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LG Large Duct-Type
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 AB-H1208VA0
Summary of Contents for LG AB-H1208VA0
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Page 1: Liquid Side
LG Large Duct-Type 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. -
Page 2: Table Of Contents
Large Duct-Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions....3 Introduction ......6 Dimension Data ....7 Rigging ......8 • Level Installation of Indoor, • Connecting cable • Screw driver Outdoor Unit ......9 • Electric drill Selection of the best location......9 "... -
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.
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Page 5: Pipes: Gas Side
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. -
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 Indoor Unit Air Inlet Control cover... -
Page 7: Dimension Data
Installation Parts Provided Dimensional Data 1. Indoor Unit 1700 1600 1392.4 2. Outdoor Unit 1,250 1,280 Installation Manual 7... -
Page 8: Rigging
Installation Parts Provided Rigging 1. When rigging, use spreaders to prevent damage to the panels (see figs. 1 and 2). Avoid violent movements. 2. To prevent damage while in transit, do not remove the unit from the skid until it is at its final location. -
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 satisfies the following conditions. • The place shall easily bear a load exceeding Inspection hole four times the indoor unit’s weight. - Page 10 Installation of Indoor, Outdoor Unit Piping length and the elevation Pipe Size *Additional Length A(m) Elevation B(m) (Diameter: Ø) refrigerant Capacity (g/m) Gas(in) Liquid(in) Standard Max. Standard Max. 120K BTU/h(R410) 5/8" " 120K BTU/h(R22) 5/8" " Outdoor unit Outdoor unit Indoor unit Oil trap Outdoor unit...
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Page 11: Indoor Unit Installation
Installation of Indoor, Outdoor Unit Indoor Unit installation 1) STEP 1 : Make hole for set anchor • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. 2) STEP 2 : Fix anchor Old building New building •... - Page 12 Installation of Indoor, Outdoor Unit 3) STEP 3 : Hang the indoor - Install the unit above the ceiling correctly - Secure the unit and supporting plate (commercially available) at four places with M12 screw - Fit the supporting plate into the suspension bolt using washers, secure and tighten both the upper and lower nuts to the suspension bolt (refer to following fig.) - Adjust the unit to the desired height.
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Page 13: One Unit-2 Appliance
Installation of Indoor, Outdoor Unit One Unit-2 Appliance Horizontal Supply/Horizontal Return Vertical Supply/Horizontal Return NOTICE How to change Air Flow(Horizontal/Vertical) Step 1) Remove screws(9EA) the cover I Step 2) Remove cover I Step 3) Remove top cover Step 4) Remove duct flange. Installation Manual 13... - Page 14 Installation of Indoor, Outdoor Unit Step 5) Remove front panel. Step 6) Rotate blower housing assembly like following. Step 7) Re assemble front panel. Step 8) Assemble top cover. Step 9) Assemble cover I & Duct flange. Step 10) After change air flow direction. 14 Large Duct-Type Air Conditioner...
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Page 15: Drain Pipe Work
Installation of Indoor, Outdoor Unit Drain Pipe Work The drain pipe must be installed as shown in the fig. To avoided water damage caused by leaks and condensation. - Assemble the unit as shown in fig - The drain pan outlet can be installed on either the left or right side. The drain plug can be removed and placed on either the left and right side as well. - Page 16 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 •...
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Page 17: Checking The Drainage
Checking the Drainage Checking the Drainage Checking the Drainage • Remove the Filter as described below. • When you assemble the filter, follow in reverse order of separation. • Check the drainage. - Spray one or two glasses of water upon the evaporator. -
Page 18: Ductwork
Installation of Indoor, Outdoor Unit Ductwork - The ductwork dimensions should be determined in accordance with the air flow to be carried, and the available static pressure of the unit. The different air flows and power input values for each unit are shown in the fan performance tables. - Page 19 Installation of Indoor, Outdoor Unit How to connect pipe Bracket Insulation Step1. Remove Bracket(2EA) Step2. Remove Insulation Connect Pipe Step3. Remove Cap Step4. Connect Pipe(Local Supply) Step5. Wrap The Removed Insulation at Step6. • Assembly The Removed Bracket The First Place •...
- Page 20 Installation of Indoor, Outdoor 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. Use bender appropriate for the pipe diameter.
