Table of Contents
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LG Ceiling Duct-Type
Air Conditioner
INSTALLATION MANUAL
MODELS: LB-C186HSA2
LB-C246HSA2
LB-C306GTA2
LB-C366GTA2/3
LB-C428GTA2
LB-C488RTA0
LB-C608RTA0
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.
• Please retain this installation manual for future reference
after reading it thoroughly.
LG
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Related Manuals for LG LB-C186HSA2
Summary of Contents for LG LB-C186HSA2
- Page 1 LG Ceiling Duct-Type Air Conditioner INSTALLATION MANUAL MODELS: LB-C186HSA2 LB-C246HSA2 LB-C306GTA2 LB-C366GTA2/3 LB-C428GTA2 LB-C488RTA0 LB-C608RTA0 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.
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Page 2: Table Of Contents
Ceiling Duct Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions....3 Introduction ......6 Installation of Indoor, • Four Type “A” screws • Level Outdoor Unit ......7 • Connecting cable • Screw driver • Electric drill •... -
Page 3: 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. - Page 4 Safety Precautions Do not modify or extend the power cable. Be cautious when unpacking and installing the product. • There is risk of fire or electric shock. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. For installation, always contact the dealer or an Do not install the product on a defective installation Authorized Service Center.
- Page 5 Safety Precautions CAUTION I Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is drained installation or repair of product. away properly. • Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage. Keep level even when installing the product.
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Page 6: Introduction
Installation Parts Provided Introduction Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Features Air filters Air outlet vents Air intake vents... -
Page 7: Installation Of Indoor, Outdoor Unit
Installation of Indoor, Outdoor Unit Installation of Indoor, Outdoor Unit Selection of the best location Indoor unit Install the air conditioner in the location that Inspection hole satisfies the following conditions. Top view (600X600) Control box (unit: mm) • The place shall easily bear a load exceeding four times the indoor unit’s weight. - Page 8 Installation of Indoor, Outdoor Unit Piping length and the elevation Pipe Size *Additional Length A(m) Elevation B(m) (Diameter: Ø) Capacity refrigerant (g/m) Liquid Standard Max. Standard Max. 18K BTU/h 5/8" 1/4" 24K BTU/h 5/8" 1/4" 30K BTU/h 5/8" 1/4" 36K BTU/h 5/8"...
- Page 9 Installation of Indoor, Outdoor Unit Indoor unit installation 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 10 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 Old building New building suspension bolts for locking the suspension bolts on the ceiling.
- Page 11 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 12 Installation of Indoor, Outdoor Unit • Drill the piping hole with 70mm dia, hole core WALL Indoor Outdoor 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 13 Installation of Indoor, Outdoor Unit Install the remote control box and INSTALLATION OF REMOTE CONTROL BOX 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 14 Installation of Indoor, Outdoor Unit WIERED 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 15 Installation of Indoor, Outdoor Unit Perform the work according to the Service Manual REFRIGERANT PIPING or Installation Guide. • Use two spanners when connecting the refrigerant pipe to the unit. • Make a bend with a radius as large as Flared connection (Union) possible.
- Page 16 Installation of Indoor, Outdoor Unit Perform the electrical wiring work according to the ELECTRICAL WIRING electrical wiring connection. • All wiring must comply with local Circuit Breaker requirements. Main power source • Select a power source that is capable of Switch box supplying the current required by the air conditioner.
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Page 17: 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 in the Copper Slanted Uneven Rough tube following procedure. 90° Cut the pipes and the cable. - Page 18 Connecting Pipes to the Indoor Unit 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 19: Pipes: Gas Side
Connecting Pipes to the Outdoor Unit Connecting Pipes to the Outdoor Unit Connecting the pipes to the Outdoor unit • Align the center of the pipings and sufficiently tighten the flare nut with fingers. • Finally, tighten the flare nut with torque wrench until the wrench clicks. -
Page 20: Connecting Cables Between Indoor Unit And Outdoor Unit
Connecting Cables between Indoor Unit and Outdoor Unit Connecting Cables between Indoor Unit and Outdoor Unit Connecting cables to the Indoor Unit I Connect the wires to the terminals on the control board individually according to the outdoor unit connection. •... - Page 21 Connecting Cables between Indoor Unit and Outdoor Unit Connecting the cable to the Outdoor Unit • Remove the Cover control from the unit by Outdoor unit loosening a screw. Terminal block Connect the wires to the terminals on the Cord Clamper control board individually as following.
- Page 22 Connecting Cables between Indoor Unit and Outdoor Unit Form the pipings • Wrap the connecting portion of indoor unit with Seal a small opening the Insulation material and secure it with two around the pipings with gum type sealer. Plastic Bands. (for the right pipings) - If you want to connect an additional drain hose, the end of the drain-outlet should keep Drain hose...
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Page 23: 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 24: 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 25: E.s.p.(External Static Pressure) Setting
E.S.P.(External Static Pressure) Setting E.S.P.(External Static Pressure) Setting Open the rear cover of the wired remote-controller to set the mode. 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 26: 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 10mmAq for Model Name "LB-C488RTA0" • 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 27: External Static Pressure & Air Flow
External Static Pressure & air Flow Static Pressure(mmAq) Model Name Step(Hi/Med/Lo) Setting Value 16.5 CMM LB-C186HSA2 14.5 CMM 13 CMM 18 CMM 1(16.5 CMM) LB-C246HSA2 16.5 CMM 100(15 CMM) 14 CMM 32 CMM LB-C306GTA2 29 CMM LB-C366GTA2 LB-C366GTA3 29 CMM LB-C428GTA2 26.5 CMM... -
Page 28: Checking The Power Cord
Checking the Power Cord (For 42/48/60 Model) Checking the Power Cord (For 42/48/60k Model) If the main cable for power supply is connected incorrect or wrong, it shall cause strange noise from the compressor and cooling operation does not work. Troubles and Solutions Troubles Solutions... - Page 29 Memo Installation Manual 29...
- Page 30 Memo 30 Ceiling Duct Type Air Conditioner...
- Page 31 P/No.: 3828A20330X...