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2.5 Electrical work

2.5.1 Precautions

When knocking out knock holes
• To punch a knock hole, hit on it with a hammer.
• After knocking out the holes, we recommend you paint the edges and areas around the edges using paint to prevent

rusting.

• When passing electrical wiring through the knock holes, remove any burrs from the knock holes and wrap the wiring

with protective tape to prevent damage.

CAUTION

Do not operate the air conditioner until the refrigerant piping work is completed.
(Operating the air conditioner before the refrigerant piping work is completed may damage the compressor.)
• Install an earth leakage circuit breaker.

Since this is a inverter air conditioner. In order to prevent malfunction of the earth leakage breaker itself, use a breaker
resistant to higher harmonics.

• After finishing the electric work, confirm that each electric part and terminal inside the electric parts box is connected

securely.

CAUTION

If there are any possibilities that small animals or
insects enter the system through the knock holes, plug
the holes with packing materials (to be prepared onsite).

Burr

Use a conduit for the cable

• Outside the unit, make sure the thin signal cable (i.e. for the remote control, between units, etc.) and the thick electric

wiring do not pass near each other and use of the shield signal cable is recommended.
Otherwise, the outdoor unit may be affected by electrical noise (external noise), and malfunction or fail.

• Secure the wiring with the accessory clamps so that it does not touch the piping.
• Make sure the wiring and the electric parts box cover do not stick up above the structure, and close the cover firmly.

• Only professional electricians having sufficient knowledge should perform the electrical wiring work.

Perform the electrical wiring work in accordance with the electrical wiring diagram.
Make sure to set OFF the branch switch and over current breaker before starting the work.

• Install an earth leakage breaker.

• Perform grounding to the indoor units and outdoor units.
• Do not connect the ground wire to gas pipes, sewage pipes, lightning rods telephone ground wires.
• Gas pipes ···· Can explode or catch fire if gas leaks.
• Sewage pipes···· Provides no grounding effect if hard plastic pipes are used.
• Telephone ground wires and lightening rods ···· dangerous when struck by lightening due to abnormal rise in the ele trical

potential in the ground.

NOTE

2. Guideline for each installation process

Heat pump 60Hz/R410A

_

23

Installation of

Outdoor Units

SINGLE ZONE

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Содержание ATNH24GPLE2

Страница 1: ...SINGLE ZONE Heat pump 60Hz R410A 6CSL0 01B Replaces 6CSL0 01A ...

Страница 2: ...SINGLE ZONE General Information Indoor Units Outdoor Units Design and installation ...

Страница 3: ... and latest technology products with best quality in optimized time SINGLE ZONE systems with are equipped with DC inverter technology and R410A refrigerant is perfect solution to various installation locations LG SINGLE ZONE system consists of a single common outdoor unit for single indoor unit such as ceiling cassette This Engineering product data book incorporates information about the product i...

Страница 4: ...lkaline gas are produced 2 If the outdoor unit is installed close to the sea shore direct exposure to the sea breeze should be avoided and choose an outdoor unit with anti corrosion treatment CAUTION Selection of the control system Control wiring method Description of devices Electrical wiring Electrical characteristics Field wiring Indoor unit specifications Outdoor unit specifications Capacity c...

Страница 5: ...SINGLE ZONE Part 1 General information 1 Model Line up 2 Nomenclature 3 Individual Control System ...

Страница 6: ...its 1 2 Outdoor Units Nominal Capacity Btu h 24 000 42 000 kW 7 03 12 3 Model Names AUUW24GD2 LUU247HV AUUW42GD2 LUU427HV Power supply 208 230V 1Ø 60Hz Chassis Category Type Chassis Model Name Capacity Btu h kW 24 000 7 03 42 000 12 3 Ceiling cassette 4way TP ATNH24GPLE2 LCN247HV TM ATNH42GMLE2 LCN427HV ...

Страница 7: ...ty in kBtu h 24 24kBtu h 42 42kBtu h Model type H Heat Pump Indicates that this is a indoor unit for R410A ATN Ceiling cassette type indoor unit A U U W 2 4 G D 2 Model Type D Standard Inverter Serial number Electric ratings Volts Phase Freq G 220 240V 1Ø 50Hz 208 230V 1Ø 60Hz Indicates that this is a R410A outdoor unit SINGLE ZONE Model type W Inverter heat pump Nominal cooling capacity in kBtu h...

Страница 8: ...NE Heat pump 60Hz R410A _ 3 3 Individual Control System 3 1 Control systems standard These controllers will be provided with the respective indoor units Type Individual controller Applicable model Wired remote controller Ceiling cassette PQRCVSL0QW ...

Страница 9: ...SINGLE ZONE Part 2 Product data n Indoor units n Outdoor units ...

Страница 10: ...oor units Ceiling cassette 4 way 1 1 List of functions 1 2 Specifications 1 3 Dimensions 1 4 Piping diagrams 1 5 Wiring Diagrams 1 6 Air flow and temperature distributions reference data 1 7 Sound levels 1 8 Controller ...

