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LG
Air Conditioner
INSTALLATION MANUAL
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• Installation work must be performed in accordance with
the national wiring standards by authorized personnel
only.
LG
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Related Manuals for LG L2-C366BA0
Summary of Contents for LG L2-C366BA0
- Page 1 website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html Air Conditioner INSTALLATION MANUAL IMPORTANT • Please read this installation manual completely before installing the product. • When the power cord is damaged, replacement work shall be performed by authorized personnel only. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only.
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Page 2: Table Of Contents
Multi Type Ceiling Duct Air Conditioner Installation Manual TABLE OF CONTENTS Installation Requirements Required Tools Installation Parts Provided .........3 Safety Precautions ............4 ❏ Level gauge ❏ Screw driver Installation of indoor, outdoor unit......7 ❏ Electric drill ❏ Hole core drill (ø50mm) ❏... -
Page 3: Installation Parts Provided
Installation Parts Provided Installation Parts Provided Standard Type Indoor Unit Air filters Air outlet vents (Optional) Air intake vents Remote Controller Outdoor Unit Air outlet vents (Rear) (Side) Air intake vents Control cover Connecting wire Piping Drain hose Installation Manual 3... -
Page 4: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. - Page 5 Safety Precautions Always intstall a dedicated circuit and Use the rated breaker or fuse correctly. breaker. • Improper wiring or installation may cause fire • There is risk of fire or electric shock. or electric shock. Do not modify or extend the power cable. Be cautious when unpacking and installing the product.
- Page 6 Safety Precautions CAUTION Always check for gas (refrigerant) leakage Install the drain hose to ensure that water is after installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of • A bad connection may cause water leakage. product.
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Page 7: Installation Of Indoor, Outdoor Unit
Elevation Length refrigerant Model B (m) A (m) (g/m) Liquid L2-C366BA0 L2-C486BA0 • Capacity is based on standard length and maximun allowance length is on the basis of Outdoor unit reliability. • Improper refrigerant charge may result in abnormal cycle. - Page 8 Installation of Indoor, Outdoor Unit Indoor unit installation I Installation of Unit Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension F (G) H...
- Page 9 Installation of Indoor, Outdoor Unit • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. • Insert the set anchor and washer onto the suspension bolts for locking the suspension bolts on the ceiling.
- Page 10 Installation of Indoor, Outdoor Unit CAUTION 1. Install declination of the indoor unit is very important for the drain of the duct type air conditioner. 2. Minimum thickness of the insulation for the connecting pipe shall be 5mm. Front of view •...
- Page 11 Installation of Indoor, Outdoor Unit • Drill the piping hole with 70mm dia, hole WALL Indoor Outdoor core drill. • Piping hole should be slightly slant to the outdoor side. 5~7mm INSULATION, OTHERS Insulate the joint and tubes completely. THERMAL INSULATION All thermal insulation must comply with local requirement.
- Page 12 Installation of Indoor, Outdoor Unit Install the remote control box INSTALLATION OF REMOTE CONTROL BOX and cord correctly. POINT OF REMOTE CONTROLLER INSTALLATION • Although the room temperature sensor is in the indoor unit, the remote control box should be installed in such places away from direct sunlight and high humidity. INSTALLATION OF THE REMOTE CONTROL BOX ROUTING OF THE REMOTE CONTROL CORD •...
- Page 13 Installation of Indoor, Outdoor 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.
- Page 14 • Perform air purge with R-22 or vacuum drying. • When piping work is finished, check all joints. Factory charged I Add refrigerant if piping is over 7.5m. Model Addition volume L2-C366BA0 30 g/m L2-C486BA0 40 g/m Flared connection Outdoor...
- Page 15 A disconnection Outdoor device to adequately disconnect all supply lines must be fitted. Indoor • Capacity of circuit breaker Model 1 Phase L2-C366BA0 Control terminal board L2-C486BA0 A view Control box WIRING CONNECTION Remote INDOOR UNIT...
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Page 16: Connecting Pipes To The Indoor Unit
Connecting Pipes to the Indoor Unit Connecting Pipes to the Indoor Unit Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work Copper in the following procedure. Slanted Uneven Rough tube 90° 1) Cut the pipes and the cable. - Page 17 Connecting Pipes to the Indoor Unit 6) Pipe bending Annealed copper pipe with small diameter (ø6.35 or ø9.52) can be easily bent manually. In this case, secure large R(radius) for the bend section and gradually bend pipe. If annealed copper pipe is large in diameter (ø15.88 or ø19.05), bend pipe with bender.
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Page 18: Connecting Pipes To The Outdoor Unit
Connecting Pipes to the Outdoor Unit Connecting Pipes to the Outdoor Unit 1) Connecting the pipes to the Outdoor unit 1. Align the center of the pipings and sufficiently tighten the flare nut with fingers. 2. Finally, tighten the flare nut with torque wrench until the wrench clicks. -
Page 19: Connection Of The Cable
Checking the Drainage and Forming the Piping 2) Form the pipings Seal a small opening 1. Wrap the connecting portion of indoor unit around the pipings with the Insulation material and secure it with gum type sealer. with two Plastic Bands. (for the right pipings) •... - Page 20 Checking the Drainage and Forming the Piping 2) Connection of the cable Outdoor Unit 1. Remove the cover control from the unit by loosening the screw. Main terminal Main terminal Main terminal Connect the wires to the terminals on the board board control board individually as the following.
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Page 21: Air Purging Of The Connecting Pipes And The Indoor Unit
Air Purging of the Connecting Pipes and the Indoor Unit Air Purging of the Connecting Pipes and the Indoor Unit The air which contains moisture remaining in the refrigeration cycle may cause a malfunction on the compressor. 1. Confirm that both the liquid side valve and the gas side valve are set to the closed position. 2. -
Page 22: Group Control
Group Control Group Control It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent. Main PCB Indoor Unit 1 Indoor Unit 2 Indoor Unit 16 Terminal(Local Supply) Terminal(Local Supply) Terminal(Local Supply) Block Block Block... -
Page 23: E.s.p.(External Static Pressure) Setting
E.S.P.(External Static Pressure) Setting E.S.P.(External Static Pressure) Setting (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. I Without Zone System 1. Position V-H, F-H: • This position sets the maximum E.S.P as a default set. 2. -
Page 24: How To Set E.s.p
How to Set E.S.P? How to Set E.S.P? Procedure of RPM change: Ex) External Static pressure is 4mmAq for Model Name "L2NC246BRA0" • To protect the unit, compressor is designed to be off during E.S.P. setting. Push the "On/Off" button. The unit will start. - Page 25 How to Set E.S.P? [Table. 1] Static Pressure(mmAq) Model Name Step(Hi/Med/Lo) Setting Value 16.5 CMM L2NC186BMA0 14.5 CMM 13 CMM 18 CMM 1(16.5 CMM) L2NC246BRA0 100(15 CMM) 16.5 CMM 14 CMM Note: 1. Be sure to set the value refering table 1. Unexpected set value will cause mal-function.
- Page 26 Memo 26 Multi Type Ceiling Duct Air Conditioner...
- Page 27 P/No.: 3828A20433A...