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INSTALLATION MANUAL
AIR CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
TYPE : SINGLE PACKAGE
P/NO : MFL66101601
www.lg.com
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Table of Contents
Related Manuals for LG LK-C240BC02
Summary of Contents for LG LK-C240BC02
- Page 1 • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. TYPE : SINGLE PACKAGE www.lg.com P/NO : MFL66101601...
- Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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Page 3: Important Safety Instructions
SAFETY PRECAUTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING... - Page 4 SAFETY PRECAUTIONS • Be sure the installation area does not deteriorate with age. - If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury. • Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases.
- Page 5 SAFETY PRECAUTIONS • Take care to ensure that nobody could step on or fall onto the unit. - This could result in personal injury and product damage. CAUTION Installation • Always check for gas (refrigerant) pressure after installation or repair of product. - Low refrigerant levels may cause failure of product.
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Page 6: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING ENERGY IMPORTANT SAFETY INSTRUCTIONS INTRODUCTION Features DIMENSIONAL DATA INSTALLATION OF UNIT Inspection Location and Recommendations Ductwork Change Airflow Refrigerant piping on three principles Nitrogen substitution method Condensate Drain Piping Filter Installationv Installation of Remote Controller Electronic Wiring Connect the cable to the Product... -
Page 7: Introduction
INTRODUCTION INTRODUCTION Features Front View Return Control access panel Supply Rear View Air outlet vents Refresh air hood Air intake vents... -
Page 8: Dimensional Data
DIMENSIONAL DATA DIMENSIONAL DATA Single packaged cooling unit are designed for outdoor mounting with vertical condenser dis- charge. They can be located either at ground level or on roof. Each unit contains an operating charge of Re- frigerant 22 as shipped. Unit Dimensions(Figure 1A) [Unit : Inch(mm)] UNITS... - Page 9 DIMENSIONAL DATA UNIT Dimensions (Figure 1D) CLEARANCE 34" CLEARANCE 16" [Unit : Inch(mm)] UNITS 8.5/10/12.5RT 15/17.5RT 20/25RT (1227) 49 (1244) 49 (1250) (1392) 60 (1540) (2200) (2170) 87 (2230) 114 (2898) (180) (180) (180) CLEARANCE 46" (1025) 44 (1124) 48 (1230) CLEARANCE 34"...
- Page 10 DIMENSIONAL DATA UNIT Dimensions (Figure 1G) Horizontal FLOW APPLICATION (Figure 1H) [Unit : Inch(mm)] [Unit : Inch(mm)] UNITS 30RT UNITS 30RT (1720) (1255) (2200) (192) (2688) (561) (1087) (111) (680) (885) (800) (19) (920) (80) (115) (1967) CLEARANCE 34" CLEARANCE 16" SUPPLY RETURN CLEARANCE 34"...
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Page 11: Installation Of Unit
INSTALLATION OF UNIT INSTALLATION OF UNIT Inspection Lifting Beam Recommended Check for damage after unit is unloaded. Rigging Method Report promptly, to the carrier, any dam- age found to unit. Do not drop unit. Spreader Bar Check the unit nameplate to determine if the unit voltage is correct for the applica- tion. -
Page 12: Ductwork
INSTALLATION OF UNIT Ductwork Ductwork construction guidelines Connections to the unit should be made with 3"(76 mm) canvas connectors to minimize noise and vibration transmission. Elbows with turning vanes or splitters are rec- ommended to minimize air noise and resist- ance. -
Page 13: Refrigerant Piping On Three Principles
- Pipe must be able to obtain the specified thickness and should be used with low impurities. - Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness... -
Page 14: Nitrogen Substitution Method
Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor. -
Page 15: Condensate Drain Piping
INSTALLATION OF UNIT Condensate Drain Piping Installation of Remote Con- troller A 1 inch female condensate drain connection is located on the corner of the unit next to the Please insert wired remote controller con- motor access panel. A trap should be installed nection cable to the CN-REMO in indoor and filled with water before starting the unit to PCB, or connect directly local connection... - Page 16 INSTALLATION OF UNIT Please fix tightly using provided screw Please fix remote controller upper part into after placing remote controller setup board the setup board attached to the surface of on the place where you like to setup. the wall, as the picture below, and then, connect with setup board by pressing - Please set it up not to bend because poor lower part.