Страница 11: ... control X Electric heater X High ceiling operation O Auto Elevation Grille PTEGM0 Reliability Hot start O Self diagnosis O Soft dry operation O Convenience Auto changeover O Auto cleaning X Auto operation artificial intelligence X Auto Restart O Child lock O Forced operation O Group control O Sleep mode O Timer on off O Timer weekly O Two thermistor control O Individual control Wired remote contr...

Страница 12: ...idification Rate l h pts h Sound Pressure Level H M L dB A Sound Power Level dB A Piping Connections Liquid mm inch Gas mm inch Drain O D I D mm inch Safety Devices Power and Communication Cable included Earth No x mm2 AWG Decoration Panel Model Name Casing Color Dimensions W x H x D mm W x H x D inch Net weight kg lbs 208 230 1 60 60 0 60 840 204 840 33 1 16 x 8 1 32 x 33 1 16 20 5 45 2 2 x 8 x 1...

Страница 13: ...Indoor Units Heat pump 60Hz R410A _ 3 1 Ceiling cassette 4 way SINGLE ZONE 1 3 Dimensions TP Chassis ATNH24GPLE2 LCN247HV ...

Страница 14: ...Indoor Units 4 _ Heat pump 60Hz R410A 1 Ceiling cassette 4 way SINGLE ZONE TM Chassis ATNH42GMLE2 LCN427HV ...

Страница 15: ...or suction air temperature Thermistor for Evaporator outlet temperature Thermistor for Evaporator inlet temperature n Refrigerant pipe connection port diameters Unit mm inch Description PCB Connector Thermistor for suction air temperature CN ROOM Thermistor for evaporator inlet temperature CN PIPE IN Thermistor for evaporator outlet temperature CN PIPE OUT Model Gas Liquid ATNH24GPLE2 LCN247HV Ø15...

Страница 16: ...Indoor Units 6 _ Heat pump 60Hz R410A 1 Ceiling cassette 4 way SINGLE ZONE Models ATNH24GPLE2 LCN247HV ATNH42GMLE2 LCN427HV 1 5 Wiring diagrams ...

Страница 17: ...91 86 86 81 81 75 75 72 72 75 75 6 6 6 6 3 3 3 3 1 6 1 6 68 64 64 68 72 72 73 73 1 6 Air flow and temperature distributions reference data Models ATNH42GMLE2 LCN427HV Cooling Heating Discharge angle 40 Air velocity ft s Teftperature F 13 1 13 1 9 8 9 8 6 6 6 6 3 3 3 3 Discharge angle 50 Air velocity ft s Teftperature F 10 5ft 0ft 13ft 16ft 10ft 16ft 7ft 3ft 3ft 0ft 7ft 3ft 10ft 7ft 13ft 10 5ft 13f...

Страница 18: ...0 NC 15 NC 20 NC 25 NC 30 NC 35 NC 40 NC 45 NC 50 NC 55 NC 60 NC 65 Approximate Hearing Threshold Overall Sound pressure level ATNH24GPLE2 LCN247HV ATNH42GMLE2 LCN427HV Notes Sound measured at 4 9ft away from the center of the unit Data is valid at free field condition Data is valid at nominal operation condition Reference accoustic pressure 0dB 20μPa Sound level will vary depending on a range of ...

Страница 19: ...ller button system will approximately operate after 1 2 minutes 1 4 5 7 11 10 9 8 2 3 6 13 12 Please attach the inform label inside of the door Please choose proper language depend on your country 14 15 OPERATION INDICATION SCREEN SET TEMPERATURE Button FAN SPEED Button ON OFF Button OPRATION MODE SELECTION Button WIRELESS REMOTE CONTROLLER RECEIVER Some products don t receive the wireless signals...

Страница 20: ...GLE ZONE 1 Power supply 2 List of functions 3 Specifications 4 Dimensions 5 Piping diagrams 6 Wiring diagrams 7 Capacity tables 8 Capacity coefficient factor 9 Operation range 10 Electrical characteristics 11 Field wiring diagram 12 Sound levels ...

Страница 21: ...tion wiring Therefore the power supply work can be carried out at just one place of the outdoor unit It will simplify the work procedure and save cost Wiring cable size must comply with the applicable local and national codes Circuit breaker Earth Power supply Outdoor unit Type Outdoor unit Capacity kBtu h Circuit breaker capacity Power supply Voltage range 1Phase Inverter AUUW24GD2 LUU247HV 24 0 ...

Страница 22: ...eader branch Air Guide ODU Dry Contact Low Ambient Kit Category Functions AUUW24GD2 LUU247HV AUUW42GD2 LUU427HV Reliability Defrost Deicing O O High pressure switch X X Low pressure switch X X Phase protection X X Restart delay 3 minutes O O Self diagnosis O O Soft start O O Convenience Test function X X Night Silent Operation O O Wiring Error Check X X Peak Control O O Mode Lock O O Forced Operat...

