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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.your set and retain it for future reference.
P/NO : MFL68100313
www.lg.com
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Table of Contents
Related Manuals for LG ARWB200LAS4
Summary of Contents for LG ARWB200LAS4
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Page 1: Installation Manual
• 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.your set and retain it for future reference. www.lg.com P/NO : MFL68100313... -
Page 2: Tips For Saving Energy
Installation TIPS FOR SAVING ENERGY • Have all electric work done by a licensed electrician according to "Elec- tric Facility Engineering Standard" and "Interior Wire Regulations" and the Here are some tips that will help you minimize the power consumption instructions given in this manual and always use a special circuit. -
Page 3: Table Of Contents
TABLE OF CONTENTS CAUTION Installation TIPS FOR SAVING ENERGY • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Do not install the product where the noise or hot air from the outside unit could IMPORTANT SAFETY INSTRUCTIONS damage the neighborhoods. -
Page 4: Installation Process
Explain the use of the system as clearly as possible to your customer and System Capacity (HP) Transfer to customer with explanation make sure all relevant documentation is in order Combination Unit ARWB180LAS4 ARWB200LAS4 Model Independent Unit ARWB180LAS4 ARWB200LAS4 CAUTION... - Page 5 System Capacity (HP) System Capacity (HP) Combination Unit Combination Unit ARWB280LAS4 ARWB300LAS4 ARWB320LAS4 ARWB480LAS4 ARWB500LAS4 ARWB520LAS4 Model ARWB140LAS4 ARWB160LAS4 ARWB180LAS4 ARWB200LAS4 ARWB200LAS4 ARWB200LAS4 Independent Unit Model ARWB140LAS4 ARWB140LAS4 ARWB140LAS4 Independent Unit ARWB140LAS4 ARWB160LAS4 ARWB180LAS4 Refrigerant Precharged Amount 5.8 + 5.8 3.0 + 5.8...
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Page 6: Alternative Refrigerant R410A
ALTERNATIVE REFRIGERANT R410A Unit 4 Unit System Capacity (HP) Combination Unit ARWB680LAS4 ARWB700LAS4 ARWB720LAS4 The refrigerant R410A has the property of higher operating pressure in ARWB200LAS4 ARWB200LAS4 ARWB200LAS4 comparison with R22. Model ARWB200LAS4 ARWB200LAS4 ARWB200LAS4 Independent Unit ARWB140LAS4 ARWB160LAS4 ARWB180LAS4... - Page 7 CAUTION • Do not install Multi V water outdoors. Always install indoor like 100 more 100 more 100 more machine room. (Serviceing space) (Serviceing space) (Serviceing space) • Inverter product may generate electric noise. Keep the body from computer, stereo etc. at enough distance. Specially leave space from indoor remote controller to shoes electric devices at the above 3m in weak electric wave area.
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Page 8: Installation Space
INSTALLATION SPACE WATER CONTROL Individual Installation Water control During the installation of the unit, consider service, inlet, and outlet - Keep the water temperature between 10~45°C. Other it may cause acquire the minimum space as shown in the figures below. the breakdown. - Page 9 INSTALLATION Closed type Effect Items Circulating water Supplemented water Corrosion Scale Basic Item pH(25C) 7.0~8.0 7.0~8.0 - Install at places where it can endure the weight and vibration/noise of Conductivity[25C](mS/m) Below 30 Below 30 the outside unit . Chlorine ion(mg CI - /l) Below 50 Below 50 - The outside unit supports at the bottom shall have width of at least...
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Page 10: Preparation Of Piping
Ⓐ The corner part must be fixed firmly. Otherwise, the support for the Burrs removal installation may be bent. - Completely remove all burrs from the cut cross section of pipe/tube. - Put the end of the copper tube/pipe to downward direction as you re- Ⓑ... - Page 11 Opening shutoff valve Standard refrigerant pipe EPDM heat insulation material thickness. Remove the cap and turn the valve counter clockwise with the Air conditioned location Non-air conditioned location wrench. Classification Note1) Note2) Note3) Note4) General location Special location General location Negative condition Turn it until the shaft stops.