- Page 17 INSTALLATION OF UNIT Please connect indoor unit and remote controller using connection cable. Please check if connector is normally connected. Product side Connecting cable <Meaning of wire color> 12 V Signal Yellow Black Please use extension cable if the distance between wired remote controller and the product is more than 10m.
- Page 18 INSTALLATION OF UNIT Wired remote controller installation - Since the room temperature sensor is in the remote controller, the remote controller box should be installed in a place away from direct sunlight, high humidity and direct supply of cold air to maintain proper space temperature.
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Page 19: Electronic Wiring
INSTALLATION OF UNIT Electronic Wiring CAUTION Follow ordinance of your governmental organi- • Provide a circuit breaker between power zation for technical standard related to electri- source and the unit as shown below. cal equipment, wiring regulations and guidance of each electric power company. Over Current Protection WARNING •... -
Page 20: Connect The Cable To The Product
INSTALLATION OF UNIT Connect the cable to the High Voltage Field Wiring Diagram (Figure 6C) (For three phase electricity product) Product Remove the cover control from the unit by 3 Ø 3WIRE loosening the screw. 220 V, 60 Hz / 460 V 60 Hz POWER SUPPLY Connect the wires to the terminals on the control board individually as the following. - Page 21 INSTALLATION OF UNIT 8. The following would be caused by For more than 3 conductors in a raceway or cable, see the N.E.C. for de-rating the ampac- voltage drop. ity of each conductor. - Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal GROUNDING:...
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Page 22: Start-Up Pre-Start Quick Check List
INSTALLATION OF UNIT Start-Up Pre-Start Quick Check List - Is unit level and located with proper clearances? See Figure 1. - Is the duct work correctly sized, run, taped, insulated and weather See duct work proofed with proper unit arrangement? installation - Is condensate line properly sized, run trapped and pitched? - Is the filter of the correct size, clean and in place? -
Page 23: Dip Switch Setting In Indoor Main Pcb
INSTALLATION OF UNIT Dip Switch Setting in Indoor Main PCB Function Description Setting "Off" Setting "On" Default Group Control Selection of Master or Slave Master Slave Return Air Sensor Installed Sensor or Not Not installed Installed Selection of 2 Cycle control Separate Simultaneous 2-cycle model control... -
Page 24: Evaporator Fan Adjustment
INSTALLATION OF UNIT Evaporator Fan Adjustment Use the following procedure to determine the proper adjustment of the evaporator fan for a spe- cific application. Determine total system external static pressure (In mm water column) with accessories in- stalled. to accomplish this: 1) Obtain the design airflow rate and the design external static pressure drop through the dis- tribution system. -
Page 25: Trial Run Mode
INSTALLATION OF UNIT To Increase Belt Tension Loosen adjustment nut(4places). Pull motor back until belt is tight. Tighten adjustment bolt after belt has cor- rect tension. FORCE(F) HEIGHT(S) REMARK 4~4.9(kgf) 20~30 mm Trial Run Mode After installing the product, you must run a Test Run mode. For details related to this operation, refer to the product manual. -
Page 26: Self-Diagnosis Function
INSTALLATION OF UNIT Self-Diagnosis Function Error Indicator - This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. - Error mark is displayed on wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table. -
Page 27: Starting The Unit
INSTALLATION OF UNIT Starting the Unit Voltage With the compressor operating, check the line Heating Mode voltage at the unit. The voltage should be within the range shown on the unit name- (If unit is equipped with electric heater.) plate. If low voltage is encountered, check the Check to ensure all grilles and registers are size and length of the supply line from the open and all unit access doors are closed be-... -
Page 28: Final Installation Checklist And Maintenance
INSTALLATION OF UNIT Final Installation Checklist and Maintenance - Is the condenser fan and indoor blower operating correctly, with proper rotation and without undue noise? - Have voltage and running currents been checked to determine if it is within limits? - Have the air discharge grilles been adjusted to balance the system? - Has the ductwork been checked for air leaks and condensation? - Has the indoor airflow been checked and adjusted if necessary? - Page 29 INSTALLATION OF UNIT Maintenance Performed by Serviceman-Cooling Season To keep your unit operating safely and efficiently, the manufacturer recommends that a qualified serviceman check the entire system at least once each year, or more frequently if conditions warrant. Your serviceman may examine these areas of your unit: ‘...
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Page 30: Installation Guide At The Seaside
Install the outdoor unit on - If you can’t meet above guide line in the the opposite side of the sea wind direction. seaside installation, please contact LG Electronics for the additional anticorro- sion. - Periodic ( more than once/year ) cleaning...