Страница 23: ...e to our policy of innovation some specifications may be changed without notification Combination Outdoor unit AUUW24GD2 LUU247HV AUUW42GD2 LUU427HV Indoor unit ATNH24GPLE2 LCN247HV ATNH42GMLE2 LCN427HV Capacity Cooling Min Rated Max kW 2 84 7 03 7 81 5 00 12 3 13 8 Min Rated Max Btu h 9 700 24 000 26 700 17 100 42 000 47 100 Heating Min Rated Max kW 3 20 7 91 8 80 5 00 13 8 15 4 Min Rated Max Btu...

Страница 24: ... Model Model x No GJT240MAA x 1 GPT442MBA x 1 Motor type BLDC BLDC Motor Output W x No 2 137 x 1 4 000 x 1 Refrigerant Type R410A R410A Precharged Amount g oz 2 000 70 5 3 400 119 9 Chargeless Pipe Length m ft 7 6 25 0 7 6 25 0 Additional Charging Volume g m oz ft 40 0 43 40 0 43 Control Electronic Expansion Valve Electronic Expansion Valve Refrigerant Oil Type FVC68D FVC68D Charged volume cc x No...

Страница 25: ...Outdoor Units Heat pump 60Hz R410A _ 5 1 DC Inverter SINGLE ZONE SINGLE ZONE 1 4 Dimensions U4 Chassis AUUW24GD2 LUU247HV ...

Страница 26: ...Outdoor Units 6 _ Heat pump 60Hz R410A 1 DC Inverter SINGLE ZONE SINGLE ZONE U3 Chassis AUUW42GD2 LUU427HV ...

Страница 27: ...erature Thermistor Inlet Air Temperature Thermistor Outdoor Unit Ø9 52 3 8 Flare Connection Ø15 88 5 8 Flare Connection Condensing Temperature Thermistor Electronic Expansion Valve Liquid Side Piping Gas Side Piping Description PCB Connector AUUW24GD2 LUU247HV AUUW42GD2 LUU427HV Suction Temperature Thermistor CN_TH3 CN_TH3 Discharge Temperature Thermistor Condenser Out Temperature Thermistor CN_TH...

Страница 28: ...Outdoor Units 8 _ Heat pump 60Hz R410A 1 DC Inverter SINGLE ZONE SINGLE ZONE Models AUUW24GD2 LUU247HV 1 6 Wiring diagrams Models AUUW42GD2 LUU427HV ...

Страница 29: ...61 29 72 20 59 1 62 89 6 21 13 18 28 1 48 22 57 18 63 1 75 24 00 18 89 1 83 24 72 19 10 1 85 26 87 19 61 1 90 28 31 20 05 1 93 95 0 20 49 17 66 1 65 21 92 18 03 1 87 23 35 18 31 1 94 24 00 18 48 1 91 26 20 19 05 2 00 27 63 19 50 2 04 104 0 19 59 17 12 1 81 21 02 17 53 1 95 22 45 17 85 1 98 23 16 18 08 1 99 25 30 18 66 2 02 26 73 19 13 2 06 109 4 19 05 16 52 1 78 20 48 16 95 1 86 21 91 17 28 1 86 2...

Страница 30: ...35 57 3 45 89 6 36 98 31 57 3 15 39 50 32 18 3 72 42 01 32 62 3 90 43 26 32 99 3 95 47 03 33 87 4 04 49 54 34 63 4 12 95 0 35 86 30 51 3 52 38 36 31 14 3 99 40 85 31 62 4 14 42 00 31 92 4 07 45 85 32 91 4 27 48 35 33 68 4 35 104 0 34 29 29 58 3 86 36 78 30 28 4 16 39 28 30 83 4 22 40 53 31 23 4 23 44 28 32 22 4 30 46 78 33 04 4 39 109 4 33 34 28 54 3 79 35 84 29 27 3 96 38 34 29 85 3 96 39 59 30 2...

Страница 31: ...t standard maximum capacity Qrated from specification table Outdoor unit capacity at Ti To temperature Q Ti To from capacity table Outdoor unit capacity coefficient factor F Ti To Q Ti To Qrated Piping correction factor Fpiping for piping length from capacity coefficient factor table Indoor Unit actual capacity Qactual Qrated x F Ti To x Fpiping Example 2 Calculation of actual system capacity Outd...

Страница 32: ...ng Heating Indoor Temp F DB Outdoor Temp F WB Continuous Operation Warming up Operation 50 59 60 8 68 77 86 91 3 77 4 0 4 5 14 23 32 41 50 59 64 4 68 13 Indoor Temperature F WB 41 50 53 6 59 68 73 4 77 82 4 Outdoor Temperature F DB 4 5 14 23 32 41 50 59 68 77 86 95 104 113 118 4 122 Continuous Operation ...