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Page 12: Refrigerant Piping Installation
Refrigerant piping on three principles REFRIGERANT PIPING INSTALLATION Drying Cleanliness Airtight WARNING Should be no moisture There is no refrigerant No dust inside. inside leakage Always use extreme care to prevent the refrigerant gas (R410A) from leakage while using fire or flame. If the refrigerant gas Dust Moisture Leakage... -
Page 13: Refrigerant Pipe
Connection of Outside units Installation of Outside Unit, HR Unit, Indoor Unit Refrigerant Pipe Outside units Model Low Pressure Gas Pipe Liquid Pipe High Pressure Gas Pipe 3 pipes are connected to the HR unit from the outside unit, classified into liquid pipe, low pressure gas pipe and high pressure gas pipe de- pending on status of refrigerant passing through the pipe. - Page 14 CAUTION Use the following materials for refrigerant piping. Liquid pipe - Material: Seamless phosphorous deoxidized copper pipe Low pressure gas pipe - Wall thickness : Comply with the relevant local and national regu- lations for the designed pressure 3.8MPa. We High pressure gas pipe recommend the following table as the minimum wall thickness.
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Page 15: Installation Of Water Pipe
I/min - If necessary install the insulation material in the water pipe inlet/out- ARWB100LAS4 ARWB200LAS4 let to prevent water drop, freeze and to save energy. (Use the above 20mm thickness PE insulation material.) Upper graph is a theoretical value for selection and it may be different - Tightly connect the socket to the water pipe refer to below table for according to specification of strainer. -
Page 16: Pipe Connections Between Indoor And Outside Unit
Flow switch work PIPE CONNECTIONS BETWEEN IN- DOOR AND OUTSIDE UNIT - It is recommended to install the flow switch to the water collection pipe system connecting to the outside unit. (Flow switch acts as the 1st protection device when the heat water is Refrigerant piping system not supplied. - Page 17 Refrigerant pipe diameter from branch to branch (B,C,D) Refrigerant pipe diameter from outside unit to first branch. (A) WARNING Upward * : Serial connection of HR units : Capacity sum of indoor units ≤ outside unit Pipe diameter when pipe length is Pipe diameter total capac- 90m over to 1st branch...
- Page 18 Pattern 7 Pattern 2 • * : Serial connection of HR units : Capacity sum of indoor units ≤ 192 kBtu/h Pattern 8 • Impossible installation : HR unit Head branch pipe Y and Head branch pipe. Pattern 3 • * : Maximum indoor units per a branch are 8 indoor units •...
- Page 19 Pipes between outside unit Outside unit Connection s are 2m or longer Oil Trap WARNING 0.2m or more 2m or less 2m or longer • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Ex) In case indoor unit combination ratio 120% is connected to 20HP(58kW) outside unit .
- Page 20 - Apply Oil Trap as shown below when the length of the pipe between The amount of Refrigerant the outside unit s is more than 2m. Otherwise, the unit may not oper- The calculation of the additional charge should take into account the ate properly.
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Page 21: Refrigerant Charging
Branch pipe Fitting WARNING • Regulation for refrigerant leakage Y branch : the amount of refrigerant leakage should satisfy the following equation for human safety. Ⓐ To Branch Piping or Indoor Unit Ⓑ To Outside Unit Total amount of refrigerant in the system ≤0.44 (kg / m Volume of the room at which Indoor Unit of the least capacity is installed... -
Page 22: Leak Test And Vacuum Drying
- Header should be insulated with the insulator in each kit. Header [unit:mm] Models Gas pipe Liquid pipe Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure. ID12.7 ID6.35 ID12.7 ID6.35 4 branch ID9.52 ID15.88... -
Page 23: Vacuum Mode
WARNING WARNING Use a vacuum pump or Inert(nitrogen) gas when doing leakage test 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 Flamma- or air purge. Do not compress air or Oxygen and do not use Flamma- ble gases. -
Page 24: Thermal Insulation Of Refrigerant Piping
Thermal insulation of refrigerant piping Penetrations Inner wall (concealed) Outer wall Outer wall (exposed) Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant poly- ethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves. - Page 25 CAUTION Outside Unit • Use the 2-core shield cables for communication cables. Never use Indoor Indoor them together with power cables. Unit Unit • The conductive shielding layer of cable should be grounded to the metal part of both units. Remote Remote •...
- Page 26 Wiring of main power supply and equipment Noise Filter capacity - Use a separate power supply for the Outside Unit and Indoor Unit. - Bear in mind ambient conditions (ambient temperature,direct sun- Main PCB light, rain water,etc.) when proceeding with the wiring and connec- tions.
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Page 27: Field Wiring
Field Wiring Series outside units When the power source is supplied to Each outside unit individually. Single outside unit Outside Voltage range(V) Outside Power supply Frequency (3Ø 4wires) Power supply Outside Indoor (Main Switch) [Master] [Slave1] [Slave2] [Slave3] (3Ø 4wires) R S T N R S T N R S T N... - Page 28 Checking the setting of outside units Example) Connection of Communication Cable [BUS type] [STAR type] Checking according to dip switch setting - Connection of communication - Abnormal operation can be - You can check the setting values of the Master outside unit from the cable must be installed like caused by communication de- 7 segment LED.