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Page 21: Connecting Of Piping-Outdoor
Installation of Indoor, Outdoor Unit Connecting of piping - Outdoor Pleasing weld connecting pipes using Elbows. WARNING CAUTION After completing work, securely tighten Wrap the valve by wet towel or gauze, both service ports and caps so that the internal parts of the valve are very gas not leak. -
Page 22: Connecting Cables Between Indoor Unit And Outdoor Unit
Power Supply 380-415V/50Hz One Power Supply Use Indoor Unit Terminal Block Outdoor Unit Terminal Block Power Supply 380-415V/50Hz MODEL INDOOR 5.25 AB-H1208VA0 OUTDOOR 36.4 INDOOR 5.25 LB-H1208VA0 OUTDOOR 35.1 *MCC: MINIMUM CONTINOUS CURRENT *MOP: MAXIMUM OVERCURRENT PROTECTOR *MCB: MAXIMUM CIRCUIT BREAKER... - Page 23 Connecting Cables between Indoor Unit and 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.
- Page 24 Connecting Cables between Indoor Unit and Outdoor Unit ELECTRICAL WIRING BETWEEN REMOTE CONTROLLER AND INDOOR CONTROL BOX TERMINAL 1. Prepare below parts as accessory: AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Filter Out door Time...
- Page 25 Connecting Cables between Indoor Unit and 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.
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Page 26: Control Wiring
Connecting Cables between Indoor Unit and Outdoor Unit Control Wiring Remote controller conductors are standard thermostat wire 22 to 14 ga. Recommended wire sizes and lengths for installing the remote controller are provided in the table on page 12. Resistance of 2 1/2 ohms per conductor can cause deviation in the accuracy of the control. -
Page 27: Forming The Piping
Connecting Cables between Indoor Unit and Outdoor Unit Forming the piping Form the piping by wrapping the connecting portion of the indoor Seal a small unit with insulation material and opening around secure it with two kinds of vinyl the pipings with Plastic gum type sealer. -
Page 28: 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 29: Checking Method
Air Purging of the Connecting Pipes and the Indoor Unit Checking method Preparation 1. Do a leakage test of all joints of the tubing(both indoor and outdoor) and both gas • Check that each tube(both liquid and gas side and liquid side service valves. tubes) between the indoor and outdoor units have Bubbles indicate a leak. -
Page 30: Two Thermistor System
Two Thermistor system Two Thermistor system • Open the rear cover of Remote Controller to set up the mode. • Selectable options are three as follows. Room Temp. Sensing Remo. Slide Switch1 Indoor Unit 2 TH(Remo.+Indoor) - Remo: Sensing the room Temperature. - Indoor Unit: Sensing the intake air into Single Slide Switch2... - Page 31 E.S.P.(External Static Pressure) Setting DETAIL INFORMATION OF SLIDE SWITCH Room Temperature Sensing select Switch 1. Use Remocon's sensor RESET switch RESET switch RESET switch 2. Use Indoor's sensor 3. Use senor which has lower temrerature between Remocon's and indoor's Zone State/Default E.S.P 1.
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Page 32: 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-H1208VA0" • 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 33: External Static Pressure & Air Flow
External Static Pressure & air Flow External Static Pressure & air Flow [Table-1]. Evaporator Fan Performance Data LB-H1208VA0 External Static Pressure(in aq) 0.12 0.24 0.35 0.47 0.59 0.71 0.83 0.94 1.06 1.18 RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) RPM INPUT(W) 3108 560 706 612 819 661 925 705 1020 745 1107 782 1187 818 1264 851 1336 883 1405 914 1472 944 1537... -
Page 34: Start-Up Pre-Start Quick Check List
Checking the Power Cord (For 42/48/60 Model) Start-Up Pre-Start Quick Check List • Is unit level and located with proper clearances? • Is the duct work correctly sized, run, taped, insulated and weather proofed with proper unit arrangement? • Is condensate line properly sized, run trapped and pitched? •... -
Page 35: Final Installation Checklist And Maintenance
Final Installation Checklist and Maintenance Final Installation Checklist and Maintenance • Is the condenser fan and indoor blower operating correctly, with proper rotation and without undue noise? • Are the compressors operating correctly and has the system been checked with a charging chart? •... - Page 36 Final Installation Checklist and Maintenance Condenser coil Unfiltered air circulates through the unit's condenser coil and can cause the coil's surface to become clogged with dust, dirt, etc.. To clean the coil, vertically (i.e., along the fins) stroke the coil surface with a soft bristled brush. Keep all vegetation away from the condenser coil area.
- Page 37 P/No.: 3828A20844B...