Страница 33: ...er load rated 1 0A or more 4 Select wire spec based on the MCA 5 Recommended circuit breaker is ELCB Earth Leakage circuit breaker 6 MSC RLA are measured as the compressor only test condition 7 OFM is measured as the outdoor unit test condition MCA Minimum Circuit Amperes A MOP Maximum rating over current protective device MSC Maximum Starting Current RLA Rated Load Amperes A OFM Outdoor Fan Motor...

Страница 34: ...ose connection can overload and damage electrical components 5 Always ground the air conditioner with a grounding wire and connector to meet the LOCAL REGULATION Notes 1 All wirings components and materials to be procured on the site should be according to the standard 2 Use copper conductor only 3 Install circuit breaker for safety 4 5 Wiring cable size must comply with the applicable local and n...

Страница 35: ...ditions are assumed to be standard Sound pressure level AUUW24GD2 LUU247HV AUUW42GD2 LUU427HV Octave Band Center Frequency Hz Octave Band Sound Pressure Level 0dB 20μPa Octave Band Sound Pressure Level 0dB 20μPa 10 20 30 40 50 60 70 80 63 125 250 500 1000 2000 4000 8000 NC 15 NC 20 NC 25 NC 30 NC 35 NC 40 NC 45 NC 50 NC 55 NC 60 NC 65 Approximate Hearing Threshold Octave Band Center Frequency Hz 1...

Страница 36: ...SINGLE ZONE Design and installation 1 General installation guideline 2 Guideline for each installation process 3 Installation of indoor unit 4 Installation of outdoor Unit ...

Страница 37: ...rk Removal moulding boxes Installation of indoor unit Construction work Air conditioning work Refrigerant piping work Drain piping work Duct work Insulation work Electrical work Ceiling preparations Building rooftop Outdoor unit foundation work Installation of outdoor unit Air tight test Vacuum drying Additional charge of refrigerant Fit decoration panels Cleaning inside and outside Test run T A B...

Страница 38: ...airflow short circuit and ensure sufficient space is allowed for servicing Follow the testing operation check sheet Explain to customer or operator the manual etc For 24 hours at 3 8MPa 551 1psi_R410A or 2 8MPa 406 1psi_R22 there must be no drop in pressure Charge the refrigerant accurately by using a Less than 5 Torr At least more than 1hr charging cylinder Make sure there are no gaps left betwee...

Страница 39: ...imes parts of the beam which cannot be used to accommodate through holes 2 1 2 Selection of sleeve Sleeve work should be performed to make a space for passing pipe through the wall or ground under construction 2 Guideline for each installation process Heat pump 60Hz R410A _ 3 Installation of Outdoor Units SINGLE ZONE For example if gas pipe and liquid pipe is 1 2inch 1 4inch the sleeve diameter is...

Страница 40: ... regulation CAUTION 2 1 4 Insert work and support work An insert is a metal tool which is inserted into a floor or beam before the concrete is set such that fittings such as duct pipes or suspension bolts for hanging units can be fitted into the place later The positioning of the inserts must be decided early 1 Insert work Example Through holes in a reinforced concrete beam Molding box Embedding d...

Страница 41: ...Supporting interval 1 5 4 92 2 0 6 56 m ft One point supporter 200 440 9 kg lbs b Down stopper supporting Welding Refrigerant pipe Insulated Supporting band Insulated Supporting band Down stopper Welding Plate nut Hexagonal nut O ring band During saddle supporting work insulation should not be pressed by saddle as this can lead to tearing of insulation and thus falling of condensed water during pr...

Страница 42: ...lushing Vacuum drying Replace Nitrogen Pipe covering Pipe covering Flushing Use the proper materials Adhere strictly to standard soldering work practice Adhere strictly to standard flaring work practice Adhere strictly to standard flaring connection work practice The end of all copper pipes should be capped to protect them from dust or water particles while safe keeping The 3 princples of refriger...

Страница 43: ...emoval not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper pipe in a die in the dimension shown in the table below 5 Check after flaring Compare the flared work with figure on right side If flare is found to be defective cut off the flared section and do flaring work again Outer diameter A mm inch mm inch Ø6 35 1...

Страница 44: ...en the flare nut 5 Check that there is no superficial damage to the surface of the flare CAUTION A D Oil Oil External diameter of pipe D Pipe widening dimension A in mm 1 4 6 35 8 6 9 0 3 8 9 52 12 6 13 0 1 2 12 7 15 8 16 2 5 8 15 88 19 0 19 4 3 4 19 05 22 9 23 3 6 35 1 4 9 52 3 8 12 70 1 2 15 88 5 8 19 05 3 4 Size ø mm inch Thickness R22 R410A 0 7 0 028 0 8 0 031 0 8 0 031 0 8 0 031 0 8 0 031 0 8...