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Page 29: Hr Unit Pcb
HR UNIT PCB Selection of the model of the HR unit #4 valve housing #1 valve housing (For 2 branches) (For 3 branches) (For 4 branches) #1 cooling valve PRHR021 PRHR031 PRHR041 LED(green) #1 heating valve Initial LED(red) 7-SEG Setting 1 branches SW05M (Switch for... - Page 30 Automatic Addressing Y branch pipe [Unit:mm] The address of indoor units would be set by Automatic Addressing Models Gas Pipe Liquid pipe I.D22.2 - Wait for 3 minutes after supplying power. I.D25.4 I.D19.05 I.D15.88 I.D19.05 I.D12.7 I.D12.7 I.D9.52 (Master and Slave outside unit s, indoor units) I.D19.05 I.D15.88 I.D12.7...
- Page 31 The Procedure of Automatic Addressing WARNING 1. Execute auto addressing and auto pipe detection again when- Power On ever the indoor PCB and HR unit PCB is replaced. • Operation error occurs unless power is applied to the indoor and HR units. Waiting 3 minutes 2.
- Page 32 Flow chart of manual addressing for pipe de- Example of manual valve addressing (Zoning tection setting) (In case that an indoor unit of central control address "11" is connected Execute in case of Auto pipe detection to a valve #1 of an HR unit) failure Wait for about 5 minutes.
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Page 33: Dip Switch Setting
Example of checking valve address Dip switch setting (In case that an indoor unit of central control address "11" is connected Setting the function to a valve #1 of an HR unit) Select the mode/function/option/value using ‘▶’, ‘◀’ Button and con- firm that using the ‘●’... - Page 34 Geothermal mode setting Group recognizing the central controller If you want to use the product with heat source water of the low tem- No.0 group (00~0F) perature such as ground heat, it is the function that enables the use of No.1 group (10~1F) ground heat mode.
- Page 35 Sol. Valve 220V output Setting the outside unit address It is the function to select 220V output when you want solenoid valve How to set the mode control. Turn on DIP switch No.5 of the master unit PCB How to set the mode Use ‘▶‘...
- Page 36 Use Sump Heater It is the function to select when you want to connect and use Sump Heater. How to set the mode Turn on DIP switch No.5 of the master unit PCB Use ‘▶‘ and ‘◀‘ button to mark “Func” in the 7 seg- ment, and press ‘●‘...
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Page 37: Test Run
TEST RUN WARNING • Always check whether the water supply is flowing smoothly Precaution before test run before the test run. (If sufficient amount of water is not flow- ing, it can burn the product.) • During the initial test run after installing the product, leaving Check whether the air is completely removed and the water sup- the product for more than 3 days or after replacing the com- ply is flowing smoothly. - Page 38 Maintenance/Repair checklist 2) Be sure to check if the gate valve of inflow/outflow pipe and the valve for outflow pipe are properly closed when cleaning. 3) Connect the water pipe for cleaning with the chemical solvent Period (Year) through the service plug of the pipe and fill up the panel heat ex- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Checkpoint changer with 50°C~60°C of cleaning solvent and circulate it with...
- Page 39 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 display window of indoor units and wired remote controller, and 7-segment LED of outside unit control board as shown in the table.
- Page 40 Display Title Cause of Error Master outside unit low pressure over-drop. Compressor turned off due to master outside unit low pressure overdrop. Master Outside Unit Low Compression Ratio Lim- ·Master Outside Unit stayed under low Compression limit for 3 ited minutes Master Outside unit Communication error between Master Outside unit inverter compressor current detection (CT) sen-...
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Page 41: Caution For Refrigerant Leak
Display Title Cause of Error Master outside unit Main Board - External Board Master outside unit Main Board - External Board communication communication Error Error Failure of operation mode conversion at Master Failure of operation mode conversion at Master Outside Unit Outside Unit Plate type heat exchanger freeze prevention Plate type heat exchanger freeze prevention error... -
Page 42: Cooling Tower Applied Method
In case the concentration exceeds the limit When the concentration exceeds the limit, change original plan or take one of the countermeasures shown below: Closed type - Countermeasure 1 cooling tower Provide opening for ventilation. Provide 0.15% or more opening to floor space both above and below door, or provide opening without door. -
Page 43: Installation Guide For Harmonics And Flicker
The below Installation guide is limited applicable only for model Model : ARWB200LAS4, ARWB180LAS4, ARWB160LAS4 Installation Guide for Harmonics (EN 61000-3-2 & EN 61000-3-12) This equipment complies with IEC (EN) 61000-3-2.