Table of Contents
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LG Concealed Duct
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.
• Please retain this installation manual for future reference
after reading it thoroughly.
LG
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Table of Contents
Related Manuals for LG LB-H306GSS0
Summary of Contents for LG LB-H306GSS0
- Page 1 LG Concealed Duct 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
Ceiling Duct Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions....3 Introduction ......8 Installation of Indoor, • Four Type “A” screws • Level Outdoor Unit ......9 • 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 Be cautious when unpacking and For installation, always contact the dealer or an Authorized power cable. installing the product. Service Center. • Sharp edges could cause injury. Be • There is risk of fire or electric shock. especially careful of the case edges •...
- Page 5 Safety Precautions Do not allow water to run into Do not use the product in a tightly When flammable gas leaks, turn off the electric parts. closed space for a long time. gas and open a window for ventilation before turn the product on. •...
- Page 6 Safety Precautions CAUTION I Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage. Keep level even when installing the product.
- Page 7 Safety Precautions Do not step on or put anyting on the product. Do not insert hands or other objects through the (outdoor units) air inlet or outlet while the product is operated. • There is risk of personal injury and failure of •...
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Page 8: 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 9: 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 10 Installation of Indoor, Outdoor Unit Piping length and the elevation Pipe Size Length A(m) Elevation B(m) *Additional Capacity (Diameter:Ø) refrigerant(g/m) Liquid Standard Max. Standard Max. 30 kBtu/h 15.88 mm(5/8") 6.35 mm(1/4") 36 kBtu/h(1Ø) 15.88 mm(5/8") 6.35 mm(1/4") 36 kBtu/h(3Ø) 15.88 mm(5/8") 6.35 mm(1/4") 42 kBtu/h 19.05 mm(3/4") 9.52 mm(3/8") 48 kBtu/h...
- Page 11 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 Capacity...
- Page 12 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 13 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 14 Installation of Indoor, Outdoor Unit • Drill the piping hole with 70 mm dia, hole core WALL Indoor Outdoor drill. • Piping hole should be slightly slant to the outdoor side. 5~7 mm INSULATION, OTHERS Insulate the joint and tubes completely. THERMAL INSULATION All thermal insulation must comply with local requirement.
- Page 15 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 16 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 17 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. Flared connection (Union) • Make a bend with a radius as large as possible.
- Page 18 Installation of Indoor, Outdoor Unit Perform the electrical wiring work according to the ELECTRICAL WIRING electrical wiring connection. • All wiring must comply with local requirements. Circuit Breaker • Select a power source that is capable of Main power source supplying the current required by the air Switch box conditioner.
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Page 19: 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 20 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 21: 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 22: 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 23 Connecting Cables between Indoor Unit and Outdoor Unit CAUTION The power cord connected to the outdoor unit should be The connecting cable connected to the indoor and outdoor complied with the following specifications (Rubber unit should be complied with the following specifications insulation, type H05RN-F approved by HAR or SAA).
- Page 24 Connecting Cables between Indoor Unit and Outdoor Unit Clamping of cables • Arrange 2 power cables on the control panel. • First, fasten the steel clamp with a screw to the inner boss of control panel. • For the cooling model, fix the other side of the clamp with a screw strongly. For the heat pump model, put the 0.75 mm cable(thinner cable) on the clamp and tighten it with a plastic clamp to the other boss of the control panel.
- Page 25 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 Drain hose hose, the end of the drain-outlet should keep...
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Page 26: Air Purging And Evacuation
Air Purging and Evacuation Air Purging and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5. - Page 27 Air Purging and Evacuation Soap water method Liquid side 1. Remove the caps from the 2-way and 3-way valves. 2. Remove the service-port cap from the 3-way valve. 3. To open the 2-way valve turn the valve stem Gas side counterclockwise approximately 90°, wait for about 2-Way/3-Way 2~3 sec, and close it.
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Page 28: 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 29: 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 30: 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 6mmAq for Model Name "LB-C306GSS0" • 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 31: External Static Pressure & Air Flow
External Static Pressure & air Flow External Static Pressure & air Flow [Table 1] Static Pressure(mmAq) Model Name Step(Hi/Med/Lo) Setting Value 26.5 LB-H306GSS0 LB-C306GSS0 LB-C366GSS0 LB-H366GSS0 LB-C368GSS0 LB-H368GSS0 LB-C428GSS0 26.5 LB-H428GSS0 LB-H488RSS0 LB-C488RSS0 LB-H608RSS0 LB-C608RSS0 1. Be sure to set the value refering table 1.Unexpected set value will cause mal- NOTICE function. -
Page 32: Checking The Power Cord
Checking the power cord Checking the Power Cord 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 33: Installation Guide At The Seaside
3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water... - Page 34 Memo 34 Concealed Duct Air Conditioner...
- Page 35 P/No.: 3828A20573L...