Страница 45: ... careful to keep dust away 6 Flare the pipe Rotate the flaring tool 3 or 4 turns after a clicking sound is produced this results in a clean flared surface 1 Cut the pipe using a pipe cutter 2 The cut edge has burrs the amount of burrs becomes larger when pipe wall is thick 3 Remove the burrs using a reamer Be careful not to let particles enter the pipe Point the pipe end downward during cutting 4 ...

Страница 46: ...he area contacted with insulation Improper piping and flaring can lead to the leakage of refrigerant CAUTION Over tightening of the flare nuts in the pipes may cause nuts to crack or the refrigerant to leak CAUTION Never use the plastic cap during closing CAUTION 1 After installation completion make sure to open the valve operating the unit with the valve shut off will destroy the compressor Refer...

Страница 47: ...pply pressure 0 05 0 1kg cm2 G 0 71 1 42psi b When supplying inert gas be sure to open one end of piping CAUTION Brazing section Taping Copper pipe 1 4 Pressure regulator Pressure regulator Nitrogen cylinder Nitrogen cylinder High pressure hose Hose Pipe Outdoor unit Packless valve Packless valve 1 Niorogen flushing method During brazing If brazing work is carried out without passing nitrogen gas ...

Страница 48: ...Flare part brazing Pipe brazing with socket Expending pipe brazing over 10 3 8 mm inch N2 N2 N2 N2 Unit mm inch 1 Generally expending pipe brazing is performed with pan coil type copper pipe and socket blazing is performed with straight copper pipe 2 Do not perform flare part brazing or butt brazing 3 Brazing should be performed on welding table 4 Any dust should enter in the pipe while brazing 5 ...

Страница 49: ...ipe side of outdoor unit before its connection to BD unit or indoor unit Flow the steps 3 4 5 6 7 In case of BD unit system before connecting to indoor units each pipe should be flushed individually Flow the steps 3 4 5 6 7 Refrigerant pipe flushing of 3 major effects 1 Removal of oxidation bubbles formed inside copper pipes when nitrogen replacement is insufficient during soldering work 2 Removal...

Страница 50: ... 14 57 2 Outlet temp RH 50 400 0 4 800 31 1 2 32 1 1 4 25 31 32 mm inch Cassette 4 way cm3 min lpm Drain amount at 10mm height Drain pump discharge head mm inch Standard Drain pump Drain pipe diameter External Internal Type Drain amount lpm 0 128 0 137 0 169 0 185 0 273 0 305 0 337 0 369 0 402 0 546 Air flow rate CMH CFM 4 7 5 0 6 2 6 8 10 0 11 2 12 4 13 5 14 7 20 0 8 0 8 5 10 5 11 5 17 0 19 0 21 ...

Страница 51: ... pipe connection part 2 Supporting distance for common drain pipe Table The interval of the supporting hanger for drainage pipe 3 Anchor bolt supporting work Anchor bolt supporting work should be used for supporting a heavy indoor unit to ceiling Clamp hanger supporting work is for hanging refrigerant pipe drain pipe and cables It can prevent vibrating noise from passing through pipe We recommend ...

Страница 52: ...al clamp Drain pan Thermal insulation bend area Flexible drain hose Thermal insulation drain pipe area Flexible hose Drain pump PVC elbow PVC Max 800 31 1 2 300 11 13 16 or less Unit mm inch Common drain pipe 2 Guideline for each installation process 16 _ Heat pump 60Hz R410A Installation of Outdoor Units SINGLE ZONE ...

Страница 53: ...verse slope for drain connection Reverse slope Water flow Flexible tube should be connected with clamp concentrically If not water will leak from the connection CAUTION Sharp crook Sharp crook clamp connection Sharp crook 2 Guideline for each installation process Heat pump 60Hz R410A _ 17 Installation of Outdoor Units SINGLE ZONE ...

Страница 54: ...ter leakage test should be performed 24 hours later after drain work finishing In the test only water should be used Other liquids are unacceptable Insulation required Insulation not required Loose fitting wrong insulation Fitting insulation 2 Guideline for each installation process 18 _ Heat pump 60Hz R410A Installation of Outdoor Units SINGLE ZONE ...

Страница 55: ...ith insulation min 1 inch 2 5cm 2 Bond the both cutting sides of fitting cover 3 Only in specialcase is the vertical cutting of the insulation allowed 2 Bond both sides of the surface of EPDM and press them together for long lasting bonding 3 Dry it until it becomes thick and sticky 4 Put the pipe in EPDM insulation carefully so that the pipe will not get damaged with EPDM 2 Bond on both side of c...

Страница 56: ...uted above the ground Secure the drain hose appropriately 2 In cases where the outdoor unit is installed below the indoor unit perform the following Tape the piping drain hose and transmission cable from down to up Secure the tapped piping along the exterior wall using saddle or equivalent 4 way pipe direction select what you want to form pipe 2 Guideline for each installation process 20 _ Heat pu...

