earth screw Service Manual 17 273(10.7) 565(22.2) 520(20.5) 15(0.6) 370(14.6) 124(4.9) 395(15.6) 80(3.1) 1135(44.7) 1165(45.9)
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Wiring Diagrams Wiring Diagrams 1. Indoor Unit DMC24CA-1 / DMC36CA-1 Connector Number Location CN-POWER AC power supply CN-MOTOR BLDC fan motor output CN-DPUMP Drain pump output CN-DISP Display CN-FLOAT Float switch input CN-REMO Remote control CN-CC Dry-contact CN-ROOM Room sensor CN-PIPE1 In-pipe thermistor CN-PIPE2 Out-pipe thermistor CN-GRILL Elevation grille CN-HVB HVB Ass'y (Air cleaner) 18 Ceiling Cassette Air Conditioner
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Wiring Diagrams 2. Outdoor Unit DMC24CA-1 Notes: BL BLUE BK BLACK BR BROWN RD RED OR ORANGE WH WHITE YL YELLOW GN/YL GREEN/YELLOW FIELD WIRING DMC36CA-1 Notes: BL BLUE BK BLACK BR BROWN RD RED OR ORANGE WH WHITE YL YELLOW GN/YL GREEN/YELLOW FIELD WIRING Service Manual 19
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Refrigerant Cycle Diagrams Refrigerant Cycle Diagrams 1. Cooling Only Models INDOOR UNIT OUTDOOR UNIT High pressure S/W Thermistor Thermistor Gas Side H/EX Check Check Valve Valve Thermistor (Air) Capillary Tube Accumulator Heat Exchanger GAS SIDE Thermistor E.E.V. LIQUID SIDE Pipe Size(Diameter:Ø) inch Piping length (ft.) Elevation (ft.) Additional Capacity Refrigerant Gas Liquid Rated Max. Rated Max. (oz/ft) 24k 0.22 1/4 1/2 100 16 50 25 34k 0.32 1/4 5/8 115 16 66 20 Ceiling Cassette Air Cond