Страница 57: ...re pipe together Be sure to fully insulate connecting portion Liquid pipe Gas pipe Insulation Wrong method Correct method These parts are not insulated A C C C B A A B C Liquid pipe Gas pipe Insulation A B C A A B 2 Caution during insulation work In case the cables are installed in the conduit a finishing tape is not required Defect and insufficient insulation can cause condensation drops Binding ...

Страница 58: ... increase the thickness of insulation in the above table when conditions are hot and humid Where a customer supplies his own specifications then these must be adhered to Pipe size Thickness of insulation material 6 35 1 4 25 4 1 mm inch 10 13 32 mm inch or more 25 4 1 mm inch 15 19 32 mm inch Outdoor temperature and hummidity around the cooling piping might exceed 86 F and RH80 reinforce the insul...

Страница 59: ...it make sure the thin signal cable i e for the remote control between units etc and the thick electric wiring do not pass near each other and use of the shield signal cable is recommended Otherwise the outdoor unit may be affected by electrical noise external noise and malfunction or fail Secure the wiring with the accessory clamps so that it does not touch the piping Make sure the wiring and the ...

Страница 60: ...ovement Even if it is installed the power factor is not improved And if it is installed the outdoor unit is abnormally overheated Use specified electric wires in the wiring and connect them securely Fix them in such a way that external force is not applied at the terminals transmission wiring in the local field and ground terminal Never push excessive electric wires into the units Protect electric...

Страница 61: ...erminals on the indoor unit Terminals on the outdoor unit 1 L1 2 L2 2 L2 3 1 L1 2 L2 3 4 L1 5 L2 1 L1 1Phase model How to connect wiring to the terminals n For strand wiring 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to expose the strand wiring about 10 3 8 mm inch 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using a round te...

Страница 62: ...panel of control box marked as and fasten with earth screw h Please check Make sure the rubber bushes are Properly used in knock out holes after connecting main Power cable Connecting cable terminal Power cord terminal Cord clamp Cord clamp The circuit diagram is not subject to change without notice Be sure to connect wires according to the wiring diagram Connect the wires firmly so that not to be...

Страница 63: ...linder to this service port with charge hoses To avoid nitrogen entering the refrigerant system in a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing posi tion 1 Do a leakage test of all joints of the Tubing both indoor and outdoor and both gas and liquid side ser vice valves Bubbles indicate a le...

Страница 64: ... minutes or more Step 3 increase pressure to 3 8MPa 551 1psi for approxmate 24 hours Indicates existence of major leaks Indicates existence of major leaks Piping should not be pressured more than 3 8MPa 551 1psi b Check for pressure drop If there is no drop in pressure then the test is deemed a success If the pressure drops then the leak must be located See following page However if there is a cha...

Страница 65: ...ubbles will reveal the presence of a leakage Check 2 When searching for a minor leak or when there has been a fall in pressure while the system has been fully pres surized but the source of the leak cannot be traced 1 Release the nitrogen until the pressure reaches 0 3MPa 43 5psi 2 Increase pressure to 1 5MPa 217 6psi using gaseous refrigerant R410 3 Search for the source of the leakage using a le...

Страница 66: ...0 mmHg mmHg 5 10 20 30 40 50 60 70 90 100 200 300 400 500 600 700 760mmHg x Required degree of vaccum 3 8MPa 551 1psi Outside temperature range Evaporation point C F Gauge pressure mmHg 730 730 730 Key point Maintain a vacuum level of 755mmHg NOTE 2 Guideline for each installation process 30 _ Heat pump 60Hz R410A Installation of Outdoor Units SINGLE ZONE Boilng point of water C F 705 7333 55 724 ...

Страница 67: ...acuum pump The air conditioner is now ready for test run CAUTION 2 7 2 Evacuation 1 Connect the manifold hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit Confirm the Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies with tubing length and capacity of the pump The following table shows the time ...

Страница 68: ...y take an extremely long time to achieve vacuum We recommend a vacuum pump of approx 60 100 ℓ min 2 12 3 53 ft3 min 2 Degree of vacuum Ultimate vacuum varies largely according to use of the vacuum pump Vacuum pumps used for vacuum forming cannot be used for vacuum drying A vacuum pump with a high degree of vacuum is required When selecting a vacuum you should select one which is capable of achievi...

Страница 69: ...auge and the gauge manifold vacuum gauge 760 mmHg to the vacuum pump at the same time and run the pump for about 3 minutes 2 Make sure the reading of the Pirani vacuum gauge is 5 Torr or less The reading of conventional vacuum pumps low ers to about 0 2 Torr If the reading is not 5 Torr or less check the vacuum pump oil Oil is low in many cases 3 Check the attached gauge on the gauge manifold Adju...

Страница 70: ... or more Check the vacuum gauge to make sure that it has not risen If the gauge rise then there is still moisture in the pipe or there is a leak somewhere 3 Additional charge of refrigerant Connect the charging cylinder to the liquid pipe service port and charge with the required amount of refrigerant 4 Open stop valve to the full Open the stop valve on the liquid and the gas pipes to the full Vac...

Страница 71: ...complete the additional charging during the test run R 410A is a non azeotrope refrigerants Therefore these refrigerants must be charged in the Liquid state When charging the refrigerant into equipment from the cylinder turn the refrigerant cylinder upside down Make sure that the refrigerant liquid is taken out from the bottom part of the refrigerant cylinder Do not take out the refrigerant gas at...

Страница 72: ... service valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake temperature and the discharge is more than 8 14 4 4 For reference the gas side pressure of optimum condition is as below Cooling Discharge air Discharge temperature Intake temperature Refrigerant Outside ambient Temp The pressure of the gas side service valve R410A 35 C 95 F 8 0 1...

Страница 73: ... diagrams and other printed matter which is required to operate the system and hand over to the customer on the spot and request him to keep it handy e Service contact address Complete test run Make final report test run inspection sheet Explain how to operate and maintain equipment Hand over relevant printed materials List of equipment which has been delivered Installation drawing It is essential...

Страница 74: ...hether the following accessories are included with your unit 1 Standard accessories 3 1 Ceiling cassette 4 way Please read the instruction sheets 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 Wir...

Страница 75: ...w to the down wood directions The gate or exit of the building is protected by dual door system 2 In case the floor or surfaces of the place to be air conditioned is in direct contact with the outdoor air The floor of the heating room indirect contact with the storeroom garage or the outside air receives the cold air at the floor and the floor temperature decrease will feel cold at the feet In suc...

Страница 76: ...lation like glass wool atleast 10 3 8 mm inch in thickness In case of the multi flow type use the high humidity kit Otherwise the dew drops can be seen in the unit body Refrigerant piping Increase the piping insulation thickness with thickness above 20 25 32 mm inch Others Inside the ceiling near th air tight seal places no escape of the humidity In case of multiple indoor cassette units recommend...

Страница 77: ...nsion bolts Use either a W3 8 or M10 size bolt Use a hole in anchor for existing ceilings and a sunken insert sunken anchor or other field supplied parts for new ceilings to reinforce the ceiling to bear the weight of the unit Adjust clearance from the ceiling before proceeding further All the above parts are field suppiled NOTE Ceiling Anchor Long nut or turn buckle Suspension bolt False ceiling ...

Страница 78: ...se it will result in the malfunctioning of unit and cause water to drip 4 Remove the washer fixing plate used for preventing the washer from falling and tighten the upper nut 5 Remove the paper pattern for installation 3 For existing ceilings 1 Adjust the height and position of the unit 2 Perform steps 3 and 4 in 5 1 For new ceilings 3 1 6 Connecting pipes to the indoor unit 1 Refrigerant piping w...

Страница 79: ...al 4 screws 5 Connect the louver motor connector and display con nector 6 After tightening these screws install the air inlet grille including the air filter The decoration panel has its installation direction Before installing the decoration panel always remove the paper template Decoration panel fixing screws hexagon M5 screws Temporally fitting at 2 places Tightening about 10mm Air conditioner ...

Страница 80: ...r inside the electric parts box When clamping the wires be sure no pressure is applied to the wire connections by using the included clamping material to make appropriate clamps Also when wiring make sure the cover on the electric parts box fits snugly by arranging the wires neatly and attaching the electric parts box cover firmly When attaching the electric parts box cover make sure no wires get ...

Страница 81: ...such as popping open the electric parts box cover Make sure the cover closes tight Incomplete connections could result in overheat ing and in worst case electric shock or fire NOTE Make sure that the screws of the terminal are not loose Electricwire Round crimp style terminal Attach insulation sleeve Connect wires of the same gauge to both sides After the confirmation of the above conditions prepa...

Страница 82: ...phone ground wire There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock due to dust water etc Use the correctly rated breaker or fuse There is risk of fire or electric shock If the power cable or cord has scratches or skin peeled off or deterioted then immediately replace it There is risk of fire or electric shock Fo...

Страница 83: ...use the installation kit provided with the product Otherwise the unit may fall and cause severe injury Do not touch operate or repair the product with wet hands There is risk of electric shock or fire Do not place a heater or other appliances near the power cable There is risk of fire and electric shock Do not allow water to run into electric parts Install the unit away from water sources There is...

Страница 84: ... while the product is operating There are sharp and moving parts that could cause personal injury Be cautious when unpacking and installing the product Sharp edges could cause injury Be especially careful of the case edges and the fins on the condenser and evaporator If the refrigerant gas leaks during the repair do not touch the leaking refrigerant gas The refrigernat gas can cause frostbite cold...

Страница 85: ... air flow 7 Location having no risk of flammable gas leakage 8 Location free from mineral oil mist or an oil spray or vapor eg in kitchen It could result in leakage 9 Location free from corrosive gases such as sulphurous acid gas because it corrodes the copper pipes or soldered parts resulting in leakage 10 Location free from any machinery emitting electromagnetic waves which may disturb the contr...

Страница 86: ...mponents burn out shown on the name plate Are wiring and piping correct The unit may malfunction or the components burn out Is the unit safely grounded It may be dangerous at electric leakage Is wiring size according to specifications The unit may malfunction or the components burn out Is something blocking the air outlet or inlet of It may result in insufficient cooling either the indoor or outdo...

Страница 87: ...work is completed Do not discard them Decide upon a line of transport Leave the unit inside its packaging while moving until reaching the installation site Where unpacking is unavoidable use a sling of soft material or protective plates together with a rope when lifting to avoid damage or scratches to the unit For the installation of an outdoor unit refer to the installation manual attached to the...

Страница 88: ...ed to the carrier claims agent immediately When handling the unit refer to following cautions 1 Handle the unit with care Keep the unit upright in order to avoid inside components damage 2 If a forklift is to be used it should pass the forklift arms through the openings at the bottom of the unit 3 If a crane is used lift the unit preferably with 2 ropes of at least 7m 23 0ft length 4 When lifting ...

Страница 89: ... lower surface 200 7 7 8 mm inch or more 620 24 13 32 mm inch 400 15 3 4 mm inch AUUW24GD2 LUU247HV Basic intensity Bolt Factor M10 J type Concrete height 200 7 7 8 mm inch or more Bolt inserted depth 70 2 25 32 mm inch or more Bolt Factor M10 J type Concrete height 200 7 7 8 mm inch or more Bolt inserted depth 70 2 25 32 mm inch or more For good drain of outdoor unit keep the bottom height from i...

Страница 90: ...ng connection M10 Mechanical anchor bolt 60 2 3 8 120 4 23 32 mm inch 20 25 32 mm inch Diagram of lower surface Settlement draw of outdoor units The ingredients of foundation Cement Sand Gravel for the concrete should 1 2 4 ratio The foundation surface should be finished with mortar The edges of foundation should be rounded A drain passage should be made around the foundation to thoroughly drain w...

Страница 91: ...en the products and electric wires keeping away from stereo TV set or other appliances 1 Branch switch over current breaker 2 Remote controller 3 Cool heat selector 4 Radio or TV set 5 Wireless microphone If frequency signal of AM broadcasting or TV Set is non stable keep distances of 3m or more from product and use elec tric wire along with conduit tubes for power and transmission cable CAUTION 1...

Страница 92: ...to the PCB side and secure 600mm 23 5 8inch space near the compressor and PCB side of the air conditioner for service h Outdoor unit is representative Actual appearance of outdoor unit may be different but clearances will stay the same Install the unit so that its discharge port faces to the wall of the building Keep a distance 500mm 19 11 16inch or more or more between the unit and the wall surfa...

Страница 93: ...f side discharge unit Unit mm inch 1 Where there is an obstacle on the air intake side n No obstacle above Obstacle on the suction side only Obstacle on the both sides n Obstacle above too Obstacle on the air intake side too Obstacle on the air intake side and both sides 2 Where there is an obstacle on the discharge side n No obstacle above n Obstacle above too 3 Where there are obstacles on both ...

Страница 94: ... against induced lightning or indirect stroke 4 If the building has no lightning protection outdoor may be damage from lightning This should be informed to cus tomer or building owner in advance Building Height ft 66 98 148 197 Protection Angle 55 45 35 25 Ground Safe zone Lightning rod Protection Angle 25 55 1 5m 1 5m 1 5m Lightning rod h Regarding the safety from atmosphere electricity follow th...

Страница 95: ...ightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Screw Driver Drill M C f 3 5 F14 5 Measuring Tape Blade Core drill Spanner Torque Wrench Soap Foam Thermometer Hexagonal wrench 4mm 5mm Hook Meter Multi Tester Flare Set Suction Line piping Bigger diameter Evaporator Line piping Smaller diameter Torque wrench Continuous Torque wrench 250m...

Страница 96: ...it type installation position should be over 2m 6 6ft from the floor Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation system Limitation in piping work design for earthquake proof and prevention against thermal stress CAUTION Total amount of refrigerant in the system 0 3kg m3 0 019 lb ft3 Volume of the room at which indoor unit of the least cap...

Страница 97: ...umber of open space N number of louver 1 Effective face area Af ho W N Louver opening rate n Af A Af A n Effective face area of cross section ho h W Front view H 15 Opening rate by louver radian Opening rate and suction should be considered for lou vered outdoor room Do not use S type louver CAUTION The problem in case the louver opening rate is small 1 Noise can occur due to the increased velocit...

Страница 98: ...geaircon com All rights reserved Printed in Korea The specifications designs and information in this brochure are subject to change without notice The air conditioners manufactured by LG have received ISO9001 certificate for quality assurance and ISO14001 certificate for environmental management system December 2012 ...

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